[Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.1"] [White "Ganguly, Surya Shekhar"] [Black "Chowdhury, Sohel"] [Result "1-0"] [ECO "B10"] [WhiteElo "2635"] [BlackElo "2149"] [Annotator "TA"] [PlyCount "87"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,87,-2,24,24,23,24,25,24,41,14,39,41,52,38,60,59,55,50,58,43,37,29,42, 30,59,33,33,45,52,55,93,42,74,66,114,114,134,134,134,134,212,211,220,212,214, 213,323,189,320,306,310,199,377,370,521,537,535,535,506,448,588,569,581,565, 505,425,656,637,2395,2154,29970,29970,29987,29987,29986,29987,29991,29992, 29994,29995]} 1. e4 c6 2. Nf3 d5 3. d3 dxe4 4. dxe4 Qxd1+ 5. Kxd1 Bg4 6. Be2 { B10: Caro-Kann: 2 d3 and 2 c4.} Nd7 7. Ne1 Bxe2+ 8. Kxe2 {White has an edge.} e5 9. f3 f6 10. a4 {[#]} Ne7 $146 ({Predecessor:} 10... a5 11. Nd2 Nb6 12. Nd3 Nh6 13. Nb3 Nc4 14. Bxh6 gxh6 15. Nd2 Nb6 16. Nf1 Rg8 {1/2-1/2 (51) Gharamian, T (2602)-Bagheri,A (2348) Playchess.com INT 2021}) 11. Nd3 Ng6 12. Be3 Be7 13. Nd2 Ngf8 14. b4 Ne6 15. c3 Kf7 16. Nc4 b6 17. g3 Rhc8 18. Rhd1 Rd8 19. h4 h6 20. h5 ({Better is} 20. f4 $16) 20... Rac8 21. Bf2 {Black is on the road to losing.} c5 {Strongly threatening ...cxb4.} (21... Rc7) 22. b5 Nc7 23. f4 exf4 24. gxf4 Nf8 (24... Ne8 $16 {was necessary.}) 25. f5 $18 Nh7 26. Bg3 Ng5 27. Ke3 Kg8 (27... Ke8 $142 28. Nf2 Na8) 28. Nf2 (28. Nf4 $142) 28... Ne8 {[#]} ( 28... Nf7 $142 29. Rxd8+ Bxd8) 29. a5 $1 Rxd1 30. Nxd1 Bd8 $2 (30... Nf7 31. axb6 axb6 32. Nxb6 Rd8) 31. axb6 Bxb6 (31... axb6 $142 32. Ra6 Bc7) 32. Nxb6 axb6 33. Ra6 Rd8 34. Nb2 ({Not} 34. Nf2 Nd6 $18) 34... Nd6 35. Bxd6 Rxd6 { [%mdl 4096] Endgame KRN-KRN} 36. Nc4 Rd1 37. Rxb6 Re1+ (37... Rh1 $142 38. Rb8+ Kf7) 38. Kd3 Nxe4 39. Re6 Nf2+ 40. Kc2 {White mates.} Ra1 41. Re8+ Kh7 42. b6 { [%CAl Bb5b6,Bb6b7][%mdl 32]} Ra2+ 43. Kb1 Ra4 {[#]} 44. b7 $1 {Weighted Error Value: White=0.13/ Black=0.56} 1-0 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.2"] [White "Puranik, Abhimanyu"] [Black "Sadhwani, Raunak"] [Result "1-0"] [ECO "D02"] [WhiteElo "2584"] [BlackElo "2545"] [Annotator "Shahid"] [PlyCount "53"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,53,-5,7,0,0,0,0,0,0,0,-12,-16,8,8,0,15,17,0,0,0,-3,0,25,22,37,58,64, 66,80,66,109,64,112,111,228,236,225,220,487,489,660,653,643,642,887,666]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 e6 6. Bb5 {D02:1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Qb6 7. c4 {[#]} Bd7 $146 {[%CAl Rc5d4]} ({Predecessor:} 7... dxc4 8. a4 cxd4 9. exd4 Bb4 10. O-O Bxd2 11. Nxd2 Qxd4 12. Be3 Qd5 13. Nxc4 O-O {1/2-1/2 (81) Pert,R (2436)-Grover,S (2508) London 2019}) 8. dxc5 {The position is equal.} Bxc5 9. O-O O-O 10. Rc1 a6 11. Ba4 Be7 12. cxd5 Nxd5 13. Nc4 Qd8 {[#] Strongly threatening ...b5.} 14. Bb3 Nxf4 15. exf4 Nb4 16. a3 Nd5 17. f5 Bf6 18. Nce5 Bb5 19. Re1 Nf4 20. fxe6 fxe6 $2 (20... Nxe6) 21. g3 Nd5 (21... Nd3 $16) 22. Nd4 $18 Nc7 (22... Bxe5 $4 23. Nxe6 Qf6 24. Nxf8 Rxf8 25. Rxe5 Qxe5 26. Qxd5+ Qxd5 27. Bxd5+ Kh8 28. Bxb7 $18) 23. Nxb5 ({Don't do} 23. Nxe6 Nxe6 24. Bxe6+ Kh8) 23... axb5 $2 (23... Qxd1 24. Rexd1 Nxb5 25. Nd7) 24. Nd7 {White is clearly winning.} Rf7 {[#]} 25. Rxc7 {[%mdl 512]} Qxc7 26. Bxe6 Qd8 27. Bb3 {Weighted Error Value: White=0.04/ Black=0.41} 1-0 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.3"] [White "Mollah Abdullah, Al Rakib"] [Black "Narayanan.S.L"] [Result "1/2-1/2"] [ECO "D38"] [WhiteElo "2463"] [BlackElo "2618"] [Annotator "TA"] [PlyCount "81"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,81,9,15,14,8,13,9,14,16,0,0,0,0,0,0,-11,0,-13,19,13,18,-58,-52,-57, -64,-24,-8,-15,-12,-56,-26,-66,-65,-71,-67,-69,-58,-60,-47,-53,-56,-87,-77,-87, 14,-50,0,-112,0,8,0,0,0,0,0,0,0,0,0,0,0,-20,0,0,0,-49,-37,-47,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Bb4 5. cxd5 exd5 6. Bf4 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} Ne4 7. Rc1 Nc6 8. Nd2 g5 9. Bg3 Nxg3 10. hxg3 Nxd4 11. e3 Bxc3 12. bxc3 Ne6 13. Qf3 {[#]} c6 $146 ({Predecessor:} 13... Ng7 14. Nb3 Qd6 15. Bd3 g4 16. Qe2 Be6 17. O-O O-O 18. Rfd1 Rad8 19. c4 Qe7 20. cxd5 Rxd5 {1/2-1/2 (63) Rous,D (2220)-Teh,E (2285) Prague 2017}) 14. c4 d4 15. Nb3 (15. c5 $11) 15... Qe7 $15 16. Be2 dxe3 17. Qxe3 Qf6 18. O-O O-O 19. Rcd1 Ng7 20. Qc5 Re8 21. Rd6 Qe7 22. Bd3 {[#]} Nf5 $1 23. Bxf5 Bxf5 24. Rfd1 Qe5 25. Qb4 Bg4 26. R1d4 a5 27. Qd2 ({White should play} 27. Qxb7 $11 Be6 28. Qxc6) 27... Be6 28. Nc1 {[#]} (28. Rd3 $11 {remains equal.}) 28... h5 (28... Bd5 $1 $17 {[%mdl 512]} 29. Rd7 Qe1+ 30. Kh2 Qxd2 31. Rxd2 Bxc4 32. Rxb7 a4) 29. Nd3 $11 Qf5 30. f3 a4 31. g4 hxg4 32. Rxg4 f6 33. Re4 Bf7 34. Nf2 { Threatening Ng4.} Kg7 35. Rd7 b5 36. cxb5 cxb5 37. Rxe8 (37. g4 $5 {[%CAl Rg4f5]} Qc5 38. Kg2 $11) 37... Rxe8 38. Ne4 {Strongly threatening Rxf7+!} Qe5 39. Nd6 $1 {The position is equal.} Rf8 40. a3 Kg8 41. Qd3 {Weighted Error Value: White=0.20/Black=0.15} 1/2-1/2 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.4"] [White "Chatterjee, Debaraj"] [Black "Rahman, Ziaur"] [Result "0-1"] [ECO "E11"] [WhiteElo "2223"] [BlackElo "2419"] [Annotator "TA"] [PlyCount "113"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,113,4,31,18,6,0,0,0,6,-11,0,-8,0,0,0,-9,-22,8,2,0,0,-68,-77,-66,-74, -66,-67,-65,-58,-81,-50,-54,0,0,0,0,14,23,19,-6,0,-8,72,9,58,35,85,0,0,0,0,0,0, 0,0,0,-8,-43,-10,-167,-72,-68,-67,-91,-25,-110,-95,-121,0,-120,-122,-386,-411, -370,-302,-302,-302,-411,-363,-458,-383,-404,-390,-391,-391,-277,-247,-806, -802,-812,-695,-725,-744,-722,-714,-667,-510,-419]} 1. d4 e6 2. c4 d5 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 {[%CAl Bb8d7,Bd7f6,Bf6d5] [%mdl 32]} 8. Qc2 c6 9. Rd1 Ne4 10. Be1 {E11: Bogo-Indian.} f5 11. Nfd2 Ndf6 { [#]} 12. Nxe4 $146 {The position is equal.} ({Predecessor:} 12. Nf1 Bd7 13. b3 Be8 14. Nc3 Bg6 15. Qb2 Bd6 16. f3 Nxc3 17. Bxc3 h5 18. e3 {1-0 (75) Jumabayev, R (2654)-Suvorov,L (2279) chess.com INT 2020}) 12... fxe4 13. f3 Bd7 14. Nc3 { [%CAl Rf3e4]} exf3 15. exf3 dxc4 16. a4 Nd5 17. Qe2 Kh8 18. Bf2 b5 19. axb5 ({ White should try} 19. f4 $11) 19... cxb5 $15 20. f4 a5 {[%CAl Ba7a5,Ba5a4] [%mdl 32]} 21. Ne4 ({Much weaker is} 21. Nxd5 exd5 22. Bxd5 Bg4 $11) 21... a4 22. Nc5 c3 23. Bxd5 exd5 24. bxc3 Bf6 (24... Bd6 $15) 25. Qf3 Bf5 26. g4 Bc8 27. Rdb1 Bh4 28. Bg3 Bxg3 29. hxg3 {[#]} Qe8 (29... Qg5 $1 $11) 30. Re1 (30. Nd3 $16) (30. Qxd5 $4 Qe3+ 31. Kh2 Bxg4 $19) 30... Qf7 (30... Qg6 {looks sharper.} 31. f5 Qd6 32. Re5 g6 33. Nd3 gxf5 34. gxf5 Ra7) 31. Re5 a3 32. f5 ( 32. Re2 $16) 32... g6 $1 $11 {[%CAl Rg6f5]} 33. Qe3 {Threatens to win with Re7. } gxf5 {...f4 is the strong threat.} 34. Re7 Qg6 35. Qe5+ Qf6 36. g5 Qxe5 37. Rxe5 (37. dxe5 {is interesting.} f4 38. e6 Kg8 39. Kg2 a2 40. Nd3) 37... Kg7 { Strongly threatening ...f4.} 38. Ra2 $2 (38. Nd3 $1 $11 {and White is okay.}) 38... Kg6 (38... f4 $19 {has better winning chances.} 39. Kg2 fxg3 40. Kxg3 Rf5 41. Re7+ Kg6) 39. Nd3 $17 Kxg5 40. Nf4 h5 ({Better is} 40... Ra7 $17 41. Rxd5 Re8) 41. Nh3+ (41. Re7 $1 $11 {remains equal.}) 41... Kh6 42. Nf4 {[#]} Rf6 ( 42... Bd7 $1 $17 43. Rxd5 Be8) 43. Rxd5 (43. Re7 $1 $11 {was the only way to keep the balance.} h4 44. Rh2) 43... Rc6 44. Rc5 {[%mdl 8192]} (44. Rxb5 $17 Rxc3 45. Kf2) 44... Rxc5 $19 45. dxc5 {[%mdl 4096] Endgame KRB-KRN} Bb7 46. Kf2 Be4 47. Ke3 Ra4 48. Ne2 Bd5 49. Ra1 a2 50. Nd4 Kg5 51. c6 {White hopes to continue with c7.} Rc4 52. Nxb5 (52. Rxa2 Rxc3+ 53. Kd2 Rxc6 54. Ra7) 52... Bxc6 {Black is clearly winning.} 53. Nd4 Bd5 54. Kd2 Rc8 55. Nc2 Bf7 56. Ne3 Bb3 57. c4 {Weighted Error Value: White=0.37/Black=0.23} 0-1 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.5"] [White "Adhiban, B...."] [Black "Alam, Monjur"] [Result "1-0"] [ECO "C10"] [WhiteElo "2659"] [BlackElo "1853"] [Annotator "Shahid"] [PlyCount "86"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,86,35,42,33,35,40,40,42,68,57,75,75,68,50,59,49,39,42,60,51,45,29,52, 33,86,90,95,92,100,35,121,100,138,123,125,98,101,101,104,102,104,101,118,122, 104,93,173,170,173,166,183,172,315,199,502,488,725,731,710,878,919,915,878,902, 886,867,839,752,29989]} 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. O-O Ngf6 8. Ng3 Be7 9. Qe2 Bxf3 {9...Bxf3 scores better than 9... 0-0.} 10. Qxf3 c6 11. c3 {C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4.} O-O 12. Re1 Re8 13. a4 $5 {[%CAl Ba2a4,Ba4a5][%mdl 4] [#] White is slightly better. Exploring less charted territory.} Nf8 $146 ({Predecessor:} 13... a5 14. Bd2 Qb6 15. Ra2 Qb3 16. Bb1 c5 17. Ne2 c4 18. Nf4 Bd6 19. Nh5 e5 20. dxe5 Rxe5 21. Nxf6+ Nxf6 22. Rxe5 Bxe5 {1/2-1/2 (49) Pierucci,F (1950) -Arias,J (2116) Villa Martelli 2017}) 14. a5 Qd5 15. Ne4 a6 16. Bf4 Ng6 17. Bg3 Rad8 18. h3 Qd7 19. Nxf6+ Bxf6 20. Re3 Bg5 21. Re4 f5 ({Black should try} 21... Qd5 $14) 22. Ree1 $16 Kh8 23. Rad1 Bf6 24. Bc4 (24. Qe3 $16) 24... Nf8 ({ Black should play} 24... f4 $1 $14 25. Bh2 (25. Bxf4 Nxf4 26. Qxf4 e5 $11) 25... e5) 25. b4 g6 26. Be5 Qg7 27. Re3 Bxe5 28. Rxe5 Re7 29. Rde1 {[%CAl Bd1e1,Be1e3,Be3g3][%mdl 32]} Rde8 30. R1e3 Qf6 {Black wants to play ...Nd7.} 31. Qe2 Kg7 32. g4 Kf7 (32... Qh4 $16 {is a better defense.}) 33. f4 $18 h6 34. Rg3 {aiming for gxf5.} Qh4 35. Qg2 {[#] Black must now prevent gxf5.} fxg4 ( 35... Kf6 $142) 36. hxg4 {Strongly threatening g5.} ({Don't take} 36. Rxg4 $6 Qf6 $18) (36. f5) 36... Qf6 $2 (36... Kg8 {is more resistant.} 37. Rh3 Qf6) 37. g5 {White is clearly winning.} Qg7 (37... Qh8 $142 38. gxh6 Qxh6) 38. f5 Rc7 ( 38... hxg5 39. fxg6+) (38... gxf5 39. Rxf5+ Kg8 (39... Kg6 40. gxh6+) 40. gxh6) 39. f6 Qh7 40. Rh3 h5 41. Rhe3 Rd7 42. Qh2 Rd6 43. R5e4 Red8 {Weighted Error Value: White=0.12/Black=0.31} 1-0 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.6"] [White "Zia, Tahsin Tajwar"] [Black "Kovalev, Vladislav"] [Result "0-1"] [ECO "D02"] [WhiteElo "2092"] [BlackElo "2648"] [Annotator "TA"] [PlyCount "86"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,86,-3,8,8,29,18,16,18,16,0,26,13,28,28,39,26,43,34,72,19,45,20,34,25, 34,27,81,71,75,2,13,0,0,0,-12,-14,0,-27,-12,-13,-9,-15,-15,-110,-111,-108,-110, -106,-108,-104,-107,-108,-88,-87,-89,-97,-102,-106,-78,-87,-66,-68,-66,-212, -117,-117,-117,-117,-112,-100,-70,-125,-113,-1330,-1212,-2647,-2169]} 1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. c3 e6 5. Nd2 Nc6 6. Ngf3 cxd4 7. exd4 {D02:1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Nh5 8. Be3 Bd6 9. Ne5 { The position is equal.} g6 10. Nd3 {The main line 10.Nd3 scores better than 10. g4.} f6 11. g3 Ng7 12. Bg2 Nf5 13. O-O O-O 14. Re1 {[#]} Rf7 $146 ({ Predecessor:} 14... Kg7 15. b4 Re8 16. Rc1 a6 17. a4 Rb8 18. a5 b6 19. axb6 Qxb6 20. Bf4 Bxf4 21. Nxf4 {1-0 (44) Berkes,F (2658)-Banusz,T (2629) Budapest 2017}) 15. b4 (15. Bf4 $16) 15... g5 16. Rc1 Rb8 17. b5 Nce7 18. c4 dxc4 (18... b6 $11 {keeps the balance.}) 19. Nxc4 $16 b6 20. Qb3 ({Don't play} 20. Nxd6 Qxd6 21. g4 Nh4 $11) (20. Qg4 $16) 20... Bb7 $11 21. Nxd6 Qxd6 22. Bxb7 Rxb7 23. Nb4 Rd7 24. a3 Kg7 25. Red1 Rf8 26. d5 Nxd5 27. Rc6 $2 (27. Qb1 $11 Nfe7 ( 27... Nfxe3 28. fxe3) 28. Qe4) 27... Qe5 $17 28. Nxd5 Rxd5 29. Rxd5 exd5 $40 { [%mdl 128] Black goes for the king.} 30. Qd3 Re8 31. Bd2 Nd4 32. Bc3 Ne2+ 33. Kg2 Nxc3 34. Rxc3 {[%mdl 4096] Endgame KQR-KQR} Re7 35. Rc8 Rd7 36. a4 d4 37. Qc4 ({White should play} 37. g4 $15) 37... Kh6 (37... d3 $19 38. Qg8+ Kh6) 38. Qd3 Qd5+ 39. Kg1 Re7 {[#] ...Re1+ is the strong threat.} 40. Rc1 Kg7 41. Rd1 ( 41. g4 $15) 41... g4 42. f3 $2 {[%mdl 8192]} (42. Rc1 $17) 42... gxf3 $19 43. Rd2 Qe5 {Weighted Error Value: White=0.51/Black=0.13} 0-1 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.7"] [White "Reefat, Bin-Sattar"] [Black "Mitrabha, Guha"] [Result "0-1"] [ECO "C02"] [WhiteElo "2409"] [BlackElo "2445"] [Annotator "Shahid"] [PlyCount "78"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. a3 Bb5 7. b4 cxd4 {C02: French: Advance Variation.} 8. Bxb5+ Qxb5 9. Nxd4 Qd7 {[#] The position is equal.} 10. Nd2 $146 ({Predecessor:} 10. O-O Nc6 11. f4 Nxd4 12. cxd4 Be7 13. f5 {1/2-1/2 (13) Starostits,I (2482)-Labeckas,K (2400) Schwarzach 2009}) 10... Nc6 11. N2f3 Nge7 12. h4 Rc8 13. h5 Nxd4 14. Qxd4 Qb5 15. Qxa7 Rxc3 16. Bd2 Rc4 {[#] ...Re4+ is the strong threat.} 17. Nd4 Qd7 18. Rc1 (18. Qa8+ $11 Rc8 19. Qa7) 18... Nc8 $17 19. Qa8 Be7 20. Rxc4 dxc4 21. Bc3 $2 {[#]} (21. Be3 $17 { was necessary.}) 21... O-O $2 (21... Bd8 $1 $19 {[%CAl Rd8b6]} 22. h6 (22. b5 Nb6 23. Qa7 O-O) 22... O-O) 22. Qa5 $15 Bd8 (22... Rd8 $15) 23. Qb5 $11 Qc7 24. O-O Nb6 25. Nf3 Be7 26. Bd4 Nd5 27. Rc1 Rc8 28. Rc2 (28. g3 $15) 28... Qc6 ({ Black should play} 28... c3 $17 {aiming for ...Ra8.} 29. Ne1 b6) 29. Qxc6 $15 Rxc6 30. b5 (30. Be3 $11) 30... Rc8 31. Nd2 c3 ({But not} 31... Bxa3 $6 32. Rxc4 Rxc4 33. Nxc4 $11) 32. Nb1 Bd8 {And now ...Rc4 would win.} 33. Kf1 Rc4 $36 {[%mdl 2048] White is under pressure.} 34. Be3 ({Only move:} 34. Bxc3 $15 Rc5 35. Ke2) 34... Bc7 $19 35. Ke2 Bxe5 36. Kd3 Ra4 37. g3 f5 38. Re2 Bf6 39. Bc1 Kf7 {Weighted Error Value: White=0.30/Black=0.23} 0-1 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.8"] [White "Koustav Chatterjee"] [Black "Mehdi Hasan Parag"] [Result "1-0"] [ECO "A20"] [WhiteElo "2431"] [BlackElo "2204"] [Annotator "TA"] [PlyCount "73"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,73,10,0,25,15,23,8,0,32,13,15,20,29,20,53,0,40,51,62,59,54,54,43,43, 154,156,182,60,76,87,122,126,175,169,201,199,231,239,191,108,122,116,194,194, 199,199,341,341,436,396,1226,1155,597,590,556,529,514,504,637,623,662,654,1214, 1174]} 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. O-O Nb6 7. b3 { A20: English Opening: 1...e5.} Be7 {next ...e4 is good for Black.} 8. Bb2 f6 9. Nc3 {[%CAl Bb1c3,Bc3e4,Be4c5][%mdl 32] The position is equal. 9.Na3 is the recent fashion.} Be6 10. Rc1 Qd7 11. Ne4 O-O-O 12. Qc2 $1 Kb8 13. Rfd1 {[#]} ({ White should play} 13. d4 $14) 13... Qc8 $146 ({Predecessor:} 13... Bd5 14. d4 Nb4 15. Qb1 Qg4 16. Nc5 e4 17. Nh4 g5 18. f3 exf3 19. Nxf3 Nd7 {1/2-1/2 (40) Kerr,S (2478)-Rogos,J (2518) ICCF email 2012}) 14. d4 Nb4 15. Qb1 f5 16. Nc5 e4 17. Ne5 Bd5 (17... h5 $14) 18. Ba3 $1 $16 {[%CAl Ra3b4]} Nc6 {[#]} 19. Nxc6+ ({ Better is} 19. Na6+ $1 $18 {[%mdl 512]} bxa6 20. Nxc6+ Bxc6 21. Bxe7) 19... bxc6 $14 20. e3 Nd7 21. Qb2 Ka8 22. Nxd7 Qxd7 23. Bc5 $1 Rb8 24. Qa3 {[%csl Gc5][%CAl Ra3a7]} Bxc5 25. Rxc5 ({But not} 25. Qxc5 $6 g5 $14) (25. dxc5 $18 h5 26. Rd4) 25... g5 26. Rdc1 $40 {[%mdl 128] White goes for the king.} h5 {[#]} ( 26... Rb7 $16) 27. Ra5 $1 $18 {[%csl Ga3][%CAl Ra5a7]} Rb7 {[#]} 28. Bf1 $1 { [%CAl Rf1a6] Hoping for Ba6.} Rhb8 (28... Kb8 $142 29. Ba6 Rb6) 29. Rcc5 { Rxa7+! is the strong threat.} Qe7 30. Qa4 Rf8 $2 (30... f4 31. Rxd5 (31. exf4 e3 $19) (31. gxf4 $2 gxf4 32. Rxd5 Rg8+ 33. Rg5 Rxg5+ 34. Kh1 Rg8 $19) 31... cxd5) 31. Ba6 {White is clearly winning.} Rfb8 32. Bxb7+ Rxb7 33. Rxd5 cxd5 34. Rxd5 Qe6 35. Re5 Qf6 36. Qd7 f4 37. Re6 {Weighted Error Value: White=0.13/ Black=0.41} 1-0 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.9"] [White "Sabya, Sachi"] [Black "Gukesh D"] [Result "0-1"] [ECO "D38"] [WhiteElo "1874"] [BlackElo "2563"] [Annotator "TA"] [PlyCount "78"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 21,78,6,18,-20,-13,-23,0,-10,0,-42,-42,-49,-50,-49,-48,-66,-78,-81,-70, -64,-64,-68,-57,-60,-14,-73,-72,-80,-71,-66,-70,-68,0,0,0,-92,-43,-337,-230, -223,-205,-402,-388,-382,-306,-309,-309,-316,-315,-393,-398,-516,-383,-516, -505,-586,-583,-621,-593]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 Nbd7 6. cxd5 exd5 7. e3 h6 8. Bxf6 Qxf6 9. Bd3 O-O 10. Qb3 Qd6 11. O-O c6 {[#]} 12. Ne2 $146 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} ({ Predecessor:} 12. Rad1 Ba5 13. h3 Re8 14. Qa4 Bc7 15. Rfe1 Nf6 16. Ne5 Qe7 17. f4 Nd7 18. Qc2 Nxe5 19. fxe5 Be6 {1-0 (36) Finegold,B (2481)-Krush,I (2444) Saint Louis 2017}) 12... Ba5 13. Ng3 $1 Bc7 14. Rac1 {The position is equal.} Qe7 15. Bf5 g6 16. Bb1 Nf6 17. Rfe1 Re8 18. e4 {next exd5 is good for White.} Bxg3 ({Reject} 18... Nxe4 $6 19. Bxe4 dxe4 20. Rxe4 $11) 19. exd5 {[#]} Bxh2+ $1 20. Kxh2 Qd6+ 21. Kg1 Rxe1+ 22. Rxe1 Qxd5 23. Qb4 (23. Bc2 $1 $11) 23... Qd8 $17 24. Qb3 {With the idea Bxg6.} Kg7 25. Ne5 Qe7 26. Qg3 {[%CAl Rb1g6] [#]} Nh5 ({Black should play} 26... Ng4 $1 $15) 27. Qc3 $11 {Threatens to win with Nxg6.} Nf4 28. Nxc6 (28. Ng4 $11 {keeps the balance.} Ne2+ 29. Rxe2 Qxe2 30. d5+ Kg8 31. Nf6+ (31. Nxh6+ Kh7 $11) 31... Kf8 32. Bc2) 28... Qg5 {[%csl Gf4] [%CAl Rg5g2]} 29. Be4 {[%mdl 8192] This move loses the game for White.} Bf5 $40 {[%mdl 128] Strongly threatening ...Bxe4. White is in trouble.} 30. d5+ {[#]} Kh7 $1 31. Qe5 (31. Bf3 bxc6 32. dxc6) 31... bxc6 $19 32. dxc6 Bxe4 {[%csl Ge4, Gf4][%CAl Rg5g2]} 33. Qxg5 hxg5 34. Rxe4 {[%mdl 4096] Endgame KRN-KR} Rc8 35. Ra4 Rxc6 36. g3 Rc1+ 37. Kh2 Nd3 {Black is clearly winning.} 38. b3 Kg7 39. Rxa7 g4 {Weighted Error Value: White=0.51/Black=0.16} 0-1 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.10"] [White "Neelotpal, Das"] [Black "Md., Matiur Rahman"] [Result "1/2-1/2"] [ECO "C88"] [WhiteElo "2425"] [BlackElo "1979"] [Annotator "TA"] [PlyCount "82"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,82,39,20,39,19,43,32,53,28,68,52,56,37,48,2,6,0,0,0,99,52,45,49,126, 56,56,65,59,64,89,70,83,60,79,55,63,47,57,47,54,63,67,50,97,56,118,112,314,281, 316,284,344,306,313,90,90,90,90,90,104,26,26,12,77,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. a4 Rb8 9. d3 d6 { C88: Closed Ruy Lopez: Anti-Marshall Systems.} 10. Nbd2 {has lost popularity (10.h3).} Bg4 11. h3 Be6 {White is slightly better.} 12. c3 {[#]} h6 $146 ({ Predecessor:} 12... Nd7 13. Bd5 Na7 14. axb5 Nxb5 15. c4 Nd4 16. Nxd4 exd4 17. Nf3 Bf6 18. Rxa6 Nc5 {1-0 (38) Balogh,C (2665)-Blatny,P (2396) Austria 2012}) 13. axb5 axb5 14. d4 {[#] Threatens to win with d5.} Bxb3 15. Qxb3 {Strongly threatening d5.} (15. Nxb3 $5 {[%CAl Rd4d5]} Ra8 16. Rxa8 Qxa8 17. Qd3 $14) 15... Qd7 16. d5 Nd8 17. Nf1 Nh5 (17... c6 $11) 18. Qd1 {And now Nxe5! would win.} Nf6 19. Ng3 $36 {[%mdl 2048] White has good play.} Kh7 (19... c6 $14) 20. b3 ({White should play} 20. Be3 $16) 20... Nb7 $14 21. Be3 Ra8 22. Qd3 Rfb8 23. c4 bxc4 24. bxc4 c5 25. Nd2 Qc8 26. f4 (26. Nf5 {feels hotter.} Bf8 27. Rab1 Nd7 28. Rb5 g6 29. Ng3) 26... Nd7 27. Nf3 Rxa1 28. Rxa1 Ra8 29. Rb1 f6 $2 ( 29... Bf8) 30. f5 (30. Nh4) 30... Nd8 (30... Bd8 $14) 31. Nh4 $16 Nf8 $2 (31... Nf7 $16) 32. Qe2 Nf7 33. Ng6 Qc7 34. Qg4 Nh8 {[%CAl Rh8g6]} 35. Nxh8 (35. Nxe7 $18 Qxe7 36. Nh5) 35... Kxh8 36. Nh5 {[%csl Gh5][%CAl Rg4g7] [#]} Bd8 37. Rb6 { Hoping for Rxd6!} Ra7 ({Avoid the trap} 37... g6 $2 38. fxg6 Nxg6 39. Qxg6 $18) 38. Rc6 ({Better is} 38. Rb3 $16) 38... Qd7 $11 39. Kh2 Qe7 (39... Bc7 $11) 40. Bd2 (40. Rc8 $16) 40... Bc7 $1 41. Be3 Qf7 {Weighted Error Value: White=0.30/ Black=0.26} 1/2-1/2 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.11"] [White "Sahu, Sekhar Chandra"] [Black "Hossain, Enamul"] [Result "0-1"] [ECO "A03"] [WhiteElo "2049"] [BlackElo "2426"] [Annotator "TA"] [PlyCount "70"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,70,0,0,-19,0,-5,-21,-15,5,-59,50,40,40,31,26,-50,-54,-48,-25,-84,-75, -127,-121,-128,-85,-64,-64,-94,-28,-63,-66,-131,-41,-89,-89,-77,-52,-139,-139, -134,-119,-125,-125,-168,-172,-298,-319,-530,-355,-356,-354,-302,-197,-197, -182,-170,-189,-152,-170,-177,-160,-1596,-1527]} 1. f4 d5 2. Nf3 Nf6 3. e3 c6 4. Be2 Bf5 5. O-O e6 {[#]} 6. Nh4 $146 {A03: Bird's Opening with 1...d5.} ({ Predecessor:} 6. b3 h6 7. Bb2 Be7 8. Ne5 Nbd7 9. Bf3 O-O 10. d3 Qb6 11. Qe2 Rad8 12. Nc3 {1-0 (45) Goepfert,J (1980)-Klimpel,S (1848) Dresden 2016}) 6... h5 7. Nxf5 exf5 8. b3 {The position is equal.} d4 9. Ba3 (9. Na3 $11) 9... c5 ( 9... dxe3 $15 10. dxe3 Nbd7) 10. Bf3 Nc6 11. Qe2 {Black must now prevent exd4+. } Be7 12. exd4 (12. Bxc6+ $11 bxc6 13. Bb2) 12... Nxd4 $15 ({Of course not} 12... Qxd4+ 13. Kh1 $11) 13. Qd3 Qb6 {Hoping for ...c4!} 14. c3 (14. Re1 $11 Rd8 15. Qc4) 14... Nxf3+ $17 15. gxf3 (15. Rxf3 $142 O-O 16. Qc2) 15... O-O 16. c4 Qd6 17. Qxd6 Bxd6 18. Nc3 b6 (18... Rad8 $17 19. Nb5 Bxf4 20. Bxc5 Rfe8) 19. Ne2 Rfe8 20. Kf2 (20. Rfe1 $15) 20... Re6 (20... h4 $17 {Threatens to win with ...Nh5.} 21. d4 Nh5 22. dxc5 Bxf4) 21. Rfe1 h4 22. Rad1 Rae8 23. d3 (23. Bc1 $15) 23... Nh5 24. Bc1 g6 25. a3 Rd8 26. d4 cxd4 $1 27. Nxd4 {[#]} (27. Kf1 $142) 27... Bc5 $1 $19 {[%CAl Rc5d4]} 28. Bb2 (28. Rxe6 fxe6 29. Be3) 28... Red6 29. Ke3 {If White can now play b4 this consolidates a bit.} a5 30. Rd2 g5 31. Rg1 {[#]} Re8+ $1 ({Inferior is} 31... Nxf4 32. Rxg5+ Ng6 33. Rxf5 $11) 32. Kf2 Nxf4 {aiming for ...Nh3+.} 33. Rxg5+ Rg6 34. Rxg6+ fxg6 35. Rd1 $2 (35. Bc3 $17) 35... Re2+ {[%mdl 64] Double Attack. Weighted Error Value: White=0.54/ Black=0.27} 0-1 [Event "BAN-chT SAIF POWERTEC 2020"] [Site "Dhaka"] [Date "2021.03.24"] [Round "6.12"] [White "Rahman, Taibur"] [Black "Deshmukh, Anup"] [Result "1/2-1/2"] [ECO "D15"] [WhiteElo "2215"] [BlackElo "2190"] [Annotator "RC"] [PlyCount "77"] [EventDate "2021.03.19"] [EventType "team-tourn"] [EventCountry "BAN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] [TimeControl "5400+30"] {[%evp 0,77,19,25,29,-3,29,31,29,5,67,42,46,36,71,73,79,66,81,62,76,75,78,45, 65,-5,32,48,68,44,37,31,30,29,33,27,60,84,84,84,84,66,82,65,127,127,240,250, 230,233,233,234,234,234,240,231,279,273,240,245,342,268,277,280,251,235,231, 164,157,217,219,219,219,237,236,236,324,315,317,293]} 1. d4 {[%emt 1:30:30]} Nf6 {[%emt 1:30:30]} 2. c4 {[%emt 0:00:30]} c6 {[%emt 0:00:30]} 3. Nc3 { [%emt 0:00:30]} d5 {[%emt 0:00:30]} 4. Nf3 {[%emt 0:00:30]} a6 {[%emt 0:00:30]} 5. a4 {[%emt 0:00:30]} h6 {[%emt 0:00:30]} 6. Bf4 {[%emt 0:00:30]} g6 {[%emt 0: 00:30]} 7. e3 {[%emt 0:00:30]} Bg7 {[%emt 0:00:30]} 8. h3 {[%emt 0:00:30]} O-O {[%emt 0:00:30]} 9. Bd3 {[%emt 0:00:30]} dxc4 {[%emt 0:00:30]} 10. Bxc4 { [%emt 0:00:30]} Nd5 {[%emt 0:00:30]} 11. Bh2 {[%emt 0:00:30]} Be6 {[%emt 0:00: 30]} 12. Be2 {[%emt 0:00:30]} Nxc3 {[%emt 0:00:30]} 13. bxc3 {[%emt 0:00:30]} Qa5 {[%emt 0:00:30]} 14. Qc2 {[%emt 0:00:30]} c5 {[%emt 0:00:30]} 15. O-O { [%emt 0:00:30]} Nc6 {[%emt 0:00:30]} 16. Qb2 {[%emt 0:00:30]} Bd5 {[%emt 0:00: 30]} 17. Nd2 {[%emt 0:00:30]} e5 {[%emt 0:00:30]} 18. Nc4 {[%emt 0:00:30]} Bxc4 {[%emt 0:00:30]} 19. Bxc4 {[%emt 0:00:30]} Qc7 {[%emt 0:00:30]} 20. Rab1 { [%emt 0:00:30]} cxd4 {[%emt 0:00:30]} 21. cxd4 {[%emt 0:00:30]} Rad8 {[%emt 0: 00:30]} 22. Rfc1 {[%emt 0:00:30]} Rd7 {[%emt 0:00:30]} 23. d5 {[%emt 0:00:30]} Na5 {[%emt 0:00:30]} 24. Bb5 {[%emt 0:00:30]} axb5 {[%emt 0:00:30]} 25. Rxc7 { [%emt 0:00:30]} Rxc7 {[%emt 0:00:30]} 26. Qxb5 {[%emt 0:00:30]} Rfc8 {[%emt 0: 00:30]} 27. Bg3 {[%emt 0:00:30]} Rc5 {[%emt 0:00:30]} 28. Qd3 {[%emt 0:00:30]} Rc3 {[%emt 0:00:30]} 29. Qe2 {[%emt 0:00:30]} Rc2 {[%emt 0:00:30]} 30. Qg4 { [%emt 0:00:30]} h5 {[%emt 0:00:30]} 31. Qg5 {[%emt 0:00:30]} Nc4 {[%emt 0:00: 30]} 32. Kh2 {[%emt 0:00:30]} Nd2 {[%emt 0:00:30]} 33. Rd1 {[%emt 0:00:30]} Ne4 {[%emt 0:00:30]} 34. Qe7 {[%emt 0:00:30]} Bf6 {[%emt 0:00:30]} 35. Qxb7 { [%emt 0:00:30]} h4 {[%emt 0:00:30]} 36. d6 {[%emt 0:00:30]} hxg3+ {[%emt 0:00: 30]} 37. fxg3 {[%emt 0:00:30]} Ng5 {[%emt 0:00:30]} 38. Rf1 {[%emt 0:00:30]} Kg7 {[%emt 0:00:30]} 39. Rxf6 {[%emt 0:00:30]} 1/2-1/2