[Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.1"] [White "Carlsen, Magnus"] [Black "Radjabov, Teimour"] [Result "1/2-1/2"] [ECO "D53"] [WhiteElo "2847"] [BlackElo "2765"] [Annotator "TA"] [PlyCount "72"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,72,15,29,11,24,0,0,0,0,0,0,0,0,-23,-19,-58,0,-15,0,-20,0,0,0,0,0,-22, -22,-22,-27,-16,-16,-16,-16,-16,-16,-25,-16,-22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 c6 8. Rc1 {D53: Queen's Gambit Declined: 4 Bg5 Be7: Early deviations.} Nd7 $1 {[#] 8...Nd7 scores better than 8...0-0.} 9. h4 $146 ({ Predecessor:} 9. Bd3 O-O 10. O-O dxc4 11. Bxc4 e5 12. d5 Nb6 13. b3 cxd5 14. Bxd5 Qe7 15. Qc2 Rd8 16. Qe4 Rb8 17. Rfd1 Kh8 18. a4 g6 19. g4 Be6 20. Bxe6 Qxe6 {0-1 (43) Martirosyan,H (2622)-Nakamura,H (2736) Chess.com INT 2020}) 9... g6 10. Bd3 Bg7 11. cxd5 exd5 12. b4 a6 13. h5 g5 14. Ne2 Qe7 15. a3 Nf6 16. Ne5 Ng4 17. Nxg4 Bxg4 18. Qc2 O-O 19. Bf5 Bxf5 20. Qxf5 a5 21. O-O axb4 22. axb4 Qxb4 23. Rb1 Qe7 24. Rb6 Ra7 25. Rfb1 {The position is equal.} Rd8 26. Ng3 Qc7 27. Qc2 Rda8 28. Nf5 Ra1 {[#] ...Qxb6 is the strong threat.} 29. Qb2 Rxb1+ 30. Qxb1 Ra7 31. g4 Bf8 32. Kg2 Qd7 33. Kf3 Qc8 34. Kg2 Qd7 35. Kf3 Qc8 36. Kg2 Qd7 {Weighted Error Value: White=0.05/Black=0.05} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.1"] [White "Aronian, Levon"] [Black "So, Wesley"] [Result "1-0"] [ECO "D02"] [WhiteElo "2781"] [BlackElo "2770"] [Annotator "TA"] [PlyCount "73"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,73,0,9,0,12,0,0,-5,0,10,75,58,62,88,87,87,90,59,77,51,72,73,38,13,45, 14,96,28,30,0,-10,-29,97,91,101,95,80,84,79,31,209,2,1,1,1,1,1,1,1,2,4,4,395, 379,420,353,430,430,412,412,387,381,29993,29990,29993,29993]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 Qb6 6. dxc5 {D02:1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Qxb2 7. Rb1 Qc3 8. Bb5 {The position is equal.} g6 9. e4 Bg7 {[#]} (9... Nxe4 $6 10. Be5 $18) (9... Qxc5 $2 10. Be3 $18) (9... dxe4 $11 {remains equal.} 10. Be5 Qa3) 10. Be5 $146 { [%CAl Re5c3]} ({Predecessor:} 10. O-O Nxe4 11. Nxe4 dxe4 12. Ng5 Qxc5 13. Nxe4 Qf5 14. Bxc6+ bxc6 15. Nd6+ exd6 16. Qxd6 {0-1 (39) Demchenko,A (2632)-Le,Q (2709) Chess.com INT 2020}) 10... Qa5 11. exd5 {[%mdl 64] Pin} a6 12. Bxc6+ bxc6 13. d6 O-O 14. dxe7 Re8 15. O-O Qxc5 16. Re1 Bf5 17. Bd4 Qd5 (17... Qxc2 $11 18. Qxc2 Bxc2) 18. Rb3 (18. Qc1 $16) 18... c5 $11 19. Re5 Qd7 20. Bxc5 Ne4 21. Rd3 $16 (21. Rxe4 Bxe4 22. Qc1 Bf5 $17) 21... Qb7 22. Nxe4 {And now Nd6 would win.} Bxe5 23. Nxe5 Qxe4 24. Rd8 {Strongly threatening g4.} Kg7 $2 {[#]} (24... Qxe5 $2 25. Rxa8 Bd7 26. Rd8 $18 (26. Rxa6 Qxc5 27. Qxd7 Rxe7 $16)) ( 24... Rc8 $14 25. h4 Qxh4 26. Rxc8 Bxc8) 25. f3 $2 Qxc2 $11 (25... Qxe5 $2 26. Bd4 $18) 26. Qd4 {Threatening mate with Ng4+.} f6 $132 {[%mdl 2048] Black puts up resistance} 27. Rxa8 Rxa8 28. Nc4 $1 {Black must now prevent Qd8.} Qb1+ ({ Avoid the trap} 28... Qxa2 $2 29. Qd8 $1 $18) 29. Kf2 {Qd8 is the strong threat.} Qxa2+ 30. Kg3 {White wants to mate with Qd8.} Qe2 $2 {[%mdl 8192] [#]} (30... Re8 $11) 31. Qd8 $1 $18 {[%CAl Rd8f8] Qf8+ would kill now.} Qe1+ (31... g5 32. Qxa8) 32. Bf2 Qc1 {[%CAl Rc1g5]} 33. e8=N+ {[%mdl 64] Double Attack, Discovered Attack} Kh6 {[%CAl Rc1g5]} 34. Qxf6 {[%CAl Rf6h4]} ({Wrong is} 34. Be3+ $2 {[#]} Qxe3 $3 {[%mdl 512]} 35. Qxf6 (35. Qxa8 $2 {loses.} Qe1+ 36. Kf4 Bd3 $19) 35... Qxe8 $19) 34... Rxe8 35. Nd6 {[%mdl 64] Double Attack} Qc7 $2 ( 35... Qg5+ $18 36. Qxg5+ Kxg5) 36. Bb6 Qb8 37. Bd4 {[%CAl Rf6h4] Weighted Error Value: White=0.18/Black=0.60} 1-0 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.1"] [White "Mamedyarov, Shakhriyar"] [Black "Firouzja, Alireza"] [Result "1/2-1/2"] [ECO "E21"] [WhiteElo "2770"] [BlackElo "2759"] [Annotator "TA"] [PlyCount "102"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,102,15,17,0,0,0,6,2,20,18,14,19,34,30,40,22,81,13,25,21,19,12,17,0,6, 0,0,-127,0,0,0,0,0,0,0,0,0,0,11,26,8,0,0,0,0,0,0,0,0,0,313,319,304,315,413,410, 464,464,401,212,207,206,198,131,118,0,189,187,240,221,269,134,134,134,138,134, 182,182,175,170,150,40,38,24,27,22,22,0,0,0,0,0,2]} 1. d4 {Tisdall,J} Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. Bg5 h6 6. Bh4 c5 7. Rc1 {E21: Nimzo-Indian: 4 Nf3.} cxd4 8. Nxd4 d5 $1 {The main line 8...d5 scores better than 8...Nc6.} 9. e3 Bxc3+ 10. bxc3 dxc4 11. Bxc4 e5 12. Nb5 {[#] And now Qxd8 would win.} Nc6 $146 ({Predecessor:} 12... Qxd1+ 13. Rxd1 Nc6 14. Bxf6 gxf6 15. O-O Na5 16. Bd5 Be6 17. Nc7 Bxd5 18. Nxd5 Kg7 {1-0 (42) Graf,A (2625)-Luther,T (2510) Recklinghausen 1998 CBM 067 [Tisdall,J]}) 13. O-O Na5 (13... Qe7 $11 {remains equal.}) 14. Bxf6 (14. Be2 $16) 14... Qxf6 $11 15. Bd5 Bd7 16. c4 Bc6 17. Qa4 b6 18. Qa3 Rfd8 19. Rfd1 {[#]} (19. e4 $11) 19... Rd7 (19... Rxd5 $1 $17 { [%mdl 512]} 20. cxd5 (20. Rxd5 Nxc4 21. Qd3 Nb2 $17) 20... Bxb5) 20. Nc3 Rad8 21. h3 Qg6 {Hoping for ...Nxc4!} 22. e4 Bxd5 23. cxd5 Nc4 24. Qb4 Nd6 25. f3 f5 26. Re1 fxe4 27. Nxe4 Nf5 {Strongly threatening ...Nh4!} 28. Rc6 Qf7 29. d6 Qd5 30. Rc7 Nxd6 $2 {[%mdl 8192] [#]} (30... Qd4+ $11 31. Qxd4 exd4) 31. Nf6+ $1 $18 {[%mdl 512]} gxf6 32. Qg4+ {[%mdl 64] Double Attack} Kh8 33. Rxd7 {[%csl Gd7][%CAl Rg4g7]} Rg8 34. Qh4 {[%CAl Rh4h6][%mdl 64] Double Attack} Rg6 35. Kh1 (35. Qh5 $142 Qc5+ 36. Kh2) 35... Qxa2 {[%csl Gg6][%CAl Ra2g2]} 36. Rg1 Nf5 37. Rd8+ (37. Qe1 $1 $18) 37... Kh7 $16 38. Rd7+ (38. Qe1 $1 $16) 38... Kh8 $1 $18 {[#]} 39. Qe1 Qc4 (39... Rg7 $142 40. Rd8+ Rg8 41. Rxg8+ Kxg8) 40. g4 ({ Wrong is} 40. Rxa7 $2 Ng3+ 41. Kh2 Qf4 $19) 40... Ng7 41. Qe4 ({Don't take} 41. Rxa7 $6 Ne6 $18) (41. Qe3 $18 {is more deadly.}) 41... Qxe4 $16 42. fxe4 { [%mdl 4096] Endgame KRR-KRN} Ne6 43. Rxa7 Ng5 44. Kg2 Nxe4 {[#]} 45. Rd1 $1 Rg7 46. Ra8+ ({White should play} 46. Rdd7 $16 Rxd7 47. Rxd7) 46... Kh7 $14 47. Rdd8 f5 48. Rh8+ Kg6 {The position is equal.} 49. Rab8 fxg4 50. Rxb6+ Nf6 51. hxg4 Kg5 {White really could win this. Weighted Error Value: White=0.27/ Black=0.25} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.1"] [White "So, Wesley"] [Black "Aronian, Levon"] [Result "1-0"] [ECO "A18"] [WhiteElo "2770"] [BlackElo "2781"] [Annotator "TA"] [PlyCount "111"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,111,38,23,16,0,0,8,8,0,14,14,14,14,19,15,25,26,29,-13,-2,-16,0,-36,0, 0,0,0,0,0,69,-6,-6,-2,0,0,0,-18,-8,-19,-12,-23,0,0,0,0,0,0,0,-1,0,0,0,0,0,0,0, 0,0,-46,0,0,0,0,141,156,151,156,143,141,125,124,252,231,245,248,444,441,372, 244,308,231,346,337,293,166,564,559,557,557,557,549,572,522,29978,29979,29979, 29980,29980,29981,29981,29982,29982,29983]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Ne4 6. Nf3 Bf5 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4).} 7. d3 (7. Be2 {with more complications.} d4 8. Nxe4 Bxe4 9. Bc4 Nc6 10. O-O) 7... Nxc3 8. bxc3 c5 {The position is equal.} 9. d4 Qa5 10. Bd2 Nc6 11. c4 Qd8 12. Qb3 Be4 13. Qxb7 Rc8 {[#]} 14. cxd5 $1 $146 { [%mdl 8] A top novelty.} (14. Ng5 $5 {[%CAl Rb7f7]} Rc7 15. Qb5 $16) ({ Predecessor:} 14. Ng5 Be7 15. Nxe4 dxe4 16. d5 Nxe5 17. Qb5+ Qd7 18. Rb1 Qxb5 19. Rxb5 Kd7 20. Bc3 {1-0 (39) Le,Q (2709)-Pichot,A (2630) chess.com INT 2020}) 14... Bxd5 {Black wants to play ...Be7.} 15. e6 {[%csl Ge6][%CAl Rb7f7]} Be7 16. exf7+ (16. Qd7+ $5 Qxd7 17. exd7+ Kxd7 18. dxc5 $15) 16... Kf8 17. Qa6 Nxd4 18. Nxd4 cxd4 19. Bb5 (19. Qxa7 Kxf7 20. Qa4 Qd6 $19) 19... Rc2 (19... Bxg2 $11 20. Ba5 Qd5 21. Qxc8+ Kxf7) 20. Ba5 (20. Qxa7 Rc5 $15) (20. Qa4 $14 Rb2 21. Bc4 (21. Bc1 $2 Rb4 $19) 21... Bxf7 22. Bxf7 Kxf7 23. Qc4+ Kg6 24. Qd3+ (24. Qe6+ Bf6 $17) 24... Kf7 25. O-O) 20... Qc8 $11 21. Qxc8+ Rxc8 22. O-O Kxf7 23. a4 a6 24. Bd7 Rc4 25. Bf5 Bb4 26. Bxb4 Rxb4 27. Bd3 Bc4 28. Rab1 Rxa4 29. Rb7+ Kf6 30. Rb6+ Ke5 31. Re1+ Kd5 32. Be4+ Kc5 33. Rc6+ Kb5 {And now ...Re8 would win.} 34. Rc7 {Black must now prevent Bc6+.} Rb4 35. Rc1 {Strongly threatening R1xc4! } Be2 36. f3 {Threatens to win with Kf2.} Rb8 (36... Ka5 $11 {keeps the balance.}) 37. Kf2 $1 $16 {[%CAl Rf2e2][%mdl 1024] White has strong compensation.} ({But not} 37. Rxg7 h6 $14) 37... d3 38. R7c5+ Kb6 39. Rc6+ $1 Ka5 {[#]} 40. Ra1+ Kb5 {Black cannot hold the game after this.} (40... Ra4 $16 41. Rxa6+ Kxa6 42. Rxa4+ Kb5) 41. Rcxa6 $18 Rb2 42. Ke3 ({Not} 42. Bxh7 Bd1+ 43. Kg3 Be2 $14) 42... Bf1 $2 (42... Kc4 {might work better.} 43. Ra7 h5 44. Rxg7 Re8) 43. Bc6+ Kc4 {aiming for ...Re2+.} 44. Rxf1 {Rc1+ is the strong threat.} Re2+ 45. Kf4 Rxg2 (45... d2 $142) 46. Rc1+ Rc2 47. Raa1 (47. Rd1 $142) 47... Kd4 $2 {[#]} (47... Rxc1 48. Rxc1+ Kd4) 48. Rxc2 $1 ({Stronger than} 48. Ra4+ Kc5 $11) 48... dxc2 {[%mdl 4096] Endgame KRB-KR} 49. Be4 Rf8+ 50. Kg3 Ke3 {If only Black now had time for ...Rc8....} 51. Rc1 Rxf3+ 52. Bxf3 {White mates.} Kd2 {[#]} 53. Rxc2+ $3 Kxc2 54. Be4+ {[%mdl 64] Double Attack} Kc3 55. Bxh7 Kd4 56. Kf4 {Weighted Error Value: White=0.11/Black=0.49} 1-0 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.1"] [White "Radjabov, Teimour"] [Black "Carlsen, Magnus"] [Result "1/2-1/2"] [ECO "D41"] [WhiteElo "2765"] [BlackElo "2847"] [Annotator "TA"] [PlyCount "112"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,112,27,26,27,27,-13,39,31,32,35,19,29,23,23,20,20,22,25,37,50,48,45, 35,33,34,40,32,31,39,40,61,66,89,80,93,95,144,137,142,139,145,109,109,106,108, 102,104,106,98,91,91,91,92,93,97,103,96,101,121,121,160,160,207,148,172,143, 143,137,199,195,206,191,191,143,129,121,129,102,102,102,107,54,55,39,40,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5.} dxe4 $1 {[%mdl 4] now scores much better than the old 7...Nc6.} 8. Qxd8+ Kxd8 9. Ng5 {White is slightly better.} Be6 10. Nxe6+ fxe6 11. Bg5 h6 12. O-O-O+ Ke7 $1 13. Bxf6+ gxf6 14. Nxe4 {[#]} f5 $146 ({Predecessor:} 14... Bg7 15. Ng3 f5 16. Bd3 Nc6 17. Rhe1 Be5 18. Nxf5+ exf5 19. f4 Rad8 20. fxe5 Rhf8 { 1/2-1/2 (32) Radjabov,T (2765)-So,W (2770) chess24.com INT 2020}) 15. Nc5 { aiming for Bc4.} Kf6 {[#]} 16. Rd8 $1 $36 {[%mdl 2048] Strongly threatening Bc4. White fights for an advantage.} Bg7 17. Rxh8 Bxh8 18. Bc4 Nc6 19. Nxe6 Ne5 {[#] Threatens to win with ...Rc8.} 20. Bd5 Nd3+ 21. Kd2 Nb4 22. Bxb7 Rb8 23. Nc5 Rd8+ 24. Kc3 a5 25. a3 Kg6+ 26. Kb3 Nd3 27. Nxd3 Rxd3+ $16 {[%mdl 4096] Endgame KRB-KRB} 28. Kc4 Rd7 {White must now prevent ...Rc7+.} 29. Bc6 Rc7 30. Kb5 Bxb2 31. a4 Rc8 32. Rd1 Bc3 33. f4 Rb8+ 34. Kc4 Bb4 35. Rd5 Rf8 36. Bd7 h5 37. g3 Be1 38. Rd6+ Kg7 39. Rd1 Bb4 (39... Bf2 $16 40. Rd2 Be3) 40. Rd5 $18 Kg6 41. Kd4 Be1 42. Rd6+ Kg7 43. Re6 Bb4 {next ...Rd8 is good for Black.} 44. Be8 h4 45. gxh4 Rf6 46. Kd5 (46. Rxf6 $16 Kxf6 47. Ke3) 46... Bd2 $1 $14 47. Rxf6 ( 47. Kd6 {is more complex.} Bxf4+ 48. Ke7 Rxe6+ 49. Kxe6 Bxh2 50. Kxf5 Bg3 51. Kg5) 47... Kxf6 {KB-KB} 48. Bh5 Bxf4 {The position is equal.} 49. Bf3 Bxh2 50. Be2 Bg3 51. h5 Be1 52. Bf3 Bb4 53. Bd1 $1 Bd2 54. Bf3 Bb4 55. Bd1 Bd2 56. Bf3 Bb4 {White really could win this. Weighted Error Value: White=0.06/Black=0.06} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.1"] [White "Firouzja, Alireza"] [Black "Mamedyarov, Shakhriyar"] [Result "0-1"] [ECO "D42"] [WhiteElo "2759"] [BlackElo "2770"] [Annotator "TA"] [PlyCount "86"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 21,86,16,35,18,35,0,2,0,0,0,-5,-5,0,0,0,0,0,0,0,0,8,21,45,41,51,43,63, 74,72,70,150,60,70,56,57,52,49,12,72,0,0,-22,43,43,43,43,45,-62,-67,-211,-214, -330,-317,-508,-512,-477,-441,-404,-240,-227,-103,-269,-265,-596,-596,-683, -592]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 cxd4 8. exd4 Be7 9. O-O O-O 10. Re1 Bf6 11. Be4 h6 12. Bb1 {D42: Queen's Gambit Declined: Semi-Tarrasch: 5 cxd5 Nxd5 6 e3 Nc6 7 Bd3 .} Nde7 {[%CAl Rc6d4]} 13. Qd3 {[%csl Gb1][%CAl Rd3h7]} (13. Be3 {with more complications.} Bd7 14. Ne4 Nf5 15. a3 Rc8 16. Qd3) 13... Ng6 $1 {[%CAl Rc6d4]} 14. Be3 { The position is equal.} b6 15. Qe4 Bb7 16. Qg4 Nce7 {[#]} 17. Bc2 $146 ({ Predecessor:} 17. Be4 Bxe4 18. Nxe4 Nd5 19. Rac1 Kh7 20. g3 Be7 21. Qh5 Nxe3 22. Rxe3 Kg8 23. Ne5 Nxe5 24. dxe5 {0-1 (41) Babiarz,A (1831)-Redzisz,M (2105) Szklarska Poreba 2020}) 17... Rc8 18. Rad1 Bxf3 19. Qxf3 Nd5 20. Bc1 Nxc3 21. bxc3 Qd5 22. Be4 Qxa2 {[#]} 23. Bxh6 $1 Nh4 (23... b5 24. Rd3) 24. Qg4 { And now Bxg7! would win.} Nf5 25. Bd2 g6 (25... Qc4 $14) 26. g3 (26. h4 $16) 26... Nd6 27. Bd3 {Qf4 is the strong threat.} Qd5 28. h4 Bg7 29. Re2 e5 (29... Rc7 $11) 30. Bb1 (30. Ba6 $16 Rc7 31. dxe5) 30... exd4 $11 31. cxd4 Qxd4 (31... Rce8 $11 32. Be3 a5) 32. Qxd4 $14 Bxd4 33. Bh6 $1 {[%CAl Rh6f8]} Bg7 34. Bxg7 ( 34. Rxd6 $14 Bxh6 35. Ba2) 34... Kxg7 $15 35. Bxg6 {[#]} Nb5 $1 $19 {[%CAl Rb5c3] Threatens to win with ...Nc3.} 36. Bf5 (36. Re5 $142 Nc3 37. Rd7 Kxg6 38. Rxa7) 36... Rc5 37. g4 $2 (37. Bg4 {might work better.} Nc3 {[%mdl 64] Double Attack} 38. Re7 Nxd1 39. Bxd1) 37... Nc3 $1 {[%csl Bd1,Be2][%mdl 64] Double Attack} 38. Red2 Nxd1 39. Rxd1 Rxf5 40. gxf5 Rh8 (40... a5 $19 {has better winning chances.} 41. Kf1 a4) 41. Rd4 $2 (41. Rd7 $17) 41... a5 42. Kg2 $2 (42. Kf1) 42... Ra8 43. f6+ Kg6 {Weighted Error Value: White=0.50/Black=0.21 } 0-1 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.1"] [White "Nakamura, Hikaru"] [Black "Le, Quang Liem"] [Result "1/2-1/2"] [ECO "E34"] [WhiteElo "2736"] [BlackElo "2709"] [Annotator "TA"] [PlyCount "81"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,81,19,14,20,11,3,25,26,25,23,20,47,37,26,16,36,33,64,46,104,92,95,95, 91,118,115,52,47,51,75,52,56,52,51,49,45,44,29,41,79,81,69,82,124,122,122,101, 97,52,54,52,54,49,48,22,27,16,18,5,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 Qxd5 6. e3 c5 7. Bd2 Bxc3 8. bxc3 O-O {E34: Nimzo-Indian: Classical: 4...d5.} 9. Nf3 b6 10. c4 Qh5 {White has an edge.} 11. Be2 Bb7 12. O-O Nbd7 {[#]} 13. Rfe1 $146 ({Predecessor:} 13. Rfd1 Rfe8 14. Bc3 Qg6 15. Qxg6 hxg6 16. a4 Rac8 17. a5 Bxf3 18. gxf3 cxd4 19. Bxd4 {1/2-1/2 (54) Bareev,E (2719)-Huzman,A (2571) Panormo 2001}) 13... Rfd8 14. a4 {[%CAl Ba2a4, Ba4a5][%mdl 32]} Rac8 15. a5 cxd4 16. exd4 Qg6 (16... Bxf3 $14 17. Bxf3 Qh4) 17. Qxg6 $16 hxg6 {[#]} 18. Ng5 $1 Nb8 {[%CAl Bd7b8,Bb8c6,Bc6e7,Be7f5,Bf5d4] [%mdl 32]} 19. axb6 axb6 {[#]} 20. Reb1 ({White should play} 20. Be3 $1 $16) 20... Nc6 21. Nf3 Ne7 22. Ne5 ({Don't play} 22. Rxb6 Bxf3 23. gxf3 (23. Bxf3 Rxd4 24. Bg5 Rdxc4 $15) 23... Nf5 $15) (22. d5 $5) 22... Nf5 23. Rxb6 Nxd4 24. Bf1 Nd7 25. Nxd7 Rxd7 26. Bc3 e5 27. Ra7 Rcc7 28. f4 Be4 29. Rxc7 Rxc7 30. Rb8+ Kh7 31. Re8 {Threatens to win with Bxd4.} Ne6 32. Bxe5 Ra7 33. g3 Ra2 34. Re7 Kg8 35. Bh3 Bf5 $1 {[%CAl Rf5h3] The position is equal.} 36. Bg2 f6 37. Bd6 { Strongly threatening Bd5.} Ra1+ 38. Kf2 $1 {And now Bd5 would win.} Ra2+ 39. Kg1 {Bd5 is the strong threat.} Ra1+ 40. Kf2 $1 {Black must now prevent Bd5.} Ra2+ 41. Kg1 {Weighted Error Value: White=0.08/Black=0.09} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.1"] [White "Le, Quang Liem"] [Black "Nakamura, Hikaru"] [Result "1/2-1/2"] [ECO "E06"] [WhiteElo "2709"] [BlackElo "2736"] [Annotator "TA"] [PlyCount "86"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 18,86,20,20,17,1,8,4,6,8,0,9,12,10,11,5,15,5,5,9,29,0,14,10,24,16,13,4, 11,12,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. g3 O-O 6. Bg2 dxc4 7. Ne5 c5 8. dxc5 Qxd1+ 9. Nxd1 Bxc5 10. O-O Nc6 {E06: Closed Catalan: Early deviations.} 11. Bxc6 bxc6 12. Be3 Bb6 13. Bxb6 axb6 14. Nc3 Nd5 15. a4 f6 16. Nxc4 {next Nxd5 is good for White.} Rb8 17. Rfc1 Ba6 18. Ne4 {[#]} Rfc8 $146 ({ Predecessor:} 18... Rfd8 19. f3 e5 20. Kf2 Ne7 21. g4 Bxc4 22. Rxc4 Ra8 23. b3 c5 24. e3 Nc6 {1/2-1/2 (57) Adhiban,B (2701)-Gonzalez Vidal,Y (2567) Havana 2019}) 19. Kf1 c5 20. b3 Rc6 21. Ke1 Bxc4 {The position is equal.} 22. Rxc4 Ra8 23. Rcc1 Kf7 24. a5 f5 25. Nd2 bxa5 26. Nc4 {Strongly threatening Ne5+.} Rca6 27. Ne5+ {[%mdl 64] [#] Discovered Attack} Ke7 28. Nd3 Rb6 29. Ra3 Nb4 30. Rxc5 Nxd3+ 31. exd3 $11 {[%mdl 4096] Endgame KRR-KRR} Rab8 32. Rcxa5 Rxb3 33. Ra7+ Kf6 {Threatening ...Rb1+.} 34. Rxb3 Rxb3 {KR-KR} 35. Ke2 Rb2+ 36. Kf3 Rb3 37. Ke3 Rb1 38. h4 Rb3 39. Rc7 e5 40. Rc6+ Kf7 41. Rc7+ Kf6 42. Rc6+ Kf7 43. Rc7+ Kf6 {Not much happened in this game. Weighted Error Value: White=0.02/Black=0. 02} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.2"] [White "Carlsen, Magnus"] [Black "Radjabov, Teimour"] [Result "1/2-1/2"] [ECO "B65"] [WhiteElo "2847"] [BlackElo "2765"] [Annotator "TA"] [PlyCount "72"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 27,72,20,13,22,6,0,10,14,51,28,22,18,22,0,16,14,16,-16,-10,-18,0,-3,-8, -17,28,22,23,0,0,0,61,63,111,123,107,111,104,117,120,0,0,0,128,0,0,0,123]} 1. e4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 d6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4 10. Qxd4 h6 11. Bh4 Qa5 12. e5 dxe5 13. Qxe5 Qxe5 14. fxe5 Nd5 $1 15. Bxe7 {B65: Sicilian: Richter-Rauzer: 7...Be7 8 0-0-0 0-0 9 f4 Nxd4.} Nxe7 16. Bd3 Nc6 17. Rhe1 Rd8 18. Be4 {And now Bxc6 would win.} (18. b4 $5) 18... Bd7 19. Nb5 Rab8 {[#]} 20. Bf3 $146 ({Predecessor:} 20. Nd6 Nxe5 21. Bxb7 f6 22. b3 Kf8 23. c4 a5 24. Be4 Ke7 25. Kc2 Bc6 26. Nf5+ {1/2-1/2 (40) Ozalp,A (2116)-Savoca,A (2449) ICCF email 2016}) 20... Ne7 21. Nd6 ({Don't go for} 21. Nxa7 $2 Ra8 $17) 21... Bc6 22. c4 Rd7 23. b4 b6 24. Kb2 Rbd8 25. Kc3 $1 a5 26. bxa5 bxa5 27. Bxc6 Nxc6 28. c5 Nb4 (28... Rc7 $11) 29. Kc4 $14 Nxa2 30. Ra1 Nb4 31. Rxa5 Nc6 32. Ra6 Rc7 33. Nb5 Rcc8 34. Nd6 Rc7 35. Nb5 Rcc8 {[#] White must now prevent ...Rd5.} 36. Nd6 Rc7 {Weighted Error Value: White=0.18/Black=0.14} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.2"] [White "Aronian, Levon"] [Black "So, Wesley"] [Result "1-0"] [ECO "D02"] [WhiteElo "2781"] [BlackElo "2770"] [Annotator "TA"] [PlyCount "91"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,91,-3,19,16,11,11,11,6,6,6,15,3,34,20,64,55,62,59,66,65,62,66,91,92, 103,88,122,126,150,151,145,161,176,166,158,120,122,100,103,102,103,94,132,60, 60,63,50,52,52,52,104,40,43,39,46,34,89,95,89,21,25,33,1175,1161,29974,29974, 29987,29984,29983,29974,29974,29975,29975,29976,29976,29977,29976,29977,29975, 29976,29976,29977,29979,1245]} 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 e6 5. c3 Bd6 6. Bb5+ {D02:1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4. } Nc6 7. Bxc6+ $1 {[%mdl 4] outshines the older 7.Ne5.} bxc6 8. Bxd6 {The position is equal.} Qxd6 9. Qa4 O-O 10. Qa3 Ne4 {[#]} (10... a5 {with more complications.} 11. O-O Ba6 12. Rc1 Nd7 13. Nbd2 Rfb8) 11. Nfd2 $5 $146 { [%mdl 8] New and interesting.} ({Predecessor:} 11. Nbd2 cxd4 12. Qxd6 Nxd6 13. cxd4 Ba6 14. Ne5 f6 15. Nd7 Rfe8 16. Nc5 Bc8 17. f3 {0-1 (46) Kamsky,G (2665) -Makhnev,D (2480) Europe Echecs INT 2021}) 11... cxd4 12. Nxe4 Qxa3 13. Nxa3 { Nc5 is the strong threat.} dxe4 14. cxd4 Rb8 15. b3 $1 c5 16. dxc5 Ba6 17. Rc1 Rfd8 18. Nc4 Rd5 19. Nd6 f5 20. f3 Bd3 21. Kf2 Kf8 22. g4 Ke7 23. Rhg1 g6 24. Rg3 exf3 25. Rxf3 Ba6 26. e4 ({White should try} 26. Rc2 $16) 26... Rd2+ $14 27. Kg1 Rxa2 28. exf5 gxf5 29. gxf5 {Black must now prevent f6+.} exf5 (29... Rg8+ $14 30. Kh1 exf5) 30. Re1+ (30. Nxf5+ $16 Ke6 31. Ng7+ Ke5 32. c6) 30... Kd7 31. Nxf5 Kc6 32. Rc1 Rd2 {[#]} ({Better is} 32... Rg8+ $14 33. Kh1 Rd8) 33. Ne7+ $1 $16 Kd7 {[#]} 34. Re3 (34. Ra1 $1 $16 {Hoping for Re3.} Kxe7 (34... Bb7 35. Rxa7) 35. Rxa6) 34... Rf8 35. Ra1 Rff2 $2 {[%mdl 8192] This costs Black the game.} 36. Rxa6 $18 Rg2+ 37. Kf1 {White mates.} Rxh2 38. Rxa7+ Ke8 39. Nc6+ Kf8 40. Rf3+ Kg8 41. Ne7+ Kg7 42. Nd5+ Kg8 43. Nf6+ Kh8 {[#]} 44. Rxh7+ $1 Rxh7 45. Nxh7 Kxh7 46. Rg3 {Weighted Error Value: White=0.09/Black=0.26} (46. Rc3 $142 Rd8 47. c6 Rf8+ 48. Ke2 Re8+ 49. Kd3 Rd8+ 50. Ke3 Re8+ 51. Kd4 Rd8+ 52. Kc5) 1-0 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.2"] [White "Mamedyarov, Shakhriyar"] [Black "Firouzja, Alireza"] [Result "1/2-1/2"] [ECO "A58"] [WhiteElo "2770"] [BlackElo "2759"] [Annotator "TA"] [PlyCount "31"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,31,23,55,46,47,54,52,43,40,39,35,-26,-7,-18,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 {A58: Benko/Volga Gambit: Lines with 5 bxa6.} Bg7 7. e4 O-O 8. Nf3 {White is slightly better.} Qa5 { White should prevent ...Nxe4.} 9. Bd2 {Strongly threatening e5.} Bxa6 10. e5 $5 {[%mdl 4] Leaves trodden paths.} (10. Be2 $14) 10... Ng4 $11 {[#]} 11. d6 $146 {The position is equal.} ({Predecessor:} 11. Ne4 Qc7 12. Bxa6 Nxa6 13. O-O Nxe5 14. Bc3 Nxf3+ 15. Qxf3 d6 16. a3 Bxc3 17. bxc3 {1-0 (37) Santos,M (2329) -Mandetta,J (2310) Sao Bernardo do Campo 2015}) 11... exd6 {...Bxf1 is the strong threat.} 12. Nd5 Qd8 13. Bg5 Qa5+ 14. Bd2 Qd8 15. Bg5 Qa5+ 16. Bd2 { Weighted Error Value: White=0.12/Black=0.04} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.2"] [White "So, Wesley"] [Black "Aronian, Levon"] [Result "1/2-1/2"] [ECO "A06"] [WhiteElo "2770"] [BlackElo "2781"] [Annotator "TA"] [PlyCount "62"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,62,0,0,0,0,-12,-4,-8,0,-18,-18,-8,-14,-10,-9,-21,15,10,13,9,13,12,14, 12,41,41,41,38,47,47,37,43,29,16,50,0,11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. b3 d5 2. Bb2 Nf6 3. Nf3 Bg4 4. h3 Bxf3 5. exf3 e6 6. g3 {[#] A06: Réti Opening: 1 Nf3 d5.} g6 $146 ({Predecessor:} 6... c5 7. Bg2 Nc6 8. f4 Bd6 9. O-O O-O 10. Re1 Re8 11. c4 d4 12. d3 Qd7 {1-0 (54) So,W (2765)-Navara,D (2738) Saint Louis 2019}) 7. Bg2 Bg7 8. O-O O-O 9. f4 c5 10. d3 Nc6 11. c4 Rc8 12. Nc3 dxc4 13. dxc4 Qe7 14. Bxc6 Rxc6 15. Qe2 Rd8 16. Rad1 b6 17. Rxd8+ Qxd8 18. Rd1 Rd6 19. Rxd6 Qxd6 20. Nb5 Qd7 21. Qf3 Ne8 22. Bxg7 Kxg7 {The position is equal. } 23. Qa8 (23. g4 {is more complex.} a6 24. Nc3 Nf6 25. Qe3 Qd8 26. Kf1) 23... Nc7 24. Nxc7 Qxc7 $11 {[%mdl 4096] Endgame KQ-KQ} 25. h4 h5 26. Qe4 Qd7 27. Qe5+ Kh7 28. Qb8 Kg7 29. Qe5+ Kh7 30. Qf6 Kg8 31. Qe5 Kh7 {Weighted Error Value: White=0.04/Black=0.05} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.2"] [White "Radjabov, Teimour"] [Black "Carlsen, Magnus"] [Result "1/2-1/2"] [ECO "D39"] [WhiteElo "2765"] [BlackElo "2847"] [Annotator "TA"] [PlyCount "80"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 21,80,0,28,35,35,29,29,29,27,21,18,16,23,26,21,26,27,15,36,37,37,37,39, 21,27,15,72,72,71,66,72,-8,-8,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 6. e4 c5 7. Bxc4 cxd4 8. Nxd4 Qa5 9. Bxf6 Bxc3+ 10. bxc3 Qxc3+ 11. Kf1 Qxc4+ (11... gxf6 { seems wilder.} 12. Rc1 Qa5 13. Bb5+ Ke7 14. e5 fxe5 15. Qh5 Nd7) 12. Kg1 $1 { D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} Bd7 {[#]} ({ But not} 12... gxf6 $2 13. Rc1 $18) 13. Rc1 $1 Qb4 14. Bxg7 {White has an edge. } Rg8 15. Bf6 {Hoping for Nf5!} Rg6 $1 {[%CAl Rg6f6] [#]} 16. a3 $1 Qd6 17. e5 Qd5 {[%csl Gg6][%CAl Rd5g2]} 18. f3 $36 {[%mdl 2048] White is pushing.} Nc6 19. Nxc6 Qxd1+ 20. Rxd1 Bxc6 21. Kf2 Bd5 $1 22. Rc1 Kd7 $1 23. Rhd1 {[#]} Rc8 $146 (23... b5 $11 {keeps the balance.}) ({Predecessor:} 23... b5 24. Rc5 a6 25. Rd4 Rgg8 26. Rh4 Rgc8 {1/2-1/2 (25) Mary,P (2313)-Villaescusa Navalon,M (2306) ICCF email 2017}) 24. Rxc8 $16 Kxc8 {[%mdl 4096] Endgame KRB-KRB} 25. Rd4 Rh6 26. Rh4 ({White should play} 26. h4 $16) 26... Rxh4 $11 {The position is equal. } 27. Bxh4 {KB-KB} b5 28. Ke3 Kc7 29. Kd4 Kc6 30. Bd8 Bc4 31. Ba5 Bf1 32. g3 Be2 33. f4 Bg4 34. Bd8 h5 35. Ba5 Bf5 36. Bd8 a6 37. Ba5 Bg4 38. Bd8 Bf5 39. Ba5 Bg4 40. Bd8 Bf5 {Weighted Error Value: White=0.07/Black=0.06} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.2"] [White "Firouzja, Alireza"] [Black "Mamedyarov, Shakhriyar"] [Result "0-1"] [ECO "D02"] [WhiteElo "2759"] [BlackElo "2770"] [Annotator "TA"] [PlyCount "46"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,46,0,34,33,41,36,52,50,52,34,49,39,43,39,38,39,39,7,2,-81,-66,-61,-22, -218,-219,-224,-216,-507,-532,-500,-382,-363,-364,-645,-473,-475,-443,-1017, -972]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 4. c4 e6 5. Qb3 dxc4 6. Qxb7 {D02:1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Be4 7. Qxc7 Qxc7 8. Bxc7 {White is slightly better.} Bb4+ 9. Nbd2 {[#]} Nbd7 $146 {[%CAl Bb8d7, Bd7b6,Bb6a4,Ba4b2][%mdl 32]} ({Predecessor:} 9... Ke7 10. a3 c3 11. axb4 cxb2 12. Ra2 Rc8 13. Rxb2 Rxc7 14. Nb3 Nc6 15. b5 Nb4 {0-1 (49) Bluebaum,M (2670) -Giri,A (2764) chess24.com INT 2021}) 10. e3 Rc8 11. Bg3 Bd5 12. a3 Ba5 13. Rc1 {Threatening b3!} Ke7 14. Kd1 (14. Ke2 $11) 14... Nb6 $1 $17 15. Ne5 {[%CAl Rd2c4]} Na4 {Strongly threatening ...c3.} (15... Bxd2 $5 16. Kxd2 Ne4+ 17. Ke1 f6 $15) 16. Rc2 {[#] Now White is beyond hope.} ({Don't blunder} 16. Ndxc4 $2 Nxb2+ $1 {[%mdl 512]} 17. Kc2 Nxc4 $19) ({Avoid the trap} 16. Nexc4 $2 Bxd2 17. Kxd2 Ne4+ 18. Kc2 (18. Ke1 $2 Nxb2 19. f3 Nxg3 $19) 18... Bxc4 $19) (16. f3 $1 $11 {and White has nothing to worry.} Nxb2+ 17. Kc2) 16... Nxb2+ $1 $19 { [%mdl 576] Remove Defender, Deflection, Decoy} 17. Rxb2 c3 {[%csl Bb2,Bd2] [%mdl 64] Double Attack} 18. Rb4 (18. Rc2 cxd2 19. Bc4 Bxg2 20. Rg1) 18... cxd2 19. f3 Rc1+ 20. Kxd2 Ra1 21. Kc2 $2 (21. Be1 Rxa3 22. Kc2) 21... Bxb4 {Black is clearly winning.} 22. axb4 Rc8+ 23. Kb2 (23. Kd2 $142 Rcc1 24. e4) 23... Rcc1 {Weighted Error Value: White=0.89/Black=0.17} 0-1 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.2"] [White "Nakamura, Hikaru"] [Black "Le, Quang Liem"] [Result "1/2-1/2"] [ECO "E34"] [WhiteElo "2736"] [BlackElo "2709"] [Annotator "TA"] [PlyCount "117"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 18,117,10,5,10,10,8,10,11,4,9,11,38,39,51,54,56,15,25,32,29,27,29,31,41, 29,53,36,56,59,66,66,66,62,63,63,72,24,28,18,22,6,6,6,13,6,47,43,47,47,51,51, 51,28,51,12,12,8,10,8,24,0,0,0,0,0,25,0,0,0,39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 Qxd5 6. e3 c5 7. Bd2 Bxc3 8. Bxc3 cxd4 9. Bxd4 Nc6 10. Bc3 O-O {E34: Nimzo-Indian: Classical: 4...d5.} 11. Nf3 Rd8 12. Be2 Qe4 13. Rc1 {13.Qb3 is vanishing.} Qxc2 14. Rxc2 Ne4 15. Ne5 Bd7 16. Nxc6 $1 Bxc6 {[#]} 17. Bb4 $146 ( 17. Ba5 $5 {[%CAl Ra5d8]}) ({Predecessor:} 17. Ba5 Rdc8 18. f3 Nf6 19. Kf2 Bd5 20. Rxc8+ Rxc8 21. b3 Rc2 22. Ra1 e5 23. e4 {1/2-1/2 (54) Nakamura,H (2785) -Karjakin,S (2781) Stavanger 2017}) 17... f5 18. f3 Nf6 19. Kf2 Kf7 20. Rhc1 g5 21. Bc5 g4 22. Bd4 gxf3 23. Bxf3 Ne4+ 24. Bxe4 fxe4 25. Kg1 Rd5 26. Rf2+ Rf5 27. Rcf1 Kg6 28. Rf4 h5 29. g4 Rxf4 30. Rxf4 $11 {[%mdl 4096] Endgame KRB-KRB} Bd5 31. a3 a6 32. h3 hxg4 33. hxg4 Re8 {Threatening ...e5.} 34. Be5 Re7 35. Rf8 Rf7 36. Rg8+ Kh7 37. Rh8+ Kg6 38. Bf4 Rh7 39. Rf8 Rh4 40. Rg8+ Kf7 41. Rg5 Rh8 42. Rh5 Rxh5 43. gxh5 {KB-KB} a5 44. h6 Kg6 {The position is equal.} 45. b4 axb4 46. axb4 b5 47. Kf2 e5 48. Bxe5 Kxh6 49. Bd6 Kg5 50. Bc5 Kf5 51. Ke2 Bc4+ 52. Kd2 Bd3 53. Bd4 Bc4 54. Ke1 $1 Bd3 55. Kf2 Bc4 56. Bc5 $1 Bd3 57. Bd4 Bc4 58. Bc5 Bd3 59. Bd4 {Weighted Error Value: White=0.06/Black=0.06} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.27"] [Round "1.2"] [White "Le, Quang Liem"] [Black "Nakamura, Hikaru"] [Result "1/2-1/2"] [ECO "E36"] [WhiteElo "2709"] [BlackElo "2736"] [Annotator "TA"] [PlyCount "180"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,180,13,6,8,4,12,23,25,0,0,8,25,28,29,26,18,19,28,24,26,26,28,29,22, 34,39,34,34,30,31,28,33,37,68,68,62,66,79,62,148,147,160,147,229,218,252,215, 243,231,216,223,220,171,170,170,166,166,167,167,177,177,183,183,185,177,201, 190,205,209,177,177,211,211,211,211,211,211,211,211,225,225,211,211,211,211, 211,211,211,211,211,211,211,211,211,211,211,156,172,104,192,185,224,217,287, 261,394,385,437,391,456,449,442,433,390,318,426,385,472,471,439,370,379,379, 377,347,340,22,64,64,77,8,8,0,0,0,0,0,0,0,0,0,0,0,29983,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 d5 7. Bg5 dxc4 {E36: Nimzo-Indian: Classical: 4...d5 5 a3.} 8. Qxc4 h6 9. Bh4 b6 {White has an edge.} 10. Rd1 Ba6 11. Qa4 Qd7 12. Qc2 Qc6 13. Qxc6 Nxc6 14. Bxf6 gxf6 15. Nf3 Rfd8 16. e3 Bb7 {[#]} 17. Bd3 $146 ({ Predecessor:} 17. Rc1 Rac8 18. Bb5 Ne7 19. Ke2 c6 20. Bd3 c5 21. dxc5 Bxf3+ 22. gxf3 Rxc5 23. Rxc5 bxc5 {1/2-1/2 (43) Beliavsky,A (2651)-Yu,Y (2662) Tromsoe 2013}) 17... Ne7 18. Ke2 c5 19. dxc5 bxc5 20. Rd2 Rab8 21. Rc1 Rdc8 22. Rdc2 Bc6 23. Nd2 Kf8 24. b3 {[%CAl Bb2b3,Bb3b4][%mdl 32]} Bd5 25. Rc3 f5 ({Better is } 25... Bxg2 $14 26. f3 Rd8) 26. f3 $16 Ng6 27. b4 ({Much less strong is} 27. Rxc5 $6 Rxc5 28. Rxc5 Bxb3 $14) 27... a5 (27... Rc6 $16 28. Rxc5 Rbc8) 28. bxa5 $18 Ne5 29. Rxc5 Rd8 {Threatens to win with ...Bxf3+.} 30. Bb5 Nd7 31. Bxd7 Rxd7 32. Nc4 Bxc4+ 33. R1xc4 {[%mdl 4096] Endgame KRR-KRR} Rb2+ 34. Rc2 Rb3 35. Ra2 Ra7 36. a4 Rb1 37. Rb5 Rh1 38. h3 Rg1 39. Kf2 Rc1 40. g4 fxg4 41. hxg4 Rh1 {aiming for ...Rh2+.} 42. Kg3 Kg7 43. Rc2 Ra1 44. Rc4 Ra3 45. Kf4 Kf6 46. Ke4 Ra1 47. f4 Rd1 48. Rh5 Kg7 49. Rd4 Rg1 50. Kf3 Rf1+ 51. Kg2 Ra1 52. Rc4 Re1 53. Kf2 Ra1 54. f5 Ra6 55. Re4 (55. Ke2 $18) 55... exf5 (55... e5 $16) 56. Rxf5 Rc6 57. Ref4 Rc7 58. a6 Ra7 (58... Rc2+ $142 59. Kg3 Rg1+ 60. Kf3 Rf1+ 61. Ke4 Rxf4+ 62. Rxf4 Rc6) 59. Rf6 Ra3 60. Rb6 Ra8 61. Re4 Ra7 62. Kf3 Ra8 63. Kf4 Ra1 64. Rd4 Ra3 65. e4 Ra1 66. Ke5 Rc1 67. Kd5 Rd8+ 68. Rd6 Rdc8 {[%csl Gc1][%CAl Rc8c5]} 69. e5 $2 (69. Ke5 $18) 69... R8c5+ $1 $11 70. Ke4 Re1+ {[#]} 71. Kf4 ( 71. Kd3 $1 $16 {Black must now prevent R6d5.} Rd1+ 72. Ke4 Re1+ 73. Kd3) 71... Rcxe5 72. R6d5 (72. Rd7 {is more complex.} Ra5 73. a7 Kf6 74. Kg3 Ra1 75. Rf4+) 72... R1e4+ 73. Rxe4 Rxd5 {KR-KR} 74. Rb4 (74. Rc4 {looks sharper.} h5 75. Ke4 Ra5 76. gxh5 Rxa6 77. Kd5) 74... Ra5 75. Ke4 (75. Rb6 {with more complications. } h5 76. gxh5 Rxh5 77. Rb7 Kg6 78. a7) 75... Rxa6 76. Kd5 Kg6 77. Kc5 f5 $2 { [%mdl 8192] [#]} (77... Ra8 $11) 78. Kb5 $2 (78. Rb6+ $1 {mates} Rxb6 79. gxf5+ Kh5 80. Kxb6 Kg4 81. f6 h5 82. a5 h4 83. a6) 78... Ra8 {The position is equal.} 79. a5 fxg4 80. Rxg4+ Kf5 81. Rg7 (81. Rc4 {seems wilder.} h5 82. Kb6 Rh8 83. Rc5+ Kg4 84. a6) 81... h5 82. a6 h4 83. a7 h3 84. Kb6 {Hoping for Rg3.} Kf4 85. Kb7 Rxa7+ 86. Kxa7 h2 87. Rh7 Kg3 88. Kb6 Kg2 89. Kc5 h1=R 90. Rxh1 Kxh1 { Weighted Error Value: White=0.04/Black=0.16} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.28"] [Round "2.1"] [White "Carlsen, Magnus"] [Black "Aronian, Levon"] [Result "1-0"] [ECO "A32"] [WhiteElo "2847"] [BlackElo "2781"] [Annotator "TA"] [PlyCount "91"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,91,-1,0,6,-35,-8,-10,-15,-10,-16,-28,0,0,0,-19,0,-12,-12,-8,3,7,33, 18,36,12,18,8,12,9,8,10,9,7,15,6,50,32,42,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,29965,29968,29974,29974,29968,12846] } 1. d4 Nf6 2. c4 e6 3. Bf4 d5 4. Nc3 c5 5. Nf3 cxd4 6. Nxd4 Nbd7 {Hoping for . ..e5. A32: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6.} 7. Nf3 $5 { [%CAl Rc4d5][%mdl 4] Leaves trodden paths.} dxc4 8. e3 a6 {[#] The position is equal.} 9. a4 $146 ({Predecessor:} 9. Bxc4 b5 10. Be2 b4 11. Nb1 Nd5 12. Bg3 Be7 13. O-O O-O 14. Nbd2 Bb7 15. Rc1 {0-1 (38) Bongioanni,A (1747) -Berchtenbreiter,M (2143) Fermo 2009}) 9... Nd5 10. Bxc4 Nxf4 11. exf4 Qc7 12. Qd4 Be7 13. O-O ({Avoid the trap} 13. Qxg7 $2 Bf6 $19) 13... Bf6 14. Qe4 O-O 15. Rac1 Qb6 16. b3 Qb4 17. Qe3 Rb8 18. Ne4 b5 19. axb5 axb5 20. Bd3 Bb7 21. Rc7 Bxe4 22. Bxe4 Rfd8 23. g3 Rbc8 {[#]} 24. Bxh7+ $1 Kxh7 25. Rxc8 Rxc8 26. Qd3+ Kg8 27. Qxd7 Rd8 28. Qc7 Qxb3 29. Ne5 Rf8 30. Nd7 Ra8 31. Qb7 Rd8 32. Nxf6+ gxf6 $11 {[%mdl 4096] Endgame KQR-KQR} 33. Qe7 Rd1 34. Qxf6 Rxf1+ 35. Kxf1 {KQ-KQ} Qd3+ 36. Ke1 Qe4+ 37. Kd2 Qd5+ 38. Kc3 {Threatens to win with Qg5+.} Qc4+ 39. Kb2 Qb4+ 40. Kc2 (40. Ka1 {keeps more tension.} Qe1+ 41. Ka2 Qxf2+ 42. Kb3 Qxh2 43. Qg5+) 40... Qc5+ 41. Qc3 (41. Kb3 {is more complex.} Qxf2 42. Qg5+ Kf8 43. Qd8+ Kg7 44. Qg5+) 41... Qxf2+ 42. Qd2 Qxd2+ 43. Kxd2 { Black must now prevent Kc3.} f6 $2 {[%mdl 8192] [#]} (43... f5 $11) 44. Kc3 { White mates.} e5 45. fxe5 fxe5 46. Kb4 {Weighted Error Value: White=0.05/ Black=0.25} 1-0 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.28"] [Round "2.1"] [White "Aronian, Levon"] [Black "Carlsen, Magnus"] [Result "1-0"] [ECO "A47"] [WhiteElo "2781"] [BlackElo "2847"] [Annotator "TA"] [PlyCount "135"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,135,10,15,0,41,14,36,27,23,23,26,23,22,23,30,30,21,15,22,20,22,22,35, 18,29,19,99,93,98,89,168,145,136,137,141,118,137,122,112,100,130,120,140,148, 142,149,137,135,150,138,135,128,158,97,200,203,228,129,110,106,113,114,100,102, 100,92,109,104,114,81,113,37,65,0,118,0,110,79,121,101,103,89,92,85,95,64,71, 56,51,45,41,39,49,7,12,0,4,0,176,170,149,149,144,27,204,206,634,627,785,777, 1265,1181,1009,543,528,527,506,476,623,623,623,623,29966,828,4132,766]} 1. d4 Nf6 2. Nf3 e6 3. Bf4 b6 4. e3 Bb7 5. Bd3 Be7 6. h3 c5 7. c3 {A47:1 d4 Nf6 2 Nf3 b6: Torre, London and Colle Systems.} cxd4 8. exd4 O-O 9. O-O {White is slightly better.} d6 10. Re1 Nbd7 11. a4 $5 {[%mdl 4] An interesting side line. } a6 {[#]} 12. Bg3 $146 ({Predecessor:} 12. Na3 Re8 13. Bh2 Nf8 14. Nc4 Ng6 15. a5 b5 16. Nb6 Rb8 17. Nd2 Nd7 18. Nxd7 Qxd7 {0-1 (63) Vitiugov,N (2722) -Cordova,E (2592) chess.com INT 2020}) 12... Re8 13. Na3 Bf8 14. Nc4 Qc7 15. Nfd2 b5 16. Na3 bxa4 17. Qxa4 Bc6 18. Qc2 Qb7 (18... a5 $11) 19. Nac4 $1 $16 Qc7 20. Na5 Ra7 (20... g6 $16 {was called for.}) 21. Nxc6 Qxc6 22. b4 Rc8 23. c4 e5 24. dxe5 Nxe5 25. Bf1 Rb7 26. Qb3 Rcb8 27. b5 axb5 28. cxb5 Qb6 29. Nc4 Nxc4 30. Bxc4 Rc8 31. Ra6 Qc5 {[#]} 32. Bd3 (32. Qf3 $142 $1 {[%CAl Rf3b7]} Qb4 33. Rd1 (33. Qxb7 $2 Qxe1+ 34. Kh2 Rxc4 $19)) 32... d5 (32... Nd5 $16) 33. Bf4 $18 Ne4 34. Be3 (34. Bxe4 $18 dxe4 35. b6 (35. Rxe4 Rxb5 36. Qd3 Qf5 $11)) 34... d4 $16 35. Bf4 ({Don't play} 35. Bxe4 $6 dxe3 36. Qxe3 (36. Rxe3 Rxb5 37. Qa2 g6 $11) 36... Qxe3 $11) 35... Nc3 36. Re5 Qb4 37. Qxb4 Bxb4 38. g4 g6 39. Kg2 Rcb8 40. Re1 Rd8 41. Bg5 ({White should play} 41. Rea1 $16) 41... Rdb8 $14 42. Bf4 (42. Bd2 $14) 42... Rd8 $1 $16 43. Re5 Rdb8 $1 44. Rc6 $1 Nxb5 45. Rd5 Na7 46. Rc1 {[%mdl 1024] White has strong compensation.} Re8 47. Rb1 Rb6 48. Bc7 Rc6 49. Rd7 Re7 50. Rd8+ Kg7 51. Bf4 $36 {[%mdl 2048] White has some pressure.} Ba5 52. Ra8 (52. Rxd4 {is interesting.} Rb6 53. Rxb6 Bxb6 54. Rc4 Re8 55. Be4) 52... Rc8 53. Rbb8 Rxb8 54. Bxb8 Bb6 (54... Nc6 $11 {and Black has nothing to worry.}) 55. Bd6 $18 Rd7 56. Bf8+ Kf6 {[#]} 57. Rb8 (57. Re8 $1 $16 Nc6 58. Bb5) 57... Ba5 $2 {[#] Black cannot hold the game after this.} ( 57... Bd8 $1 $11) 58. Re8 $1 {Threatens to win with f4.} Bc7 (58... Bd2 59. h4 h6) 59. h4 {[%csl Gh4][%CAl Rg4g5]} g5 60. Bf5 Rd5 61. Be7+ Ke5 62. Bc5+ Kf6 63. hxg5+ Kxg5 64. Bxa7 d3 {Black hopes to continue with ...d2.} 65. Be3+ Kf6 { If only Black now had time for ...d2....} 66. Bd2 h5 67. Be4 (67. Bc3+ $142 Be5 68. Rxe5 {[%mdl 64] Remove Defender} Rxe5 69. f4 {[%mdl 64] Pin} hxg4 70. Bxd3 Ke7 71. fxe5 Kf8 72. Kg3) 67... Rb5 68. g5+ {Weighted Error Value: White=0.16/ Black=0.27} (68. Bxd3 $142 Rc5 69. Bb4) 1-0 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.28"] [Round "2.1"] [White "Mamedyarov, Shakhriyar"] [Black "Nakamura, Hikaru"] [Result "0-1"] [ECO "E21"] [WhiteElo "2770"] [BlackElo "2736"] [Annotator "TA"] [PlyCount "66"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,66,26,0,8,0,0,0,0,0,0,0,4,0,0,0,0,0,0,-11,-23,0,0,-35,-19,-55,0,-9,0, 0,0,-140,-122,-135,-133,-181,-167,-173,-175,-146,-108,-107,0,-342,-336,-353, -335,-315,-275,-453,-458,-447,-432,-635,-627,-631,-589,-1179,-1180]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. Bg5 c5 6. Rc1 (6. e3 h6 7. Bxf6 Qxf6 8. Rc1 cxd4 9. exd4 d5 10. cxd5 exd5 11. Be2 Bxc3+ 12. bxc3 Nc6 13. O-O b6 14. Re1 Bf5 15. Nd2 Rac8 16. Nf1 Rfd8 17. Ne3 Be6 18. Bd3 Ne7 19. g3 Rc7 20. Bb1 Rdc8 21. Qd2 h5 22. h4 g6 23. Bd3 Rd8 24. Ng2 Bf5 25. Nf4 Bxd3 26. Qxd3 {1-0 (46) Mamedyarov,S (2809)-Nakamura,H (2787) Moscow 2018}) 6... h6 {E21: Nimzo-Indian: 4 Nf3.} 7. Bh4 cxd4 8. Nxd4 d5 $1 {The position is equal. 8...d5 scores better than 8...Nc6.} 9. cxd5 g5 {Strongly threatening ...e5.} 10. Bg3 {next dxe6 is good for White.} Qxd5 11. e3 Qxa2 12. Bd3 Qxb2 13. O-O $1 {Black must now prevent Ncb5.} Bxc3 14. Rc2 Qb4 15. Nb5 e5 16. Rxc3 Nc6 17. f4 Bg4 18. Qc2 { And now fxg5 would win.} exf4 19. exf4 {[#]} Nd5 $146 {Hoping for ...Nd4.} ({ Predecessor:} 19... Rac8 20. Bc4 Qc5+ 21. Kh1 Qf5 22. Bd3 Qd7 23. fxg5 Nb4 24. Qf2 Nxd3 25. Qxf6 Qxb5 26. gxh6 {1/2-1/2 (60) Topalov,V (2747)-Ding,L (2797) Wenzhou 2018}) 20. fxg5 (20. Rb3 $1 $11 Qe7 21. fxg5) 20... Nxc3 $17 21. Nxc3 { Black should prevent Ne4.} Rad8 $1 {...Qd4+ is the strong threat.} (21... hxg5 22. Ne4 $15) 22. Kh1 {[#] aiming for Ne4.} Qd4 {[%CAl Rd4d3]} ({Weaker is} 22... hxg5 23. Ne4 $14) 23. Bh7+ Kh8 24. h3 Bh5 (24... hxg5 25. hxg4 Qxg4 26. Bh2 $17) 25. Rf6 Qe3 ({Not} 25... hxg5 $2 26. Rh6 $18) ({Black should play} 25... Bd1 $17 26. Qf5 Qxc3 27. Rxh6 {[#]} Bc2 $1 {[%mdl 512]} 28. Qxc2 Qxc2 29. Bxc2+ Kg8) 26. Bf2 $2 {[%mdl 8192]} (26. Bf4 $1 $11 {and White has nothing to worry.} Qe1+ 27. Kh2) 26... Qxg5 $19 27. Ne4 Qg7 28. Bf5 Nd4 29. Bxd4 (29. Qc4 Nxf5 30. Rxf5) 29... Rxd4 {Black is clearly winning.} 30. Qf2 Rdd8 31. Qh4 (31. Bg4 $142 Bxg4 32. Qf4) 31... Bg6 32. Nf2 Rd5 33. Ng4 Rxf5 {Weighted Error Value: White=0.50/Black=0.10} 0-1 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.28"] [Round "2.1"] [White "Nakamura, Hikaru"] [Black "Mamedyarov, Shakhriyar"] [Result "1-0"] [ECO "B11"] [WhiteElo "2736"] [BlackElo "2770"] [Annotator "TA"] [PlyCount "133"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,133,12,26,6,32,23,32,32,32,25,32,21,27,21,45,37,68,70,60,65,45,39,31, 34,71,78,80,85,97,74,82,94,132,135,150,138,204,136,150,149,181,138,131,130,138, 143,138,118,125,115,172,160,239,239,233,233,233,233,233,233,233,233,233,233, 233,0,233,233,512,503,735,720,705,353,314,0,224,224,224,224,231,231,255,255, 255,255,393,386,386,379,356,318,318,272,256,256,993,947,729,653,697,681,643, 593,519,289,595,311,319,246,1709,1709,1903,1775,29984,29985,29985,29986,29986, 29987,29987,287]} 1. e4 c6 2. Nf3 d5 3. Nc3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. g3 Nf6 {6...Nf6 is better than 6...Nd7.} 7. Bg2 Bb4 8. O-O {B11: Caro-Kann: Two Knights Variation.} Nbd7 9. exd5 $5 {[%mdl 4] Leaves trodden paths.} cxd5 {[#]} 10. Nd1 $146 {White is slightly better.} ({Predecessor:} 10. Ne2 O-O 11. c3 Bd6 12. Nd4 Ne5 {1/2-1/2 (12) Feygin,M (2482)-Khenkin,I (2633) Germany 2001}) 10... O-O 11. d4 Bd6 12. Qd3 Qc7 13. Ne3 Rfc8 14. b3 b5 15. Qxb5 Qc3 {Hoping for ... Rab8.} 16. Rb1 Qxd4 17. c4 {[%CAl Rc4d5]} Rab8 18. Qa6 Qb6 19. Qxb6 Nxb6 20. cxd5 $1 Nfxd5 21. Nxd5 exd5 22. Be3 Bc5 23. Bf4 $1 {[%CAl Rf4b8]} Ra8 24. Rfd1 Rd8 (24... a5 $16 {might work better.} 25. Rbc1 (25. Bxd5 Nxd5 26. Rxd5 f6 $16) 25... Ba3) 25. Rbc1 Bd6 26. Be3 Rab8 27. Rc6 Be5 28. Rc5 Rd7 29. Rb5 ({Weaker is} 29. Bxd5 Rbd8 $11) 29... Rbd8 30. a4 d4 31. Rxe5 dxe3 (31... f6 $16) 32. Rxd7 $18 {[%CAl Rd7d8]} exf2+ (32... Nxd7 $16 33. Rxe3 Kf8) 33. Kxf2 {[%CAl Rd7d8]} Nxd7 $16 {[%mdl 4096] Endgame KRB-KRN} 34. Ra5 g6 35. b4 Nb6 36. Rxa7 Rd2+ 37. Kg1 Rd1+ 38. Kh2 Rd2 39. Kg1 Rd1+ $1 {[#]} 40. Bf1 $1 Nd5 $2 (40... Rd4 {was worth a try.} 41. a5 Rxb4 42. axb6 Rxb6) 41. Rd7 $18 Kf8 {intending .. .Ke8.} 42. Kf2 Rd2+ 43. Ke1 Rd4 44. Kf2 $2 (44. Bg2 $18 {Threatens to win with b5.} Nxb4 45. Rxd4 Nc2+ 46. Kd2 Nxd4 47. Kd3) 44... Rxb4 (44... Rd2+ $1 $11 45. Kf3 h5) 45. Rxd5 Rxa4 $11 {KRB-KR} 46. Rd7 Kg7 47. Rc7 {aiming for Bc4.} Ra5 48. Bc4 Rf5+ 49. Ke3 Re5+ (49... h5 {is a better defense.} 50. Ke4 Kf8) 50. Kd4 Rf5 51. g4 Rf6 52. Bd5 h6 53. Ke5 Rf1 54. Rd7 Re1+ $2 (54... Kg8 55. Bc4 Rf3) 55. Kd6 $18 Rf1 56. Ke7 Rd1 57. Ke8 Kf6 58. Rxf7+ Kg5 59. Bg2 Kh4 $2 (59... h5 {is a better chance.} 60. gxh5 Re1+ 61. Re7 Rxe7+ 62. Kxe7 gxh5) 60. Rg7 Rd6 61. Kf7 Kg5 $2 (61... h5 62. gxh5 (62. Rxg6 Rxg6 63. Kxg6 hxg4 $11) 62... gxh5) 62. Be4 Rd7+ 63. Kg8 Rxg7+ 64. Kxg7 {White mates.} h5 65. Bf3 Kh4 66. Kxg6 hxg4 67. Bxg4 $2 {Weighted Error Value: White=0.33/Black=0.37} (67. hxg4 {mates} Kg3 {[#]} 68. Kf5 $1 Kxf3 69. g5 Kf2 70. g6 Kf3 71. g7 Ke2 72. g8=Q) 1-0 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.28"] [Round "2.2"] [White "Carlsen, Magnus"] [Black "Aronian, Levon"] [Result "1-0"] [ECO "B51"] [WhiteElo "2847"] [BlackElo "2781"] [Annotator "TA"] [PlyCount "73"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,73,34,32,47,95,91,92,85,121,100,150,199,180,96,66,79,87,91,88,85,146, 143,143,138,143,149,156,142,216,217,303,303,297,297,323,289,309,283,288,164, 177,176,190,165,193,190,329,329,329,329,322,322,322,288,566,531,946,812,1049, 1025,946,912,1812,1522,1505,1471]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Re1 e5 6. c3 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} g5 7. d4 g4 8. Nfd2 {[#] White is better.} exd4 $146 ({Predecessor:} 8... h5 9. Na3 Qf6 10. Nf1 cxd4 11. cxd4 exd4 12. Nc4 Nge7 13. b3 O-O-O 14. Bb2 Rg8 {1-0 (27) Smirnov,A (2456)-Nicolas Zapata,I (2160) La Roda 2015}) 9. Na3 {[%CAl Bb1a3, Ba3c4,Bc4e5][%mdl 32]} Qf6 10. cxd4 cxd4 11. e5 (11. Nac4 $18) 11... dxe5 $16 12. Nac4 {Black must now prevent Ne4.} O-O-O 13. Bxc6 Bxc6 14. Nxe5 Bd5 (14... Ne7 $142) 15. Qxg4+ Qe6 16. Qxe6+ Bxe6 17. Ndf3 Bb4 18. Rd1 {Strongly threatening Ng5.} Rd5 (18... Ne7 $16 {is a better defense.}) 19. Bf4 $18 ({ Much less strong is} 19. Rxd4 $6 Ne7 $16) 19... Bc5 20. Rac1 Kd8 {[#]} 21. Nxf7+ $1 {[%mdl 576] Clearance} Bxf7 22. Be5 {[%mdl 64] Double Attack} Ne7 { aiming for ...Rg8.} 23. Bxh8 Nc6 24. Rxc5 Rxc5 25. Nxd4 Kc7 26. Nxc6 Kxc6 { [%mdl 4096] Endgame KRB-KRB} 27. a3 Rd5 (27... h5 {was necessary.} 28. h3 Rf5 29. Rc1+ Kd7) 28. Rxd5 Kxd5 {KB-KB} 29. f3 Kc4 30. Kf2 Kd3 31. Bc3 b5 $2 {[#]} (31... Kc4 {keeps fighting.} 32. Ke3 Bg6) 32. g4 {White is clearly winning.} a6 33. Kg3 Ke3 34. f4 Ke4 35. f5 h5 36. h3 hxg4 37. hxg4 {Weighted Error Value: White=0.08/Black=0.42} 1-0 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.28"] [Round "2.2"] [White "Aronian, Levon"] [Black "Carlsen, Magnus"] [Result "0-1"] [ECO "D02"] [WhiteElo "2781"] [BlackElo "2847"] [Annotator "TA"] [PlyCount "104"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,104,-12,0,0,-2,0,0,0,0,0,-14,-9,-23,-13,-10,-8,-39,-19,-49,-44,-60, -50,-48,-43,-77,-69,-69,-69,-97,-91,-93,-90,-93,-56,-61,-47,-40,-26,-18,-32, -86,-76,-66,-40,-209,-202,-193,-197,-206,-122,-147,0,-187,-177,-250,-231,-239, -226,-239,-241,-218,0,-225,-225,-183,-184,-232,-225,-217,-208,-368,-362,-448, -431,-506,-490,-456,-272,-260,-247,-535,-552,-706,-691,-722,-722,-722,-722, -722,-715,-700,-699,-29982,-29983]} 1. d4 Nf6 2. Nf3 d5 3. Bf4 e6 4. e3 Bd6 5. Nbd2 b6 6. Bg3 O-O 7. Bd3 Ba6 {D02:1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 8. Rc1 {[#]} Bxd3 $146 ({Predecessor:} 8... c5 9. dxc5 bxc5 10. c4 Bb7 11. Qb3 Bc6 12. Ne5 dxc4 13. Qxc4 Bxg2 14. Rg1 Bd5 15. Qh4 { 1-0 (32) Kostelidou,D (1293)-Koutsouraki,A (1540) Patras 2019}) 9. cxd3 c5 { The position is equal.} 10. Qa4 Be7 11. O-O Qd7 12. Qxd7 Nbxd7 13. Rc2 a5 14. a4 Nb8 15. Ra1 Nc6 16. Kf1 Rfc8 17. Ke2 Nd7 18. Nb3 h5 19. h4 f6 20. dxc5 bxc5 21. d4 {[%CAl Rd4c5]} Nb4 22. Rc3 Kf7 23. dxc5 e5 24. Nfd2 Ke6 {[%CAl Rd7c5]} 25. f4 (25. Rac1 $2 Na2 $19) 25... Nc6 (25... Bxc5 26. fxe5 fxe5 27. Rac1 $16) 26. fxe5 (26. Nf3 $15) 26... fxe5 $17 27. Nf3 Rcb8 28. Rb1 $2 {[#]} (28. Rd3 $15) 28... Rb4 $1 $19 29. Nbd2 Rxa4 30. e4 d4 (30... Nxc5 31. exd5+ Kxd5 32. Rd1 $17) (30... dxe4 $19 31. Ng5+ Bxg5 32. hxg5 Nd4+ 33. Ke1 Rc8) 31. Rc4 Ra2 ( 31... Nxc5 32. Rxa4 Nxa4 33. Rc1 $17) ({Black should play} 31... Rxc4 $17 32. Nxc4 Rb8) 32. b3 $2 (32. Nb3 $11 {and White stays safe.} Rb8 33. Nfxd4+ exd4 34. Bxb8 Ndxb8 35. Nc1 d3+ 36. Kf2 (36. Nxd3 Nd7 $11)) 32... Rb8 ({Weaker is} 32... Nxc5 33. Rbc1 $11) 33. Kd1 (33. Kf1 {is a better defense.}) 33... Rb5 ({ Resist} 33... Bxc5 34. Rbc1 $17) (33... Nxc5 34. Rbc1) 34. Rbc1 Rxc5 35. R1c2 Ra1+ 36. Rc1 Ra2 37. R1c2 Ra3 38. Ng5+ Kf6 39. Ngf3 Rxc4 40. Rxc4 Nc5 41. Kc2 $2 (41. Bh2) 41... Ra1 42. Kb2 Rh1 43. b4 {[#]} Nd3+ {[%mdl 64] Double Attack} 44. Kb3 Ndxb4 (44... Ncxb4 $142 {White must now prevent ...Ra1.} 45. Rc7 Ra1 46. Bxe5+ Nxe5 47. Nxe5 Ra2 48. Rxe7 Kxe7) 45. Ka4 Ke6 46. Kb5 $2 (46. Nb3) 46... a4 {[%CAl Ba5a4,Ba4a3,Ba3a2][%mdl 32]} 47. Rxc6+ Nxc6 48. Kxc6 Rc1+ 49. Kb5 a3 50. Bxe5 Rc5+ {[%mdl 64] Double Attack} 51. Ka4 Rxe5 52. Nxe5 {And now Nd3 would win.} a2 {Weighted Error Value: White=0.49/Black=0.18} 0-1 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.28"] [Round "2.2"] [White "Mamedyarov, Shakhriyar"] [Black "Nakamura, Hikaru"] [Result "0-1"] [ECO "A07"] [WhiteElo "2770"] [BlackElo "2736"] [Annotator "TA"] [PlyCount "108"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,108,9,0,31,22,42,-3,35,22,44,10,14,0,25,12,45,-7,50,39,31,5,14,-9,-7, -20,-20,-72,-71,-77,-66,-74,-58,-59,-55,-148,-158,-156,-143,-157,-152,-170, -133,-149,-141,-145,-122,-123,-127,-230,-210,-225,-113,-113,-107,-107,-112, -154,-79,-145,-139,-145,-134,-198,-216,-236,-146,-144,-122,-129,0,-91,-87,-136, -116,-420,-418,-398,-384,-431,-445,-405,-363,-454,-412,-439,-363,-736,-721, -29989,-1803,-4814,-4574,-29987,-1018]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. d3 O-O 6. Nbd2 Nc6 7. e4 dxe4 8. dxe4 e5 9. c3 Be6 {A07: Réti Opening: New York and Capablanca Systems.} 10. Qe2 a5 $5 {[%mdl 4] [#] Leaves trodden paths.} 11. Rd1 $146 ({Predecessor:} 11. Nc4 Nd7 12. Rd1 Qc8 13. Ne3 f6 14. Nd5 Bd6 15. Be3 Ne7 16. Nd2 c6 17. Nxe7+ Bxe7 {1/2-1/2 (48) Skripchenko,A (2408) -Zawadzka,J (2423) Wroclaw 2018}) 11... Qc8 {The position is equal.} 12. Nc4 { [%CAl Bd2c4,Bc4e3,Be3d5][%mdl 32]} Bg4 13. Ne3 Bc5 ({Much worse is} 13... Nxe4 $6 14. Nxg4 Qxg4 15. h3 $16) 14. Nd5 Ne8 15. Be3 Bd6 16. Qc4 ({White should play} 16. Qf1 $14) 16... Kh8 (16... Ne7 $1 $11) 17. Rd2 f6 18. Nh4 Ne7 19. Nxe7 Bxe7 20. Qf1 Nd6 21. h3 (21. c4 $11 {keeps the balance.}) 21... Be6 $17 22. b3 a4 23. Rb1 axb3 24. axb3 g5 25. Nf3 (25. Nf5 $1 $15 Nxf5 26. exf5 Bxf5 27. Rbd1 ) 25... Nxe4 {[%mdl 64] Double Attack} 26. Rc2 Nd6 27. Rcc1 Nf5 $36 {[%mdl 2048] White is under strong pressure.} 28. Bd2 Rd8 29. Re1 Bc5 {aiming for ... Nxg3.} 30. Kh2 Ra2 31. Re2 Ra6 32. Nxg5 (32. c4 $17) 32... fxg5 $19 33. Bxg5 Be7 (33... Rf8 $1 $19 {Hoping for ...Nxg3!} 34. Qc1 Ng7) 34. Bxe7 $17 Nxe7 35. Rxe5 Ng6 36. Rb5 Rb6 (36... Ra2 $142 37. Ra1 Rb2) 37. Rh5 ({White should try} 37. Rxb6 cxb6 38. c4) 37... Bg8 ({Don't play} 37... Rxb3 38. Be4 $15) 38. c4 Qe6 39. Re1 (39. Rd5 $17 {might work better.} Rxd5 40. cxd5) 39... Qf6 $19 40. Re3 Rbd6 41. Be4 Re6 42. Qe2 Red6 (42... Rde8 $17 43. Qc2 Bf7) 43. Rf5 (43. Qf1 $1 $11 {was the only way to keep the balance.}) 43... Qg7 $17 44. Qf3 c6 45. h4 $2 {[%mdl 8192] Loses the game.} (45. Qh5 $17) 45... Ne5 $19 46. Rxe5 Qxe5 47. Bxh7 Qf6 {...Qxf3 is the strong threat.} 48. Bf5 Bf7 49. Re4 Rd4 50. Re3 Rf8 { Threatens to win with ...Bg6.} 51. h5 (51. Re6 Rd3 52. Qxd3 Bxe6 53. Bxe6 Qxe6 54. Kg2) 51... Bxc4 52. g4 {[#]} Be6 $1 {[%mdl 512]} 53. Qg3 (53. Bxe6 Qxf3) 53... Bxf5 54. gxf5 Qh4+ {Weighted Error Value: White=0.78/Black=0.40} (54... Rg8 $142 55. Qh3 Rh4 56. Rg3 Rxh3+ 57. Kxh3 Qxf5+ {[%mdl 64] Double Attack} 58. Kg2 Re8 59. h6 Qd5+ 60. Kh2 Re2 61. Rg2 Rb2 62. Rg4 Rxf2+ 63. Kg3 Qg2+ 64. Kh4 Qh2+ 65. Kg5 Qe5+ 66. Kh4 Rh2#) 0-1 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.04.28"] [Round "2.2"] [White "Nakamura, Hikaru"] [Black "Mamedyarov, Shakhriyar"] [Result "1/2-1/2"] [ECO "C80"] [WhiteElo "2736"] [BlackElo "2770"] [Annotator "TA"] [PlyCount "82"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,82,6,8,0,0,3,5,0,0,0,0,0,17,0,0,0,1,5,0,-2,0,-10,0,-11,-4,-19,-12, -20,0,-11,-11,-16,-10,-16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,4,8,8,8,8,8,8,8,8, 8,8,8,0,0,-8,-8]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. Nxe5 (8. dxe5 Be6 9. Nbd2 Nc5 10. c3 d4 11. Bxe6 Nxe6 12. cxd4 Ncxd4 13. a4 Bb4 14. axb5 Nxb5 15. Qa4 Bxd2 16. Bxd2 O-O 17. Rfd1 c5 18. Be3 Qb6 19. Rac1 a5 20. Qc4 Rac8 21. Ng5 Nxg5 22. Bxg5 {1-0 (44) Nakamura,H (2736) -Mamedyarov,S (2770) chess24.com INT 2021}) 8... Nxe5 9. dxe5 c6 $1 {The position is equal. The main line 9...c6 scores better than 9...Be6.} 10. Nd2 { C80: Open Ruy Lopez: Sidelines and 9 Nbd2.} Nxd2 11. Qxd2 Be7 {[#]} 12. Qf4 $146 ({Predecessor:} 12. Qd3 O-O 13. Be3 Bg4 14. h3 Be6 15. c3 f6 16. Bc2 f5 17. f4 a5 18. Rfd1 {0-1 (31) Bruinsma,M (1733)-Kis Kos,L (1686) LSS email 2009} ) 12... O-O 13. a4 Be6 14. c3 f6 15. Be3 Qc7 16. exf6 Qxf4 17. Bxf4 {[#] Hoping for axb5.} Bxf6 18. Be3 Kf7 19. Bc2 g6 20. axb5 axb5 21. f3 Rfe8 22. Kf2 Red8 23. Rfd1 b4 24. Bd4 bxc3 (24... Bh4+ {keeps more tension.} 25. g3 Be7 26. Be5 Re8 27. h4 bxc3 28. bxc3 Bd7) 25. bxc3 Bxd4+ 26. cxd4 Ke7 27. Ke3 Kd6 28. h4 Rdb8 29. g4 c5 30. Rdb1 cxd4+ 31. Kxd4 Rxb1 32. Rxb1 $11 {[%mdl 4096] Endgame KRB-KRB} Bd7 33. h5 gxh5 34. gxh5 Rf8 35. Bxh7 Rxf3 36. Rh1 Rh3 37. Rxh3 Bxh3 38. h6 Ke6 39. Be4 {[#] White wants to mate with h7.} Kf6 40. Bxd5 Kg6 41. h7 Kxh7 {An uneventful encounter. Weighted Error Value: White=0.04/ Black=0.03} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.05.01"] [Round "3.1"] [White "Carlsen, Magnus"] [Black "Nakamura, Hikaru"] [Result "1-0"] [ECO "C54"] [WhiteElo "2847"] [BlackElo "2736"] [Annotator "TA"] [PlyCount "180"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,180,58,25,9,45,34,31,38,54,40,40,40,41,37,29,35,33,29,28,29,37,34,47, 41,55,45,58,30,60,20,32,37,120,129,116,113,137,117,115,58,76,21,0,0,17,10,45,0, 0,0,0,0,51,0,0,0,0,-33,-8,-36,-25,-175,-133,-131,-8,0,-4,-33,0,-24,0,-16,0,0,0, 0,0,0,0,0,481,385,495,8,0,0,527,520,454,500,497,478,518,539,522,521,549,487, 428,221,218,189,191,197,204,175,729,734,661,585,1050,970,2213,2213,2213,2206, 2206,2206,2198,2198,2191,2191,2177,2177,9074,10155,10084,8274,2177,2169,2169, 2131,2116,2116,2102,2065,2065,2065,2065,1975,1939,1950,1929,1682,1550,1462, 29960,12850,1829,1726,29973,29974,29972,29974,29971,29974,29976,29977,29974, 1700,1635,1657,1598,1598,29987,29986,29987,29986,29989]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 O-O 6. O-O (6. b4 Be7 7. Nbd2 d5 8. Bb3 a6 9. Qc2 h6 10. O-O Be6 11. Re1 Re8 12. Bb2 Bf8 13. a4 b5 14. h3 dxe4 15. dxe4 Qd7 16. Bxe6 Qxe6 17. axb5 axb5 18. Rxa8 Rxa8 {1/2-1/2 (57) Carlsen,M (2847)-Nakamura,H (2736) chess24.com INT 2021}) 6... d5 7. exd5 Nxd5 8. a4 {[%CAl Ba2a4,Ba4a5] [%mdl 32] C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Bg4 9. h3 Bh5 10. a5 {[#] Hoping for b4.White is slightly better.} Nf6 $146 ({ Predecessor:} 10... a6 11. Nbd2 b5 12. axb6 Nxb6 13. Bb3 a5 14. Ne4 Be7 15. Re1 Bg6 16. Be3 Kh8 17. Bxb6 cxb6 {1-0 (29) Ding,L (2805)-Plenca,J (2463) Chess. com INT 2020}) 11. b4 Bd6 12. Nbd2 a6 13. Ne4 Nxe4 14. dxe4 Kh8 15. Qd3 Qe7 16. Re1 Nd8 17. g3 Ne6 18. Nh4 Rad8 19. Nf5 Qf6 20. g4 {Qg3 is the strong threat.} Bg6 $1 (20... Bxb4 $2 21. Qg3 $18) 21. Qf3 h6 22. Kg2 Nf4+ (22... Rfe8 $14) 23. Bxf4 $16 exf4 24. Nxd6 cxd6 25. Bd5 Rd7 {[#]} 26. Rad1 ({White should try} 26. Bxb7 $1 $16 {[%mdl 512]} Rxb7 27. e5 {[%mdl 64] Discovered Attack} dxe5 28. Qxb7) 26... Re8 27. Bxb7 Rxb7 $11 28. e5 $1 {[%CAl Re5f6]} Qe7 29. exd6 Qd7 30. Rxe8+ Qxe8 31. Rd4 Rd7 {Threatens to win with ...Rxd6!} 32. Qxf4 Qb8 ({Better is} 32... Rd8 $11) 33. Kg3 (33. Qd2 $14) 33... f6 34. h4 Kg8 35. Kg2 Bf7 36. Kg3 Be6 37. g5 (37. Qd2 $11 {and White has nothing to worry.}) 37... hxg5 $19 38. hxg5 fxg5 (38... Qb5 $1 $17 {Strongly threatening ...Qf1.} 39. Kh2 fxg5) 39. Qe5 $11 Bf7 40. f3 Kf8 41. Kf2 Kg8 42. Kg3 Kf8 43. Qxg5 Rxd6 44. Qc5 Ke7 45. Qe5+ Kd7 46. Kf2 Qf8 $2 {[%mdl 8192]} (46... g6 $11 {and Black stays safe.} ) 47. Qf5+ $18 Kc6 48. Qc5+ ({White has to play} 48. Rxd6+ $1 $18 Qxd6 49. Qxf7 ) 48... Kd7 $1 $11 49. Qf5+ $2 {[%mdl 8192]} (49. b5 $11 Qb8 50. bxa6 Rxd4 51. Qxd4+ Kc6 52. Kg2) 49... Kc6 $1 $18 {[#] With the idea ...Rxd4.} 50. Rxd6+ Qxd6 51. Qxf7 {[%mdl 4096] Endgame KQ-KQ} Qd2+ 52. Kg3 Qxc3 53. Qe8+ Kc7 54. Qe4 Kd6 55. Kg4 Qa1 56. Qd3+ (56. Qf4+ $142 Kd5 57. Qf7+ Kd6 58. Qf8+ Ke6 59. Qc8+ Ke5 60. Qf5+ (60. Qxa6 Qg1+ 61. Kh5 Qh1+ 62. Kg5 Qg1+ 63. Kh4 Qe1+ 64. Kh3 Qh1+ { [%mdl 64] Double Attack} 65. Kg4 Qg1+ 66. Kh5 Qh2+ 67. Kg5 Qf4+ 68. Kh5 Qh2+ 69. Kg5 Qf4+ 70. Kh5 Qh2+ $11) 60... Kd6 61. Qc5+ Ke6 62. Qc6+ Kf7 63. Qb7+ ( 63. Qxa6 Qg1+ 64. Kf5 g6+ 65. Ke4 Qe1+ 66. Kd5 Qxb4 $18) 63... Ke8 64. Qb8+ Kd7 65. Qb7+ Kd8 66. Qxa6 Qd4+ 67. Kf5 Qd5+ 68. Kg6) 56... Ke7 57. Qe3+ Kf7 58. Qc5 ({Much less strong is} 58. Qa7+ Kf8 $18) 58... Kg8 59. Kf4 Qd1 $2 (59... Kh7 60. Qh5+ Kg8 61. Qd5+ Kh7 62. Qh5+ Kg8 63. Qd5+ Kh7 64. Qh5+) 60. Ke5 {aiming for Qd5+.} Kh7 61. Qd5 Qa4 62. Qe4+ Kh8 63. Kd6 Qb5 64. Kc7 Kg8 65. Qe6+ Kh7 66. Qd6 Qe2 67. f4 Qb5 68. Qc5 Qf1 69. Qh5+ Kg8 70. Qd5+ Kh7 71. Qe4+ Kh8 72. Kb6 Qb5+ {[#]} 73. Ka7 $1 Qf1 74. Qe8+ Kh7 75. Qh5+ Kg8 76. Qd5+ Kh7 77. f5 Qb1 78. Qd6 Qxf5 79. Kxa6 g5 80. b5 Qf1 81. Kb6 Qf2+ 82. Qc5 Qf6+ 83. Ka7 Qf7+ 84. Ka6 g4 85. b6 ({Weaker is} 85. Qa7 Qxa7+ 86. Kxa7 g3 $11) 85... g3 86. b7 (86. Qc7 $142 Qxc7 87. bxc7 g2 88. c8=Q g1=Q 89. Qb7+ Kh8 90. Qa8+ Kh7 91. Qa7+ Qg7 92. Qxg7+ Kxg7 93. Kb5) 86... Qf1+ 87. Ka7 {Intending Qc7+ and mate.} Qf2 88. Qb6 Qf7 89. Qb1+ Kh6 90. Qe4 Qg7 {What a bad dream for Black. Weighted Error Value: White=0.32/Black=0.27} 1-0 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.05.01"] [Round "3.1"] [White "Aronian, Levon"] [Black "Mamedyarov, Shakhriyar"] [Result "0-1"] [ECO "B45"] [WhiteElo "2781"] [BlackElo "2770"] [Annotator "TA"] [PlyCount "42"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,42,30,34,47,16,7,14,21,13,20,-76,-64,-72,-83,-173,-167,-421,-430, -403,-443,-846,-870,-850,-863,-855,-860,-846,-845]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 $1 Rb8 { B45: Sicilian Four Knights.} 10. a3 Qb6 11. Qf3 {[#]} Be7 $146 {The position is equal.} ({Predecessor:} 11... Ba6 12. c4 f5 13. exf6 Nxf6 14. Nxf6+ gxf6 15. Qh5+ Kd8 16. c5 Bxc5 17. Bxa6 Qa5+ {0-1 (27) Kordis,K (2133)-Stamatiou,R (2001) Petroupoli 2019}) 12. c4 f5 13. Nd2 (13. Nd6+ $11 Bxd6 14. exd6) 13... Ne3 $17 {...Nc2+ is the strong threat.} 14. Bd3 g5 {Hoping for ...gxf4.} 15. g3 {[#]} ( 15. Nf1 $17 Nxf1 16. fxg5) 15... gxf4 $1 $19 16. gxf4 $2 (16. Ke2 Bb7 17. Qxf4) 16... Rg8 {aiming for ...Bh4+.} 17. Nf1 ({Much worse is} 17. Qh5+ Kd8) 17... Ng2+ 18. Ke2 (18. Kd1 $142 Qb3+ 19. Ke2) 18... Qd4 19. Ng3 Rxb2+ 20. Bxb2 Qxb2+ {[%mdl 64] [#] Double Attack} 21. Kf1 Nh4 {Black took control after the opening. Weighted Error Value: White=0.60/Black=0.01} 0-1 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.05.01"] [Round "3.1"] [White "Mamedyarov, Shakhriyar"] [Black "Aronian, Levon"] [Result "0-1"] [ECO "D39"] [WhiteElo "2770"] [BlackElo "2781"] [Annotator "TA"] [PlyCount "48"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 18,48,0,0,0,0,0,0,0,0,0,0,72,62,59,75,75,0,24,0,0,0,0,-215,-201,-285, -230,-226,-208,-719,-729,-1030,-1014]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 6. e4 c5 7. Bxc4 cxd4 8. Nxd4 Qa5 9. Bxf6 Bxc3+ 10. bxc3 Qxc3+ { [%mdl 64] Double Attack. D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} 11. Kf1 gxf6 (11... Qxc4+ 12. Kg1 $14) 12. Rc1 Qa5 {[#] The position is equal.} 13. Qf3 $146 ({Predecessor:} 13. h4 Ke7 14. Rh3 Nc6 15. Rd3 Rd8 16. Nb3 Rxd3 17. Qxd3 Qd8 18. Qc3 Qd6 19. Bb5 Bd7 20. Nc5 Rc8 21. Nxb7 { 0-1 (40) Martirosyan,H (2622)-Nihal,S (2620) chess.com INT 2020}) 13... Ke7 14. a4 {And now Qa3+ would win.} Qxa4 {[#]} (14... Qb4 $11 {keeps the balance.}) 15. e5 $1 $16 fxe5 {[#]} 16. Qh5 $1 {[%CAl Rh5g5]} Nc6 {[#]} 17. Qg5+ $40 { [%mdl 128] White mounts an attack.} (17. Nf5+ $1 $16 exf5 18. Qxf7+ Kd8 19. Qf6+ {[%mdl 64] Double Attack} Kc7 20. Qxh8) 17... Kf8 18. Nf5 {Black must now prevent Qg7+.} Rg8 ({Don't play} 18... exf5 $6 19. Qf6 $16) 19. Qh6+ {[%mdl 64] Double Attack} Ke8 20. Qf6 Qb4 $19 21. h4 (21. Ng7+ $142 Kf8 22. Nxe6+ Bxe6 23. Bxe6) 21... Rg6 22. Qh8+ Qf8 23. Qxh7 (23. Nd6+ Ke7 24. Qxf8+ Kxf8 25. Ba6 bxa6 26. Rxc6) 23... exf5 24. h5 Rh6 {Weighted Error Value: White=0.84/Black=0.16} 0-1 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.05.01"] [Round "3.1"] [White "Nakamura, Hikaru"] [Black "Carlsen, Magnus"] [Result "0-1"] [ECO "D11"] [WhiteElo "2736"] [BlackElo "2847"] [Annotator "TA"] [PlyCount "74"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,74,28,22,22,8,0,-4,6,-11,-11,-12,0,-8,-24,-13,0,0,0,-14,0,0,0,-26,3, -19,34,0,29,0,25,20,51,9,97,99,101,100,103,28,100,4,22,0,0,0,0,0,0,0,0,-185,0, 0,0,-69,-5,-5,-6,-422,-394]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 5. h3 Bxf3 6. Qxf3 e6 7. Bd3 Nbd7 8. O-O Bd6 9. Nc3 O-O {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4.} 10. Rd1 {10.Rd1 was played by the boomers.} Re8 11. Qe2 Qe7 {The position is equal.} 12. Bd2 dxc4 13. Bxc4 e5 14. dxe5 Qxe5 {( -> ...Qh2+)} 15. g3 $1 b5 16. Bb3 {[#]} a5 $146 ({Predecessor:} 16... Nc5 17. Bc2 b4 18. Na4 Nce4 19. Be1 Qe6 20. Kg2 Ng5 21. g4 Qe5 22. Rxd6 Qxd6 23. Rd1 Qe7 24. Qc4 Nd5 25. Bb3 Qf6 {0-1 (25) Franco Ocampos,Z (2525)-Felgaer,R (2581) Olite 2006}) 17. Bc2 Qe6 18. Kg2 a4 19. a3 Ne5 20. Bb1 Qe7 (20... Bc7 $11) 21. Be1 Rad8 22. Ba2 Ned7 23. Qc2 Be5 24. Rac1 (24. Nxb5 $5 cxb5 25. Bb4 $14) 24... Nc5 (24... Rb8 $11 {remains equal.}) 25. Ne2 $1 $16 {aiming for Rxd8.} Rxd1 26. Rxd1 {Black must now prevent Bb4.} Qa7 27. Rc1 (27. Bb4 $16 Na6 28. Qxc6) 27... Ne6 (27... Ncd7 $1 $11) 28. f3 (28. Bc3 $16 Nd8 29. Bxe5 Rxe5 30. Nd4) 28... Nd5 $11 (28... Qxe3 $6 29. Bf2 $16) 29. Qxc6 Nxe3+ 30. Kh1 Qb8 31. Bf2 Bxb2 32. Bxe3 {Strongly threatening Rb1.} Bxc1 33. Bxc1 {[#]} ({ Much weaker is} 33. Nxc1 Qc8 $17) (33. Qxc1 $11 Qe5 34. Ng1) 33... Rc8 $2 ( 33... Qc8 $1 $19 {[%CAl Rc8c6]} 34. Bd5 {[#]} (34. Qxb5 $2 Nd4 $19 {[%mdl 64] Discovered Attack, Back Rank}) 34... Nd4 $1 {[%mdl 64] Discovered Attack} 35. Qxc8 (35. Nxd4 $2 {is a self mate.} Qxh3+ {[%mdl 64] Double Attack} 36. Kg1 Qxg3+ 37. Kh1 Re1#) 35... Rxc8 36. Nxd4 Rxc1+ 37. Kg2 b4 38. axb4 Rd1) 34. Qe4 Qd6 {And now ...Qd1+ would win.} 35. Be3 ({White should try} 35. Bb2 $11) 35... Qd1+ ({Better is} 35... Re8 $1 $15 36. Bb1 g6) 36. Ng1 Qc2 37. Qd5 {[%mdl 8192] } (37. Bxe6 $11 {and White has nothing to worry.} Qxe4 38. fxe4 fxe6 39. Bd2) 37... Rd8 {Weighted Error Value: White=0.51/Black=0.26} 0-1 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.05.01"] [Round "3.2"] [White "Carlsen, Magnus"] [Black "Nakamura, Hikaru"] [Result "1/2-1/2"] [ECO "C54"] [WhiteElo "2847"] [BlackElo "2736"] [Annotator "TA"] [PlyCount "47"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,47,11,37,27,33,9,7,4,10,4,8,4,4,4,4,9,17,8,21,0,0,-10,0,0,0,-67,0,0, 0,-56,0,0,0,-62]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 O-O 6. O-O d5 7. exd5 Nxd5 8. Re1 Bg4 9. h3 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Bh5 10. b4 Be7 11. b5 Na5 12. Rxe5 Nf6 13. Nbd2 {[%CAl Bb1d2, Bd2e4,Be4c3][%mdl 32]} Bd6 14. Re1 Re8 15. Bb3 Qd7 {[#]} 16. Rxe8+ $146 ({ Predecessor:} 16. c4 Rxe1+ 17. Qxe1 Bb4 18. Qe3 Re8 19. Ne5 Qd8 20. Bb2 Nd7 21. Qg3 Nxe5 22. Bxe5 {1/2-1/2 (33) Ljubicic,L (2591)-Zidu,J (2595) ICCF email 2016 }) 16... Rxe8 17. Bc2 Nd5 18. Ne4 {[#]} Nxc3 $1 19. Nxc3 {And now Ne4 would win.} Bxf3 20. Qd2 {[#]} (20. gxf3 $11 Qxh3 21. f4) 20... Qe6 21. Qe3 $11 { Strongly threatening Qxe6.} Qd7 22. Qd2 $1 $15 Qe6 {( -> ...Qe1+)} 23. Qe3 { Black must now prevent Qxe6.} Qd7 24. Qd2 $1 {Weighted Error Value: White=0.10/ Black=0.07} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.05.01"] [Round "3.2"] [White "Aronian, Levon"] [Black "Mamedyarov, Shakhriyar"] [Result "0-1"] [ECO "C77"] [WhiteElo "2781"] [BlackElo "2770"] [Annotator "TA"] [PlyCount "108"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,108,25,14,14,12,23,16,24,19,28,4,4,-6,12,11,26,23,17,-2,-14,0,-14, -10,0,-4,2,-6,0,-34,-27,-27,-16,-88,-53,-76,-23,-190,-184,-268,-263,-309,-288, -273,-286,-457,-445,-598,-601,-552,-526,-1653,-1554,-29965,-29961,-6515,-2589, -2649,-2438,-1922,-2279,-1805,-1839,-1981,-1812,-1805,-1756,-1231,-1257,-2260, -2493,-2202,-2106,-1764,-868,-7108,-8038,-29961,-29965,-29964,-29963,-29966, -29964,-29967,-29968,-29970,-29972,-29965,-29969,-29976,-29977,-29976,-29978, -29978,-29979,-29979,-29980,-29982,-29982]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Bc5 7. Bg5 {7.Nc3 is setting a new trend.} h6 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 8. Bh4 Be7 $5 {[%mdl 4] A promising side line.} 9. a4 {And now axb5 would win.} Rb8 {[#] The position is equal.} 10. O-O $146 ({Predecessor:} 10. axb5 axb5 11. Nc3 d6 12. Bxf6 Bxf6 13. Nd5 O-O 14. O-O g6 15. Nxf6+ Qxf6 16. h3 {1-0 (39) Predke,A (2606)-Dragnev,V (2509) Riga 2018}) 10... d6 11. Nbd2 O-O 12. c3 Na5 13. Ba2 c5 14. Re1 Qc7 15. b4 cxb4 16. cxb4 Nc6 17. Rc1 Qd7 18. Rb1 Nh5 19. Bxe7 Qxe7 20. Nf1 Nf4 21. Ne3 Qf6 22. h4 (22. g3 $11 {remains equal.}) 22... bxa4 {Threatens to win with ... Qg6.} 23. g3 Be6 24. Bxe6 $2 {Now White is beyond hope.} (24. Bc4 $1 $11) 24... fxe6 $19 ({Worse is} 24... Nxe6 25. Nd5 $11) 25. gxf4 (25. Rf1 $142) 25... Qxf4 26. Nh2 Qxf2+ 27. Kh1 Rxb4 28. Neg4 (28. Rxb4 $142 Nxb4 29. Ng2) 28... Qxh4 29. Rg1 Rxb1 30. Qxb1 Nd4 31. Qb7 {intending Nxe5!} Ne2 32. Ra1 h5 33. Qd7 hxg4 ( 33... Rf4 $142 34. Qxe6+ Kh7) 34. Qxe6+ Kh8 {( -> ...g3)} 35. Qxg4 Qxg4 36. Nxg4 {[#]} Rf1+ $3 {[%mdl 576] Decoy} 37. Rxf1 {[%mdl 4096] Endgame} Ng3+ { [%mdl 64] Double Attack} 38. Kg2 Nxf1 39. Kxf1 {KN-KP} a3 {[%CAl Ba4a3,Ba3a2] [%mdl 32] aiming for ...a2.} 40. Ne3 a2 41. Nc2 Kg8 42. Ke2 Kf7 43. Kd2 Kf6 44. Kc3 Kg5 {Black mates.} 45. Kb2 Kf4 46. Kxa2 g5 47. Kb3 g4 48. Kc4 g3 49. Ne1 Ke3 50. Ng2+ Kf2 51. Nh4 g2 52. Nxg2 Kxg2 53. Kd5 {[#]} a5 $1 {[%CAl Ba6a5, Ba5a4][%mdl 32]} 54. Kxd6 a4 {Weighted Error Value: White=0.68/Black=0.19} 0-1 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.05.01"] [Round "3.2"] [White "Mamedyarov, Shakhriyar"] [Black "Aronian, Levon"] [Result "1/2-1/2"] [ECO "D39"] [WhiteElo "2770"] [BlackElo "2781"] [Annotator "TA"] [PlyCount "49"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 25,49,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 6. e4 c5 7. Bxc4 cxd4 8. Nxd4 Qa5 9. Bxf6 Bxc3+ 10. bxc3 Qxc3+ 11. Kf1 gxf6 12. Rc1 Qa5 13. Bb5+ {is the new trend.} Ke7 {The position is equal.} 14. e5 {D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} fxe5 15. Qh5 $1 {[%CAl Rh5e5]} Nd7 ({Not} 15... exd4 $2 16. Qg5+ f6 17. Qc5+ Kf7 {[#]} 18. Be8+ $1 {[%mdl 512]} Kxe8 19. Qxa5 $18) 16. Qg5+ Kf8 $1 17. Rxc8+ Rxc8 18. Bxd7 {White wants to mate with Nxe6+!} Qd8 $1 {[%CAl Rd8g5]} ({Worse is} 18... h6 19. Nxe6+ fxe6 20. Qf6+ Kg8 21. Bxe6+ Kh7 22. Qf7#) 19. Nxe6+ fxe6 20. Qh6+ {[%mdl 64] [#] Double Attack} Ke7 21. Qxe6+ {[%mdl 64] Double Attack} Kf8 {aiming for ...Rc1+.} 22. Qh6+ Ke7 23. Qe6+ {[%mdl 64] Double Attack} Kf8 {[#] ...Rc1+ is the strong threat.} 24. Qh6+ $146 ({Predecessor:} 24. Qf5+) 24... Ke7 25. Qe6+ {[%mdl 64] Double Attack. An uneventful encounter. Weighted Error Value: White=0.00/Black=0.00} 1/2-1/2 [Event "New In Chess Classic KO 2021"] [Site "Chess24"] [Date "2021.05.01"] [Round "3.2"] [White "Nakamura, Hikaru"] [Black "Carlsen, Magnus"] [Result "0-1"] [ECO "D31"] [WhiteElo "2736"] [BlackElo "2847"] [Annotator "TA"] [PlyCount "77"] [EventDate "2021.04.27"] [EventType "k.o."] [EventCountry "NET"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,77,20,19,19,19,19,19,15,33,22,48,39,43,22,31,18,25,21,15,14,21,23,23, 27,25,12,0,0,6,0,0,-3,-6,-14,-3,-77,-77,-77,-77,-111,-150,-146,-148,-131,-129, -146,-135,-155,-143,-161,-100,-156,-158,-251,-225,-210,-206,-375,-192,-1090, -1027,-29965,-29965,-29975,-29976,-29976,-29977,-29977,-29976,-2929]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Bf4 Nf6 6. e3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} Bd6 7. Bxd6 {7.Bg5 is more advanced technology.} Qxd6 8. Bd3 {The position is equal.} Bg4 $5 {[%mdl 4] A promising side line.} 9. Qb3 Nc6 10. h3 Bh5 {[#]} 11. Nge2 $146 ({Predecessor:} 11. g4 Bg6 12. O-O-O O-O-O 13. Bxg6 hxg6 14. Nge2 g5 15. Ng3 g6 16. Kb1 Rh7 17. e4 dxe4 18. Ncxe4 Nxe4 19. Nxe4 {1-0 (24) Yakubboev,N (2591)-Tristan,L (2535) Chess.com INT 2020}) 11... Bxe2 12. Nxe2 O-O 13. Rc1 (13. Qxb7 $2 Na5 $19) 13... Nd8 {[%CAl Bc6d8,Bd8e6,Be6g7,Bg7h5][%mdl 32]} 14. Qa3 Qd7 15. O-O g6 16. Nf4 {[%CAl Be2f4,Bf4d3,Bd3e5][%mdl 32]} Re8 17. Bc2 c6 18. Nd3 Ne6 19. f4 { Black must now prevent f5.} Ng7 20. f5 {[#] Strongly threatening fxg6.} g5 21. Ne5 Qc7 22. h4 (22. Rf3 $11 {keeps the balance.}) 22... g4 $17 (22... gxh4 $6 23. Rf4 $11) 23. Qc3 Ngh5 24. Qe1 Rxe5 25. dxe5 Qxe5 26. Qc3 Qg3 {[%mdl 1024] Black has strong compensation.} 27. Qe1 Qd6 28. Qf2 Re8 29. Rcd1 Qe5 (29... g3 $19 30. Qd2 Qe7) 30. Rd4 (30. Rfe1 $142) 30... c5 (30... Qxe3 $6 31. Qxe3 Rxe3 32. Kf2 $11) 31. Rd2 (31. Rdd1 $17) 31... Ng3 ({Less strong is} 31... Qxb2 32. e4 $17 (32. Ba4 $2 Qb4 $19)) (31... Qxe3 32. Rdd1 $15) 32. Rfd1 Kf8 ({Don't take} 32... Qxe3 33. Qxe3 Rxe3 34. Rxd5 $15) 33. Rd3 $2 (33. b4 {is a better defense.}) 33... Nfe4 (33... Nge4 $142 34. Qe2 Qxb2) 34. Qe1 (34. Rxd5 Qxb2 35. Bxe4 Qxf2+ 36. Kxf2 Nxe4+ 37. Kf1) 34... Qf6 35. Rxd5 Qxh4 {[%csl Gg3][%CAl Rh4h1] Black mates.} 36. Bxe4 Qh1+ {[%mdl 64] [#] Zwischenzug} 37. Kf2 Nxe4+ 38. Ke2 Qxg2+ 39. Kd3 {Weighted Error Value: White=0.55/Black=0.12} 0-1