[Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.13"] [Round "1.16"] [White "Altisen Palmada, Roberto"] [Black "Mendonca, Leon Luke"] [Result "0-1"] [ECO "B87"] [WhiteElo "2102"] [BlackElo "2516"] [Annotator "TA"] [PlyCount "76"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,76,-1,1,7,12,0,2,9,11,14,20,14,0,-15,-2,-55,-73,-71,-70,-74,-70,-64, -66,-77,-77,-60,-62,-94,-75,-148,-128,-167,-149,-139,-127,-249,-249,-249,-235, -228,-238,-396,-413,-410,-403,-491,-490,-495,-492,-484,-454,-539,-541,-597, -589,-1022,-919,-1120,-1086,-1167,-1102,-6261,-1757]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 {7...Nbd7 is the fancy move.} 8. f3 Nbd7 9. Be3 {Bxe6! is the strong threat. B87: Sicilian Scheveningen/Najdorf: 6 Bc4, with early ...b5.} Nc5 10. O-O Bb7 11. Qe1 {The position is equal.} Be7 12. Qg3 O-O 13. Rad1 Nfd7 14. Kh1 {[#]} Rc8 $146 ({Predecessor:} 14... Re8 15. a3 Nxb3 16. cxb3 Rc8 17. Bf4 Nf6 18. Be3 Nd7 19. h4 Nf6 20. Bg5 Nh5 {1/2-1/2 (28) Krabbe,W-Papenfuss,I GER email 2008}) 15. Bf4 (15. a3 $11) 15... b4 $15 16. Na4 Nxa4 $1 ({Reject} 16... Nxb3 17. axb3 Nf6 18. Bd2 $11) 17. Bxa4 {[#]} Nc5 $1 {[%CAl Rc5a4]} 18. Bb3 g6 19. Ne2 {[%CAl Rf4d6]} a5 20. Bxd6 Bxd6 21. Rxd6 {Black keeps a firm grip on the game.} ({But not} 21. Qxd6 $2 Qxd6 22. Rxd6 Ba6 $19) 21... Qc7 {Threatens to win with ...a4.} 22. c3 {[#]} (22. Rd4 $142) 22... Ba6 $1 $17 {[%CAl Ra6e2]} 23. Bd1 bxc3 24. bxc3 Rb8 25. Rd2 (25. Re1 $17) 25... Qxg3 $19 26. hxg3 Rfd8 27. Rd4 e5 28. Rd5 $2 (28. Rxd8+ { was the only defense.} Rxd8 29. c4) 28... Rxd5 29. exd5 Rb2 $1 {[%csl Ba2,Be2]} 30. Re1 Nd3 {Black is clearly winning.} 31. Rf1 Rd2 ({Not} 31... Nc1 32. d6 $19 ) 32. d6 Kf8 33. d7 Ke7 34. Ba4 Rxe2 35. f4 e4 36. f5 Re1 37. f6+ Kd8 38. Rg1 e3 {Weighted Error Value: White=0.78/Black=0.04} (38... Nf2+ $142 39. Kh2 Ng4+ {[%mdl 64] Double Attack} 40. Kh3 Rxg1 41. Kxg4 e3) 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.14"] [Round "2.14"] [White "Mendonca, Leon Luke"] [Black "Unuk, Laura"] [Result "0-1"] [ECO "D37"] [WhiteElo "2516"] [BlackElo "2346"] [Annotator "TA"] [PlyCount "114"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,114,25,27,26,29,27,27,27,22,28,22,0,0,0,0,0,17,0,39,44,36,26,41,29,33, 27,32,-7,-7,0,8,-8,-14,-33,-47,-68,-76,-53,0,-62,-72,-68,-71,-67,0,0,0,0,15, -234,18,12,19,12,127,7,7,7,8,0,7,7,26,0,0,-101,-101,-108,-108,-108,-108,-157, -127,-209,-216,-218,-211,-249,-227,-218,-216,-246,-242,-225,-225,-391,-391, -391,-391,-763,-735,-871,-859,-1175,-1104,-1311,-1308,-1219,-1152,-1124,-1105, -1245,-1141,-966,-919,-759,-742]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 a6 5. cxd5 exd5 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4.} c6 7. Qc2 Be6 $1 { [%mdl 4] outshines the older 7...Be7.} 8. e3 {White has an edge.} Bd6 9. Bd3 Nbd7 10. O-O Qc7 11. Bh4 h6 12. Bg3 O-O 13. b4 Nh5 {[%CAl Rh5g3]} 14. Bxd6 Qxd6 15. Rab1 {[#]} g6 $146 ({Predecessor:} 15... f5 16. Rfe1 b5 17. Ne2 Nb6 18. Ne5 Nc4 19. Bxc4 dxc4 20. Ng6 Rf6 21. Nef4 Nxf4 22. Nxf4 {1-0 (53) Costachi,M (2471)-Suvorov,L (2279) Chess.com INT 2020}) 16. a4 Bg4 17. Nd2 Ng7 18. e4 dxe4 19. Ncxe4 Qxd4 20. h3 Bf5 21. Nf3 Qb6 22. Nd6 {[%CAl Rd3f5]} Bxd3 23. Qxd3 Rad8 (23... Nf6 $15) 24. a5 (24. Qe3 $11) 24... Qc7 $15 {aiming for ...Nf6.} 25. Ne4 f5 26. Qc4+ Kh7 ({Black should try} 26... Rf7 $15 27. Nc5 Nxc5 28. bxc5 Re8) 27. Neg5+ $11 hxg5 28. Nxg5+ Kh6 29. Qh4+ Nh5 30. Ne6 $1 {[%csl Bc7,Bd8,Bf8] [%mdl 64] Double Attack} Qb8 31. Rfe1 {Strongly threatening Rbd1.} Rde8 ({ Wrong is} 31... Kh7 $2 32. g4 $18) (31... Rfe8 $1 $11) 32. Qg5+ (32. g4 $16 Rg8 33. gxh5) 32... Kh7 33. Nxf8+ Nxf8 34. Rbd1 Kg8 {And now ...Rxe1+ would win.} 35. Re7 Qc8 36. Rd6 {White wants to mate with Rxg6+.} Ng7 37. Qf6 (37. g3 $11 { keeps the balance.}) 37... Rxe7 $17 {Black converts the advantage convincingly. } 38. Qxe7 {[#] Black must now prevent Rd8!} Qe8 $1 {[%CAl Re8e7]} 39. Qxe8 Nxe8 40. Rd4 Kf7 41. Kf1 {[#]} (41. Rd8 $17) 41... Ke7 $1 $19 42. Ke2 Nf6 43. Kd3 Ne6 44. Rh4 Kf7 45. Rc4 Nd5 46. g3 Ng5 47. g4 $2 (47. Ke2 {might work better.}) 47... Nxh3 48. gxf5 gxf5 49. Rh4 $2 (49. Ke2) 49... Nxf2+ {Black is clearly winning.} 50. Ke2 Ne4 51. Rh7+ Ke6 52. Rxb7 Nd6 53. Rb8 Ke5 54. Kf3 Kd4 55. Rd8 Nb5 56. Rf8 Kc4 57. Kf2 Nd4 {Weighted Error Value: White=0.46/Black=0. 09} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.15"] [Round "3.22"] [White "Alvarez Albiol, Victor"] [Black "Mendonca, Leon Luke"] [Result "0-1"] [ECO "B90"] [WhiteElo "2206"] [BlackElo "2516"] [Annotator "TA"] [PlyCount "118"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 24,118,31,21,35,35,28,35,37,28,67,-11,-11,-11,-11,-11,-11,-11,-11,-11, -11,-12,0,-18,-12,-31,-22,-34,-24,-27,-25,-22,-18,-19,0,-22,-8,-7,-4,-8,-8,-29, -31,-26,0,-26,-22,-54,-49,-44,-29,-43,-40,-55,-39,-54,-39,-55,-7,-46,-38,-50, -50,-50,-50,-75,-74,-143,-133,-129,-105,-137,-131,-179,-177,-174,-147,-209, -197,-234,-234,-234,-214,-1428,-1385,-5389,-3983,-29979,-29980,-29981,-29982, -29972,-29973,-29967,-29964,-29993,-29994]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Qc7 8. a4 Be7 9. a5 Nbd7 10. Be2 O-O 11. O-O b5 12. axb6 Nxb6 13. Nd2 Bb7 {13...Bb7 has become a bit dusty these days. B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 14. Bxb6 Qxb6 15. Nc4 Qc7 {White is slightly better.} 16. Ne3 {[#]} Qc5 $146 ({ Reject} 16... Bxe4 $6 17. Nxe4 Nxe4 18. Bf3 $18) ({Predecessor:} 16... Rfb8 17. Bd3 Bd8 18. Qf3 Bc8 19. Ncd5 Nxd5 20. Nxd5 Qb7 21. b3 Be6 22. Bc4 Ra7 {1-0 (55) Spasov,V (2578)-Zagorskis,D (2490) Turin 2006}) 17. Ncd5 (17. Nf5 $14 Rfe8 18. Qd3 (18. Nxe7+ Rxe7 19. Qd3 Rd7 $11)) 17... Nxd5 $11 18. Nxd5 Bxd5 19. Qxd5 Qxd5 20. exd5 a5 21. Rfb1 g6 22. c3 Rfc8 23. Ra4 Bd8 24. f4 exf4 25. Rxf4 Rab8 26. Rc4 Bb6+ 27. Kf1 Rxc4 28. Bxc4 {[%mdl 4096] Endgame KRB-KRB} Bc5 29. b3 Kg7 30. Ra1 Bb6 31. Re1 $1 Rc8 32. Ra1 Re8 33. Re1 Rc8 34. Ra1 h5 35. g3 Kf6 36. Ra2 Rc7 37. Kg2 Kg5 38. h4+ Kf6 39. Kf3 Rc8 40. Kg2 Rg8 41. Ra1 Re8 42. Rf1+ Kg7 43. Rf3 Re5 44. Kh3 Re1 {White is now going downhill.} 45. Kg2 (45. Rf1 $142 Re3 46. Rc1) 45... Rg1+ $17 46. Kh3 Rc1 47. Kg2 Rc2+ 48. Kf1 {[#]} Rb2 $1 49. Ke1 f5 50. Kf1 (50. Rf1 $17 {might work better.}) 50... Kf6 $19 51. Rd3 Ke5 52. Rf3 Ba7 53. Rf4 $2 (53. Bb5) 53... Be3 54. Rf3 Ke4 55. Be2 Rxb3 {Black mates.} 56. Bd1 {[#]} Rb1 $1 57. Ke2 Rb2+ 58. Ke1 a4 {[%CAl Ba5a4,Ba4a3][%mdl 32]} 59. Rf1 a3 {Weighted Error Value: White=0.60/Black=0.06} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.16"] [Round "4.15"] [White "Mendonca, Leon Luke"] [Black "Boyer, Mahel"] [Result "1/2-1/2"] [ECO "D37"] [WhiteElo "2516"] [BlackElo "2307"] [Annotator "ChessBase"] [PlyCount "118"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] [TimeControl "40/5400+30:1800+30"] 1. d4 {[%emt 0:00:00]} d5 {[%emt 0:02:30]} 2. Nf3 {[%emt 0:03:18]} Nf6 { [%emt 0:02:26]} 3. c4 {[%emt 0:01:20]} e6 {[%emt 0:00:08]} 4. Nc3 {[%emt 0:00: 43]} h6 5. g3 {[%emt 0:05:38]} Bd6 {[%emt 0:00:35]} 6. Bg2 {[%emt 0:01:23]} O-O {[%emt 0:00:11]} 7. O-O {[%emt 0:00:25]} Nc6 {[%emt 0:00:34]} 8. Nb5 {[%emt 0: 22:36]} dxc4 {[%emt 0:00:39]} 9. Qc2 {[%emt 0:04:15]} a6 {[%emt 0:06:00]} 10. Nxd6 {[%emt 0:01:18]} cxd6 {[%emt 0:00:07]} 11. Qxc4 {[%emt 0:00:12]} Bd7 { [%emt 0:00:12]} 12. Bf4 {[%emt 0:18:32]} Qe7 {[%emt 0:00:17]} 13. Rfc1 { [%emt 0:02:19]} Rfc8 {[%emt 0:04:02]} 14. Qb3 {[%emt 0:02:58]} e5 {[%emt 0:06: 17]} 15. dxe5 {[%emt 0:01:44]} dxe5 {[%emt 0:00:05]} 16. Be3 {[%emt 0:03:16]} Be6 {[%emt 0:00:21]} 17. Qa4 {[%emt 0:02:05]} Bd5 {[%emt 0:10:11]} 18. Rd1 { [%emt 0:10:32]} Qe6 {[%emt 0:04:35]} 19. Qa3 {[%emt 0:03:30]} a5 {[%emt 0:01: 49]} 20. Rac1 {[%emt 0:07:20]} Bxa2 {[%emt 0:02:16]} 21. Rd6 {[%emt 0:01:10]} Qb3 {[%emt 0:00:14]} 22. Qxb3 {[%emt 0:03:54]} Bxb3 {[%emt 0:00:02]} 23. Nd2 { [%emt 0:00:09]} Be6 {[%emt 0:00:42]} 24. Ne4 {[%emt 0:01:55]} Ne8 {[%emt 0:07: 29]} 25. Rdd1 {[%emt 0:00:18]} Nd4 {[%emt 0:01:02]} 26. Bxd4 {[%emt 0:00:35]} Rxc1 {[%emt 0:00:44]} 27. Rxc1 {[%emt 0:00:01]} exd4 {[%emt 0:00:04]} 28. Nc5 { [%emt 0:01:36]} Rc8 {[%emt 0:00:08]} 29. Bxb7 {[%emt 0:00:35]} Rc7 {[%emt 0:00: 07]} 30. Ba6 {[%emt 0:00:46]} Bg4 {[%emt 0:02:33]} 31. f3 {[%emt 0:00:34]} Bf5 {[%emt 0:00:34]} 32. Nb3 {[%emt 0:00:23]} Be6 {[%emt 0:01:08]} 33. Nc5 { [%emt 0:00:20]} Bf5 {[%emt 0:02:16]} 34. Nb3 {[%emt 0:00:36]} Be6 {[%emt 0:00: 44]} 35. Nc5 {[%emt 0:00:01]} Bf5 {[%emt 0:03:10]} 36. g4 {[%emt 0:01:04]} Be6 {[%emt 0:01:55]} 37. Nd3 {[%emt 0:00:35]} Rxc1+ {[%emt 0:01:47]} 38. Nxc1 { [%emt 0:00:00]} Nc7 {[%emt 0:00:14]} 39. Bd3 {[%emt 0:00:52]} Kf8 {[%emt 0:00: 30]} 40. Kf2 {[%emt 0:00:00]} Ke7 {[%emt 0:00:00]} 41. e3 {[%emt 0:12:11]} dxe3+ {[%emt 0:02:24]} 42. Kxe3 {[%emt 0:00:09]} Kd6 {[%emt 0:04:31]} 43. Ne2 { [%emt 0:02:16]} Kc5 {[%emt 0:01:24]} 44. Nf4 {[%emt 0:01:52]} g5 {[%emt 0:05: 13]} 45. Nxe6+ {[%emt 0:01:58]} Nxe6 {[%emt 0:01:26]} 46. Ke4 {[%emt 0:01:35]} Kb4 {[%emt 0:03:07]} 47. Bc2 {[%emt 0:01:05]} Nc5+ {[%emt 0:03:16]} 48. Kd4 { [%emt 0:03:37]} Nd7 {[%emt 0:01:04]} 49. f4 {[%emt 0:03:15]} f6 {[%emt 0:09:32] } 50. fxg5 {[%emt 0:02:07]} fxg5 {[%emt 0:00:06]} 51. Ke4 {[%emt 0:01:01]} Nb6 {[%emt 0:08:38]} 52. Kf5 {[%emt 0:00:37]} Nc4 {[%emt 0:00:16]} 53. Kg6 { [%emt 0:00:14]} Ne5+ {[%emt 0:05:40]} 54. Kh5 {[%emt 0:01:48]} Nf3 {[%emt 0:02: 11]} 55. Kxh6 {[%emt 0:00:45]} Nxh2 {[%emt 0:00:17]} 56. Kxg5 {[%emt 0:00:04]} a4 {[%emt 0:00:09]} 57. Kf4 {[%emt 0:00:14]} Nxg4 {[%emt 0:00:05]} 58. Kxg4 { [%emt 0:00:11]} a3 {[%emt 0:00:04]} 59. bxa3+ {[%emt 0:00:11]} Kxa3 {[%emt 0: 00:07]} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.20"] [White "Romanishin, Oleg M"] [Black "Mendonca, Leon Luke"] [Result "1/2-1/2"] [ECO "A05"] [WhiteElo "2402"] [BlackElo "2516"] [Annotator "TA"] [PlyCount "70"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,70,0,0,0,0,12,0,1,6,7,-28,-33,-45,-44,-41,-20,-38,-28,-42,-37,-35, -30,-43,-49,-54,-56,-70,-77,-56,-64,-60,-37,-69,-67,-94,-31,-26,-33,-31,-31, -75,-31,-24,-27,-27,-26,-25,-25,-27,0,0,0,0,0,0,0,0,0,0,23]} 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. c4 dxc4 5. O-O Nbd7 6. Na3 Nb6 7. Qc2 Be6 {A11: English Opening: 1...c6.} 8. Ng5 Bg4 {8...Bg4 scores better than 8...Qd7.} 9. Nf3 Bxf3 10. Bxf3 Qd4 {[#]} 11. e3 $146 ({Predecessor:} 11. Rb1 h5 12. b3 cxb3 13. Rxb3 Qa4 14. d3 e6 15. Nc4 Nxc4 16. dxc4 b6 17. Qc3 {1-0 (45) Schubert,F (2465) -Haugen,A (2526) ICCF email 2012}) 11... Qd3 12. b3 {[%CAl Rb3c4]} Qxc2 13. Nxc2 cxb3 14. axb3 e6 15. d4 Nfd5 16. e4 Nb4 17. Na3 Be7 18. Be3 O-O 19. Rfc1 Rfd8 20. Nc4 Nxc4 21. bxc4 b6 22. e5 a5 23. Be4 Rac8 (23... g6 $17) 24. c5 $1 $15 {[%CAl Rc5b6]} bxc5 25. dxc5 Ra8 26. Ra4 Nd5 (26... Nd3 $5 {[%CAl Rd3c1]} 27. Rb1 Nxe5 $15) 27. Bd2 Rdb8 28. Rxa5 Rxa5 29. Bxa5 Rb5 30. Bb6 g5 31. Rb1 { The position is equal.} Rxb1+ 32. Bxb1 Bf8 33. Bc2 Bg7 34. Ba4 Bxe5 35. Bxc6 Nxb6 {Weighted Error Value: White=0.08/Black=0.07} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.19"] [Round "6.18"] [White "Mendonca, Leon Luke"] [Black "Souhardo Basak"] [Result "1-0"] [ECO "E15"] [WhiteElo "2516"] [BlackElo "2216"] [Annotator "ChessBase"] [PlyCount "65"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:23]} e6 {[%emt 0: 00:00]} 3. Nf3 {[%emt 0:01:25]} b6 {[%emt 0:00:00]} 4. g3 {[%emt 0:00:42]} Ba6 {[%emt 0:00:15]} 5. Qc2 {[%emt 0:00:30]} c5 {[%emt 0:01:13]} 6. d5 {[%emt 0:00: 26]} exd5 {[%emt 0:00:35]} 7. cxd5 {[%emt 0:00:10]} Bb7 {[%emt 0:00:05]} 8. Bg2 {[%emt 0:00:30]} Nxd5 {[%emt 0:00:54]} 9. O-O {[%emt 0:00:34]} Be7 {[%emt 0:01: 09]} 10. Rd1 {[%emt 0:02:28]} Nc6 {[%emt 0:01:22]} 11. Qa4 Nf6 {[%emt 0:08:15]} 12. e4 {[%emt 0:04:02]} O-O {[%emt 0:05:45]} 13. e5 {[%emt 0:01:05]} Ne8 { [%emt 0:00:03]} 14. Nc3 {[%emt 0:00:33]} Nc7 {[%emt 0:05:52]} 15. Be3 {[%emt 0: 01:29]} Qc8 {[%emt 0:05:54]} 16. Rd2 {[%emt 0:04:31]} Rd8 {[%emt 0:04:41]} 17. Rad1 {[%emt 0:03:56]} Nb4 {[%emt 0:16:40]} 18. a3 {[%emt 0:14:45]} b5 {[%emt 0: 01:46]} 19. Nxb5 {[%emt 0:02:44]} Bc6 {[%emt 0:00:06]} 20. axb4 {[%emt 0:02:33] } Nxb5 {[%emt 0:00:35]} 21. Qb3 {[%emt 0:15:41]} cxb4 {[%emt 0:11:47]} 22. Ng5 {[%emt 0:09:04]} Rf8 {[%emt 0:11:54]} 23. Bxc6 {[%emt 0:21:48]} dxc6 {[%emt 0: 01:36]} 24. e6 {[%emt 0:08:15]} Nc7 {[%emt 0:04:31]} 25. exf7+ {[%emt 0:01:26]} Kh8 {[%emt 0:00:23]} 26. Rd7 {[%emt 0:01:22]} Bxg5 {[%emt 0:00:30]} 27. Bxg5 { [%emt 0:00:30]} Nd5 28. R1xd5 {[%emt 0:00:26]} cxd5 {[%emt 0:00:13]} 29. Qxd5 { [%emt 0:00:43]} a5 30. Be7 h6 {[%emt 0:09:00]} 31. Bxf8 {[%emt 0:01:03]} Qxf8 { [%emt 0:01:24]} 32. Re7 {[%emt 0:01:03]} Rc8 33. Qe4 {[%emt 0:00:28]} 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.20"] [Round "7.13"] [White "Carbonell Sancho, Marc"] [Black "Mendonca, Leon Luke"] [Result "1/2-1/2"] [ECO "B90"] [WhiteElo "2274"] [BlackElo "2516"] [Annotator "TA"] [PlyCount "155"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,155,22,27,0,3,6,5,-7,15,0,0,1,34,51,32,-22,-28,-87,-98,-47,-30,-22,-8, -29,32,42,128,119,149,141,135,91,91,91,144,87,91,91,136,125,125,135,177,163, 296,292,295,281,291,172,179,175,157,167,169,155,162,158,147,147,169,58,60,44, 101,2,3,19,8,31,257,259,267,110,113,104,133,133,123,76,88,85,85,84,84,87,88,82, 90,87,87,87,109,112,116,108,109,112,110,106,137,140,139,99,92,59,85,0,0,0,81, 68,142,0,35,47,75,20,78,81,183,183,183,172,155,168,239,184,191,174,187,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h4 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} e5 7. Nb3 Be7 8. Bg5 Nbd7 9. Qd2 h6 10. Be3 {[#]} Nb6 $146 ({Predecessor:} 10... Ng4 11. Nd5 Nxe3 12. Qxe3 Nf6 13. Nxe7 Qxe7 14. O-O-O Be6 15. g3 Rc8 16. g4 d5 {0-1 (89) Divya,D (2322)-Manish,A (2280) Budapest 2020}) 11. f3 Be6 12. Bxb6 (12. O-O-O $14) 12... Qxb6 $11 13. Nd5 (13. O-O-O $11) 13... Bxd5 $17 14. exd5 e4 15. O-O-O O-O 16. g4 Rfe8 (16... exf3 $11 17. Qf4 f2) 17. g5 $14 e3 ({ Better is} 17... Nh5 $1 $14) 18. Qh2 $1 $16 Nh5 19. Be2 a5 20. a3 Rac8 { Strongly threatening ...Qxb3.} 21. Kb1 $1 a4 22. Nd4 (22. Nc1 $142 $1) 22... Bf8 23. f4 Re4 24. Bxh5 Rxd4 {[#]} 25. Qh3 $1 {[%mdl 512]} Rxd1+ 26. Rxd1 Rc7 ( 26... Re8 {might work better.}) 27. g6 $18 {[%mdl 64] Overworked Piece} fxg6 28. Qe6+ (28. Bxg6 Re7 $16) 28... Kh8 29. Bxg6 (29. Be2 $142 Re7 30. Qxg6) 29... Re7 30. Qc8 {[%CAl Rc8f8]} Kg8 31. Bf5 $1 {Hoping for Re1.} e2 32. Be6+ Kh7 33. Re1 $1 (33. Rh1 $6 Qe3 $11) 33... Qf2 34. Qc3 $1 (34. Rxe2 Qxe2 35. Qxf8 Qd1+ 36. Ka2 Rxe6 $15) 34... Qxh4 35. f5 ({White should play} 35. Qd3+ $18 Kh8 36. Rxe2 (36. Qxe2 b5 $16)) 35... Rc7 $1 $14 {[%CAl Rc7c3]} 36. Qd2 Be7 ( 36... b5 $1 $14) 37. Bf7 (37. Qxe2 $16 {next Bf7 is good for White.} Kh8 38. Rg1) 37... Bg5 $132 {[%mdl 2048] Black is not keeping still} 38. Bg6+ Kh8 {[#]} 39. Rxe2 $1 {[%CAl Re2e8][%mdl 512]} Rc8 $2 ({Black should try} 39... Re7 $1 $14 40. Rxe7 Bxe7) 40. Qd3 $1 $18 Rf8 41. Qe4 (41. Re6 $18 {and White stays clearly on top.}) 41... Qxe4 42. Rxe4 $16 {[%mdl 4096] Endgame KRB-KRB} Ra8 43. Rb4 $1 Ra7 44. Bf7 Bf6 45. c3 g5 46. fxg6 Kg7 47. Be8 $1 h5 48. Bxa4 Kxg6 49. Bd7 h4 50. Kc2 b5 51. Be6 Rh7 52. Rg4+ $1 ({Much weaker is} 52. Rxb5 $6 h3 $11) 52... Bg5 {White should prevent ...h3.} 53. Rg2 $1 Rh8 54. Kb3 Rf8 55. Kb4 Rb8 56. Bd7 Rb7 57. Bxb5 Kf5 58. Ka4 (58. Ka5 $1 $16) 58... Ra7+ $1 $11 59. Kb4 ( 59. Kb3 $11) 59... Rb7 $16 {aiming for ...h3.} 60. Ka5 $1 h3 (60... Bf4 $14) 61. Rf2+ {Cut Off at move 61} (61. Rh2 $1 $16) 61... Kg4 (61... Bf4 $5 { [%CAl Rh3h2]}) 62. Bf1 Kg3 63. Rc2 $1 Bd8+ (63... Rh7 $1 $11 {keeps the balance.}) 64. Ka6 Rh7 {[#]} (64... Rb6+ $16 65. Ka7 Rb3) 65. Bxh3 $1 $18 { [%mdl 512]} Rxh3 {KRB-KR} (65... Kxh3 66. b4) 66. Kb7 Kf3 67. Kc6 {[%mdl 1024] White has strong compensation.} Rh6 (67... Ke3 $142 68. Rg2 (68. Kxd6 Rh6+ 69. Kd7 Kd3 $16) 68... Kd3) 68. Rd2 Bg5 {[#]} 69. Rd4 $1 Bc1 {[#]} 70. Rb4 $2 (70. b4 $1 $18) 70... Rh2 $1 $11 {The position is equal.} 71. Kxd6 {Black must now prevent Kc6.} Bxb2 72. Rb3 Ke4 73. Kc5 Rc2 74. c4 Bd4+ 75. Kb5 Ke5 76. a4 { [%CAl Ba3a4,Ba4a5,Ba5a6][%mdl 32]} Kd6 77. a5 Ra2 78. a6 {White really could win this. Weighted Error Value: White=0.18/Black=0.22} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.21"] [Round "8.13"] [White "Mendonca, Leon Luke"] [Black "Lin, Yingrui"] [Result "1-0"] [ECO "A05"] [WhiteElo "2516"] [BlackElo "2399"] [Annotator "TA"] [PlyCount "143"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,142,18,14,19,15,36,22,41,31,40,29,22,18,38,49,43,35,28,31,25,32,28, 11,13,0,8,0,19,5,18,-4,15,0,14,20,37,6,22,0,28,0,25,18,47,-1,27,0,64,14,39,29, 79,93,98,91,77,-116,-128,-121,-111,-115,-109,-111,-119,-110,-87,-173,-69,-60, -50,-32,-30,-32,-52,-75,-75,-122,-127,-135,-120,-113,-97,-153,-106,-116,-116, -101,-108,-93,-11,-8,0,0,0,0,0,0,8,6,5,0,0,0,51,4,82,54,53,0,12791,9943,5539, 4133,29978,29979,29980,29981,29981,29982,29986,29987,29990,29991,29991,29992, 29997,29998,29998,29999,29999]} 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O g6 5. b3 Bg7 6. Bb2 O-O 7. c4 d6 8. d4 e6 {A15: English Opening: 1...Nf6.} 9. Qc2 Be4 10. Qc1 Nbd7 {The position is equal.} 11. Nc3 Bb7 12. Qc2 c5 {[#]} 13. e4 $146 ({Predecessor:} 13. Rad1 Qe7 14. Rfe1 cxd4 15. Nxd4 Bxg2 16. Kxg2 Rfc8 17. e3 a6 18. Qe2 Ne5 19. f3 Nc6 20. Nxc6 Rxc6 21. e4 {1/2-1/2 (34) Chigaev,M (2588) -Ponkratov,P (2631) Lichess.org INT 2020}) 13... cxd4 14. Nxd4 a6 15. Rad1 Qc7 16. Rfe1 Rfd8 17. Qe2 Nc5 18. h3 Rac8 19. Kh2 Qb8 20. Ba1 Qa8 21. Qe3 Qb8 22. Qe2 Qa8 23. Qe3 Qb8 24. Kg1 Qa8 25. f3 Qb8 26. g4 Re8 27. Qf2 Qa8 28. Nde2 Qb8 29. Ng3 e5 30. f4 Ne6 (30... exf4 $11 31. Qxf4 Nfd7) 31. f5 Nf4 $1 32. g5 N6h5 33. Nxh5 Nxh5 34. Qxb6 Nf4 35. f6 $2 (35. Rxd6 Bf8 $15) (35. Qxd6 $16 {stays on course.} Qxd6 36. Rxd6) 35... Nxg2 $17 36. fxg7 Nxe1 37. Rxe1 Qc7 38. Qxc7 Rxc7 39. Bb2 Kxg7 40. Rf1 (40. Rd1 $17 {was necessary.}) 40... Re6 (40... h6 $19 41. Ba3 hxg5 42. Bxd6 Rd7) 41. Nd5 $15 Bxd5 (41... Rc6 {with more complications.} 42. Nf6 h6 43. h4 a5 44. Ba3 a4) 42. exd5 {[%mdl 4096] Endgame KRR-KRB} Re8 43. Rf6 Rd7 44. Ba3 Red8 45. Bb4 h6 46. h4 hxg5 47. hxg5 Kf8 48. a3 (48. Kf2 $142) 48... Ke7 {...Rh8 is the strong threat.} 49. c5 dxc5 { [%mdl 64] Discovered Attack} 50. Bxc5+ Ke8 51. d6 Kf8 ({Black should play} 51... Rb7 $17 52. b4 Ra8) 52. Kf2 $11 Kg7 {White must now prevent ...Rc8.} 53. Ke3 Rh8 {Strongly threatening ...Rh4.} 54. Ke4 Rh5 55. Be3 Rh3 56. b4 $1 Kf8 57. Rf1 Ke8 ({Much worse is} 57... Rxd6 $6 58. Bc5 $16) 58. Bc5 Rg3 (58... Rxa3 $11 59. Kxe5 Rd3) 59. a4 Rxg5 (59... Rd8 $1 $11 {keeps the balance.}) 60. Kd5 $16 Rd8 61. Kc6 {Cut Off at move 61} ({White should try} 61. Bb6 $1 $14 Rd7 62. b5 axb5 63. axb5) 61... Rf5 $2 {[%mdl 8192] [#]} (61... Rc8+ $11 62. Kb7 Rd8 63. Kxa6 Rf5) 62. Rxf5 $1 $18 gxf5 {[#] KR-KB} 63. Bb6 $1 {[%CAl Rb6d8]} Rd7 64. a5 {White mates.} e4 65. b5 e3 66. Bxe3 Kd8 67. Bb6+ Kc8 68. Bc7 Rxd6+ 69. Bxd6 axb5 70. a6 b4 71. a7 {[%CAl Ra7a8]} b3 72. a8=R# {Weighted Error Value: White=0.19/Black=0.18} 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.22"] [Round "9.11"] [White "Batsiashvili, Nino"] [Black "Mendonca, Leon Luke"] [Result "0-1"] [ECO "A50"] [WhiteElo "2460"] [BlackElo "2516"] [Annotator "TA"] [PlyCount "128"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,128,6,2,5,0,6,2,2,6,17,0,7,4,8,6,0,-15,-17,-20,-18,-18,-10,-39,-41, -46,-31,-33,-30,-39,-25,-32,-23,-26,-20,-20,-20,-24,-3,-17,0,-25,-5,-25,-21, -25,-25,-26,-31,-68,-68,-70,-36,-37,-22,-38,-39,-40,-50,-56,-52,-53,-41,-44,-5, -52,-52,-85,0,-27,0,-85,-85,-105,-93,-100,-90,-109,-64,-69,-67,-331,-340,-285, -311,-521,-481,-502,-521,-519,-454,-408,-383,-714,-714,-479,-703,-696,-681, -656,-588,-1034,-936,-6341,-6149,-12108,-9002,-29971,-29973,-29972,-29973, -29973,-29974,-29974,-4631,-29982,-29983,-29982,-29983,-29982,-29980]} 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Qc2 dxc4 5. Qxc4 Bg4 6. Nbd2 Nbd7 {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines.} 7. g3 e6 8. Bg2 Be7 {The position is equal.} 9. O-O O-O 10. Qb3 Qb6 11. Nc4 Qa6 12. Re1 Rfd8 13. Bf4 Bxf3 14. Bxf3 Nb6 15. Nxb6 Qxb6 {[#]} 16. Rad1 $146 ({Predecessor:} 16. Red1 Qxb3 17. axb3 Nd5 18. Bd2 Rd7 19. Ba5 Bf6 20. e3 a6 21. h4 g6 22. Kg2 {1/2-1/2 (79) Agrest,E (2561)-Jaracz,P (2490) Dresden 2007}) 16... Qxb3 17. axb3 Nd5 18. Bd2 Bb4 19. e3 a5 20. h4 g6 21. Re2 Bxd2 22. Rexd2 Nb4 23. Kf1 a4 24. bxa4 Rxa4 25. Be4 Rda8 26. Ke2 Kg7 (26... R8a6 {with more complications.} 27. Bf3 Rb6 28. e4 Ra2 29. Kf1 Kg7) 27. Bc2 Nxc2 28. Rxc2 $11 {[%mdl 4096] Endgame KRR-KRR} Rb4 29. Rd3 Ra2 30. Rdd2 Kf6 31. Kd3 Kf5 32. Kc3 Rb5 33. f3 Ra1 34. e4+ Kf6 35. b3 Rba5 36. Kb4 h5 37. Rc5 Ra6 38. Rcc2 R6a5 (38... Ke7 $17) 39. Rc5 Ra6 (39... Ra8 $11 ) 40. Rcc2 $17 Ke7 41. d5 Rb6+ 42. Kc4 cxd5+ 43. exd5 exd5+ 44. Rxd5 Rg1 45. Rb5 $2 {[%mdl 8192] [#] White does not recover from this.} ({White should play } 45. Re5+ $15 Kf6 46. Rg5) 45... Rxb5 $19 46. Kxb5 Rxg3 {KR-KR} 47. Rc7+ $2 ( 47. Kb6 {was worth a try.} Rxf3 48. Re2+ Kd7 49. b4) 47... Ke6 48. Rxb7 Rxf3 49. b4 Rf4 50. Rb6+ Kf5 51. Kc5 $2 (51. Rc6 Rxh4 52. Rc1) 51... Rxh4 52. Rb7 f6 53. b5 Rh1 54. b6 Rb1 55. Rh7 Kg4 56. b7 f5 57. Kc6 f4 58. Rd7 f3 59. Rd4+ Kg3 60. Rd6 g5 61. Rd5 {[#]} Rxb7 $1 {[%mdl 576] Promotion} 62. Kxb7 g4 {Black mates.} 63. Rxh5 f2 64. Rf5 Kg2 {Weighted Error Value: White=0.75/Black=0.07} 0-1 [Event "Sitges"] [Site "Sitges"] [Date "2020.12.23"] [Round "10.6"] [White "Mendonca, Leon Luke"] [Black "Checa, Nicolas"] [Result "1/2-1/2"] [ECO "D15"] [WhiteElo "2516"] [BlackElo "2527"] [Annotator "TA"] [PlyCount "33"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,33,23,31,23,18,18,23,24,34,30,43,0,0,-14,0,0,0,0,0,-26,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5 Nbd7 6. Bf4 Nh5 7. Bd2 g6 8. e4 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4.} dxe4 9. Nxe4 {next Qe2 is good for White.} Ndf6 10. Nc3 {White has an edge.} Be6 11. Be2 {[#]} Qc7 $1 $146 {[%mdl 8] A relevant novelty.} ({Predecessor:} 11... Bd5 12. O-O Ng7 13. Bf4 Ne6 14. Be5 Bg7 15. Nxd5 Nxd5 16. Bxg7 Nxg7 17. Bc4 e6 {0-1 (78) Bagaturov, G (2399)-Volkov,S (2589) Malatya 2015}) 12. Ne5 Rd8 13. Be3 Ng7 $1 14. Bf4 { [#] And now Nxg6! would win.} Ngh5 15. Be3 Ng7 16. Bf4 {Black must now prevent Nxg6!} Ngh5 17. Be3 {Weighted Error Value: White=0.07/Black=0.04} 1/2-1/2