[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Salem, AR Saleh"]
[Black "Buksa, Nataliya"]
[Result "1/2-1/2"]
[ECO "E10"]
[WhiteElo "2642"]
[BlackElo "2337"]
[Annotator "TA"]
[PlyCount "142"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,142,0,-6,31,20,54,53,52,50,54,43,54,56,43,44,71,60,75,54,80,80,79,90,96,68,96,87,139,139,125,125,153,139,172,166,176,147,147,149,164,158,159,159,204,202,178,161,140,156,165,166,170,179,221,221,237,222,315,320,315,310,281,260,268,269,261,247,232,240,604,409,360,245,241,226,209,206,189,0,0,0,730,731,711,694,734,726,701,690,660,267,325,304,306,283,263,0,0,0,273,255,207,247,233,235,456,456,851,808,712,710,733,36,29986,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Nc6 5. cxd5 exd5 6. Bg2 Bb4+ 7. Nc3 {[%cal Bb1c3,Bc3a4,Ba4c5][%mdl 32]} O-O 8. O-O {LiveBook: 8 Games} Ne7 {E20: Nimzo-Indian: 4 g3 and 4 f3} (8... Ne4 9. Bd2 Re8 10. Rc1 Bg4 11. Nxe4 dxe4 12. Bxb4 exf3 13. exf3 Be6 14. Bc3 Bxa2 15. b3 Qd5 16. f4 Qxb3 {1-0 (26) Yermolinsky,A (2519)-Brown,M (2364) Las Vegas 2014}) 9. Qb3 Ba5 $146 ({Predecessor:} 9... Bxc3 10. bxc3 b6 11. Bf4 Ng6 12. Bd2 Re8 13. Rfe1 Bf5 14. Rac1 Qd7 15. c4 c6 16. Bc3 {1-0 (84) Burkardt,B-Koch,S Prutting 1991}) 10. Bg5 c6 {White is slightly better.} 11. Bxf6 gxf6 12. Na4 Bc7 13. Rfc1 Rb8 14. e3 Bf5 15. Nc5 Qc8 16. Qd1 Re8 17. b4 a6 18. a4 Bd6 19. Qf1 Qd8 20. Nh4 Bg6 (20... Bg4 $142) 21. Bh3 $16 Kg7 22. Ra2 {[%cal Ba1a2,Ba2b2,Bb2d2,Bd2d4][%mdl 32]} a5 23. b5 Bxc5 24. Rxc5 Qd6 25. Rb2 b6 26. Rc3 c5 27. dxc5 bxc5 28. Rd2 Qb6 29. Qc1 c4 30. Qa3 Rbd8 31. Rd4 Be4 32. Bg2 $1 Bxg2 33. Kxg2 (33. Nxg2 $6 Nf5 $16) 33... Qe6 34. Rc1 Ng6 35. Qc3 Ne5 (35... Nxh4+ $142 36. Rxh4 Qb6 37. Rg4+ Kh8) 36. Rcd1 $18 (36. Qxa5 Ra8 $16) 36... Nd3 37. R1xd3 cxd3 38. Qxa5 Rc8 39. Qd2 Rc4 {Hoping for ...Rxd4.} 40. Qxd3 Rxd4 41. Qxd4 {[%mdl 4096] Endgame KQR-KQN} Qd7 $2 (41... Rb8 42. Qa7 Rd8) 42. Qd3 Ra8 43. Nf5+ Kh8 44. Qc2 Rc8 45. Qb1 $1 {a5 is the strong threat.} Ra8 46. Qc2 $2 (46. e4 $18) 46... Rc8 $11 47. Qd3 {Strongly threatening a5.} Rc4 $2 {[%mdl 8192]} (47... Ra8 $11) 48. Qa3 $1 $18 {[%cal Ra3f8]} Kg8 49. Nd4 Qe8 {If only Black now had time for ...Qe4+....} 50. a5 Qe4+ 51. f3 Qb1 52. Qd6 (52. Qb3 $142 Qe1 53. a6) 52... Rxd4 53. exd4 {KQ-KQ} Qc2+ 54. Kh3 Qf5+ 55. Kg2 $2 (55. g4 $1 $18 {[%cal Rg4f5]} Qxf3+ 56. Kh4) 55... Qc2+ $11 56. Kh3 $2 {[%mdl 8192]} (56. Kf1 $11 Qd1+ 57. Kg2 Qd2+ 58. Kg1 Qe1+ 59. Kg2 Qd2+ 60. Kh3 Qh6+ 61. Kg2 Qd2+) 56... Qf5+ $18 57. g4 $1 {[%cal Rg4f5,Bg3g4,Bg4g5][%mdl 32]} Qxf3+ 58. Kh4 Qf2+ 59. Qg3 $1 {[%cal Rg3f2]} ({Not} 59. Kh5 Qf1 $16) 59... Qd2 $2 {[#]} (59... Qxd4 60. Kh3 Kg7) 60. g5 $1 {[%cal Rg5f6]} Qxd4+ (60... f5 $142 61. Qb8+ Kg7 62. Qe5+ Kg8) 61. Kh5 f5 62. b6 {White threatens b7 and mate.} Qb2 63. Qd6 $2 ({White has to play} 63. h3 $18 Kg7 64. Qe1) 63... Qf2 $2 {[%mdl 8192]} (63... Qg2 $14 64. Qg3 Qb2) 64. Qd8+ $2 (64. h4 {mates} Qb2 65. a6 Qd4 66. Qd8+ Kg7 {[#]} 67. Qf6+ $1 {[%mdl 512]} Qxf6 68. gxf6+ Kxf6 69. a7) 64... Kg7 $11 {[%cal Rf2h2] The position is equal.} 65. Qf6+ Kg8 {[%cal Rf2h2]} 66. Qd8+ Kg7 {[%cal Rf2h2]} 67. Qf6+ Kg8 {[%cal Rf2h2]} 68. h4 Qf4 $1 {[%cal Rf4g4]} 69. Qd8+ Kg7 {[%csl Gf5][%cal Rf4g4]} 70. Qf6+ Kg8 {( -> ...Qg4+)} 71. Qd8+ Kg7 {Precision: White = 74%, Black = 38%.} 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Tomczak, Jacek"]
[Black "Mista, Aleksander"]
[Result "0-1"]
[ECO "B70"]
[WhiteElo "2600"]
[BlackElo "2595"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,96,8,10,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,-168,-152,-159,-159,-159,-164,-166,-176,-232,-237,-233,-213,-237,-212,-210,-254,-604,-304,-649,-625,-713,-691,-636,-477,-958,-791,-1172,-1112,-1083,-1067,-1352,-1254,-5285,-519,-6281,-6264,-5097,-3064,-29965,-29967,-29960,-5310,-6103,-4205,-29968,-29972,-29971,-29975,-29975,-29975,-29975,-29976,-29980,-29981,-29981,-29982,-29981,-29982,-29980,-29980]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 Nc6 7. Nde2 Bd7 8. Bg2 Qc8 9. h3 Bg7 10. Be3 {LiveBook: 14 Partien} h5 {B70: Sizilianisch (Drachen-Variante)} 11. b3 h4 {Und weiter mit ...hxg3 wäre nett.} 12. g4 Nxg4 $1 {Die Stellung ist ausgeglichen.} 13. hxg4 Bxg4 14. f3 h3 15. fxg4 hxg2 $146 ({Vorgänger:} 15... Qxg4 16. Qd2 hxg2 17. Rxh8+ Bxh8 18. O-O-O Rc8 19. Rg1 Ne5 20. Nd4 Rxc3 21. Qxc3 Nf3 22. Rxg2 Nxd4 23. Kb2 Qh3 24. Rh2 {1-0 (24) Orlov,V (2430)-Barhudarian,R (2099) St Petersburg 2005}) 16. Rxh8+ Bxh8 17. Kf2 Qxg4 {zielt auf ...Se5 ab.} 18. Qg1 Nb4 $36 {[%mdl 2048] Schwarz hat Druck.} 19. Rc1 $2 (19. Qxg2 $11 {und Weiss ist OK.} Qxg2+ 20. Kxg2) 19... Rc8 20. Bd2 Bxc3 $1 21. Nxc3 {[#]} Rxc3 $1 {[%mdl 512]} 22. Bxc3 Nxa2 23. Bb2 (23. Re1 $142 Nxc3 24. Qxg2) 23... Nxc1 $19 24. Qxc1 Qxe4 25. Qd2 Kd7 26. Kg1 f5 27. Qxg2 $2 (27. Bd4) 27... Qxg2+ 28. Kxg2 {[%mdl 4096] Endspiel KL-KB} e5 29. Kg3 g5 30. Bc1 {[#]} g4 $1 31. Kh4 (31. c4 $142 b5 32. cxb5) 31... d5 {[%cal Bd6d5,Bd5d4][%mdl 32]} 32. Bd2 d4 33. Be1 Ke6 34. Kg5 b6 {[%cal Bb7b6,Bb6b5][%mdl 32]} 35. Bf2 a6 (35... a5 $142 {Und ...b5 würde nun gewinnen.} 36. Be1 e4) 36. Bh4 (36. Be1 $142 a5 37. Kh4) 36... a5 37. Be1 b5 38. Bxa5 g3 {[%cal Bg4g3,Bg3g2][%mdl 32]} 39. Be1 g2 40. Bf2 {[#]} Kd5 $1 {[%cal Rd5e4]} 41. Kh4 f4 {[%cal Bf5f4,Bf4f3][%mdl 32] Schwarz setzt Matt.} 42. Kh3 f3 43. Kg3 e4 {[%cal Be5e4,Be4d3][%mdl 32]} 44. Bg1 Ke5 45. Bh2 d3 46. cxd3 exd3 47. Kxf3+ Kd4 48. Kf2 Kc3 {Precision: Weiß = 29%, Schwarz = 89%.} 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Aravindh, Chithambaram VR"]
[Black "Bartel, Mateusz"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2580"]
[BlackElo "2604"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,120,0,6,-6,-5,-19,-10,-12,0,0,0,-11,21,18,11,19,13,24,27,34,18,30,56,0,0,0,0,0,3,0,0,-6,-10,-13,0,-66,-57,-54,-52,-65,-55,-120,-82,-86,-81,-103,-105,-95,-92,-95,-98,-98,-97,-112,-74,-74,-74,-64,-72,-73,-60,-56,-50,-60,-29,-116,-113,-116,-39,-38,-33,-31,-67,-113,-118,-122,-127,-127,-148,-148,-156,-397,0,-81,-73,-73,-46,-73,-66,-74,-81,-81,-81,-81,-72,-87,-8,-8,-8,-8,-8,-8,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e6 2. Nc3 d5 3. d4 a6 4. cxd5 exd5 5. g3 (5. Nf3 Nf6 6. Bg5 Be6 7. e3 Nbd7 8. Bd3 Bd6 9. O-O c6 10. Bf4 Qc7 11. Bxd6 Qxd6 12. Qc2 {½-½ (12) Lenic,L (2659)-Berkes,F (2688) Velky Cetin 2018}) 5... Nf6 {LiveBook: 6 Games} 6. Bg5 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6} Be7 7. Bg2 c6 8. Qb3 $146 ({Predecessor:} 8. Nf3 O-O 9. O-O Ne4 10. Nxe4 dxe4 11. Bxe7 Qxe7 {0-1 (36) Hernandez Castro,J (1848)-Staniforth,M (1940) Ascot 2013}) 8... Ra7 9. Nf3 Be6 10. Ne5 h6 11. Bxf6 Bxf6 12. f4 Nd7 {[%cal Bb8d7,Bd7b6,Bb6d5][%mdl 32]} 13. Qc2 Nb6 14. O-O O-O 15. Rad1 Ra8 16. e4 ({Better is} 16. f5 $14 Bd7 17. e4) 16... dxe4 $11 17. Nxe4 Nd5 {...Ne3 is the strong threat.} 18. Qf2 Bf5 19. Nc5 Qc7 20. g4 Bxe5 21. fxe5 Bxg4 22. Rde1 (22. Rd3 $11) 22... Rad8 $15 23. Kh1 b6 24. Ne4 f5 {[%cal Bf7f5,Bf5f4][%mdl 32]} 25. Nc3 ({White should try} 25. Nd6 $15) 25... f4 26. Nxd5 cxd5 27. Qh4 Qd7 28. h3 Be6 29. Rxf4 Rxf4 30. Qxf4 Bxh3 31. Rf1 Be6 32. Rf3 Qe8 33. Bf1 Rd7 34. Qh4 Qc8 35. Rc3 Qf8 36. Bh3 Re7 37. Rc6 (37. Bxe6+ $11 Rxe6 38. Qg4) 37... Bxh3 $17 38. Qxh3 {[%mdl 4096] Endgame KQR-KQR} Qf2 (38... Qf4 $1 $17 39. Rc8+ Kh7 40. Qd3+ g6) 39. Rc8+ $1 $15 Kh7 40. Qd3+ g6 {And now ...Qh4+ would win.} 41. Rc6 Qh4+ 42. Kg2 Qg4+ 43. Qg3 Qe4+ 44. Kh2 Rf7 $1 {[%cal Rf7f3]} 45. e6 $2 (45. Rf6 $17 Rxf6 46. exf6) 45... Re7 $2 (45... Qe2+ $1 $19 46. Qg2 Qh5+ 47. Kg1 Rf4 48. Rc7+ Kh8 49. Rc8+ Kg7 50. Rc7+ Kf8 51. Rf7+ Rxf7 52. exf7 Kxf7 53. Qf1+ Qf5 54. Qxa6 Qg4+ 55. Kf2 Qxd4+ 56. Kg3 Qe5+ 57. Kh3 Qd6) 46. Qe5 (46. Qd6 $1 $11 {keeps the balance.} Qh4+ 47. Kg2) 46... Qxe5+ $1 $17 47. dxe5 {[#] KR-KR} g5 $1 {Threatens to win with ...Kg6.} 48. Rxb6 Kg6 49. Rxa6 Kf5 50. a4 Kxe5 ({Of course not} 50... Rxe6 $6 51. Rxe6 Kxe6 52. a5 $11) 51. a5 d4 {aiming for ...d3.} 52. Kg3 {[#]} d3 ({Reject} 52... Rxe6 $6 53. Rxe6+ Kxe6 54. a6 $11) (52... h5 $1 $17 {Hoping for ...h4+.} 53. Rb6 h4+ 54. Kg4 d3) 53. Kf2 $1 $11 {The position is equal.} g4 54. Ra8 $1 Kxe6 {White must now prevent ...g3+!} 55. a6 $1 g3+ 56. Kxg3 d2 57. Rd8 Rd7 58. Rxd7 Kxd7 59. a7 d1=Q {( -> ...Qg1+)} 60. a8=Q Qb3+ {Precision: White = 62%, Black = 67%.} 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Sengupta, Deep"]
[Black "Dhulipalla, Bala Chandra Prasad"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2565"]
[BlackElo "2268"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,125,35,33,49,57,48,54,60,50,51,57,38,53,0,0,0,20,20,22,-45,-31,-63,-75,-68,0,0,0,0,0,0,0,3,6,0,26,26,26,26,26,26,29,14,16,0,29,26,31,11,26,0,5,0,32,16,22,14,9,0,0,0,11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Qf5 d6 8. Nxf6+ Qxf6 9. Qxf6 gxf6 10. a3 Bc5 11. b4 Bb6 {A28: Englische Eröffnung (Vierspringer-Variante)} 12. Bb2 a5 (12... Ne7 13. d4 c6 14. c5 dxc5 15. dxc5 Bc7 16. Nd2 f5 17. e4 Be6 18. f3 Red8 19. Nc4 {½-½ (69) Kulaots,K (2573)-Neiksans,A (2584) Sweden 2018}) 13. b5 Ne7 14. Be2 c6 {LiveBook: 7 Partien} 15. d4 {[%cal Bd2d4,Bd4e5][%mdl 32]} cxb5 16. c5 dxc5 17. Bxb5 Rd8 {[%cal Rc5d4]} 18. dxe5 f5 $146 ({Vorgänger:} 18... fxe5 19. Nxe5 {½-½ (37) Penzold,A (2376)-Bruedigam,M (2312) Germany 2014}) 19. Nd2 Be6 20. Nc4 ({Besser ist} 20. Ke2 $14) 20... Bc7 $11 21. Rc1 Nc6 {Droht ...Sa7.} 22. Nd6 Nxe5 23. Bxe5 ({Günstiger ist} 23. Nxb7 $11 Rdb8 24. Rxc5) 23... Bxd6 $15 24. Bxd6 Rxd6 25. Rxc5 Rad8 (25... a4 $1 $15 26. Ke2 Ra5) 26. O-O $11 Rd5 27. Rxd5 Rxd5 {[%mdl 4096] Endspiel KTL-KTL} 28. Rb1 Rd6 29. a4 Kg7 30. Kf1 Kf6 31. Ke2 b6 32. Rc1 Ke5 33. Rc7 Kf6 34. Kf3 Ke5 35. Ke2 Kf6 36. h3 Bb3 37. f3 Ke5 38. Be8 Rd8 39. Bb5 Rd6 40. Re7+ Be6 {Die Stellung ist ausgeglichen.} 41. Re8 f4 42. Rg8 h6 43. h4 Bb3 44. exf4+ Kxf4 45. g3+ Ke5 46. Ke3 Kd5 47. Rc8 Re6+ 48. Kd3 Rf6 49. Ke3 Re6+ 50. Kf2 Kd4 51. g4 Bd5 $1 52. Rc1 Rf6 53. Rd1+ Ke5 54. Rd3 Rf4 55. Re3+ Kf6 56. Rd3 Ke5 57. Be8 Rb4 58. Ke3 {f4+! ist eine echte Drohung.} Be6 59. h5 Rc4 60. Bb5 Rb4 61. Rc3 Bd5 62. Rd3 Be6 63. Rc3 {Precision: Weiß = 53%, Schwarz = 79%.} 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Markowski, Tomasz"]
[Black "Molenda, Marcin"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2561"]
[BlackElo "2382"]
[Annotator "TA"]
[PlyCount "41"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,41,45,42,29,32,57,57,66,63,58,56,59,57,76,75,77,47,139,146,388,379,518,522,540,526]} 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bb4 5. Nd5 Bc5 6. e3 O-O 7. Ne2 {[%cal Bg1e2,Be2c3,Bc3d5][%mdl 32]} Nxd5 8. cxd5 Ne7 {A25: English Opening vs King's Indian with ...Nc6 but without early d3} 9. O-O c6 (9... d6 10. d4 exd4 11. Nxd4 Nf5 12. Ne2 Qf6 13. Rb1 a5 14. b3 Bd7 15. Bb2 Qh6 16. e4 Ne7 17. Bd4 b6 18. Qc1 Qh5 19. Nf4 {0-1 (39) Ivanchuk,V (2738)-Nepomniachtchi,I (2732) Leuven 2017}) 10. Nc3 {LiveBook: 3 Games} d6 {White is slightly better.} 11. d4 Bb4 $146 ({Predecessor:} 11... Bb6 12. dxc6 bxc6 {0-1 (25) Gunter,D (2145)-Lalic,S (2405) St Helier 1997}) 12. dxc6 Nxc6 13. Nd5 Ba5 14. dxe5 dxe5 15. b3 {[%cal Bb2b3,Bb3b4,Bb4a5][%mdl 32]} Be6 16. Ba3 Re8 17. Rc1 (17. b4 $5 {[%cal Rb4a5]} Ne7 18. Nc3 $14 (18. bxa5 Nxd5 19. Qd2 Qd7 $14)) 17... Qg5 {[#]} (17... Qd7 $14) 18. b4 $1 $36 {[%cal Rb4a5][%mdl 2048] White is on the roll.} Rad8 $2 (18... e4 $16) 19. h4 $18 ({Less strong is} 19. bxa5 e4 $18) 19... Qg6 20. bxa5 e4 21. Rxc6 1-0

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Klekowski, Maciej"]
[Black "Bronowicki, Mateusz"]
[Result "1-0"]
[ECO "A27"]
[WhiteElo "2511"]
[BlackElo "2288"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,0,-2,0,55,-15,0,-7,0,-33,11,-13,73,79,281,262,215,26,75,61,39,11,5,0,0,0,52,52,75,-23,0,-22,0,0,0,0,51,6,97,33,326,49,101,102,140,25,69,63,158,162,226,213,197,189,224,58,58,59,51,8,10,12,438,433,651,601,738,738,767,758]} 1. c4 e5 2. Nc3 Nc6 3. Nf3 Bb4 4. Nd5 a5 (4... e4 5. Ng1 Nf6 6. a3 Be7 7. e3 Nxd5 8. cxd5 Ne5 9. Qc2 f5 10. d4 Ng4 11. Ne2 O-O 12. Nc3 {1-0 (61) Kovacevic,B (2480)-Bosiocic,M (2566) Porec 2016}) 5. Nxb4 axb4 6. d4 {A27: English Opening: Three Knights Variation} d5 $146 (6... d6 $11) ({Predecessor:} 6... e4 7. Nd2 f5 8. Nb3 d5 9. cxd5 Qxd5 10. Bf4 Nge7 11. Bxc7 O-O 12. e3 {0-1 (27) Maliszewski,J (2012)-Stross,F (2235) Liberec 2003}) 7. e3 (7. Nxe5 $14 Nge7 8. Nxc6 Nxc6 9. c5) 7... exd4 8. Nxd4 {The position is equal.} Nf6 9. Bd2 {White wants to play Nxc6.} Ne4 {And now ...Qf6 would win.} 10. Nxc6 Qf6 (10... Qh4 $11 {remains equal.} 11. Qf3 (11. g3 Qf6 $11) 11... Nxd2 12. Qxd5 (12. Kxd2 bxc6 13. g3 Qe7 $15) 12... Nxf1) 11. f3 $16 Bg4 $2 (11... Nxd2 $16 12. Qxd2 bxc6) 12. Nd4 $18 c5 13. Qe2 $2 (13. Qc2 $18 b3 14. Qxb3 (14. Nxb3 Bxf3 15. gxf3 Qxf3 $18) 14... Nxd2 15. Kxd2 cxd4 16. fxg4) 13... cxd4 14. fxg4 {Hoping for g5.} ({Much worse is} 14. cxd5 d3 $11) 14... O-O 15. Qf3 {Threatens to win with Qxf6.} dxe3 16. Bc1 Qe5 $1 17. Be2 d4 (17... f5 $1 $11) 18. O-O $14 Nc5 19. Rd1 (19. Qd5 $16 Qxd5 20. cxd5) 19... Rfd8 20. Bd3 Rd6 21. Qf5 Qxf5 22. gxf5 g6 ({Black should try} 22... b3 $11) 23. Kf1 b6 (23... gxf5 $11 24. Bxf5 Re8) 24. Ke2 (24. Bb1 $16 Rdd8 25. b3) 24... Nb3 $2 {[%mdl 8192]} ({Black should play} 24... gxf5 $1 $14 25. Bxf5 Re8) 25. Rb1 $2 ({Worse is} 25. axb3 Rxa1 26. Be4 gxf5 $14) ({Better is} 25. Bxe3 $18 Nxa1 26. Bf4) 25... Rxa2 26. Be4 $1 gxf5 27. Bxf5 (27. Bc2 $1 $16 {[%cal Rc2b3]} Nxc1+ 28. Rdxc1) 27... Rf6 28. g4 h5 (28... Rh6 $14) 29. h3 $16 {[%cal Bh2h3,Bh3g4][%mdl 32]} hxg4 (29... h4 $142 30. Kf3 Rc6) 30. hxg4 $18 Rh6 31. Kf3 $1 Rh2 {[#]} 32. Rd3 $2 (32. Kg3 $1 $18 {[%cal Rg3h2]} Re2 33. Rd3 Nxc1 34. Rxc1) 32... e2 $1 $14 {[%cal Re2e1]} 33. Bf4 Rxb2 $1 34. Bxh2 (34. Re1 $5 {[%cal Rf4h2]} Rh3+ 35. Kf2 Rxd3 36. Bxd3 $16) 34... Rxb1 35. Bg3 ({Reject} 35. Kxe2 Nc1+ 36. Kd2 Nxd3 $17) 35... Nc1 $2 {[%mdl 8192] [#]} (35... f6 $11) 36. Re3 $1 $18 {[%cal Re3e8] Black must now prevent Re8+.White is clearly winning.} dxe3 (36... Rb2 $142) 37. Bxb1 b3 38. Kxe3 Na2 39. Be1 {Precision: White = 31%, Black = 23%.} 1-0

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Socko, Monika"]
[Black "Smirnov, Anton"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2458"]
[BlackElo "2523"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,80,-20,-20,-14,-35,-29,-23,0,-6,-9,-2,13,0,6,-13,0,-16,2,0,31,-19,16,-9,15,0,0,0,35,25,25,25,56,13,13,13,5,0,0,0,5,-79,-77,-87,-87,-96,-54,-48,-52,-56,-30,-34,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Be3 Be6 9. Nbd2 Ne7 10. Rfd1 Ng6 {C68: Ruy Lopez: Exchange Variation, sidelines} 11. Nc4 Bxc4 12. Qxc4 Qe7 13. Bd4 O-O-O 14. Re1 {[#] LiveBook: 6 Games} Rd7 $146 ({Predecessor:} 14... Rhe8 15. a4 Qd7 16. h3 Re7 17. Rad1 Qe8 18. Bc3 {½-½ (38) Socko,B (2627)-Sasikiran,K (2684) Warsaw 2008}) 15. Rab1 Rhd8 16. a4 Qf7 (16... c5 {keeps more tension.} 17. Be3 Re8 18. Qc3 b6 19. g3 Kb7) 17. Qxf7 Rxf7 18. g3 b5 19. b3 Rfd7 20. Re2 Bb4 21. Bb2 Re8 22. Kg2 Kb7 23. h4 h5 24. Nd4 Ne5 25. Nf5 g6 26. Ne3 Re6 27. axb5 axb5 28. Rd1 Rde7 29. c4 bxc4 30. bxc4 Bc5 31. Bd4 Bxd4 32. Rxd4 Nf7 33. Nd1 (33. Rb2+ $11 Kc8 34. f3) 33... c5 $17 34. Rd5 Rxe4 35. Rc2 c6 36. Rb2+ Kc7 37. Rxc5 R7e5 38. Nc3 Rxc5 (38... Re1 $5 {[%cal Re5c5]} 39. Nb5+ Kb6 40. Rxe5 Nxe5 41. Nd6+ Kc5 $15) 39. Nxe4 Rxc4 40. Nxf6 Kd6 {Precision: White = 34%, Black = 34%.} 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Romanishin, Oleg M"]
[Black "Havelka, Josef"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2440"]
[BlackElo "2349"]
[Annotator "TA"]
[PlyCount "180"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,180,0,0,-4,34,34,34,45,32,16,45,46,48,54,41,33,44,63,37,41,34,34,37,37,44,36,126,106,137,132,122,67,127,118,156,167,241,234,250,269,256,97,269,247,239,152,141,141,131,52,52,52,52,52,52,0,0,0,52,52,52,52,52,52,52,0,0,0,0,0,0,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,176,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,18,60,67,67,67,67,67,0,0,0,8,8,8,0,0,0,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,8,8,0,8,0,8,8,8,8,8,8,8,8,8,8,8,8,8]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 a6 5. g3 b5 6. cxd5 cxd5 7. Bg2 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} e6 8. O-O Bb7 9. Bg5 Nbd7 10. Ne5 {[%cal Bf3e5,Be5d3,Bd3c5][%mdl 32]} Be7 {LiveBook: 3 Games} 11. Nd3 Ne4 $146 ({Predecessor:} 11... Rc8 12. Rc1 O-O 13. b4 Bc6 14. Nc5 a5 {1-0 (24) Romanishin,O (2546)-Moncelli,G (2147) Bratto 2007}) 12. Bxe7 Qxe7 13. Rc1 Nd6 14. Nc5 {next e4 is good for White.} O-O 15. e4 dxe4 16. Nxb7 ({Much weaker is} 16. N3xe4 Nxc5 17. dxc5 Nxe4 $15) 16... Nxb7 17. Nxe4 Rac8 18. Rxc8 Rxc8 19. d5 exd5 20. Qxd5 Rc7 21. Re1 h6 22. Qd2 Nf6 ({Black should play} 22... Qd8 $14) 23. h4 $16 {[%cal Bh2h4,Bh4h5,Bh5g6][%mdl 32]} ({Resist} 23. Nxf6+ Qxf6 24. Re8+ Kh7 $14) 23... Nc5 {[%cal Rc5e4]} 24. Nxf6+ Qxf6 25. Re8+ Kh7 {[#]} 26. h5 $1 g5 {[#]} 27. hxg6+ $1 fxg6 (27... Kxg6 $142 28. Bd5 Re7 29. Rg8+ Kh7) 28. Qd5 $18 {[%csl Ge8][%cal Rd5g8]} h5 29. b4 Nd7 30. Qg8+ ({Don't play} 30. Rc8 Ra7 $18) 30... Kh6 31. Re6 Qg7 32. Qxg7+ Kxg7 33. Rxa6 {[%mdl 4096] Endgame KRB-KRN} Ne5 34. Re6 (34. Be4 $16) 34... Rc1+ $14 35. Bf1 $1 Nf3+ $1 36. Kg2 Ne1+ $1 37. Kg1 Nf3+ 38. Kg2 Ne1+ $1 39. Kh3 Nf3 {White must now prevent ...Ng5+.} 40. Re7+ Kf6 41. Re3 Nd4 42. Rd3 ({Better is} 42. Bd3 $14) 42... Rxf1 $11 {KRN-KR} 43. Kg2 Rb1 44. Rxd4 {KR-KR} Ke5 45. Rh4 Rb2 46. a3 Rb3 47. g4 hxg4 48. Rxg4 Rxa3 49. Rg5+ Kf4 50. Rxb5 Rb3 51. Rb8 g5 52. b5 Kf5 53. b6 {Threatens to win with b7.} Kg6 $2 (53... Kf6 $11 {and Black stays safe.} 54. b7 Kg7) 54. f3 $2 ({White should try} 54. b7 $18 Kg7 55. Kf1) 54... Kg7 55. Kg3 Rb4 56. Kf2 {And now Ke3 would win.} Rb3 57. Ke2 Kh7 $1 58. Rb7+ Kg6 59. Rb8 Kg7 60. b7 Kh7 61. Kd2 {Strongly threatening Kc2.} Kg7 62. Kc2 (62. f4 $5 gxf4 63. Kd1 $11) 62... Rb6 63. Kc3 {Hoping for Kc4.} Rb1 64. Kc4 Rc1+ 65. Kd5 Rd1+ 66. Ke6 {Threatening mate with Rg8+!} Rb1 67. Kf5 Rb5+ $1 68. Kg4 $1 {f4 is the strong threat.} Kh7 $1 69. Rf8 ({White must play} 69. f4 $14 gxf4 70. Kxf4) 69... Rxb7 {The position is equal.} 70. Rf5 Rb4+ 71. Kxg5 Kg7 72. f4 Rb6 73. Rd5 Kf7 74. Rd7+ Kf8 75. f5 Ra6 76. Rh7 Kg8 77. Rd7 Kf8 78. Rd4 Kg7 79. Rb4 Kf7 80. Rb5 Ra7 81. Rb6 {Black should prevent Rf6+.} Kg7 82. Rg6+ Kf8 83. Rh6 Kg8 84. Kg6 Rg7+ 85. Kf6 Rf7+ 86. Ke6 {White threatens Rh8+! and mate.} Ra7 {aiming for ...Ra6+.} 87. Rh1 Ra6+ 88. Ke7 Ra7+ 89. Kf6 Ra6+ 90. Kg5 $1 Rb6 {Precision: White = 71%, Black = 67%.} 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Das, Arghyadip"]
[Black "Kanarek, Marcel"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "2435"]
[BlackElo "2508"]
[Annotator "TA"]
[PlyCount "141"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,141,31,30,0,0,0,0,-21,-16,-16,0,-15,-17,-35,0,14,70,64,70,-42,-10,-39,-24,-24,-16,-65,-59,-54,-48,-76,-76,-76,-76,-76,-76,-76,-76,-76,-76,-76,-75,-90,-59,-90,-90,-110,-110,-110,-90,-110,-90,-110,-110,-110,-110,-110,-90,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-110,-10,-10,-10,-10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 {Golod,V} c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Bb7 9. Be2 {B45: Sicilian Four Knights} c5 10. O-O Qc7 11. Nd6+ Bxd6 12. exd6 Qc6 {LiveBook: 57 Games} 13. Bf3 c4 {[#]} 14. Qe2 $146 ({Predecessor:} 14. Bxd5 Qxd5 15. Qxd5 Bxd5 16. f3 f6 {0-1 (50) Mitkov,N (2529)-Hernandez,G (2546) Merida 2002 CBM 093 [Golod,V]}) 14... Qxd6 15. Rd1 Rc8 16. b3 Qc5 {Hoping for ...Nc3.} 17. Bxd5 Bxd5 18. Be3 Qe7 19. Bxa7 Qg5 (19... d6 $11) 20. f3 $14 O-O {[%cal Bh8f8,Bf8c8,Bc8c4][%mdl 32]} 21. Rd4 ({Better is} 21. b4 $1 $14) 21... Qf6 {Threatens to win with ...Rc7.} 22. Rad1 {[%cal Rb3c4]} Ra8 23. Bc5 Rfc8 24. Bd6 {[%cal Rb3c4]} Rxa2 25. bxc4 {[#]} Ra1 $1 $36 {[%mdl 2560] Black has good play.} 26. Be5 (26. Rxa1 Qxd4+) 26... Rxd1+ 27. Rxd1 Bxc4 28. Qxc4 Rxc4 29. Bxf6 gxf6 30. Rxd7 Rxc2 $17 {[%mdl 4096] Endgame KR-KR} 31. h3 f5 {[%cal Bf6f5,Bf5f4][%mdl 32]} 32. Kh2 Rc4 33. Kg3 f4+ 34. Kh2 Kg7 35. Ra7 Rc1 36. Rb7 Kg6 37. Ra7 e5 38. Ra6+ f6 39. Rb6 Kg5 40. Rb7 h5 41. Rg7+ Kh6 42. Re7 Re1 43. Re8 Kg7 44. Re7+ Kg6 45. Re8 Ra1 46. Rg8+ {[#]} Kh7 $1 {[%cal Rh7g8]} 47. Re8 Kg7 48. Re7+ Kg6 49. Re8 Ra5 50. Rg8+ {[#]} Kh7 $1 {[%cal Rh7g8]} 51. Re8 Kg7 52. Re7+ Kg6 53. Re8 f5 (53... Ra7 $17 54. h4 Kg7) 54. Rf8 $11 {The position is equal.} Ra1 55. h4 Rf1 56. Re8 Kf6 57. Rf8+ $1 Ke6 {...e4 is the strong threat.} 58. Re8+ $1 Kd6 59. Rd8+ $1 Ke6 60. Re8+ $1 Kd6 61. Rd8+ $1 Ke7 62. Rh8 e4 63. fxe4 fxe4 64. Rxh5 Kf6 65. Rh8 $1 Kf7 {aiming for ...e3.} 66. Rh7+ Kg6 67. Re7 e3 {And now ...Kh5 would win.} 68. g3 Rf2+ 69. Kg1 fxg3 {( -> ...e2)} 70. Rxe3 Rf4 71. Rxg3+ {Precision: White = 69%, Black = 55%.} 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Sieciechowicz, Marcin"]
[Black "Bernadskiy, Vitaliy"]
[Result "0-1"]
[ECO "E46"]
[WhiteElo "2410"]
[BlackElo "2586"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,96,-10,-6,0,-7,-11,-8,0,-10,8,-18,0,0,0,-14,0,0,23,23,30,0,0,-24,-41,-44,-54,-68,0,0,0,0,0,-71,-54,-71,-25,-77,0,0,0,-4,-7,-18,0,-8,-12,-24,0,0,0,0,0,0,0,-6,-8,-8,-6,-25,0,0,0,-423,-426,-672,-681,-820,-803,-790,-781,-733,-683,-683,-488,-620,-485,-435,-271,-430,-429,-508,-489]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nge2 d5 6. a3 Bd6 7. Ng3 b6 {E46: Nimzo-Indian: Rubinstein: 4 e3 0-0 5 Ne2 without early Bd3} 8. cxd5 exd5 9. Bd3 {LiveBook: 10 Games} Ba6 $146 {The position is equal.} ({Predecessor:} 9... c5 10. O-O Bg4 11. f3 Be6 12. f4 Bg4 13. Qc2 Nc6 14. dxc5 bxc5 15. h3 {0-1 (42) Brown,M (2497)-Sarana,A (2577) chess.com INT 2018}) 10. O-O Bxd3 11. Qxd3 Nc6 12. b4 Re8 13. f3 Bxg3 14. hxg3 h5 15. Bd2 Qd6 16. Rac1 a6 ({And not} 16... Qxg3 17. Nb5 $16) 17. Ne2 Ne7 18. Qc2 Rac8 19. e4 dxe4 20. fxe4 {[#] Black must now prevent e5.} Qe6 21. Nc3 Rcd8 ({Black should play} 21... Ng6 $15) 22. d5 $11 Qg4 23. Bf4 c6 {[%cal Rc6d5]} 24. dxc6 (24. Qf2 $11) 24... Nxc6 $17 25. Bc7 Rc8 26. Bxb6 (26. Rxf6 $11 gxf6 27. Nd5) 26... Qxg3 (26... Ne5 $17 27. Rce1 Rc4) 27. Qf2 $36 {[%mdl 2048] White has the initiative.} Qg6 {Threatening ...Ne5.} 28. Qf5 $1 Ne7 29. Qxg6 Nxg6 30. Bd4 Ng4 31. Bc5 N4e5 {With the idea ...Nd3.} 32. Rcd1 Nc4 33. Rd7 f6 34. Nd5 {Strongly threatening Rxf6!} Rc6 35. Rc7 Rxc7 36. Nxc7 Rxe4 37. a4 $1 Nd2 38. Rd1 Re2 39. Be3 $2 {[%mdl 8192]} (39. Bf2 $11 {and White has nothing to worry.}) 39... Ne4 $19 ({Worse is} 39... Rxe3 40. Rxd2 Ne5 41. Nxa6 $11) 40. Rd8+ (40. Nd5 $142 Nh4 41. Rd3) 40... Kh7 {( -> ...Re1+)} 41. Bd4 Nf4 42. Nd5 Rxg2+ 43. Kf1 Nd2+ 44. Ke1 Nd3+ 45. Kd1 Nc4 {[%csl Gc4][%cal Rg2d2]} 46. Bc3 Ncb2+ 47. Bxb2 Nxb2+ (47... Rxb2 $2 {[#]} 48. Nxf6+ $1 {[%mdl 512]} gxf6 49. Rxd3 $19) 48. Kc1 Nxa4 {Precision: White = 47%, Black = 52%.} 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Percivaldi, Martin"]
[Black "Mehar, Chinna Reddy CH"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2393"]
[BlackElo "2286"]
[Annotator "NA"]
[PlyCount "86"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5 Nbd7 6. Bf4 Nh5 7. Bd2 Nhf6 8. Qc2 g6 9. h3 Bg7 10. Bf4 O-O 11. e3 b6 12. b4 bxc5 13. bxc5 Ne4 14. Nxe4 dxe4 15. Nd2 Qa5 16. Be2 e5 17. dxe5 Nxe5 18. O-O Nd3 19. Bd6 Bxa1 20. Rxa1 Re8 21. Bxd3 exd3 22. Qxd3 Qa4 23. Nc4 Bf5 24. Qc3 Rad8 25. Nb6 Qh4 26. Rd1 Be4 27. Qc4 Qg5 28. Qf1 a5 29. Kh1 Bf5 30. Rd4 Re4 31. Rxe4 Bxe4 32. f3 Bf5 33. Qf2 Be6 34. e4 Qc1+ 35. Kh2 Qb1 36. a4 h6 37. Qd4 Qb4 38. Qe5 Qd2 39. h4 Qf2 40. Qg3 Qe3 41. Qe5 Qf2 42. Qg3 Qe3 43. Qe5 Kh7 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Krysztofiak, Marcin"]
[Black "Baskin, Robert"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2384"]
[BlackElo "2339"]
[Annotator "NA"]
[PlyCount "15"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. e3 b6 5. Bd3 Bb7 6. O-O Nbd7 7. cxd5 exd5 8. Nc3 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Zylka, Stanislaw"]
[Black "Mulet, Piotr"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "2380"]
[BlackElo "2202"]
[Annotator "NA"]
[PlyCount "84"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 Bc5 5. Nf3 d6 6. O-O O-O 7. e3 Bg4 8. h3 Bh5 9. g4 Bg6 10. d4 Bb6 11. a3 a5 12. d5 Nb8 13. Nh4 Ne4 14. Nxg6 Nxc3 15. Qc2 fxg6 16. Qxc3 a4 17. Kh2 Nd7 18. f4 Qe7 19. b4 axb3 20. Qxb3 g5 21. f5 e4 22. Ra2 Qe5+ 23. Kh1 Nc5 24. Qb1 Nd3 25. Bd2 Qg3 26. a4 Nf2+ 27. Rxf2 Qxf2 28. Qb3 Bc5 29. a5 g6 30. Qc3 Qe2 31. Bxe4 Rae8 32. Bg2 Bxe3 33. Bxe3 Qxe3 34. Qxe3 Rxe3 35. fxg6 hxg6 36. Rb2 Ra8 37. Rxb7 Rxa5 38. Rxc7 Ra1+ 39. Kh2 Ra2 40. c5 Ree2 41. cxd6 Rxg2+ 42. Kh1 Rgd2 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Karpus, Michal"]
[Black "Sliwicka, Alicja"]
[Result "1/2-1/2"]
[ECO "C95"]
[WhiteElo "2364"]
[BlackElo "2277"]
[Annotator "NA"]
[PlyCount "88"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. a4 c5 16. d5 c4 17. Bg5 Nc5 18. Qd2 Be7 19. Bh6 Nfd7 20. a5 Bc8 21. Nh2 f6 22. Rf1 Nb7 23. f4 exf4 24. Qxf4 Ne5 25. Qf2 Nxa5 26. Nf5 Bf8 27. Bxf8 Rxf8 28. Nxd6 Qxd6 29. Rxa5 Bd7 30. Qd4 Rae8 31. Raa1 Bc8 32. Nf3 Rf7 33. b3 Rc7 34. b4 Rf7 35. Qc5 Qd8 36. Nd4 Rc7 37. Qb6 Rf7 38. Rxa6 Bxa6 39. Qxa6 Qa8 40. Qxb5 Rb8 41. Qc5 Rc8 42. Qd6 Rd8 43. Qb6 Rb8 44. Qe6 Re8 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Lewtak, Damian"]
[Black "Wieczorek, Oskar"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2358"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,104,0,-13,34,33,29,18,20,14,20,-29,-10,-8,208,197,220,196,225,156,162,162,200,115,107,109,99,102,123,125,135,28,43,37,67,-100,-86,-100,-98,-180,-139,-212,-164,-162,-146,-157,-141,-184,-180,-169,0,-72,-78,-81,85,-613,-599,-568,-74,-89,-74,-79,-59,-301,-300,-551,-525,-525,-512,-504,-497,-487,-464,-640,-633,-614,-609,-901,-841,-1343,-1337,-1232,-1134,-1447,-1402,-1312,-1257,-5247,-5239,-5355,-5339,-2212,-3045,-5411,-5355]} 1. d4 Nf6 2. Bf4 g6 3. c3 Bg7 4. h3 O-O 5. Nf3 d6 6. Nbd2 Nc6 {A48: Königsindisch (ohne c2-c4)} (6... Nbd7 7. Bh2 b6 8. e4 e5 9. Bd3 Bb7 10. O-O Nh5 11. Re1 Bh6 12. Nc4 {½-½ (12) Berkes,F (2645)-Vovk,A (2641) Hungary 2017}) 7. e4 {LiveBook: 4 Partien} Nh5 8. Bg5 h6 $146 {Weiß steht etwas besser.} ({Vorgänger:} 8... Qe8 9. Bb5 a6 10. Ba4 e5 11. dxe5 dxe5 12. Be3 Nf4 13. O-O b5 14. Bb3 {1-0 (29) Bojarinov,V (2312)-Pokhlebkin,V (2122) Nizhnij Novgorod 2008}) 9. g4 {[%cal Bg2g4,Bg4g5,Bg5h6][%mdl 32]} Nf6 10. Be3 e5 11. d5 Ne7 12. g5 Nh7 $2 (12... hxg5 $11 13. Nxg5 c6) 13. gxh6 $18 Bf6 14. h4 Kh8 15. Bh3 Bxh3 16. Rxh3 c6 17. c4 ({Günstiger ist} 17. dxc6 $18 Nxc6 18. Qb3) 17... cxd5 $16 18. cxd5 Ng8 19. Qb3 Qd7 20. Rg3 Be7 21. Nc4 ({Besser ist} 21. h5 $16) 21... Ngf6 22. Qd3 Nh5 23. Nfxe5 $2 (23. Rg1 $14) 23... dxe5 $17 24. Nxe5 Qe8 25. Bd4 (25. Rg1 $17) 25... Kg8 $1 $19 26. Rg4 (26. O-O-O $17 {ist eine bessere Verteidigung.}) 26... Bf6 27. Nxg6 fxg6 28. e5 Kh8 ({Viel schwächer wäre} 28... Bxe5 $6 29. Rxg6+ Ng7 30. Bxe5 $11) 29. Re4 Bd8 30. O-O-O Nf4 $2 (30... Rf5 $19 {Weiss muss nun ...Sf4 beachten.} 31. Kb1 Nf8 32. e6+ Bf6) 31. e6+ (31. Qb3 $1 $11) 31... Kg8 $17 32. Qb3 Bxh4 $2 (32... Be7 $17 {bleibt auf Kurs. ...Td8 ist eine echte Drohung.} 33. Bc3 Rd8 34. Qxb7 Nh5 35. Qxa7 Rf5) 33. d6 $2 {[%mdl 8192]} (33. Bc3 $16) 33... Qc6+ $19 34. Qc2 {[#] Schwarz sollte Dxc6 verhindern.} Qxc2+ $2 (34... Nd3+ $1 $19 {ist viel giftiger.} 35. Rxd3 Qxe4) 35. Kxc2 $17 Nxe6 36. Rxe6 {[#]} Bf6 $1 37. Bc5 $2 (37. Kb3 $15) 37... Kf7 $19 38. Re3 $2 (38. Rde1 Rfc8 39. b4) 38... Rac8 {Schwarz steht klar auf Gewinn.} 39. b4 b6 40. Ra3 a5 41. d7 Rc7 42. Kb3 bxc5 43. b5 c4+ {[%cal Bc5c4,Bc4c3,Bc3c2][%mdl 32]} 44. Ka4 c3 45. b6 Rc5 46. Rb3 Rb8 47. b7 Nf8 48. Rb6 Bd8 49. Rb3 c2 50. Rc1 Nxd7 51. h7 Bf6 52. Rb5 Bg5 {Precision: Weiß = 24%, Schwarz = 50%.} 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Deszczynski, Adam"]
[Black "Al Huwar, Jasem"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2345"]
[BlackElo "2259"]
[Annotator "NA"]
[PlyCount "65"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. Nf3 c6 2. g3 d5 3. Bg2 Bg4 4. d3 Nf6 5. O-O e6 6. Nbd2 Be7 7. e4 O-O 8. Re1 Qc7 9. b3 a5 10. a3 a4 11. b4 c5 12. b5 dxe4 13. Nxe4 Nxe4 14. Rxe4 Bf5 15. Re1 Bf6 16. Bf4 Qa5 17. Ne5 Bxe5 18. Bxe5 Ra7 19. Rb1 b6 20. g4 Bg6 21. h4 h6 22. h5 Bh7 23. Qc1 Nd7 24. Bb2 Re8 25. Bc6 f6 26. Qf4 Kf7 27. Re2 Re7 28. Rbe1 Nf8 29. Be5 Rad7 30. Bd6 e5 31. Qc4+ Ne6 32. Bxd7 Rxd7 33. Bxe5 1-0

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Oglaza, Oskar"]
[Black "Spitzl, Vinzent"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2344"]
[BlackElo "2241"]
[Annotator "NA"]
[PlyCount "75"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. Nf3 Nf6 5. Qb3 c5 6. dxc5 Na6 7. cxd5 Qxd5 8. Qxb4 Nxb4 9. Nxd5 Nfxd5 10. Kd1 Bd7 11. Bd2 a5 12. Ne5 Rc8 13. Nxd7 Kxd7 14. a3 Na6 15. e4 Nf6 16. Bxa6 bxa6 17. f3 Rxc5 18. Bc3 e5 19. Ke2 Ke6 20. Rhd1 Rhc8 21. Rd3 Ne8 22. Rad1 R8c6 23. f4 exf4 24. Rd8 Nf6 25. Kf3 g5 26. h4 h6 27. Bd4 Rc4 28. hxg5 hxg5 29. Rh1 Rxd4 30. Rxd4 Rc2 31. Rhd1 Rxb2 32. R1d2 Rxd2 33. Rxd2 Ke5 34. Rd8 g4+ 35. Ke2 Kxe4 36. Rf8 f3+ 37. Kf2 fxg2 38. Rxf7 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Warakomska, Anna"]
[Black "Chomczyk, Marek"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2342"]
[BlackElo "2247"]
[Annotator "NA"]
[PlyCount "72"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h6 5. g4 Be4 6. f3 Bh7 7. e6 fxe6 8. Bd3 e5 9. Bxh7 Rxh7 10. dxe5 e6 11. Ne2 Qc7 12. Qd3 Rh8 13. Bf4 Qf7 14. Nd2 Nd7 15. h5 Ne7 16. Bg3 O-O-O 17. O-O-O c5 18. f4 c4 19. Qe3 Nc6 20. Nf3 Bc5 21. Nfd4 Bb6 22. f5 Nc5 23. Qf4 Rhf8 24. Nxc6 bxc6 25. Nd4 Kb7 26. Rhf1 Rde8 27. Bh2 c3 28. b4 Bd8 29. f6 Ne4 30. Rfe1 gxf6 31. Rxe4 f5 32. Nxf5 exf5 33. e6 Bg5 34. exf7 Rxe4 35. Qxg5 hxg5 36. gxf5 Rxf7 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Paszewski, Mateusz"]
[Black "Zaleski, Lukasz"]
[Result "0-1"]
[ECO "C03"]
[WhiteElo "2322"]
[BlackElo "2029"]
[Annotator "ChessBase"]
[PlyCount "90"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 h6 4. Ngf3 Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 Nc6 8. O-O g5 9. h3 h5 10. Nb3 c4 11. Nxg5 cxd3 12. Qxd3 Nb6 13. f4 Nc4 14. Nc5 Bxc5 15. dxc5 Qe7 16. b3 Qxc5+ 17. Kh1 Nb6 18. a4 Ne7 19. Ba3 Qc6 20. Bxe7 Kxe7 21. Qg3 h4 22. Qg4 a5 23. Nf3 Bd7 24. Qg5+ Kf8 25. Nxh4 Rg8 26. Qh6+ Ke7 27. Qf6+ Ke8 28. Nf3 Qc5 29. Qh4 Nc8 30. Ng5 Ne7 31. Rf3 Nf5 32. Qe1 Bc6 33. Kh2 d4 34. cxd4 Qd5 35. Ra2 Ke7 36. Rd2 Rad8 37. Rfd3 Rh8 38. Qf2 b6 39. Nf3 Rdg8 40. Ng5 Bb7 41. Rc3 Rc8 42. Rdc2 Rc6 43. Rxc6 Bxc6 44. Rc4 Ne3 45. Rxc6 Ng4+ 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Zakrzewski, Marek"]
[Black "Heberla, Bartlomiej"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2309"]
[BlackElo "2563"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,90,32,30,47,48,45,26,64,29,27,27,25,19,23,-12,0,0,0,0,18,0,23,14,40,-24,-4,-10,-8,-20,-34,-96,-100,-129,-100,-88,-90,-104,-103,-156,-149,-135,-68,-141,-150,-153,-147,-113,-114,-453,-453,-452,-452,-429,-441,-414,-414,-481,-435,-1462,-1462,-1304,-1297,-1134,-1093,-29996,-29997,-29997,-29998,-29998,-29999]} 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 5. Be2 Nf6 6. O-O O-O 7. a4 Qc7 8. h3 Nbd7 9. Be3 b6 10. Nd2 Bb7 11. f4 a6 12. e5 {LiveBook: 9 Partien. B08: Pirc-Ufimzew-Verteidigung} Nd5 13. Nxd5 cxd5 14. Nf3 {Weiß steht etwas besser.} e6 {[%cal Rd6e5]} 15. Bd3 f6 {[%cal Rd6e5]} 16. exd6 Qxd6 {[#]} 17. a5 $146 ({Vorgänger:} 17. c3 f5 18. Ne5 Nf6 19. h4 a5 {1-0 (41) Bachmann,A (2629)-Foisor,C (2390) Caleta 2015}) 17... bxa5 18. Rxa5 Qb6 19. Ra3 a5 20. Qe2 Bc6 21. b3 Rfe8 22. c4 Qb4 23. Ra2 (23. Rfa1 $14) 23... e5 $36 {[%mdl 2048] Schwarz steht aktiver.} 24. dxe5 fxe5 25. cxd5 (25. fxe5 {looks sharper.} Nxe5 26. Nxe5 Rxe5 27. Qd2 Ree8 28. Qxb4 axb4 29. Rxa8 Rxa8 30. Bc5) 25... Bxd5 26. Bc4 (26. Ra4 $15 Qxb3 27. Bc2) 26... Bxc4 $17 27. Qxc4+ Qxc4 28. bxc4 exf4 29. Bxf4 Re4 30. Nd2 (30. Ng5 $142 Rxc4 31. Ne6) 30... Re2 31. Rf3 Bd4+ (31... a4 $17 32. Bd6 {[#]} a3 $1 {[%mdl 512]} 33. Rfxa3 Rxa3 34. Bxa3 Bc3) 32. Kh2 ({Lieber} 32. Kf1 $15 Rae8 33. Bg3) 32... Nc5 33. Rfa3 Rf8 34. Bg3 a4 35. Nf3 $2 {[%mdl 8192] [#]} (35. h4 $17 {nur so!}) 35... Rxf3 $1 $19 {[%mdl 512]} 36. Rxa4 (36. Rxf3 Rxa2) 36... Rxa2 37. Rxa2 Rf1 38. h4 Ne4 39. Ra8+ Kg7 40. Rc8 (40. Rd8 $142 Bc5 41. Be5+ Kf7 42. g3) 40... Nxg3 41. Kxg3 Be5+ 42. Kh3 h5 {[%cal Rf1h1]} 43. g4 Rf2 {[%csl Ge5][%cal Rf2h2] Schwarz setzt Matt.} 44. gxh5 gxh5 {[%csl Ge5][%cal Rf2h2]} 45. Rg8+ Kxg8 {Precision: Weiß = 32%, Schwarz = 64%.} 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Kucza, Karol"]
[Black "Kubicka, Anna"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "2308"]
[BlackElo "2172"]
[Annotator "NA"]
[PlyCount "53"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 g6 8. Qd2 Bg7 9. O-O-O Qc7 10. Bb3 b5 11. Bh6 O-O 12. Bxg7 Kxg7 13. h4 Nc5 14. h5 Nxb3+ 15. axb3 e5 16. Qg5 Ng8 17. Nd5 Qb7 18. Nf5+ Bxf5 19. exf5 f6 20. hxg6 h6 21. Qd2 a5 22. Rh3 a4 23. b4 Rfc8 24. Rdh1 Qc6 25. Kb1 Ra7 26. Rxh6 Kf8 27. Rh8 1-0

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Krstulovic, Alex"]
[Black "Chyzy, Jakub"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2305"]
[BlackElo "2100"]
[Annotator "ChessBase"]
[PlyCount "93"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 Bxc3 7. Bxc3 Ne4 8. Rc1 d6 9. Bg2 O-O 10. O-O Nxc3 11. Rxc3 e5 12. d5 Nb8 13. Qc2 a5 14. Nd2 Na6 15. a3 Bd7 16. b3 f5 17. Qb1 c5 18. dxc6 Bxc6 19. b4 Bxg2 20. Kxg2 axb4 21. axb4 b5 22. Qb3 Kh8 23. Rb1 Rab8 24. Qc2 bxc4 25. b5 Nc7 26. Rxc4 Nxb5 27. Qb2 Rb7 28. Rb4 Rfb8 29. Qa2 Qe8 30. Qd5 Qg8 31. Qc6 Nd4 32. Qxb7 Rxb7 33. Rxb7 Nc6 34. R1b6 h6 35. e4 Qa2 36. Rxc6 Qxd2 37. Rc8+ Kh7 38. Rcc7 Qg5 39. Rxg7+ Qxg7 40. Rxg7+ Kxg7 41. exf5 Kf6 42. g4 d5 43. f3 h5 44. h3 Kg5 45. Kf2 Kf6 46. Ke3 Kg5 {Ke4} 47. Kd3 1-0

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Miroshnichenko, Pavel"]
[Black "Sanz Wawer, Daniel"]
[Result "0-1"]
[ECO "A61"]
[WhiteElo "2304"]
[BlackElo "2233"]
[Annotator "NA"]
[PlyCount "88"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. h3 Bg7 8. Bf4 {A61: Modern Benoni: Nf3 without early e4} O-O 9. e3 Na6 (9... Qe7 10. Nd2 Nh5 11. Bh2 f5 12. Be2 f4 13. O-O fxe3 14. Nde4 exf2+ 15. Kh1 Bxc3 16. Nxc3 {0-1 (49) Xiong,J (2665)-Caruana,F (2804) Saint Louis 2018}) 10. Nd2 Nc7 11. Nc4 b5 12. Nxd6 b4 13. Na4 Ncxd5 $146 ({Predecessor:} 13... Nfxd5 14. Bh2 Qe7 15. Nxc8 Rfxc8 16. Bxc7 Nxc7 {1-0 (72) Laznicka,V (2679)-Goletiani,R (2325) Arlington 2014}) 14. Bh2 Qe7 15. Qb3 Rd8 16. Nxc8 Raxc8 17. Ba6 Rc6 18. Bc4 Nb6 19. Nxb6 Rxb6 20. Rd1 Rxd1+ 21. Qxd1 Qe4 22. Be2 Qxg2 23. Bf3 Qg5 24. Bf4 Qf5 25. Bg2 h5 26. O-O Ne4 27. b3 Re6 28. Qd8+ Kh7 29. Qd7 a5 30. Bxe4 Qxe4 31. Qxf7 Re7 32. Qc4 Qxc4 33. bxc4 Re4 34. Rc1 a4 35. f3 Re6 36. Rb1 b3 37. a3 Rb6 38. Kf1 b2 39. Ke2 Rb3 40. e4 Bd4 41. e5 Rxa3 42. e6 Kg8 43. Kd2 Ra1 $19 (43... Rxf3 $142 44. Kc2 Rxf4) 44. Kc2 a3 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Szostko, Jakub"]
[Black "Balasubramaniam, H."]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "2295"]
[BlackElo "2219"]
[Annotator "NA"]
[PlyCount "81"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Ne7 6. O-O Nbc6 7. c3 g6 8. Bg5 Bg7 9. Nxc6 bxc6 10. Qe2 d6 11. Nd2 O-O 12. Nf3 h6 13. Be3 e5 14. Rad1 Bg4 15. h3 Bxf3 16. Qxf3 Qc7 17. Bc4 Kh7 18. Qe2 f5 19. f3 a5 20. Rd2 f4 21. Bf2 g5 22. Rfd1 Rad8 23. Rd3 c5 24. Qc2 Kh8 25. Qa4 h5 26. Be6 Rf6 27. Qc4 Nc8 28. Bxc8 Rxc8 29. b4 cxb4 30. Qxc7 Rxc7 31. cxb4 axb4 32. Be1 Rc2 33. Bxb4 Rxa2 34. Rxd6 Rxd6 35. Bxd6 Ra8 36. Be7 g4 37. hxg4 hxg4 38. Rd8+ Rxd8 39. Bxd8 gxf3 40. gxf3 Kg8 41. Kg2 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Pacan Milej, Kosma"]
[Black "Murdzia, Piotr"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2282"]
[BlackElo "2410"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,87,21,12,8,3,0,0,-1,0,0,0,0,0,0,0,0,10,0,47,0,5,25,34,34,34,33,36,38,44,45,112,40,111,34,56,43,63,49,94,58,57,10,60,62,86,81,74,87,175,157,169,185,419,416,786,766,818,809,823,810,929,918,1186,1147]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 O-O 8. O-O d5 9. exd5 cxd5 10. h3 {C47: Scotch Four Knights and Four Knights with 4 g3} (10. Bg5 c6 11. Qf3 Bd6 12. Rae1 Rb8 13. Nd1 h6 14. Bxf6 Qxf6 15. Qxf6 gxf6 16. b3 Be6 17. Ne3 Bb4 18. Rd1 Rfe8 19. Nf5 Bxf5 20. Bxf5 Re5 21. f4 {½-½ (30) Wei,Y (2734)-Yu,Y (2759) Hangzhou 2018}) 10... c6 11. Qf3 Bd6 12. Bf4 Rb8 13. b3 Be6 {LiveBook: 19 Games} 14. Bxd6 Qxd6 15. Qg3 Qxg3 16. fxg3 Rfe8 $146 ({Predecessor:} 16... c5 17. Rad1 Rfc8 {0-1 (44) Meissner,F (2298)-Van Wessel,R (2398) Netherlands 2016}) 17. g4 h6 18. Na4 Nd7 19. Rad1 Kf8 20. Rf4 Ke7 21. Ba6 c5 22. c4 d4 23. Bb5 {Threatens to win with Bxd7.} Rec8 24. Re1 Nf8 25. Nb2 Rb6 26. Nd3 a6 27. Ba4 Ng6 (27... Rb7 $14) 28. Rfe4 (28. Rf5 $1 $16) 28... Rd6 (28... a5 $14) 29. g3 ({Better is} 29. Rf1 $16) 29... Rdd8 30. h4 {[%cal Bh3h4,Bh4h5][%mdl 32]} Rc7 31. Kf2 Kd6 32. h5 Nf8 $1 33. Re5 Nh7 34. b4 {[%cal Rb4c5]} cxb4 35. c5+ Ke7 {[#]} 36. Nf4 $1 $36 {[%cal Re5e6][%mdl 2048] Keeping Black busy.} ({Much weaker is} 36. Nxb4 Nf6 $17) 36... Nf6 (36... Nf8 $16) 37. Rxe6+ $18 fxe6 38. Nxe6 Nxg4+ $2 {[#]} (38... Rcc8) 39. Kf3 $1 Ne3 (39... Rxc5 $142 40. Nxc5+ Ne3 41. Nxa6 Ra8) 40. Nxc7 {White is clearly winning.} Kf6 41. Nxa6 Ra8 42. Bb5 Ke5 43. Nxb4 Ra3 44. Nc2 {Precision: White = 59%, Black = 32%.} 1-0

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Gurvich, Vitaly"]
[Black "Rakesh, Kumar Jena"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2274"]
[BlackElo "2385"]
[Annotator "NA"]
[PlyCount "66"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 e6 2. c4 b6 3. a3 Bb7 4. Nc3 Nf6 5. Nf3 d5 6. Bg5 Be7 7. e3 O-O 8. Be2 h6 9. Bh4 Nbd7 10. O-O Ne4 11. Bxe7 Qxe7 12. Rc1 c5 13. cxd5 exd5 14. dxc5 Nxc3 15. Rxc3 bxc5 16. Qc2 Rac8 17. Qd1 Rfd8 18. Bd3 Qf6 19. Qe2 Nf8 20. Rfc1 Ne6 21. Bb1 Re8 22. Qc2 g6 23. Qd2 Rcd8 24. h3 d4 25. exd4 Nf4 26. Re3 cxd4 27. Rxe8+ Rxe8 28. Re1 Rxe1+ 29. Nxe1 Nxg2 30. Nd3 Nh4 31. Qe2 Qg5+ 32. Kf1 Qg2+ 33. Ke1 Qg1+ 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Baum, Jonasz"]
[Black "Nurkiewicz, Maciej"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "2272"]
[BlackElo "2368"]
[Annotator "NA"]
[PlyCount "96"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Na3 Nh6 {C02: French: Advance Variation} (6... cxd4 7. cxd4 Bd7 8. Nc2 Rc8 9. Be2 Nb4 10. Ne3 Bb5 11. O-O Bxe2 12. Qxe2 Nc6 13. b3 Bb4 14. Bb2 Qa6 15. Qxa6 bxa6 16. Rfc1 {½-½ (27) Tukhaev,A (2575)-Atalik,S (2545) Mumbai 2018}) 7. Nc2 Be7 8. Bd3 Nf5 9. O-O $146 ({Predecessor:} 9. h4 cxd4 10. cxd4 Nb4 11. Nxb4 Bxb4+ 12. Kf1 Bd7 13. g4 Nxd4 14. Be3 Bc5 {0-1 (40) Brennenstuhl,O (2048)-Kramer,C (1969) Baden 2011}) 9... cxd4 10. Bxf5 exf5 11. Ncxd4 O-O 12. Qc2 g6 13. Be3 Qc7 14. Rfe1 Be6 15. Rad1 Rfe8 16. Qc1 Nxe5 17. Nxe5 Qxe5 18. Bf4 Qf6 19. Be5 Qg5 20. Bf4 Qf6 21. Be5 Qg5 22. Bf4 Qf6 23. Nf3 Bf8 24. Be5 Qd8 25. Bd4 f6 26. Re2 Bf7 27. Rxe8 Bxe8 28. Qf4 Bf7 29. Re1 a6 30. h4 Rc8 31. h5 Rc6 32. hxg6 hxg6 33. Qg3 Qd6 34. Qh4 Bg7 35. b4 b6 36. a4 Rc8 37. Qh2 Qxh2+ 38. Kxh2 Be8 39. Re6 Bxa4 40. Rxb6 Bb5 41. Rd6 Kf7 42. Nd2 f4 43. Rxd5 $15 (43. Nb3 $11) 43... Bf8 44. Ne4 Bc6 45. Nd6+ Ke6 46. Nxc8 Bxd5 47. Nb6 Bb3 48. Kg1 Bd6 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Wyczling, Bartosz"]
[Black "Rozentalis, Eduardas"]
[Result "0-1"]
[ECO "E35"]
[WhiteElo "2262"]
[BlackElo "2513"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,94,45,34,49,43,43,37,41,27,43,40,50,0,27,18,53,25,26,10,20,8,18,0,9,-5,11,0,4,6,4,2,11,4,8,8,12,0,8,0,0,0,0,0,0,0,0,0,6,-27,-31,-140,-141,-201,-198,-202,-191,-254,-260,-321,-320,-543,-556,-588,-519,-572,-564,-1509,-1420,-8684,-8645,-7069,-5516,-7691,-8226]} 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5 6. Bg5 h6 7. Bh4 c5 8. dxc5 {E35: Nimzoindisch (4.Dc2)} O-O (8... g5 9. Bg3 Ne4 10. e3 Qa5 11. Rc1 Nc6 12. Bd3 Nxg3 13. hxg3 d4 14. exd4 Nxd4 15. Qd1 Bxc5 16. Nf3 Bg4 17. Kf1 Nxf3 18. gxf3 {0-1 (55) Vallejo Pons,F (2707)-So,W (2780) Leon 2018}) 9. e3 Be6 10. Bd3 Nbd7 11. a3 Bxc5 12. Nf3 {LiveBook: 8 Partien} Be7 13. O-O Rc8 {[#]} 14. Rad1 $146 ({Vorgänger:} 14. Nd4 Nc5 {0-1 (40) Gordon,S (2516)-Movsesian,S (2677) Caleta 2014}) 14... a6 15. Bf5 b5 16. Nd4 Qb6 17. Qb1 Rfe8 (17... Bxa3 $5 18. Ncxb5 (18. bxa3 Rxc3 19. Qb2 Rfc8 $15) 18... Bb4 $11) 18. Nce2 Bf8 19. Rc1 Bxf5 20. Qxf5 {[#] Droht Txc8 und aus.} Rc4 21. Bxf6 Nxf6 22. Nf4 Qc7 23. Rcd1 Rd8 24. h4 (24. g3 {seems wilder.} Bd6 25. b3 Rc5 26. Nfe2 Qb7 27. Rc1) 24... Qc8 25. Qxc8 Rdxc8 26. Rd3 h5 27. Rfd1 g6 28. Kf1 Rc1 29. Nfe2 Rxd1+ 30. Rxd1 Bd6 31. Rc1 Rc4 32. Rc2 Ne4 33. Ke1 Kf8 34. f3 Ng3 35. Rxc4 (35. Nc3 {looks sharper.} Nf5 36. Nxf5 gxf5 37. Kd2 Ke8 38. Nxd5 Rxh4 39. Kd3) 35... dxc4 36. Kf2 ({Lieber} 36. Nc3 $15) 36... Nxe2 $17 37. Nxe2 {[%mdl 4096] Endspiel KL-KS} (37. Kxe2 $17 {war angesagt.} Bg3 38. a4) 37... Be5 $19 38. Nc3 Ke7 39. Nd1 (39. Ke2 $142) 39... Kd6 40. f4 Bf6 41. g3 $2 (41. Kf3 {war einen Versuch wert.} Bxh4 42. e4) 41... Kc5 {Schwarz steht klar auf Gewinn.} 42. e4 {Jetzt e5 und Weiss darf weiter klammern.} Bd4+ 43. Ke2 b4 44. Kd2 {[#]} Bxb2 $1 {[%mdl 512]} 45. Nxb2 c3+ 46. Kc2 cxb2 47. axb4+ Kxb4 {Precision: Weiß = 28%, Schwarz = 67%.} 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Bus, Konrad"]
[Black "Hassan, Abdullah"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2257"]
[BlackElo "2335"]
[Annotator "NA"]
[PlyCount "14"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 g6 5. Bf4 Bg7 6. e3 O-O 7. Nc3 a6 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Zochowski, Kacper"]
[Black "Chylewski, Patryk"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2250"]
[BlackElo "2335"]
[Annotator "NA"]
[PlyCount "97"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 c5 10. d3 Bd6 {A13: English Opening: 1...e6} (10... Be7 11. Na3 Qb6 12. e4 O-O 13. b3 Ng4 14. Bb2 Bf6 15. h3 Bxb2 16. Qxb2 Ngf6 17. axb5 axb5 18. b4 cxb4 19. Qxb4 {1-0 (37) Fridman,D (2633)-Ladva,O (2522) Katowice 2017}) 11. Nc3 b4 12. Nb1 a5 $146 ({Predecessor:} 12... Rc8 13. Nbd2 O-O 14. b3 Qe7 15. Bb2 Rfd8 16. Nc4 Bc7 17. Rad1 Nb6 18. Na5 Ba8 19. Ne5 {½-½ (19) Vasiliev,I (2300)-Veingold,A (2475) Tallinn 1998}) 13. Nbd2 Nb6 14. b3 Qe7 15. Bb2 O-O 16. Ne1 Rfc8 17. Bxb7 Qxb7 18. Bxf6 gxf6 19. Nc4 Be5 20. Nxb6 Qxb6 21. Rd1 f5 22. Nf3 Bc3 23. Nd2 Qc6 24. Nc4 Ra6 25. f4 Rd8 26. Rf3 Raa8 27. Rc1 Ra7 28. Qd1 Qc7 29. Qf1 Qe7 30. Qg2 Kh8 31. Rff1 Qd7 32. Qf3 Qd4+ 33. Kh1 Qd5 34. Rcd1 Qxf3+ 35. Rxf3 Kg7 36. Kg2 Bf6 37. Rff1 Kg6 38. Kf3 Kg7 39. Rc1 Rd4 40. Ne3 Be7 41. Rc4 Rd8 42. Rd1 Rdd7 43. h3 h5 44. Rg1 Bd6 $18 45. g4 hxg4+ 46. hxg4 fxg4+ 47. Nxg4 Kf8 48. Nf6 Rdc7 49. e4 1-0

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Dubinski, Mateusz"]
[Black "Thybo, Jesper Sondergaard"]
[Result "0-1"]
[ECO "A62"]
[WhiteElo "2245"]
[BlackElo "2497"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,86,27,53,6,32,46,29,31,31,37,33,13,19,-115,27,14,30,-68,-78,-56,-68,-97,-45,-47,-55,-50,-68,-63,-71,-59,-47,-89,-94,-192,-74,-292,-260,-354,-355,-366,-302,-332,-192,-521,-511,-508,-476,-506,-504,-506,-502,-469,-461,-634,-635,-603,-602,-583,-447,-682,-679,-29982,-29983,-29983,-29984,-29984,-29985]} 1. d4 Nf6 2. g3 c5 3. d5 e6 4. c4 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Re8 10. Bf4 h6 {A62: Modern Benoni: Fianchetto Variation without early ...Nbd7} (10... Bf5 11. Bg5 h6 12. Bxf6 Bxf6 13. Nd2 Bc8 14. Nc4 Bxc3 15. bxc3 b5 16. Nd2 Nd7 17. Re1 a5 18. Qc2 {½-½ (29) Tomashevsky,E (2702)-Svidler,P (2763) Palma de Mallorca 2017}) 11. Qc1 g5 {LiveBook: 9 Games} 12. Be3 Bf5 {The position is equal.} 13. h4 g4 14. Nd2 {And now Bf4 would win.} Rxe3 15. fxe3 {[%cal Bf2e3,Be3e4][%mdl 32]} Bg6 16. Nc4 Nbd7 $146 ({Predecessor:} 16... Qe7 17. e4 Nh5 18. Qe1 {0-1 (42) Berry,N (2283)-Ris,R (2419) England 2018}) 17. Qe1 (17. Nxd6 $11 Qb8 18. Nf5 Bxf5 19. Rxf5 Qxg3 20. Qe1 Qxe3+ 21. Qf2 Qxf2+ 22. Kxf2) 17... Qe7 (17... Nb6 $17 18. Nd2 Nh5) 18. e4 $1 $11 Nh5 {With the idea ...Nb6.} 19. e3 (19. Nb5 $11) 19... Ne5 $15 20. Nxe5 Bxe5 21. Rf4 Nxf4 (21... Qd7 $17) 22. exf4 Bd4+ 23. Kh2 Re8 24. Qe2 h5 25. Re1 a6 26. a4 {[#]} f5 $1 27. Rf1 (27. Qc2 $17) 27... Bh7 (27... fxe4 $19 {and Black stays clearly on top. White must now prevent ...e3.} 28. f5 Be5) 28. Qc4 $2 (28. e5 $17 {might work better.}) 28... fxe4 $19 29. f5 Be5 30. f6 Bxf6 {Threatens to win with ...Be5.} 31. Nxe4 Bxh4 ({Don't do} 31... Bxb2 32. Ng5) (31... Bxe4 $142 32. Bxe4 Kg7) 32. gxh4 $2 (32. Re1 {is tougher.}) 32... Bxe4 33. Bxe4 Qxe4 34. Qxe4 Rxe4 {[%mdl 4096] Endgame KR-KR} 35. Rf6 Rxa4 36. Rxd6 Rb4 37. Rh6 Rxb2+ 38. Kg3 c4 {[%cal Bc5c4,Bc4c3,Bc3c2][%mdl 32]} 39. Rxh5 b5 40. Kxg4 (40. Rg5+ $142 Kh7 41. Kxg4) 40... c3 41. Rh6 c2 {Black mates.} 42. Rc6 {[#]} Rb4+ $1 43. Kf5 Rc4 {Precision: White = 30%, Black = 58%.} 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Dzierzak, Radoslaw"]
[Black "Bartel, Michal"]
[Result "1-0"]
[ECO "C97"]
[WhiteElo "2244"]
[BlackElo "2349"]
[Annotator "NA"]
[PlyCount "81"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Bd7 13. b3 Nb7 14. Nbd2 Ne8 15. Nf1 Nd8 16. g4 g6 17. Bh6 Ng7 18. Ng3 f6 19. Kh2 Nf7 20. Be3 c4 21. b4 a5 22. a4 axb4 23. cxb4 bxa4 24. Bxa4 Rfb8 25. Bxd7 Qxd7 26. Rxa8 Rxa8 27. Qc2 Qb5 28. Rb1 f5 29. gxf5 gxf5 30. exf5 Qxd5 31. Nd2 Rc8 32. b5 Nd8 33. Nde4 Ne8 34. Nh5 Qf7 35. f6 Qxh5 36. fxe7 Nb7 37. Qd2 Qf7 38. Ng5 Qxe7 39. Qd5+ Kh8 40. Nf7+ Kg7 41. Qxe5+ 1-0

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Polatel, Ali"]
[Black "Kosakowski, Jakub"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2238"]
[BlackElo "2318"]
[Annotator "ChessBase"]
[PlyCount "156"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 a5 5. Bg2 O-O 6. e3 d5 7. Qc2 b6 8. Ne2 Ba6 9. b3 Nbd7 10. O-O Be7 11. Nbc3 Rc8 12. cxd5 exd5 13. Rfe1 c6 14. Rad1 Re8 15. Bc1 Bd6 16. Bb2 Qe7 17. Nf4 Bxf4 18. gxf4 Ne4 19. Na4 b5 20. Nc3 f5 21. Rc1 Kh8 22. f3 Nd6 23. Qf2 Qf7 24. Bf1 Bb7 25. Rcd1 Re6 26. Bd3 Rce8 27. Re2 R8e7 28. Rde1 Qe8 29. Nd1 Nf6 30. Ba3 b4 31. Bc1 h6 32. Nb2 Qh5 33. Na4 Re8 34. Nc5 R6e7 35. Rc2 Bc8 36. Be2 g5 37. Nd3 Bb7 38. fxg5 hxg5 39. Ne5 Rh7 40. Kh1 Rg8 41. Rg1 g4 42. e4 g3 43. Rxg3 Rxg3 44. Qxg3 Rg7 45. Qf4 Kg8 46. Qh6 dxe4 47. Qxh5 Nxh5 48. fxe4 c5 49. dxc5 Bxe4+ 50. Bf3 Bxc2 51. cxd6 Nf6 52. Bh6 Ra7 53. Bg5 Nd7 54. Be3 Ra6 55. Nxd7 Rxd6 56. Nb6 Rd3 57. Bd5+ Kg7 58. Bf4 Bb1 59. Bc4 Rd1+ 60. Kg2 Bxa2 61. Na4 Kg6 62. Nc5 Rb1 63. Be6 a4 64. bxa4 Bxe6 65. Nxe6 b3 66. Be5 b2 67. Kh3 Kf7 68. Ng5+ Ke7 69. Kh4 Rh1 70. Bxb2 Rxh2+ 71. Nh3 Rxb2 72. Kg5 Ra2 73. Kxf5 Rxa4 74. Nf4 Ra5+ 75. Ke4 Kd6 76. Nd3 Ra4+ 77. Kf5 Rd4 78. Nf4 Rxf4+ {Ke4 Ke5+} 1/2-1/2

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Kowalczyk, Rafal"]
[Black "Kowalski, Igor"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2209"]
[BlackElo "2323"]
[Annotator "NA"]
[PlyCount "55"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Nb3 Bb4+ 7. Bd2 Nc6 8. Bxb4 Nxb4 9. Nbxd4 Nf6 10. a3 Na6 11. g3 e5 12. Nb5 Qxd1+ 13. Rxd1 Bg4 14. Be2 O-O 15. h3 Bf5 16. c4 e4 17. Nfd4 Bd7 18. g4 Rfd8 19. b4 b6 20. O-O h5 21. f3 hxg4 22. hxg4 exf3 23. Bxf3 Rac8 24. g5 Ng4 25. Bd5 Be8 26. Rde1 Nc7 27. Nxc7 Rxc7 28. Rf4 1-0

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Czopor, Maciej"]
[Black "Siekanski, Janusz"]
[Result "1-0"]
[ECO "B81"]
[WhiteElo "2198"]
[BlackElo "2269"]
[Annotator "NA"]
[PlyCount "79"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 Be7 9. h4 O-O 10. Qh5 a6 11. O-O-O Nxd4 12. Bxd4 b5 13. Bd3 Ne5 14. f4 Nxd3+ 15. Rxd3 b4 16. Ne2 Qa5 17. Kb1 e5 18. Be3 Be6 19. b3 d5 20. Qf3 Rad8 21. Qf2 dxe4 22. Rxd8 Bxd8 23. f5 Bd5 24. h5 Qb5 25. f6 Bb6 26. Rd1 Bxe3 27. Qxe3 Be6 28. fxg7 Rc8 29. Ng3 Kxg7 30. h6+ Kf8 31. Qxe4 Qc6 32. Qxb4+ Kg8 33. Qd2 Kf8 34. Qb4+ Kg8 35. Rd2 Qf3 36. Qc5 f6 37. Qe7 Bf7 38. Rd8+ Rxd8 39. Qxd8+ Be8 40. Qxe8# {a5 Qf7+} 1-0

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Sliwicki, Damian"]
[Black "Ostrovskiy, Andrey"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "2193"]
[BlackElo "2431"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,88,-103,-106,-101,-112,-103,-99,-105,-114,-66,-141,-144,-165,-149,-148,-150,-147,-132,-140,-133,-174,-174,-204,-161,-201,-194,-189,-179,-206,-189,-193,-121,-126,-109,-107,-110,-137,-143,-158,-152,-327,-325,-346,-339,-326,-319,-302,-319,-319,-319,-319,-319,-330,-319,-353,-353,-493,-474,-546,-497,-674,-672,-679,-658,-634,-603,-729,-687,-730,-730,-744,-731]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O d6 6. c3 Bg4 7. Qb3 Bxf3 8. Bxf7+ Kf8 9. Bxg8 Rxg8 10. gxf3 {LiveBook: 10 Games} Bb6 {C44: Ponziani Opening and Scotch Gambit} 11. Qe6 Qf6 12. Qxf6+ gxf6+ {Black is better.} 13. Kh1 Ne5 14. Bh6+ $146 (14. a4 $15 Nc6 15. Bf4) ({Predecessor:} 14. f4 Nd3 15. c4 Re8 16. f3 f5 17. Nd2 Kf7 18. a3 Rg7 19. exf5 Re2 20. Ne4 Rgg2 21. Rd1 Rxh2+ 22. Kg1 Reg2+ 23. Kf1 Rh1+ {0-1 (23) Zhu,H (2293)-Roussel Roozmon,T (2463) Montreal 2016}) 14... Kf7 $17 15. cxd4 Nxf3 16. Nd2 Nxd2 17. Bxd2 Bxd4 18. Rac1 Rac8 19. Rc4 c5 20. a4 Ke6 21. b3 Rg4 22. f3 Rg7 23. Bf4 Rcg8 {[#] ( -> ...Rg1+)} 24. Bg3 d5 ({Better is} 24... f5 $19 25. exf5+ Kxf5) 25. exd5+ Kxd5 26. Rd1 Ke6 27. b4 b6 28. bxc5 bxc5 29. Rcxd4 $2 (29. Rc2 $17 {might work better.}) 29... cxd4 $19 30. Rxd4 $17 {[%mdl 4096] Endgame KRR-KRB} Rd7 31. Re4+ Kf5 32. Rf4+ {[#]} Kg6 $1 33. Kg2 Rd2+ 34. Kh3 Rd5 35. Rg4+ Rg5 36. Rb4 Rc8 37. f4 Ra5 {Black is clearly winning.} 38. Kg4 h5+ 39. Kh4 Rc2 40. Rb8 Ra2 41. Rg8+ Kf7 42. Rh8 R2xa4 43. Kh3 Rb5 44. Bf2 a5 {Precision: White = 24%, Black = 82%.} 0-1

[Event "XVIII Najdorf Open 2018"]
[Site "Warsaw"]
[Date "2018.07.14"]
[Round "7"]
[White "Dwilewicz, Katarzyna"]
[Black "Walter, Szymon"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2009"]
[BlackElo "2296"]
[Annotator "NA"]
[PlyCount "46"]
[EventDate "2018.07.08"]
[EventCountry "POL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Qe7 5. Bg2 Nc6 6. Nf3 Bxd2+ 7. Nbxd2 d6 8. O-O O-O 9. e4 e5 10. d5 Nb8 11. b4 a5 12. a3 Na6 13. Rb1 c6 14. Qb3 Bd7 15. Rfc1 Rfc8 16. Ne1 cxd5 17. cxd5 axb4 18. axb4 Nc7 19. Nef3 Nb5 20. Bf1 Qd8 21. Qb2 g6 22. Kg2 Kg7 23. Bd3 h5 1/2-1/2

