[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "1"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,114,-9,-4,-9,-6,-19,-4,-8,-16,-26,-32,-41,-32,-29,-16,-18,0,-6,-11,-10,-7,-7,-7,-7,-7,-7,0,0,0,0,0,-17,-23,-18,6,-14,-5,-9,-9,-14,24,37,24,34,19,22,32,10,10,10,30,-3,10,8,10,-39,-43,-46,-46,-46,-47,-52,-51,-69,-1,-355,-345,-369,-362,-326,-52,-529,-345,-333,-326,-277,-162,-29980,-29981,-29981,-29982,-29982,-29983,-29975,-2794,-939,-461,-356,0,-910,-910,-910,-842,-761,-759,-686,-495,-29975,-29975]} 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. Bb2 Nc6 8. cxd5 Nxd5 9. Na3 b6 10. Nc4 {A14: English Opening: 1...e6 with b3 by White} Ba6 11. Rc1 Rc8 12. a3 $146 {The position is equal.} ({Predecessor:} 12. d3 Bf6 13. Qd2 Bxb2 14. Qxb2 Qf6 15. Qd2 Rfd8 16. Ng5 Qe7 17. f4 h6 {½-½ (57) Minasian,A (2540)-Krogius,N (2480) Cappelle-la-Grande 1995}) 12... Bf6 13. Bxf6 Qxf6 14. d3 Rfd8 15. Qd2 Qe7 16. Qb2 Qf6 17. Nce5 Nde7 18. Rc2 Nd4 19. Nxd4 Qxe5 20. Nf3 Qxb2 21. Rxb2 Bb7 22. Rc1 Bd5 23. Kf1 f6 24. Bh3 Kf7 25. Nd2 Bb7 26. Rbc2 h5 27. b4 cxb4 $1 28. axb4 b5 (28... Rxc2 {seems wilder.} 29. Rxc2 Rd7 30. b5 g5 31. f3 Nd5) 29. Nb3 Rxc2 30. Rxc2 Bd5 31. Nc5 {Black must now prevent e4.} f5 $1 32. f3 g5 33. e4 Bc6 34. Ra2 g4 35. Bg2 Rd4 36. Rxa7 Rxb4 37. Ra2 Rb1+ 38. Kf2 b4 {[%cal Bb5b4,Bb4b3][%mdl 32] Hoping for ...b3.} 39. exf5 exf5 {Strongly threatening ...b3.} 40. fxg4 hxg4 (40... Bxg2 $15 41. Kxg2 fxg4 42. Rf2+ Kg6) 41. Ke3 $2 {[%mdl 8192]} (41. Bxc6 $11 {and White is okay.} Nxc6 42. Ra6) 41... b3 $19 42. Rf2 Bxg2 43. Rxg2 {[%mdl 4096] Endgame KRN-KRN} Nc6 $2 ({Better is} 43... b2 $19 44. Kd4 {[#]} f4 $1 {[%mdl 512]}) 44. Kf4 $2 {[%mdl 8192]} (44. Na4 $15) 44... b2 {...Rf1+ is the strong threat.} 45. Kg5 Nd4 46. Na4 Ne6+ (46... Nf3+ $142 47. Kf4 Ne1 {[%mdl 64] Double Attack}) 47. Kh5 $2 {[#]} (47. Kh6 $19) 47... Ra1 ({Inferior is} 47... Ng7+ 48. Kh6 $11) 48. Rxb2 Rxa4 {KRN-KR} 49. Rb7+ Kf6 50. Rh7 Ra2 (50... Ng7+ $142 51. Kh4 Kg6 52. Rxg7+ Kxg7 53. Kg5 Ra5 54. d4 Kf7 55. Kf4 Ke6 56. Kg5 Ra3 57. Kg6 Rd3 58. d5+ Rxd5 59. Kg5 Ke5 60. Kg6 Rd7 61. Kh5 Rg7 62. Kh6 Kf6 63. h4 gxh3 64. g4 Rxg4 65. Kh5 h2 66. Kh6 h1=Q#) 51. Rh6+ Kf7 (51... Ke5 $142 52. Kg6 Ra8) 52. Rh7+ Kf6 $2 (52... Ng7+ 53. Kg5 Ra5) 53. Rh6+ Ke5 54. Kg6 Nd4 {( -> ...Ra6+)} 55. Rh8 Ra6+ 56. Kf7 Nf3 57. h4 (57. Kg7 $19) 57... gxh3 {Accuracy: White = 45%, Black = 47%.} 0-1

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "2"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,92,7,0,19,8,12,16,15,0,0,-8,13,19,16,14,12,12,14,10,18,0,0,0,9,8,14,0,0,0,0,0,2,2,31,26,26,26,27,19,20,20,20,20,37,22,24,27,27,15,55,55,78,78,78,78,78,78,78,78,78,78,78,78,78,20,20,0,78,0,20,0,78]} 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. d4 e6 5. Nbd2 Nbd7 6. Bd3 Bd6 7. e4 e5 8. cxd5 cxd5 9. exd5 O-O 10. O-O exd4 11. Ne4 Nxe4 12. Bxe4 Nf6 {D30: Queen's Gambit Declined: Systems without Nc3} 13. Qxd4 (13. Bg5 Re8 {½-½ (13) Potkin,V (2599)-Dubov,D (2659) Sochi 2015}) 13... Nxe4 14. Qxe4 Re8 15. Qd4 Bf5 16. Bg5 Qa5 17. Bd2 Qb6 18. Bc3 {[%csl Gc3][%cal Rd4g7] [#]} Qxd4 19. Nxd4 Bd7 20. Rfe1 f6 $146 21. Ne6 Kf7 22. Nd4 Rac8 23. Rxe8 Rxe8 24. Re1 Rxe1+ 25. Bxe1 $11 {[%mdl 4096] Endgame KBB-KBN} Be5 26. Bc3 Bxd4 27. Bxd4 {KB-KB} a5 28. a3 a4 29. f3 Bb5 30. Kf2 Bc4 31. d6 Ke6 32. Bc5 b6 33. Bb4 Bb5 34. h4 f5 35. Ke3 h5 36. Kf4 g6 37. Kg5 Kf7 38. Bc3 Bc6 39. Bd4 b5 40. Bc5 Bd7 41. Bb4 Bc6 42. Kf4 Ke6 43. Ke3 (43. Bd2 $16) 43... Kd5 44. Kf4 (44. Kf2 $11) 44... Ke6 $16 45. Ke3 ({White should play} 45. Ba5 $16) 45... Kd5 $11 46. Kf4 (46. Kd3 $11) 46... Ke6 {Accuracy: White = 42%, Black = 67%.} 1/2-1/2

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "3"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "0-1"]
[ECO "A18"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "ChessBase"]
[PlyCount "76"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. c4 {[%emt 0:12:07]} Nf6 {[%emt 0:12:07]} 2. Nc3 {[%emt 0:00:09]} e6 {[%emt 0:00:11]} 3. e4 {[%emt 0:00:09]} d5 {[%emt 0:00:09]} 4. e5 {[%emt 0:00:09]} d4 {[%emt 0:00:09]} 5. exf6 {[%emt 0:00:09]} dxc3 {[%emt 0:00:09]} 6. bxc3 {[%emt 0:00:09]} Qxf6 {[%emt 0:00:10]} 7. f4 {[%emt 0:00:09]} c5 {[%emt 0:00:19]} 8. g3 {[%emt 0:00:15]} Bd7 {[%emt 0:00:10]} 9. Bg2 {[%emt 0:00:10]} Bc6 {[%emt 0:00:08]} 10. Nf3 {[%emt 0:00:09]} Be7 {[%emt 0:00:22]} 11. O-O {[%emt 0:00:13]} O-O {[%emt 0:00:10]} 12. d4 {[%emt 0:00:12]} Rd8 {[%emt 0:00:16]} 13. f5 {[%emt 0:00:26]} exf5 {[%emt 0:01:24]} 14. Bg5 {[%emt 0:00:17]} Qd6 {[%emt 0:00:10]} 15. Bf4 {[%emt 0:00:10]} Qf6 {[%emt 0:00:25]} 16. Bc7 {[%emt 0:00:46]} Rc8 {[%emt 0:00:21]} 17. Be5 {[%emt 0:00:14]} Qg6 {[%emt 0:00:10]} 18. d5 {[%emt 0:00:10]} Be8 {[%emt 0:00:10]} 19. Rb1 {[%emt 0:01:07]} Nd7 {[%emt 0:00:27]} 20. Rxb7 {[%emt 0:00:13]} Qa6 {[%emt 0:00:12]} 21. Qb3 {[%emt 0:00:25]} Bd8 {[%emt 0:00:10]} 22. Rb5 {[%emt 0:00:30]} Nxe5 {[%emt 0:00:15]} 23. Nxe5 {[%emt 0:00:09]} Bxb5 {[%emt 0:00:09]} 24. cxb5 {[%emt 0:00:09]} c4 {[%emt 0:00:09]} 25. Nxc4 {[%emt 0:00:14]} Qf6 {[%emt 0:00:11]} 26. d6 {[%emt 0:00:09]} Rab8 {[%emt 0:00:09]} 27. Bd5 {[%emt 0:00:13]} Rc5 {[%emt 0:00:11]} 28. Ne3 {[%emt 0:00:22]} Rxc3 {[%emt 0:00:12]} 29. Bxf7+ {[%emt 0:00:13]} Kh8 {[%emt 0:00:10]} 30. Qd5 {[%emt 0:00:09]} Bb6 {[%emt 0:00:13]} 31. Rxf5 {[%emt 0:00:10]} Qh6 {[%emt 0:00:09]} 32. Kg2 {[%emt 0:00:10]} Qxe3 {[%emt 0:00:10]} 33. d7 {[%emt 0:00:10]} Rc5 {[%emt 0:00:17]} 34. Be8 {[%emt 0:00:09]} Rxe8 {[%emt 0:00:18]} 35. Qf7 {[%emt 0:00:10]} Rg8 {[%emt 0:00:16]} 36. Rf4 {[%emt 0:00:10]} Qe2+ {[%emt 0:00:10]} 37. Rf2 {[%emt 0:00:10]} Qe4+ {[%emt 0:00:09]} 38. Rf3 {[%emt 0:00:10]} Rc3 {[%emt 0:00:11]} 0-1

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "4"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "131"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,131,0,0,4,11,21,16,18,20,25,27,28,33,66,65,50,20,70,64,68,66,58,64,73,56,51,50,47,48,68,56,56,55,55,59,74,49,81,100,106,69,69,64,85,20,31,24,28,27,27,27,27,27,27,17,48,36,46,33,25,22,29,17,14,16,36,20,58,55,73,51,77,75,71,72,82,82,247,72,241,175,197,196,185,82,75,67,75,0,0,0,67,67,235,237,232,233,247,232,232,232,232,232,232,232,224,216,2037,783,6095,5137,29976,29977]} 1. c4 c6 2. Nf3 d5 3. d4 Nf6 4. e3 e6 5. Nbd2 Nbd7 6. Bd3 Bd6 7. e4 e5 8. cxd5 cxd5 9. exd5 O-O 10. O-O exd4 11. Nxd4 Nb6 {D30: Queen's Gambit Declined: Systems without Nc3} 12. Nf5 Bf4 $146 ({Predecessor:} 12... Bxf5 13. Bxf5 Nbxd5 14. Nf3 Bf4 15. Qb3 g6 16. Bd3 Bxc1 17. Raxc1 Qb6 18. Qxb6 Nxb6 19. Rc7 {½-½ (56) Certek,P (2249)-Kulistak,M (2130) Tatranske Zruby 2016}) 13. d6 Bxf5 {The position is equal.} 14. Bxf5 Qxd6 15. g3 Bxd2 16. Qxd2 Qc5 17. Qc2 Rac8 18. Qb1 {Threatens to win with Be3.} Rc6 19. Be3 Qb5 20. Qd3 Qxd3 21. Bxd3 Nbd5 22. Bd2 Rd8 23. Rfd1 Rcd6 {And now ...Nb6 would win.} 24. Bc2 Nb6 25. Bf4 Rxd1+ 26. Rxd1 Rxd1+ 27. Bxd1 $14 {[%mdl 4096] Endgame KBB-KNN} Nfd5 28. Be5 Nc8 29. Bf3 Nce7 30. Bd6 b6 31. Kf1 f6 32. Be2 (32. Ke2 $16) 32... Kf7 $11 33. Bc4 {Strongly threatening Bxe7.} Ke8 $1 34. Ke2 Kd7 35. Ba3 Kc6 36. Bd3 g6 37. Kd2 a5 38. Be4 {Bxe7 is the strong threat.} f5 39. Bf3 {aiming for Bxe7.} Kd7 40. Kd3 Nc7 41. b3 Nc6 42. Be2 Nb5 43. Bb2 Nd6 44. a3 Ne4 45. Ke3 Ne7 46. f3 Nd6 47. Kd4 Nc6+ 48. Kd5 Nd8 $2 (48... Ne8 $16) 49. a4 $2 (49. Be5 $18 {has better winning chances.} N8f7 50. Bf4) 49... Ne6 $2 (49... Nc6 $16) 50. Ke5 Nd8 51. Ba3 Nc6+ 52. Kd5 (52. Kf6 $1 $18 {is the precise move to win.}) 52... Ne7+ $16 {[#]} 53. Kd4 $1 Nc6+ 54. Kd5 (54. Ke3 $16) 54... Ne7+ $11 55. Kd4 ({White should play} 55. Ke5 $11 Ne8 56. Bb2) 55... Nc6+ $14 56. Ke3 Nb4 $2 {[#]} (56... Ke6 $14) 57. Bxb4 $1 $18 axb4 {KB-KN} 58. Kd4 Ke6 59. f4 h6 60. Bf3 g5 61. fxg5 hxg5 62. Bd5+ Kf6 63. h4 f4 $2 (63... gxh4 64. gxh4 f4) 64. hxg5+ Kxg5 65. Ke5 $1 {[%csl LRd6,LRf4][%mdl 64] Double Attack} Nc4+ 66. Bxc4 {Accuracy: White = 69%, Black = 40%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "5"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,71,8,6,27,-1,-1,-1,0,0,0,0,0,0,0,-57,-35,-33,16,15,27,23,29,35,25,17,23,7,0,-46,15,0,15,-39,0,0,0,0,0,0,265,267,293,164,311,304,301,291,271,199,362,247,400,226,1054,1054,986,968,6470,6124,29990,29991,29993,29994]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Ne4 6. Nf3 Bf5 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4)} 7. d3 (7. d4 {looks sharper.} Bb4 8. Qa4+ Nc6 9. Bb5 Qd7 10. Qb3) 7... Nxc3 8. bxc3 c5 {The position is equal.} 9. d4 c4 10. a4 Nc6 11. Be2 Be7 12. Ba3 $146 (12. O-O $11) ({Predecessor:} 12. O-O O-O 13. Ne1 Na5 14. Nc2 {0-1 (41) Aronian,L (2764)-Nakamura,H (2769) Stavanger 2018}) 12... Bxa3 $15 13. Rxa3 f6 14. Ra2 O-O 15. O-O Qa5 16. Qd2 Rae8 {[%cal Rf6e5]} 17. exf6 Rxf6 18. Bd1 Rfe6 {aiming for ...Bd3.} 19. Rb2 Qc7 (19... Bd3 $15 20. Re1 {[#]} Nxd4 $1 {[%mdl 512]} 21. Rxe6 Nxe6 22. Rxb7 Nc5) 20. Ng5 Rf6 21. Bh5 (21. Bc2 $11) 21... Rd8 22. Re1 h6 23. Nf3 g6 24. Qxh6 {And now Nh4 would win.} Rdf8 $2 {[%mdl 8192]} (24... Qg7 $1 $11 {and Black is okay.} 25. Qxg7+ Kxg7) 25. Qg5 $18 Be4 26. Nd2 (26. Nh4 $142) 26... Bf5 (26... Rxf2 {might work better.} 27. Bf3 (27. Nxe4 Rxb2 28. Qxg6+ Qg7 $16) (27. Rxe4 dxe4 28. Bxg6 Qe7 $14) 27... R8xf3) 27. Bf3 Qf7 28. Rb5 Rd6 29. g4 Be4 $2 (29... Be6 30. h3 b6) 30. Re3 a6 $2 (30... Nd8 {is a better defense.} 31. Qe5 (31. Nxe4 dxe4 32. Rf5 Ne6 $18) (31. Bxe4 Qxf2+ 32. Kh1 dxe4 $16) 31... Re6) 31. Rb6 (31. Nxe4 $142 dxe4 32. Rf5) 31... Qc7 $2 {[#]} (31... Bc2 32. a5 Rdd8) 32. Bxe4 $1 {[%mdl 512]} dxe4 33. Nxe4 Qxb6 34. Nxd6 Qb1+ 35. Kg2 Qc2 36. Nf5 {Accuracy: White = 59%, Black = 33%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "6"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "169"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,169,41,0,0,0,0,0,14,-16,-12,-33,-25,-43,-16,-16,0,-23,0,-6,0,12,2,9,5,15,13,-12,-12,-27,-14,-12,-12,-14,-16,-13,0,-18,0,0,9,24,9,0,0,0,0,0,0,8,41,34,48,45,54,37,59,18,22,-527,-526,-526,-520,-510,-489,-504,-473,-469,-193,-153,-137,-154,-65,-425,-240,-197,0,0,0,0,0,0,8,0,0,0,0,0,0,0,8,8,53,53,72,72,73,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,12,0,0,0,8,8,8,8,16,8,8,8,8,8,75,75,75,75,75,72,72,72,72,72,75,75,75,75,77,77,79,77,29988,29989,29990,29991,29992,29993,29993,29993]} 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 f5 7. d4 Nf6 8. dxe5 dxe5 {A25: English Opening vs King's Indian with ...Nc6 but without early d3} 9. Qxd8+ (9. Bxc6+ bxc6 10. Qxd8+ Kxd8 11. b3 c5 12. Bb2 Bb7 13. O-O-O+ Kc8 14. Rhf1 Bf3 15. Rd2 Rd8 16. Rxd8+ Kxd8 17. Ng1 Bc6 18. Nce2 Nd7 {½-½ (31) Petrosian,T (2657)-L'Ami,E (2605) Golden Sands 2012}) 9... Nxd8 10. e4 c6 {The position is equal.} 11. exf5 $146 ({Predecessor:} 11. O-O O-O 12. b3 Ne6 13. Be3 Rd8 14. exf5 gxf5 15. Rad1 Kf7 16. Bh3 Rxd1 17. Rxd1 {½-½ (32) Sypien,M (2283)-Almonti,A (2022) Kaunas 2011}) 11... Bxf5 12. h3 Ne6 13. Be3 Bd3 14. b3 O-O-O 15. Rd1 Bf8 16. Nc1 Bb4 17. Rxd3 Rxd3 18. Nxd3 Bxc3+ 19. Ke2 Nd4+ 20. Bxd4 (20. Kd1 {feels hotter.} Re8 21. g4 Kc7 22. Kc1 Ne6 23. Kc2) 20... Bxd4 21. Rd1 Kc7 22. Ne1 a5 23. Nc2 Bc5 24. a3 Ra8 25. h4 Ng4 26. Bh3 Nxf2 {[%mdl 64] Double Attack} 27. Rd7+ Kb6 28. Bg2 Ng4 $1 29. b4 axb4 30. axb4 {[#]} Bd4 $1 {[%mdl 512]} 31. c5+ (31. Nxd4 exd4) 31... Ka6 32. Be4 Rf8 33. Bd3+ Ka7 34. Nxd4 exd4 $14 {[%mdl 4096] Endgame KRB-KRN} 35. b5 cxb5 36. Be4 $2 {[%mdl 8192]} (36. c6 $11 {and White has nothing to worry.}) 36... Re8 $19 37. Rxb7+ Ka6 38. Rb6+ Ka5 39. Kf3 Ne5+ 40. Kf4 {Now Rd6 and White clings on.} Nc4 (40... Nd7 $142 41. Rd6 Nxc5) 41. Rb7 Rf8+ 42. Kg5 {[#]} Kb4 ({Black should try} 42... Rd8 $1 $17 43. Ra7+ Kb4) 43. Rc7 $2 {[%mdl 8192]} (43. Rd7 $1 $15) 43... Rd8 (43... Nd2 $142 44. Bg2 Rf2) 44. c6 Ne5 $2 (44... Re8 $19 45. Kf4 Nd6) 45. Re7 $11 Nxc6 $1 46. Bxc6 {KRB-KR} d3 47. Bf3 d2 48. Rxh7 Rd3 49. Be2 Rxg3+ 50. Kf4 Rd3 51. Bd1 Ka3 52. Ke4 Rd6 53. Ke3 b4 54. Rb7 Rd5 55. Ke2 ({Better is} 55. Rb6 $16 Kb2 56. Ke2 (56. Rxb4+ Kc1 $16)) 55... Rd4 56. Bc2 Rxh4 57. Kxd2 Kb2 58. Bxg6 {Hoping for Bf7.} Rh2+ 59. Ke3 b3 60. Bf7 Rh3+ 61. Kd4 Kc2 62. Bg6+ Kc1 63. Rf7 {aiming for Rf2.} Kb2 64. Be4 Ka3 65. Ra7+ Kb2 66. Bd3 Rh4+ 67. Ke3 Rh2 68. Rf7 {next Rc7 is good for White.} Kc3 69. Rc7+ Kb2 70. Bc4 {Rb7 is the strong threat.} Rc2 71. Kd4 {Black must now prevent Rg7.} Kc1 72. Rh7 Kb2 (72... Rd2+ $1 $11 {remains equal.} 73. Kc3 b2 74. Rh1+ Rd1 75. Rxd1+ {[%mdl 64] Overworked Piece} Kxd1 76. Kxb2) 73. Rh3 $16 Rd2+ 74. Kc5 Rg2 75. Kb4 (75. Rxb3+ Kc2 $18) 75... Kc1 76. Kc3 {White threatens Rh1+ and mate.} ({Weaker is} 76. Kxb3 Kd2 $18) ({Less strong is} 76. Rxb3 Rc2 $18) ({Not} 76. Bxb3 Kd2 $18) 76... Rc2+ 77. Kxb3 {Threatens to win with Rh1+.} Rb2+ 78. Kc3 {[%cal Rh3h1]} Rc2+ 79. Kd4 {Strongly threatening Bd3.} Rd2+ 80. Bd3 {And now Rh1+ would win.} Kb2 81. Rh8 Rf2 $2 {[%mdl 8192]} (81... Rg2 $16 82. Rb8+ Ka1 83. Rb1+ Ka2 84. Kc3 Ka3 85. Rb8 Rg4 86. Rb1 Rg2) 82. Rb8+ {White mates.} Kc1 83. Ke3 {[%csl Gd3][%cal Rb8b1]} Rb2 84. Rc8+ Kd1 85. Rg8 {Accuracy: White = 53%, Black = 48%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "7"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "0-1"]
[ECO "A18"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "158"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,158,24,14,17,19,14,10,11,0,14,0,3,13,11,8,16,7,9,16,31,20,51,49,75,60,86,73,82,69,70,61,69,60,74,43,66,73,58,68,61,52,56,57,71,49,102,91,129,78,81,76,63,83,91,47,95,95,97,78,124,62,111,78,81,69,87,71,97,102,102,102,106,110,135,135,164,135,135,102,102,102,135,-15,114,112,135,135,147,135,191,135,134,118,114,0,0,12,162,-357,-329,-450,-450,-450,-450,-450,-443,-443,-443,-443,-433,-443,-422,-387,-335,-435,-430,-427,-384,-385,-385,-337,-260,-244,-239,-168,-153,-452,-373,-589,-499,-499,-499,-498,-485,-712,-671,-5030,-4613,-6789,-6425,-29973,-29974,-29974,-29974,-29974,-29975,-29975,-29972,-29971,-5578]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Ne4 6. Nf3 Bf5 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4)} 7. d3 Nxc3 8. bxc3 c5 {The position is equal.} 9. d4 c4 10. a4 Nc6 11. Be2 Be7 12. O-O O-O 13. Ne1 {[#]} Qa5 $146 ({Predecessor:} 13... Na5 14. Nc2 {0-1 (41) Aronian,L (2764)-Nakamura,H (2769) Stavanger 2018}) 14. Bd2 f6 15. exf6 Rxf6 16. Nc2 Be6 17. Ne3 Bd6 18. g3 Ne7 19. Rb1 Qc7 20. Bf3 a6 21. Bg2 Rb8 22. f4 b5 {[#]} 23. f5 $1 {[%mdl 512]} Bf7 (23... Bxf5 24. Rxf5) 24. axb5 axb5 25. Qc2 h5 26. Kh1 Qd7 27. Rf2 Ra8 ({Better is} 27... b4 $14) 28. Rbf1 $16 b4 {[#]} 29. Nxc4 $1 {[%mdl 512]} b3 (29... dxc4 30. Bxa8) 30. Qb1 dxc4 31. Bxa8 {Strongly threatening Bg5.} Nd5 32. Qe4 Bf8 {White must now prevent ...Ra6.} 33. Kg1 $1 Ra6 34. Bxd5 $1 Bxd5 35. Qe2 (35. Qe5 $1 $16) 35... Bf7 36. f6 {Hoping for fxg7.} g6 37. Qe4 Re6 38. Qf3 Rb6 39. Bc1 Ra6 40. Re2 Ra1 41. Qf4 Qb7 42. Bb2 Ra2 43. Rfe1 Qd5 44. Bc1 Qa5 45. Rxa2 Qxa2 46. Qd2 (46. Qf2 $16 {Threatens to win with Qxa2.} Qxf2+ 47. Kxf2) 46... Qa6 (46... Qxd2 $11 {keeps the balance.} 47. Bxd2 b2) 47. Qf2 Qa5 48. Bb2 $1 Bh6 49. h3 Qd5 (49... Bf8 $16 50. h4 Qa8) 50. Kh2 (50. Re5 $18 Qc6 51. g4) 50... Bf8 51. Re5 Qa8 52. Bc1 ({White should play} 52. h4 $16) 52... h4 $11 53. Bf4 {Rb5 is the strong threat.} Qa1 (53... Qb7 $11 {and Black stays safe.} 54. Qe1 b2) 54. Re1 $4 {[%mdl 8192]} (54. Rb5 $18) 54... b2 $19 55. gxh4 b1=Q 56. Rxb1 Qxb1 57. Qg3 Qc2+ 58. Kg1 Kh7 59. Qf3 Qf5 60. Qg3 Qb1+ 61. Kf2 Qc2+ 62. Ke1 Qf5 63. Bg5 Qe6+ ({Not} 63... Qb1+ 64. Kf2 $19) 64. Kd2 Bd6 65. Qg4 Qxg4 66. hxg4 Be6 67. Ke3 Bxg4 68. Ke4 $2 {[#]} (68. Bf4 $17 Ba3 69. Ke4) 68... Be6 $1 69. d5 (69. Bf4 $142 Bf5+ 70. Kf3) 69... Bh3 70. Kd4 {[#]} Bf1 $1 71. Bc1 Kg8 72. Bh6 (72. Ke4 $142 Kf7 73. Bg5) 72... Kf7 73. Bg5 Bd3 74. Ke3 Be5 {[%mdl 64] Double Attack} 75. d6 Bxd6 {Black mates.} 76. Kd4 Bc7 77. Kd5 Bg3 78. Kd4 Ke6 79. Kc5 Be5 {Accuracy: White = 46%, Black = 59%.} 0-1

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "8"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "ChessBase"]
[PlyCount "133"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. Nf3 {[%emt 0:12:07]} d5 {[%emt 0:12:07]} 2. d4 {[%emt 0:00:09]} Nf6 {[%emt 0:00:10]} 3. c4 {[%emt 0:00:09]} c6 {[%emt 0:00:10]} 4. e3 {[%emt 0:00:10]} e6 {[%emt 0:00:10]} 5. Nbd2 {[%emt 0:00:09]} Nbd7 {[%emt 0:00:09]} 6. Bd3 {[%emt 0:00:09]} Bd6 {[%emt 0:00:09]} 7. e4 {[%emt 0:00:09]} e5 {[%emt 0:00:09]} 8. cxd5 {[%emt 0:00:09]} cxd5 {[%emt 0:00:09]} 9. exd5 {[%emt 0:00:09]} O-O {[%emt 0:00:09]} 10. O-O {[%emt 0:00:10]} exd4 {[%emt 0:00:10]} 11. Nxd4 {[%emt 0:00:09]} Nb6 {[%emt 0:00:18]} 12. Nf5 {[%emt 0:00:09]} Nbxd5 {[%emt 0:00:28]} 13. Nxd6 {[%emt 0:00:10]} Qxd6 {[%emt 0:00:09]} 14. Nc4 {[%emt 0:00:46]} Qc7 {[%emt 0:00:09]} 15. h3 {[%emt 0:00:11]} Rd8 {[%emt 0:00:11]} 16. Qf3 {[%emt 0:00:12]} b6 {[%emt 0:00:18]} 17. Bg5 {[%emt 0:00:46]} Bb7 {[%emt 0:00:09]} 18. Be2 {[%emt 0:00:09]} h6 {[%emt 0:00:12]} 19. Bxf6 {[%emt 0:00:13]} Nxf6 {[%emt 0:00:13]} 20. Qa3 {[%emt 0:00:10]} Re8 {[%emt 0:00:37]} 21. Ne3 {[%emt 0:00:12]} Qf4 {[%emt 0:00:10]} 22. Rfe1 {[%emt 0:00:22]} Re5 {[%emt 0:00:15]} 23. Ng4 {[%emt 0:00:21]} Re6 {[%emt 0:00:50]} 24. Nxf6+ {[%emt 0:00:29]} Rxf6 {[%emt 0:00:10]} 25. Qe3 {[%emt 0:00:13]} Qxe3 {[%emt 0:00:16]} 26. fxe3 {[%emt 0:00:09]} Re8 {[%emt 0:00:12]} 27. Bf1 {[%emt 0:00:09]} a5 {[%emt 0:00:33]} 28. Rad1 {[%emt 0:00:15]} g5 {[%emt 0:00:11]} 29. a3 {[%emt 0:00:11]} Kg7 {[%emt 0:00:09]} 30. Rd4 {[%emt 0:00:12]} Re5 {[%emt 0:00:12]} 31. b4 {[%emt 0:00:11]} h5 {[%emt 0:00:17]} 32. Bd3 {[%emt 0:00:15]} h4 {[%emt 0:00:11]} 33. Bc4 {[%emt 0:00:19]} Be4 {[%emt 0:00:14]} 34. Bf1 {[%emt 0:00:13]} Rc6 {[%emt 0:00:13]} 35. bxa5 {[%emt 0:00:17]} bxa5 {[%emt 0:00:09]} 36. Bc4 {[%emt 0:00:11]} Bg6 {[%emt 0:00:21]} 37. Bd5 {[%emt 0:00:11]} Rc3 {[%emt 0:00:10]} 38. e4 {[%emt 0:00:10]} Rxa3 {[%emt 0:00:09]} 39. Rf1 {[%emt 0:00:11]} Rc3 {[%emt 0:00:18]} 40. Ra1 {[%emt 0:00:17]} Rc5 {[%emt 0:00:13]} 41. Rda4 {[%emt 0:00:09]} f5 {[%emt 0:00:11]} 42. Rxa5 {[%emt 0:00:14]} Rxa5 {[%emt 0:00:09]} 43. Rxa5 {[%emt 0:00:09]} fxe4 {[%emt 0:00:09]} 44. Ra7+ {[%emt 0:00:08]} Kf8 {[%emt 0:00:10]} 45. Bc4 {[%emt 0:00:11]} Bh5 {[%emt 0:00:15]} 46. Rh7 {[%emt 0:00:13]} Bg6 {[%emt 0:00:10]} 47. Rc7 {[%emt 0:00:11]} e3 {[%emt 0:00:10]} 48. Be2 {[%emt 0:00:09]} Be4 {[%emt 0:00:11]} 49. Rc3 {[%emt 0:00:11]} Bd5 {[%emt 0:00:09]} 50. Kf1 {[%emt 0:00:17]} Rf5+ {[%emt 0:00:10]} 51. Kg1 {[%emt 0:00:09]} Re5 {[%emt 0:00:12]} 52. Kf1 {[%emt 0:00:09]} Ke7 {[%emt 0:00:08]} 53. Bf3 {[%emt 0:00:14]} Bxf3 {[%emt 0:00:13]} 54. gxf3 {[%emt 0:00:09]} e2+ {[%emt 0:00:10]} 55. Ke1 {[%emt 0:00:09]} Kf6 {[%emt 0:00:09]} 56. Rc8 {[%emt 0:00:19]} Re3 {[%emt 0:00:10]} 57. Rf8+ {[%emt 0:00:09]} Kg7 58. Rf5 {[%emt 0:00:09]} Kg6 {[%emt 0:00:18]} 59. Rf8 {[%emt 0:00:09]} Re7 {[%emt 0:00:13]} 60. f4 {[%emt 0:00:12]} g4 {[%emt 0:00:10]} 61. Rg8+ {[%emt 0:00:10]} Rg7 {[%emt 0:00:10]} 62. Rh8 {[%emt 0:00:13]} Rh7 {[%emt 0:00:11]} 63. Rg8+ {[%emt 0:00:09]} Rg7 {[%emt 0:00:09]} 64. Rh8 {[%emt 0:00:09]} gxh3 {[%emt 0:00:09]} 65. Rxh4 {[%emt 0:00:10]} Rf7 {[%emt 0:00:12]} 66. Rxh3 {[%emt 0:00:10]} Rxf4 {[%emt 0:00:09]} 67. Kxe2 1/2-1/2

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "9"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,62,10,12,17,0,0,0,0,0,7,10,0,0,18,0,35,24,21,9,16,4,44,-32,-62,-50,-32,-55,36,43,42,35,31,26,118,45,177,125,100,101,1035,937,1332,1329,5293,3073,1188,760,29986,29987,29991,5482,29974,955,29994]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Ne4 6. Nf3 Bf5 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4)} 7. d3 (7. Be2 {looks sharper.} d4 8. Nxe4 Bxe4 9. Bc4 Nc6 10. O-O) 7... Nxc3 8. bxc3 c5 {The position is equal.} 9. d4 c4 10. a4 Nc6 11. Be2 Be7 12. O-O Na5 $146 ({Predecessor:} 12... O-O 13. Ne1 Na5 14. Nc2 {0-1 (41) Aronian,L (2764)-Nakamura,H (2769) Stavanger 2018}) 13. Nd2 O-O 14. f4 f6 15. g4 Bd7 16. f5 (16. Bf3 $14) 16... fxe5 $15 17. dxe5 Bc5+ 18. Kg2 d4 ({Black should try} 18... Bc6 $1 $15 19. Bf3 g6 20. fxg6 hxg6) 19. Bf3 $36 {[%mdl 2048] Black must now prevent Ne4. White has good play.} Bc6 20. Ne4 $1 {[%cal Re4c5]} Bxe4 $1 21. Bxe4 dxc3 {[#]} (21... Nb3 $1 $11 {keeps the balance.} 22. Rb1 dxc3) 22. Bf4 (22. Qe2 $1 $16) 22... Bd4 (22... Nb3 $14) 23. Qf3 (23. Qe2 $18) 23... Nb3 $16 24. Rad1 {Threatens to win with Be3.} Qa5 $2 {[%mdl 8192]} (24... Qh4 $16) 25. f6 $18 gxf6 26. exf6 {Intending Bxh7+! and mate.} Rxf6 27. Bd5+ Kg7 28. Bxc4 Raf8 29. Qxb7+ {[%mdl 64] Double Attack} Kh8 30. Bxb3 (30. Bh6 $142 Qg5 31. Bxg5 Na5 32. Rxf6 Rg8 33. Qd5 Nxc4 34. Qxd4 {[%mdl 64] Double Attack} Ne5 35. Qxe5 Kg7 36. Rh6+ Kf8 37. Rf1#) 30... c2 31. Rxd4 (31. Bxc2 $142 R6f7 {[#]} 32. Bh6 $1 {[%mdl 512]} Qc5 33. Rxf7 Rxf7 34. Qxf7 Qxc2+ 35. Kh3 Qc3+ 36. Kh4) 31... Qc3 {Accuracy: White = 47%, Black = 35%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.23"]
[Round "10"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,85,12,23,5,9,8,54,14,14,0,18,4,14,0,0,0,0,0,7,0,0,0,10,0,123,118,170,172,147,150,211,204,212,210,219,119,126,118,129,141,133,135,126,115,513,489,516,510,667,666,773,773,1076,1038,988,958,3040,833,29988,29989,29989,29990,29990,29965,29964,29965,29962,29964,29959,29960,6514,6095,29991,29992,29998,29999]} 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Qc2 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4)} Re8 8. a3 Bf8 9. Bd2 {White is slightly better.} e5 10. dxe5 Nxe5 11. cxd5 Nxd5 12. O-O-O {White wants to play Nxd5.} (12. Nxe5 {keeps more tension.} Rxe5 13. e4 c6 14. Be2 Nxc3 15. Bxc3 Re8 16. O-O) 12... Nxf3 13. gxf3 Nxc3 14. Bxc3 Qh4 $1 {[#]} 15. Rg1 $146 Be6 16. f4 Rad8 {...Rxd1+ is the strong threat.} 17. Bd3 Bg4 {[#]} (17... Rd6 $11 {keeps the balance.}) 18. Bxh7+ $1 $16 {[%mdl 512]} Kh8 (18... Qxh7 $16 19. Qxh7+ (19. Rxg4 Rxd1+ 20. Qxd1 Qxh2 $14) 19... Kxh7 20. Rxg4 Rxd1+ 21. Kxd1 f6) 19. Rxd8 Rxd8 20. Be4 b5 (20... c6 $16 21. f3 Qh3) 21. f3 $18 Bh3 22. Rg3 Kg8 23. Qf2 (23. f5 $18) 23... Qh6 $16 24. f5 $36 {[%mdl 2048] Threatens to win with f4. White has strong initiative.} c5 25. f4 {Hoping for Qf3.} b4 26. axb4 {[%mdl 64] Overworked Piece} cxb4 27. Bd4 {Strongly threatening Qf3.} Re8 $2 {[%mdl 8192]} (27... b3 $16) 28. Bd3 $18 Rc8+ 29. Kd2 b3 30. Qf3 Bf1 31. Qxf1 Bb4+ 32. Ke2 Qxh2+ 33. Qg2 Qh5+ 34. Qf3 Qh2+ 35. Rg2 Qh4 36. Rxg7+ Kf8 37. Rxf7+ {[%mdl 64] Decoy} Kxf7 38. Qb7+ {[%mdl 64] Double Attack} Be7 39. Qxc8 {[%cal Rd3c4]} Qh2+ {[#]} 40. Kd1 $1 {[%cal Rd3c4]} Qg1+ {[#]} 41. Kd2 $1 {[%cal Rd3c4]} Qg2+ 42. Kc3 a5 43. Bc4+ {[%mdl 64] Double Attack. Accuracy: White = 56%, Black = 37%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "11"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "0-1"]
[ECO "A18"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,132,-3,0,10,0,2,8,-33,46,46,46,32,43,20,18,26,35,25,43,49,56,54,46,18,44,0,0,0,0,7,28,13,17,-62,61,56,56,8,7,6,5,9,10,14,14,14,16,17,28,-40,-43,-155,-154,-308,-162,-180,-179,-165,-171,-164,-171,-237,-203,-235,-232,-228,-216,-329,-315,-344,-337,-396,-392,-486,-508,-689,-670,-796,-785,-770,-763,-751,-739,-691,-535,-1002,-965,-724,-635,-635,-428,-635,-635,-617,-617,-587,-595,-582,-568,-582,-544,-29969,-1383,-29965,-29957,-6083,-1070,-29967,-29968,-29967,-29970,-29969,-29969,-29968,-12363]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Ne4 6. Nf3 Bf5 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4)} 7. d3 Nxc3 8. bxc3 c5 9. d4 c4 10. a4 Nc6 {LiveBook: 4 Games} 11. Be2 Be7 12. O-O O-O 13. Ba3 $146 ({Predecessor:} 13. Ne1 Na5 14. Nc2 {0-1 (41) Aronian,L (2764)-Nakamura,H (2769) Stavanger 2018}) 13... Na5 (13... Bxa3 $15 14. Rxa3 Qe7) 14. Bxe7 $14 Qxe7 15. Nd2 f6 16. f4 fxe5 17. fxe5 Qg5 {[#] Hoping for ...Qe3+.} 18. Rf3 Be6 {Threatens to win with ...Rxf3.} 19. Rg3 Qf4 20. Rb1 b6 21. Kh1 Rad8 22. Bf3 Bf5 23. Rb5 Be6 24. Qe1 Kh8 25. Nf1 Nc6 26. Ne3 ({White should try} 26. Be2 $11) 26... Ne7 (26... Nxd4 $1 $15 27. cxd4 Qxd4) 27. a5 Rb8 28. a6 Rbd8 $40 {[%mdl 128] Black is up to no good.} 29. h3 Qh4 30. Rb1 Nf5 31. Nxf5 Bxf5 32. Rd1 b5 33. Kh2 Qh6 34. Qe2 (34. Ra1 $11) 34... Qxa6 $15 35. Rg5 (35. Bg4 $15) 35... Qh6 $17 36. Qd2 $2 (36. Rg3 $17) 36... Bxh3 (36... a5 $142 37. Qc1 b4 38. Bxd5 b3 39. Rxf5 Rxf5 40. Bxc4 a4 41. Qxh6 gxh6) 37. Rg3 {aiming for Qxh6.} Qxd2 38. Rxd2 Bc8 39. Ra2 a6 40. e6 (40. Be2 $142) 40... Rfe8 41. Bg4 Rd6 42. Re3 g6 43. Re5 (43. Rf2 {keeps fighting.} Kg8 44. Kg3) 43... h5 ({Less strong is} 43... Bxe6 44. Rae2 $15) 44. Bh3 {If only White now had time for Rf2....} Kg7 ({Inferior is} 44... Bxe6 45. Rae2 $11) 45. Rf2 {intending Rf7+.} Re7 46. Rfe2 a5 47. Rb2 b4 48. cxb4 c3 {[%cal Bc4c3,Bc3c2][%mdl 32]} 49. Rb3 Rc6 50. Re1 axb4 51. Rxb4 Bxe6 52. Rb5 c2 53. Bxe6 Rexe6 $19 {[%mdl 4096] Endgame KRR-KRR} 54. Rc1 Red6 55. Rc5 (55. Rb2 $142 Rc4 56. Rcxc2) 55... Rxc5 56. dxc5 {KR-KR} Rc6 57. Rxc2 {[#]} Kf6 $1 {[%cal Rf6e5]} 58. Kg3 Ke5 59. Rc1 d4 60. Kh4 Kd5 (60... d3 $142 61. Kg3 Ke4 62. Re1+ Kd4 63. Ra1 Ke3 64. Re1+ Kd2 65. Re7 Kc2 66. Ra7 d2 67. Ra2+ Kd3 68. Ra1 Rxc5 69. Kf2 Rc1 70. Ra3+ Kc4 71. Ra4+ Kc3 72. Ra3+ Kb4 73. Rd3 d1=Q 74. Rxd1 Rxd1 75. Ke3 Rf1 76. Ke4 Rf8 77. Kd3 g5 78. Kd4 h4 79. Kd5 Rf2 80. Ke5 Rxg2 81. Ke4 h3 82. Kf3 g4+ 83. Kf4 h2 84. Ke4 h1=Q 85. Kf5 Rf2+ 86. Ke6 Kc5 87. Kd7 Qc6+ 88. Ke7 Qd6+ 89. Ke8 Rf8#) 61. Kg5 Rxc5 62. Rd1 Rc6 (62... Ke4+ $142 63. Kh4 d3) 63. g4 hxg4 {Black mates.} 64. Kxg4 Rf6 65. Kg5 Rf8 66. Kxg6 Kc4 {Precision: White = 40%, Black = 64%.} (66... Rf3 $142 67. Kh6 d3 68. Kh5 Ke4 69. Kg4 Rf2 70. Kg3 Re2 71. Ra1 d2 72. Ra4+ Kd3 73. Ra3+ Kc2 74. Ra2+ Kb1 75. Kf3 Rh2 76. Rxd2 Rxd2 77. Ke3 Kc2 78. Ke4 Kc3 79. Ke5 Rd4 80. Ke6 Kd3 81. Ke5 Ke3 82. Kf5 Re4 83. Kg5 Re5+ 84. Kg6 Kf4 85. Kf6 Re4 86. Kg6 Re6+ 87. Kg7 Kg5 88. Kf7 Re4 89. Kg7 Rf4 90. Kh8 Kh6 91. Kg8 Kg6 92. Kh8 Rf8#) 0-1

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "12"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,61,81,65,140,139,133,135,137,0,0,0,141,141,154,144,141,127,147,135,140,144,134,82,203,193,209,205,244,237,228,177,187,187,223,228,293,289,288,142,126,134,217,183,276,268,274,269,1067,1047,1089,1071,1520,1512]} 1. Nf3 f5 2. d3 Nf6 3. e4 fxe4 4. dxe4 Nxe4 5. Bd3 Nf6 6. Ng5 $1 {[%cal Rg5h7]} d6 {[#] A04: Unusual lines after 1 Nf3 and King's Indian Attack} ({Black should play} 6... c6 $14) (6... g6 7. h4 d5 8. h5 Bg4 9. f3 Bxh5 10. g4 Qd6 11. gxh5 Nxh5 12. Nc3 Nc6 13. f4 Nxf4 14. Qf3 Nxd3+ 15. cxd3 {1-0 (24) Kazakovskiy,V (2323)-Kantans,T (2496) Stockholm 2016}) 7. Bxh7 $1 $16 {[%mdl 576] Deflection, Decoy} Nxh7 8. Qh5+ {[%mdl 64] Double Attack} Kd7 {White is clearly better.} 9. Qg4+ {[%mdl 1024] White has strong compensation.} ({But not} 9. Nxh7 $6 Qe8 $11) 9... Ke8 10. Qh5+ {[%mdl 64] Double Attack} Kd7 {[#] ...Qe8 is the strong threat.} 11. Nf7 $1 $36 {[%cal Rf7d8][%mdl 2048] Black is under strong pressure.} ({Of course not} 11. Nxh7 $6 Qe8 $11) 11... Qe8 {Threatens to win with ...e6.} 12. Qh3+ Kc6 13. Qf3+ Kd7 $146 ({Predecessor:} 13... Kb6 14. Nxh8 Nf6 15. Qb3+ Kc6 16. Nc3 {0-1 (27) Bocharnikov,O (1948)-Leonov,D (2201) Moscow 2008}) 14. Nxh8 Nf6 15. Bg5 Nc6 16. Nc3 (16. Qf5+ $142 Kd8 17. Qg6) 16... Ne5 (16... g6 $16) 17. Qe2 c6 18. f4 Nf7 19. Ng6 Kc7 20. Nxf8 Qxf8 21. O-O Bg4 22. Qe3 Bf5 23. Rae1 e6 24. Qe2 (24. Bxf6 $18 gxf6 25. h3) 24... d5 25. h3 {And now g4 would win.} Qc5+ (25... Nd6 $16 26. Qe5 Nd7) 26. Kh2 $18 {Strongly threatening Bxf6.} Nd6 (26... Ne4 $142) 27. Qe5 Rf8 28. Ne2 Ng4+ $2 (28... Nd7 29. Qxg7 Rf7) 29. hxg4 {White is clearly winning.} Rh8+ 30. Kg3 Kc8 31. Nd4 {Accuracy: White = 68%, Black = 37%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "13"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "139"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,139,-26,-31,-25,-52,-11,-45,-53,-60,-61,-50,10,-40,-8,-29,-34,-45,0,0,41,17,120,53,62,48,26,45,66,-35,-52,-52,-9,-10,0,0,0,-13,31,43,155,158,158,161,158,156,202,200,167,125,108,64,70,9,55,0,0,0,76,35,34,8,11,2,29,18,17,16,25,0,75,37,231,231,759,797,760,759,704,582,1128,1513,1189,1189,740,88,89,102,111,111,112,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. Bb2 d4 8. e3 Nc6 9. exd4 cxd4 10. Re1 Ne8 11. Na3 f6 12. d3 e5 13. Nc2 Nc7 14. a3 a5 {A14: English Opening: 1...e6 with b3 by White} 15. Rb1 Be6 16. Bc1 (16. Nfxd4 $5 Nxd4 17. Bxd4 exd4 18. Rxe6 $1 {[%mdl 512]} Nxe6 19. Bd5 $15) 16... Qd7 {[#] Black is slightly better.} 17. Qe2 $146 ({Predecessor:} 17. Bd2 Bf5 18. Bc1 Rab8 19. Qd2 b5 {½-½ (19) Hodgson,J (2540)-Haugli,P (2395) Gausdal 1990}) 17... b5 18. Nd2 a4 (18... Bh3 $15) 19. b4 bxc4 20. Nxc4 {Black must now prevent Nb6.} Rab8 21. Bb2 Nb5 22. f4 Kh8 23. fxe5 f5 (23... Nxe5 $11 24. Nxe5 fxe5) 24. Nd6 (24. Rf1 $16) 24... Nc3 $14 25. Bxc3 $1 dxc3 26. d4 Bb3 27. b5 (27. Qa6 $14 Na7 28. Rbc1) 27... Na7 28. Nb4 Bxd6 29. Bc6 $1 {[%cal Rc6d7]} Qd8 30. exd6 {And now d7 would win.} Qxd6 31. Qe5 Qxe5 32. Rxe5 Rfd8 (32... Bc4 $14) 33. Rc1 $16 ({Worse is} 33. Rxf5 Rxd4 34. Rc5 Rc4 $11) 33... Bc4 {[%cal Ra7b5]} 34. Rxc3 Bxb5 {[#]} 35. d5 $1 ({And not} 35. Rxf5 Nxc6 36. Nxc6 Bxc6 $11) 35... g6 36. Re7 Nc8 37. Rc7 Nd6 38. Re3 {Ree7 is the strong threat.} Ne4 39. g4 (39. Ra7 $14) 39... Rd6 40. Rh3 ({White should try} 40. Kg2 $14) 40... Ng5 $11 41. Re3 (41. Rc3 $11) 41... Ne4 $1 $16 42. Bxb5 Rxb5 43. gxf5 gxf5 44. Rh3 h6 45. Rh5 Rf6 46. Kg2 Rb8 47. Kf3 Rg8 (47... Ng5+ $11 {keeps the balance.} 48. Kg2 Rg6) 48. Kf4 Rg4+ $2 ({Black should play} 48... Nd6 $1 $14) 49. Ke5 $18 Rg5 $2 (49... Rg1 50. Nd3 Rf1) 50. Rxg5 hxg5 {[%mdl 4096] Endgame KRN-KRN} 51. Nc6 Rh6 52. Ne7 Nd6 53. Nxf5 Nxf5 54. Kxf5 {White threatens Rc6 and mate. KR-KR} Kg8 55. Rc2 $2 (55. h4 $18 {and the rest is easy.}) 55... Kf7 $16 56. Kxg5 Rh3 {[#]} 57. Rc7+ $1 Ke8 58. d6 ({Better is} 58. Kf5 $16) 58... Rxa3 $11 {The position is equal.} 59. h4 {Hoping for h5.} Rg3+ 60. Kh6 (60. Kf5 {keeps more tension.} Rf3+ 61. Ke5 Re3+ 62. Kd5 Rd3+ 63. Kc6) 60... Rd3 61. Ra7 Rxd6+ 62. Kg5 Rd5+ 63. Kf6 Rd6+ 64. Ke5 Rb6 65. h5 Kf8 66. Rxa4 Kg7 67. Rg4+ Kh6 68. Rg6+ Rxg6 69. hxg6 Kxg6 70. Ke4 {Accuracy: White = 41%, Black = 48%.} 1/2-1/2

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.24"]
[Round "14"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "233"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,233,43,31,25,19,26,15,17,0,3,0,2,20,43,41,27,22,34,17,28,12,12,12,12,12,17,19,42,36,42,49,50,39,99,99,99,99,99,99,106,106,106,106,106,99,106,99,99,99,106,98,106,99,99,99,106,99,98,98,98,97,99,97,97,97,97,97,97,53,97,0,97,97,99,97,99,97,106,98,98,98,106,98,98,98,106,97,97,97,97,97,97,97,98,0,97,0,97,97,98,98,106,98,106,0,97,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,0,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,72,72,8,8,8,8,0,8,8,8,8,8,8,8,0,6,0,22,0,0,0,45,0,0,0,45,0,38,0,45,0,45,45,45,45,45,0,45,0,0,0,45,45,52,0,52,53,53,53,53,0,53,53,53,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 c5 5. Bb2 Nc6 6. cxd5 exd5 7. Be2 Bd6 8. O-O O-O 9. d4 cxd4 10. Nxd4 Qe7 {A13: English Opening: 1...e6} (10... Re8 11. Nd2 Bd7 12. Nxc6 bxc6 13. Rc1 a5 14. Nf3 Ne4 15. Nd4 Qh4 16. f4 Qf6 17. Rc2 c5 18. Nb5 {½-½ (72) Nakamura,H (2746)-Anand,V (2773) Kolkata 2018}) 11. Nd2 Nxd4 12. Bxd4 Bf5 $146 ({Predecessor:} 12... Be6 13. Rc1 Ba3 14. Rc3 Bb4 15. Rc1 Ba3 16. Rc3 Bb4 17. Rc1 Rfc8 18. Bd3 Rxc1 {½-½ (18) Csom,I (2490)-Geller,E (2620) Biel 1976}) 13. Nb1 Ne4 14. Nc3 Nxc3 (14... Rad8 {with more complications.} 15. Nb5 Bb8 16. Rc1 Qh4 17. f4 g5) 15. Bxc3 Be5 16. Bxe5 Qxe5 17. Qd2 Rac8 18. Rac1 b6 19. Ba6 Rxc1 20. Rxc1 Rd8 21. f3 Be6 22. Qc3 Qxc3 23. Rxc3 $11 {[%mdl 4096] Endgame KRB-KRB} Kf8 24. Rc7 d4 25. exd4 (25. e4 {keeps more tension.} d3 26. Rc1 f5 27. Rd1 fxe4 28. fxe4 Kf7 29. Kf2) 25... Rd7 (25... Rxd4 $14 26. Rxa7 Rd2) 26. Rxd7 $16 Bxd7 {KB-KB} 27. Bd3 h6 28. Kf2 g5 29. Ke3 Ke7 30. Bc4 f6 31. b4 Bf5 32. Bd3 Be6 33. a3 Bf7 34. Bh7 Bd5 35. g3 Kd6 36. Bc2 Bc6 37. Bb3 Bb7 38. h4 Bc6 39. Bc2 Bd5 40. Be4 Be6 41. Kd3 Bf7 42. Kc3 Be6 43. Kd2 Bf7 44. Ke3 Be6 $1 45. Bh7 Bd5 46. Bc2 Bc6 47. f4 Bd5 48. Be4 {[#] aiming for Bxd5.} Bf7 49. Bf3 Bg6 50. Bg4 Bc2 51. Be2 Bg6 52. Bd3 Bf7 53. Be4 Bh5 54. Kd3 Bf7 55. Bf5 Bd5 56. Be4 Bf7 $1 57. Ke3 Bh5 $1 58. Bc2 Bf7 59. Bd1 Bg6 60. Bf3 Bf7 61. Be4 Bh5 $1 62. fxg5 fxg5 63. Bf5 Bd1 64. Bg6 Kd5 65. Bf7+ Kd6 66. Bc4 Bh5 67. Kd2 Bg4 68. Kc3 Bf5 69. Be2 Be4 70. Kc4 Bc6 71. Bg4 Be8 72. Bf5 Bc6 73. Kd3 Bf3 74. Ke3 (74. Be4 $16 Bh5 75. hxg5 hxg5 76. Ke3) 74... Bd5 (74... Bd1 $1 $11) 75. Be4 Bf7 76. Kd2 Be6 77. Kc3 Bf7 78. Kd3 Be6 79. Bf3 Bf5+ 80. Kc4 Bd7 81. Bd1 Bc6 82. a4 a5 83. bxa5 (83. Bb3 $16) 83... bxa5 $11 84. Kd3 Bd5 85. Ke3 Bc6 86. Bb3 Bb7 87. Kd2 Bc6 88. Kd3 Bb7 89. Bc4 Bc6 90. Bb5 Bd5 91. Ke3 Ke7 92. Kd2 Kd6 93. Ke2 Ke7 94. Kd3 Kd6 95. Bc4 Bc6 96. Bb3 Bb7 97. Bd1 Bd5 98. Bc2 Ke7 99. Ke3 Kd6 100. Bd3 Bc6 101. Bb5 Bd5 102. Kd2 Be4 103. Kc3 Bd5 104. Kd3 (104. Bc4 $14 Bc6 105. Bb5) 104... Ke7 ({Better is} 104... gxh4 $11 105. gxh4 Bb3) 105. Bc4 $14 Bc6 106. Bb3 Kd6 107. Ke3 Bb7 $1 108. hxg5 hxg5 109. d5 ({White should play} 109. Ke2 $14) 109... Ke5 {The position is equal.} 110. Kf3 Bc8 111. Ke3 Bf5 112. d6 Kxd6 {[#] Hoping for ...Kc5.} 113. Kd4 Bd7 114. Bd1 Be6 115. Bc2 Bd7 116. Bd1 Be6 117. Bc2 {Accuracy: White = 57%, Black = 70%.} 1/2-1/2

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "15"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,121,16,18,54,45,54,41,45,29,58,28,26,33,25,27,32,16,20,39,50,0,0,-28,-16,-8,0,0,0,0,0,0,0,0,43,47,45,0,0,0,13,0,10,0,29,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,50,42,52,0,0,0,0,1,7,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-29984,-29977,-29969,-203,-29988,-29989,-29989,-29974,-29999]} 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. cxd5 exd5 7. b3 c5 8. d4 b6 {D30: Queen's Gambit Declined: Systems without Nc3} (8... Nc6 9. Bb2 Bg4 10. Ne5 Bh5 11. Nxc6 bxc6 12. Nc3 Re8 13. Rc1 Nd7 14. Qd2 cxd4 15. Qxd4 Bf6 16. Qd2 Qa5 17. Rfd1 Qa6 {0-1 (68) Garcia,J (2429)-Lu,S (2636) Makati 2018}) 9. Bb2 {LiveBook: 20 Games} a5 $146 ({Predecessor:} 9... Bb7 10. Nc3 Nbd7 11. Rc1 Re8 12. Qd3 Rc8 13. Rfd1 Ne4 14. e3 cxd4 15. Nxd4 Ndc5 16. Qb1 Bf6 17. Nce2 Qd7 18. Nf4 Rcd8 19. Bh3 Ne6 20. Ndxe6 fxe6 21. Bxf6 Nxf6 22. Qb2 Qd6 23. Bg2 Rc8 24. Rxc8 Rxc8 25. e4 Qc5 26. Nxe6 {½-½ (26) Huang,Q (2439)-Shuvalova,P (2416) Qinhuangdao 2018}) 10. Nc3 Bb7 {White is slightly better.} 11. Rc1 Na6 12. e3 Re8 13. Qd3 Nb4 14. Qb1 c4 15. Ne5 cxb3 16. axb3 Ba6 17. Rfd1 Bd6 18. h3 Rc8 19. f4 Bb7 20. g4 Ne4 (20... h6 {is interesting.} 21. Bf3 Qe7 22. Ba3 Red8 23. Qf5 g6) 21. Nxe4 Rxc1 22. Bxc1 {[#] Threatens to win with Ng5.} dxe4 23. Bxe4 Bxe4 24. Qxe4 Bxe5 25. fxe5 f6 26. Ba3 Rxe5 $1 27. Qf3 Re7 28. Bxb4 axb4 $11 {[%mdl 4096] Endgame KQR-KQR} 29. Ra1 Re8 30. Kg2 Qc7 31. Ra8 Qc2+ 32. Kg3 {White wants to mate with Qd5+.} Qc7+ 33. Kg2 Qc2+ 34. Kf1 Rxa8 35. Qxa8+ {KQ-KQ} Kf7 36. Qd5+ Kf8 37. Qd6+ Kf7 38. Qxb4 Qc1+ 39. Kf2 Qc2+ 40. Kf3 (40. Kg3 $1 $14) 40... Qd1+ 41. Kf2 Qc2+ $1 42. Kg3 {aiming for Qc4+.} Qc7+ $1 43. Kf3 Qh2 $1 44. Qxb6 {And now Qb7+ would win.} Qxh3+ 45. Kf2 Qh2+ 46. Kf3 {Black should prevent Qb7+.} Qh3+ 47. Kf2 Qh2+ 48. Ke1 Qg1+ 49. Kd2 Qxg4 50. Qc7+ Kg6 51. b4 h5 52. b5 Qg2+ 53. Kc3 {Black must now prevent b6.} h4 54. b6 h3 55. b7 h2 56. b8=Q {Intending Qe8+ and mate.} h1=Q {( -> ...Qc1+)} 57. Kb4 $2 {[%mdl 8192] [#]} (57. Qg3+ $11 Qxg3 58. Qxg3+ Kf7 59. Qc7+ Kg6 60. Qg3+ Kf7 61. Qc7+ Kg6 62. Qg3+) 57... Qb2+ 58. Kc5 Qa3+ $2 (58... Qc2+ {mates} 59. Kd6 Qch2+ 60. Kd7 Qd5+ 61. Qd6 Qf7+ 62. Kc6 Qc2+ 63. Qc5 Qa4+ 64. Kb6 Qab3+ 65. Qb5 Qxb5+ 66. Kxb5 Qb3+ 67. Kc5 Qxb8 68. d5 Qc7+ 69. Kb4 Kf5 70. Kb3 g5 71. Ka4 g4 72. Kb3 g3 73. Kb4 g2 74. d6 Qb7+ 75. Kc3 g1=Q 76. e4+ Qxe4 77. Kb3 Qb6+ 78. Kc3 Qbb4#) 59. Kc4 $2 (59. Qb4 $19 Qhc1+ 60. Kd5 Qa8+ 61. Qbb7 Qg8+ 62. Kd6 Qa3+ 63. Qc5 Qd8+ 64. Qd7 Qf8+ 65. Qe7 Qa6+ 66. Kd7 Qb7+ 67. Ke6 Qe4+ 68. Kd7 Qg4+ 69. Kd6 Qb8+ 70. Qec7 Qg3+ 71. Kd7 Qh3+ 72. Kd6 Qf8+ 73. Kc6 Qe8+ 74. Kb7 Qhxe3 75. Qd5) 59... Qf1+ {Black mates.} 60. Kd5 Qf3+ 61. Ke6 Qf5# {Precision: White = 45%, Black = 65%.} 0-1

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "16"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "164"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,164,31,29,34,16,18,-13,-4,-28,-30,-36,-35,-40,-31,-44,-47,-44,-49,-57,-54,-85,-61,-53,-50,-107,-39,-45,-44,-54,-29,-33,60,-70,-25,-54,0,-82,-90,-102,-89,-64,-80,-85,-73,-271,0,-149,-45,-78,-31,-11,-26,-460,-31,-285,-63,-65,-5,-110,-134,-146,-131,-129,-117,-252,-166,-179,-129,-129,-129,-129,-87,-228,-207,-208,-226,-245,-129,-129,-8,-8,-23,-40,0,0,0,-33,-33,-33,-33,-33,0,0,0,-40,-40,-40,0,0,0,0,0,0,0,-3,0,-24,0,0,0,-4,0,0,0,-4,-4,-4,0,0,0,-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]} 1. Nf3 Nf6 2. c4 b6 3. d4 e6 4. g3 Ba6 5. b3 c6 6. Bg2 d5 7. O-O Be7 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations} (7... Nbd7 8. Nbd2 Rc8 9. Re1 Be7 10. e4 O-O 11. e5 Ne8 12. cxd5 cxd5 13. Bb2 Bd3 14. Rc1 Nc7 15. Re3 Bg6 16. Bf1 Nb8 17. a3 Qd7 18. Rec3 a6 19. Ne1 Nb5 20. Rxc8 Rxc8 21. a4 Na7 22. Nd3 {½-½ (22) Kasimdzhanov,R (2704)-Kovalyov,A (2616) Baku 2015}) 8. Ne5 Nfd7 9. Nf3 $146 ({Predecessor:} 9. Nxd7 Nxd7 10. Nd2 b5 11. cxd5 cxd5 12. e4 Nb6 13. e5 b4 14. Re1 O-O 15. Bf1 Bxf1 16. Nxf1 {½-½ (41) Feller,S (2513)-Benidze,D (2365) Yerevan 2007}) 9... dxc4 10. Qc2 cxb3 11. axb3 Bb7 12. Rd1 O-O 13. Nc3 Na6 14. e4 Nb4 15. Qb1 a5 16. Bf4 Re8 17. h4 h6 18. Nd2 (18. Na4 $15) 18... c5 ({Black should try} 18... b5 $1 $17 19. e5 Qb6) 19. Nc4 $15 cxd4 20. Rxd4 Bc5 21. Rd2 Re7 (21... Bc6 $15) 22. Nb5 ({Better is} 22. Na4 $14) 22... Qf8 23. Qd1 Nf6 (23... Bc6 $15 24. Nc3 e5) 24. Bd6 (24. Nc3 $11) 24... Nxe4 $17 25. Bxe7 Qxe7 26. Bxe4 Bxe4 27. Nc3 Bc6 $36 {[%mdl 2048] Hoping for ...Qf6. Black is really pushing.} 28. Ne5 $2 (28. Qe2 $17 {keeps fighting.}) 28... Qf6 $2 (28... Qc7 $19 29. Nxc6 Qxg3+ {[%mdl 64] Double Attack} 30. Kf1 Qh3+ 31. Kg1 Nxc6) 29. Qe1 (29. Nxc6 $11 {was the only way to keep the balance.} Qxc3 30. Nd4) 29... Rf8 (29... Nd5 $1 $17 {[%cal Rd5c3]} 30. Rd3 Bxf2+ $1 {[%mdl 512]} 31. Qxf2 Qxe5) 30. Kh2 Ba8 31. f4 Qf5 32. Nd7 $2 {[%mdl 8192]} (32. Qb1 $11) 32... Rc8 $2 (32... Nc2 $19 33. Qe2 Ne3 34. Nxf8 Ng4+ 35. Qxg4 Qxg4) 33. Nxc5 $4 {[%mdl 8192]} (33. Qe2 $1 $15) 33... Qxc5 $2 (33... Nc2 $19 34. Qb1 Nxa1 35. Qxf5 exf5) 34. Rc1 $15 Qf5 (34... Kh7 $15) 35. Rcd1 (35. Na4 $11 Rb8 36. Qe3) 35... Nd5 $17 36. Nxd5 Bxd5 37. Qe3 b5 {[%cal Bb6b5,Bb5b4][%mdl 32]} 38. Ra1 (38. Qd3 $17 {was necessary.} Qxd3 39. Rxd3) 38... b4 39. Rxa5 Qb1 {[%csl Gd5][%cal Rb1h1]} 40. Raxd5 exd5 41. Qd3 Qxd3 42. Rxd3 {[%mdl 4096] Endgame KR-KR} Rc3 43. Rxd5 Rxb3 44. Rd8+ Kh7 45. h5 {[#]} Rc3 (45... g6 $1 $17 {[%cal Rg6h5]} 46. g4 Rb2+ 47. Kg3 b3) 46. Rb8 $11 b3 47. Rb7 Rc2+ 48. Kh3 b2 49. Kg4 Rf2 50. Kf5 Re2 51. Kg4 Kg8 52. Rb8+ Kh7 53. Rb7 Rh2 54. Kf3 f5 55. Rb8 Rc2 56. Ke3 Rc3+ 57. Kf2 Rc2+ 58. Ke3 Rh2 59. Kf3 g5 60. hxg6+ {The position is equal.} Kxg6 {With the idea ...Kf6.} 61. Rb6+ Kh5 62. Rb5 $1 Kg6 {Black wants to play ...Rc2.} 63. Rb6+ Kf7 64. Ke3 Rg2 65. Kd4 Re2 66. Kd5 Kg7 67. Kd4 h5 68. Kd3 Rg2 69. Kd4 Re2 70. Kd3 Rg2 (70... Rf2 {keeps more tension.} 71. Ke3 Rh2 72. Kd4 h4 73. gxh4 Rxh4 74. Ke5 Rh2) 71. Kd4 Rxg3 {aiming for ...Rg2.} 72. Rxb2 h4 {White must now prevent ...Kg6.} 73. Ke5 Kg6 74. Rb6+ Kh5 75. Kxf5 Rg8 76. Rb7 {[%cal Rb7h7]} Rf8+ 77. Ke4 Kg6 78. Rb6+ Rf6 79. Rxf6+ Kxf6 80. Kf3 Kf5 81. Kg2 {[#]} h3+ $1 {[%mdl 512]} 82. Kxh3 Kxf4 {Accuracy: White = 54%, Black = 41%.} 1/2-1/2

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "17"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,68,27,45,29,28,28,101,4,0,6,14,0,0,0,0,-90,-57,-119,-123,-128,-94,-121,-115,-104,-102,-181,-181,-186,-112,-139,0,-206,-203,-203,-210,-198,-210,-246,-254,-247,-252,-448,-436,-562,-564,-622,-610]} 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. cxd5 exd5 7. b3 Bd6 8. Bb2 Re8 9. d3 c5 10. d4 Nc6 11. Nc3 Bg4 12. dxc5 Bxc5 13. h3 {D34: Tarrasch Defence: 6 g3 Nf6 7 Bg2 Be7} (13. Rc1 Bb4 14. h3 Bh5 15. a3 Bxc3 16. Bxc3 Ne4 17. Bb2 Qb6 18. g4 Bg6 19. Nd4 Rac8 20. e3 h6 21. Ne2 {1-0 (74) Mamedov,R (2651)-Ganguly,S (2626) Moscow 2013}) 13... Bxf3 14. Bxf3 Ne4 (14... Qd7 $11 15. Na4 (15. Nxd5 Nxd5 16. Rc1 Bb6 $15) 15... Be7) 15. Kg2 $146 (15. Qxd5 $16 Qxd5 16. Nxd5) ({Predecessor:} 15. Qxd5 Nxc3 16. Qxc5 Nxe2+ 17. Kg2 Qd2 18. Rab1 Rad8 19. Rfd1 Qxd1 20. Rxd1 Rxd1 21. Qg5 g6 22. Qf6 Kf8 23. Qg7+ Ke7 24. Bxe2 {1-0 (23) Kosic,D (2415)-Hugony,F (2320) San Benedetto 1990}) 15... Bd4 $11 16. Rc1 Qa5 {[%cal Rd4c3]} 17. Qe1 Bxc3 18. Bxc3 Qxa2 {...d4 is the strong threat.} 19. b4 (19. Qd1 $1 $11) 19... a6 ({Don't play} 19... Nxc3 $6 20. Qxc3 g6 21. Ra1 $11) 20. Rd1 ({White should play} 20. Qd1 $15) 20... Rad8 $36 {[%mdl 2048] Black is really pushing.} 21. e3 Ng5 22. Qe2 Qxe2 23. Bxe2 {[#]} d4 $1 {[%mdl 512]} 24. Bd2 (24. Bb2 $17) (24. Bxd4 Nxd4) 24... d3 $19 25. Bg4 Ne5 (25... g6 $19 26. h4 Ne4) 26. Bc3 $17 {[#]} Nc6 (26... Ne4 $1 $17 {[%cal Re4c3]} 27. Bd4 g6) 27. Bf5 $2 (27. Bd2 $1 $11 {and White is okay.}) 27... Ne4 $19 28. Bxe4 Rxe4 29. Rb1 Rc4 30. Rb3 d2 31. Rd1 Rd3 32. Rxd2 $2 (32. b5 axb5 33. Rxd2 Rdxc3 34. Rxb5) 32... Rdxc3 {Black is clearly winning.} 33. Rxc3 Rxc3 34. Rd7 b5 {Accuracy: White = 20%, Black = 46%.} 0-1

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.24"]
[Round "18"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,79,21,19,27,21,58,56,81,86,82,68,81,107,97,99,92,30,33,13,27,23,24,28,28,26,21,24,43,37,52,14,43,12,11,16,8,0,32,28,35,24,45,45,41,35,124,125,205,195,193,186,300,331,306,262,258,270,346,338,331,330,343,320,395,408,379,380]} 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 e6 5. Bd3 Nbd7 6. O-O Bd6 7. Nc3 dxc4 8. Bxc4 b5 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} (8... O-O 9. e4 e5 10. Be3 Qe7 11. Bb3 exd4 12. Bxd4 Ne5 13. Nxe5 Bxe5 14. Bxe5 Qxe5 15. f4 Qc5+ 16. Kh1 Be6 17. e5 Rad8 18. Qf3 {1-0 (38) Yilmaz,M (2624)-Baryshpolets,A (2603) Ankara 2018}) 9. Bb3 O-O 10. e4 {[#] aiming for e5.} b4 {White is slightly better.} 11. e5 bxc3 12. exd6 Ba6 13. Re1 Qb8 $146 ({Predecessor:} 13... Nb6 14. bxc3 Qxd6 15. a4 Rfe8 16. Ne5 Nfd7 17. Ba3 {1-0 (28) Beradze,I (2495)-Jaiswal,R (2165) Batumi 2018}) 14. bxc3 Qxd6 15. a4 (15. Ne5 $16) 15... c5 $11 16. Ba3 Rac8 17. Ne5 Qc7 18. Nxd7 Nxd7 19. d5 exd5 20. Qxd5 Nf6 21. Qf5 Rfd8 22. Re3 Rb8 23. Bc2 Rd5 $1 {[%cal Rd5f5]} 24. Qf3 Bb7 $132 {[%mdl 2048] [#] ...Rg5 is the strong threat. Black has counterplay} 25. Qe2 Rbd8 {Threatens to win with ...Rd2.} 26. Re1 {[%cal Ba1e1,Be1e7,Be7c7][%mdl 32] Threatening mate with Re8+!} Qc6 {Strongly threatening ...Rd2.} 27. Qb5 h6 28. Re7 R5d7 {[%csl Gb7][%cal Rc6g2]} 29. f3 Rxe7 (29... Rd2 $14 30. Qxc6 (30. Rxb7 Qxb5 31. Bh7+ Kxh7 $14) (30. Qxb7 Qxb7 31. Bh7+ Kxh7 $11) 30... Bxc6) 30. Rxe7 $16 Ba8 (30... Nd7 $16 {keeps fighting.}) 31. Qxc6 $18 (31. Qxc5 $6 Rd2 $16) (31. Rxa7 $6 Qe6 $14) 31... Bxc6 32. Rc7 Bd7 (32... Be8 $142 33. Rxa7 (33. Bxc5 Nd5 $18) 33... Nd5) 33. Bxc5 ({Resist} 33. Rxa7 $6 Rc8 $18) 33... Be6 {Black hopes to continue with ...Rd2.} 34. Bd4 a6 35. Rc6 a5 36. Ra6 Nd5 37. Rxa5 Rc8 38. Be4 Nf4 39. Ra8 Rxa8 40. Bxa8 {Accuracy: White = 70%, Black = 35%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "19"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "141"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,141,20,18,27,22,37,32,53,41,35,46,91,27,109,109,130,33,54,39,78,62,116,113,110,115,127,130,126,123,151,143,199,181,184,197,225,221,252,182,217,228,220,218,331,330,327,296,366,267,267,267,247,256,353,353,346,344,380,369,380,380,318,318,444,443,435,359,359,292,292,292,300,293,286,260,253,242,249,124,125,0,249,249,444,444,471,471,471,450,1164,1055,1008,927,1034,1034,1047,985,780,0,1032,1032,1014,1000,918,833,812,812,706,699,29948,29947,12842,29962,29962,29963,5832,5724,7691,4674,29977,29978,29987,29988,29989,29980]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Nbd2 O-O 7. O-O a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} 8. h3 h6 9. Re1 Re8 10. Nf1 {LiveBook: 3 Games} Ne7 $146 ({Predecessor:} 10... Ba7 11. Ng3 Be6 12. Bb5 Bd7 13. Ba4 Ne7 14. Bc2 Ng6 15. d4 b5 16. Be3 {0-1 (44) McShane,L (2669)-Adams,M (2706) Hull 2018}) 11. d4 exd4 12. cxd4 Bb4 13. Re2 {a3 is the strong threat.} d5 14. e5 {Black must now prevent Bd3.} Ne4 15. Bd3 (15. a3 $16) 15... Nc6 (15... Nf5 $11) 16. a3 $36 {[%mdl 2048] White is on the roll.} Bf8 17. Bxe4 ({White should try} 17. Ng3 $16) 17... dxe4 $14 18. Rxe4 f6 19. Bf4 fxe5 (19... f5 $14 20. Re1 Be6) 20. Bxe5 Nxe5 21. Nxe5 Be6 22. Ne3 c6 23. Qh5 Bd6 24. Re1 {[%cal Ba1e1,Be1e3,Be3e7][%mdl 32] And now N3g4 would win.} Bxe5 (24... Qf6 $16 25. N3c4 Bc7) 25. Rxe5 $18 Bf7 26. Qg4 Qf6 27. Nf5 Rad8 28. R1e3 h5 29. Qf4 Kh7 30. Rxe8 ({Don't play} 30. Rxa5 Bd5) 30... Bxe8 (30... Rxe8 $142 31. Rxe8 Bxe8) 31. Re7 Bf7 32. Qe5 ({Don't take} 32. Rxb7 $6 c5 $18) 32... Kg6 {Black wants to play ...Rd5.} 33. Rxb7 Qxf5 34. Qxf5+ Kxf5 35. Rxf7+ {[%mdl 4096] Endgame KR-KR} Kg6 36. Ra7 Rxd4 37. Rxa5 Rd1+ 38. Kh2 Rd2 39. Rc5 Rxb2 40. Rxc6+ Kh7 41. f3 Ra2 42. Ra6 h4 43. f4 Rf2 44. Ra4 Kg6 45. Kg1 Ra2 46. Ra5 Kh6 47. Rg5 g6 48. Rg4 (48. Ra5 $18) 48... Kh5 $16 49. Rg5+ (49. g3 $1 $16 hxg3 50. Rxg3) 49... Kh6 $18 50. Ra5 Rc2 $2 (50... Kg7 51. Ra6 Kf7) 51. f5 {[%cal Bf4f5,Bf5f6,Bf6f7][%mdl 32]} g5 52. f6 Kg6 {[#]} 53. f7 $1 {[%cal Rf7f8]} Rc8 (53... Kxf7 $142 54. Rxg5 Ra2) 54. Ra7 Kg7 55. Kf2 Rc4 56. a4 Rc2+ 57. Kf3 Rc3+ 58. Kf2 Rc2+ 59. Kg1 $1 Rc1+ {[#]} 60. Kh2 $1 Ra1 61. a5 Kf8 62. a6 Kg7 {[#]} 63. g4 $1 Ra3 64. Kg2 Kf8 65. Kf2 (65. Kf1 $18 Ra2 66. Ke1) 65... Kg7 66. Ke2 Kf8 67. Kd2 Kg7 68. Kc2 Rxh3 69. Rd7 {White mates.} Rh2+ 70. Rd2 Rh3 71. a7 {Precision: White = 73%, Black = 39%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "20"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,117,23,25,27,20,34,29,75,71,80,83,73,17,11,27,22,8,15,8,27,28,8,22,20,15,23,16,22,29,12,4,7,4,63,6,20,20,37,5,26,24,23,6,14,14,18,18,32,20,26,26,16,18,20,18,23,22,64,0,0,0,0,0,0,0,241,229,261,276,480,470,729,718,1066,1050,1037,987,827,526,506,448,452,440,546,497,1056,945,5097,4481,4586,800,1090,991,846,784,4134,1314,29979,29981,29981,29982,29981,29983,29984,29985]} 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 e6 5. Bd3 Nbd7 6. O-O Bd6 7. Nc3 dxc4 8. Bxc4 b5 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} (8... O-O 9. e4 e5 10. Be3 Qe7 11. Bb3 exd4 12. Bxd4 Ne5 13. Nxe5 Bxe5 14. Bxe5 Qxe5 15. f4 Qc5+ 16. Kh1 Be6 17. e5 Rad8 18. Qf3 {1-0 (38) Yilmaz,M (2624)-Baryshpolets,A (2603) Ankara 2018}) 9. Bb3 b4 10. Na4 c5 {White has an edge.} 11. dxc5 Nxc5 12. Nxc5 Bxc5 13. Qc2 $146 ({White should play} 13. Qxd8+ $16 Kxd8 14. Ne5) ({Predecessor:} 13. Ba4+ Ke7 14. Ne5 Bb7 15. Nc6+ Bxc6 16. Bxc6 Qxd1 17. Rxd1 {½-½ (48) Plischki,S (2367)-Bartos,J (2199) Marianske Lazne 2013}) 13... Qb6 $11 14. Ba4+ Bd7 15. Ne5 Bb5 16. Nc4 Qa6 17. Bxb5+ Qxb5 18. b3 O-O 19. Bb2 Be7 20. Rad1 Rfd8 21. Rxd8+ Rxd8 22. Rd1 Rxd1+ 23. Qxd1 Qd5 (23... Nd5 $11) 24. Qc2 (24. Qxd5 $14 Nxd5 25. Kf1) 24... Ne4 25. f3 Nc5 26. Kf1 h6 27. Bd4 a6 28. Qd2 Qf5 29. Qd1 h5 30. Ke2 Qg5 31. g3 Qf5 32. e4 Qh3 33. Qg1 Nd7 34. Nb2 $36 {[%mdl 2048] White has good play.} e5 35. Nd3 Qe6 ({Don't blunder} 35... exd4 $2 36. Nf4 $18) 36. Bb2 (36. Be3 $14) 36... a5 37. Qa7 Qc6 38. Qe3 a4 39. Qc1 Qe6 $2 (39... Qa6 $11 {and Black has nothing to worry.}) 40. Qc8+ $18 Kh7 {[#]} 41. Nxe5 $1 {[%mdl 512]} axb3 $2 (41... Nxe5 42. Qxe6 fxe6) 42. Qxd7 ({Worse is} 42. Nxd7 bxa2 43. Nf8+ Bxf8 $11) 42... Qa6+ (42... Qxd7 $142 43. Nxd7 bxa2) 43. Nd3 bxa2 44. Qxe7 {[%mdl 64] Double Attack} a1=Q 45. Bxa1 Qxa1 46. Qxb4 Qg1 47. Qe1 Qxh2+ 48. Ke3 g5 49. e5 h4 (49... Kg8 $142 50. Qa5 Qxg3 51. Qd8+ Kg7 52. Qf6+ Kg8) 50. gxh4 gxh4 51. Nf4 Kh6 52. Qd1 Qg3 53. Qd6+ Kh7 54. Qf6 Qg1+ 55. Ke4 Qe1+ 56. Kf5 {White mates.} Qb1+ 57. Kg5 Qg1+ 58. Kh5 h3 59. Qxf7+ {Accuracy: White = 69%, Black = 39%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "21"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "149"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,149,14,10,11,0,12,-4,0,0,0,0,7,0,4,1,0,0,6,0,0,0,0,0,0,-10,0,0,7,7,7,7,13,-106,0,-2,-2,0,0,0,3,3,3,3,0,-22,4,0,12,5,13,0,0,0,17,0,17,0,8,8,12,14,14,0,0,0,0,0,0,0,0,0,23,0,105,12,45,41,157,182,291,51,56,0,152,125,362,220,243,229,233,185,187,180,180,180,180,179,172,0,151,0,172,0,0,0,0,0,0,0,0,0,261,253,1606,1570,1589,138,1577,1494,1624,1466,29968,29968,5202,5102,29983,29983,29983,29976,29976,29972,29978,29979,29984,29985,29985,29986,29985,29986]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O O-O 7. Nbd2 a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} 8. h3 Be6 9. Re1 Bxc4 $146 {The position is equal.} ({Predecessor:} 9... h6 10. Bb5 Ba7 11. Nf1 Ne7 12. Ng3 c6 13. Ba4 Ng6 14. Bc2 Qc7 15. d4 {1-0 (36) Karjakin,S (2769)-Tomashevsky,E (2728) Wijk aan Zee 2016}) 10. Nxc4 h6 11. Be3 Bxe3 12. Nxe3 Re8 13. Qb3 Qd7 14. Rad1 a4 15. Qc2 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 16. Nh2 b4 17. Nhg4 Nxg4 18. hxg4 a3 19. b3 bxc3 20. Qxc3 Nd4 21. Nf5 c5 22. Re3 (22. Qd2 $11 {remains equal.}) 22... h5 ({Better is} 22... g6 $1 $17 {[%cal Rg6f5]} 23. Nxh6+ Kg7) 23. gxh5 $11 Nxf5 24. exf5 Qxf5 25. Rh3 Rab8 {[%cal Ba8b8,Bb8b4,Bb4g4][%mdl 32]} 26. Qc1 Rb4 27. Qxa3 Rg4 28. Re1 Rg5 29. Ree3 Rxh5 30. Ref3 Qg6 31. Qa7 {Threatens to win with Qd7.} Rxh3 32. Rxh3 {[%mdl 4096] Endgame KQR-KQR} f5 33. a4 e4 34. dxe4 Rxe4 35. Qa8+ Kf7 36. Qb7+ Re7 37. Qd5+ Qe6 38. Qf3 Qe1+ 39. Kh2 Qe5+ 40. g3 Qe4 41. Qh5+ Kg8 42. Rh4 Qc2 (42... Qd5 $11 {keeps the balance.} 43. Rf4 (43. Qh8+ Kf7 $11) 43... Re1) 43. Qh7+ (43. Qf3 $1 $16) 43... Kf7 (43... Kf8 $5 {[%cal Rc2f2]} 44. Rf4 Ke8 $14) 44. Rf4 $36 {[%mdl 2048] White is pushing.} Re5 (44... Ke6 $14) 45. a5 $1 $16 {[%cal Ra5a6]} Qd3 {[#]} (45... Qa2 {was worth a try.} 46. g4 (46. Rxf5+ Rxf5 47. Qxf5+ Ke7 $16) 46... Qxa5) 46. Qh5+ $2 (46. Rg4 $1 $18 {[%mdl 512]} Ke6 (46... fxg4 47. Qxd3) 47. Rxg7) 46... Kg8 $1 $14 47. Qg6 (47. g4 $14) 47... Qa6 $2 (47... Qd5 $1 $11 48. Qh5 Qxb3) 48. b4 c4 $2 (48... Qd3 $16) 49. Rxf5 Rxf5 50. Qxf5 $18 {KQ-KQ} c3 51. Qe6+ Kh8 52. Qe8+ Kh7 53. Qh5+ Kg8 54. Qd5+ Kh8 55. Qh5+ Kg8 56. Qe8+ Kh7 57. Qe3 $2 ({White must play} 57. Qe4+ $18 Kh8 58. Qf3) 57... Qc4 $11 58. a6 {Black must now prevent a7.} c2 59. a7 c1=Q 60. Qxc1 Qxc1 61. a8=Q {And now Qe4+ would win. KQ-KQ} Qc2 $2 {[%mdl 8192]} (61... Qe1 $11 {and Black is okay.}) 62. Qf3 $18 Qc4 $2 (62... Qb2 63. Qf5+ Kh6) 63. Qh5+ Kg8 64. Qe8+ Kh7 {[#]} 65. b5 $1 {[%cal Bb4b5,Bb5b6,Bb6b7][%mdl 32]} Qc5 66. Kg1 d5 67. Qc6 Qd4 68. b6 Qd1+ 69. Kg2 {White mates.} Qb1 70. Qe6 d4 71. Qh3+ Kg8 72. Qc8+ Kh7 73. b7 Qe4+ 74. Kh2 Qf3 75. Qh3+ {Accuracy: White = 58%, Black = 53%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.24"]
[Round "22"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,65,29,27,68,72,71,87,77,11,22,8,12,-10,74,70,82,25,25,18,18,27,57,58,58,55,54,54,91,66,71,46,43,0,103,62,96,98,93,101,118,124,192,189,301,304,975,975,29994,29995]} 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 e6 5. Bd3 Nbd7 6. O-O Bd6 7. Nc3 dxc4 8. Bxc4 b5 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} (8... O-O 9. e4 e5 10. Be3 Qe7 11. Bb3 exd4 12. Bxd4 Ne5 13. Nxe5 Bxe5 14. Bxe5 Qxe5 15. f4 Qc5+ 16. Kh1 Be6 17. e5 Rad8 18. Qf3 {1-0 (38) Yilmaz,M (2624)-Baryshpolets,A (2603) Ankara 2018}) 9. Bb3 b4 10. Na4 {LiveBook: 4 Games} c5 {White has an edge.} 11. dxc5 Nxc5 12. Nxc5 Bxc5 13. Ba4+ (13. Qxd8+ $16 Kxd8 14. Ne5) 13... Ke7 $1 $11 14. Ne5 Bb7 $1 15. a3 $146 ({Predecessor:} 15. Nc6+ Bxc6 16. Bxc6 Qxd1 17. Rxd1 {½-½ (48) Plischki,S (2367)-Bartos,J (2199) Marianske Lazne 2013}) 15... Qd5 (15... Qc7 $11 {keeps the balance.} 16. axb4 Bd6) 16. Qxd5 $16 Nxd5 17. Nd3 (17. e4 $16 Nf6 18. axb4) 17... Bd6 $1 $11 18. e4 Nb6 19. e5 Nxa4 20. exd6+ Kxd6 21. axb4 Nb6 $1 22. Be3 f6 23. Bc5+ Kd7 24. Ra5 Nc4 25. Raa1 a6 (25... Nb6 $1 $11) 26. b3 Nd6 27. Rfd1 $36 {[%mdl 2048] White is on the roll.} Bd5 28. Nf4 Kc6 29. Nxe6 Nb5 (29... Nf5 $16 {is a better defense.}) 30. Nxg7 $18 {[#] Black must now prevent Rac1.} Rhg8 (30... Bxg2 {was worth a try.} 31. Kxg2 Rhg8) 31. Rac1 Bxg2 $2 (31... Kb7 32. Rxd5 Rxg7) 32. Be3+ ({Less strong is} 32. Kxg2 Rxg7+ 33. Kf3 Kb7 $16) 32... Kb7 33. Rd7+ {Precision: White = 48%, Black = 26%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.22"]
[Round "23"]
[White "Duda, Jan-Krzysztof"]
[Black "Nakamura, Hikaru"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2731"]
[BlackElo "2749"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,83,17,29,31,33,31,29,2,24,-6,-6,-13,-12,-13,18,16,16,5,24,24,27,24,33,8,8,8,47,9,47,47,47,54,73,62,62,47,62,62,67,74,74,74,76,0,0,0,0,0,530,530,574,573,754,716,754,738,29992,29993,29993,1427,29994,1107,1164,1138,29995,1289,3025,995,1874,1829,29991,29992,29994,29995]} 1. d4 Nf6 2. Bg5 c5 3. Bxf6 gxf6 4. d5 Qb6 5. Qc1 f5 6. c4 Bg7 7. Nc3 {A45: Trompowsky Attack} d6 8. e3 Nd7 {[%cal Bb8d7,Bd7f8,Bf8g6,Bg6e5][%mdl 32]} 9. Nf3 {White has an edge.} (9. Nh3 Nf6 10. Be2 Ne4 11. O-O Nxc3 12. bxc3 Qa5 13. Rb1 Qxc3 14. Qd1 b6 {½-½ (75) Vitiugov,N (2719)-Nakamura,H (2746) St Petersburg 2018}) 9... e5 $146 ({Predecessor:} 9... Nf6 10. Bd3 Ne4 11. Bxe4 fxe4 12. Nd2 f5 13. O-O O-O 14. f3 exf3 15. Rxf3 {1-0 (38) Yakubboev,N (2556)-Pantsulaia,L (2597) St Petersburg 2018}) 10. Nh4 Nf8 11. g3 {Black should prevent Bh3.} Ng6 12. Ng2 e4 13. Be2 Qa5 14. O-O Bxc3 (14... Bd7 {feels hotter.} 15. a4 O-O-O 16. Qd2 Qb4 17. a5 h5) 15. bxc3 Ne5 16. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Bd7 17. Nf4 O-O-O 18. Nh5 Kb8 19. Qc2 Bc8 20. Rfb1 Qc7 21. a5 Qe7 22. h3 Rhg8 23. Kh2 Rg6 24. Ra2 {[%cal Ba1a2,Ba2b2,Bb2b7][%mdl 32]} Rh6 25. Nf4 Rg8 26. Qd1 Ng6 27. Nh5 (27. Bf1 $16) 27... f4 $1 $11 {[%cal Rf4f3]} 28. exf4 Nh4 ({Don't blunder} 28... Qd7 $2 29. Bg4 $18) 29. Rab2 e3 $2 {[%mdl 8192] [#]} (29... a6 $11 {and Black stays safe.}) 30. Rxb7+ $3 $18 {[%mdl 512]} Bxb7 31. a6 $1 Ka8 32. Rxb7 ({Worse is} 32. axb7+ Kb8 $11) 32... Qe4 33. f3 $1 {[%cal Rf3e4]} Qe8 34. Qb1 Qc8 35. g4 (35. Qb5 $142 Nxf3+ 36. Bxf3 Qxh3+ 37. Kxh3 Rxg3+ 38. Kxg3 Rg6+ 39. Kh4 Rg4+ 40. Bxg4 h6 41. Qe8#) 35... Rxh5 36. Bd1 (36. Qb5 $142 Nxf3+ 37. Bxf3 Rxh3+ 38. Kxh3 h5 39. Rb8+ $1 {[%mdl 576] Deflection} Qxb8 40. Qc6+ Qb7 41. Qxb7#) 36... e2 37. Bxe2 {Qb5 would kill now.} Rf5 38. Kg3 (38. Qb5 $142 Nxf3+ 39. Bxf3 Re5 {[#]} 40. Rb8+ $1 {[%mdl 576] Deflection} Qxb8 41. Qc6+ Qb7 42. Qxb7#) 38... Rf6 39. Bd1 (39. Kxh4 $142 h6 40. Kg3) 39... Nf5+ 40. Kf2 {White wants to mate with Ba4.} Ne7 41. Ba4 Re8 42. Bxe8 {Accuracy: White = 51%, Black = 39%.} 1-0

[Event "Champions Showdown Kings Blitz 2019-B"]
[Site "Saint Louis"]
[Date "2019.02.24"]
[Round "24"]
[White "Nakamura, Hikaru"]
[Black "Duda, Jan-Krzysztof"]
[Result "0-1"]
[ECO "E15"]
[WhiteElo "2749"]
[BlackElo "2731"]
[Annotator "TA"]
[PlyCount "142"]
[EventDate "2019.02.09"]
[EventType "match"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 32,142,0,13,2,0,0,0,0,0,0,0,0,0,0,-94,-94,-123,-103,-135,-104,-120,-35,-563,-563,-492,-538,-855,-687,-643,-582,-589,-526,-608,-267,-278,-277,-262,-267,-891,-139,-139,-139,-139,-139,-139,-139,-139,-139,-139,-139,-166,-90,-300,-285,-306,0,-281,-177,-420,-318,-664,-541,-580,-318,-342,-349,-604,-541,-457,-254,-541,-541,-450,-170,-170,-174,-1138,-605,-939,-752,-1543,0,-1172,-133,-427,0,-1589,-1395,-2713,-2303,-29957,-29957,-29956,-29951,-29978,-29979,-29979,-29980,-29985,-29986,-29987,-29985,-29985,-29986,-29987,-29988,-29988,-29989,-29989,-29990,-29990,-29991]} 1. Nf3 Nf6 2. d4 e6 3. c4 b6 4. g3 Ba6 5. b3 c6 6. Bg2 d5 7. Qc2 Be7 8. O-O Nbd7 9. Rd1 Rc8 10. Bf4 O-O 11. Nc3 dxc4 12. e4 b5 13. bxc4 bxc4 14. d5 cxd5 15. exd5 Nxd5 16. Nxd5 exd5 17. Rxd5 {Threatens to win with Bh3.} Bb7 {E08: Closed Catalan: Main Line: 7 Qc2} 18. Rdd1 {aiming for Qf5.} Bf6 {[#] Threatening ...Bxf3.} 19. Ng5 $146 ({Predecessor:} 19. Rab1 Bc6 20. Ne5 Bxe5 21. Bxe5 Qa5 22. Bc3 Qc7 23. Qf5 g6 24. Qg5 f6 25. Bd5+ {½-½ (64) Van Wely,L (2695)-Schandorff,L (2551) Germany 2002}) 19... Bxg5 {The position is equal.} 20. Bxb7 Bxf4 21. Bxc8 Qxc8 22. gxf4 Nc5 $1 $36 {[%mdl 2048] White is under pressure.} 23. Qe2 (23. Qxc4 $11 Qg4+ 24. Kh1 (24. Kf1 Qh3+ 25. Kg1 Qg4+ 26. Kh1 Qf3+ {[%mdl 64] Double Attack} 27. Kg1 Qg4+ $11)) 23... Nd3 $17 {[%mdl 1024] Black has strong compensation.} 24. Qf3 Qf5 25. Rab1 g6 ({Don't take} 25... Nxf4 26. Kh1 $15) 26. Rb7 Rc8 ({Black should play} 26... Ne5 $17 27. Qg3 Nd3) 27. Kg2 $2 {[%mdl 8192]} ({White should try} 27. Rxa7 $15 Nxf4 28. Rad7) 27... Nxf4+ $19 28. Kh1 c3 {[%cal Bc4c3,Bc3c2][%mdl 32]} 29. Rb3 c2 30. Rc1 Rc4 31. Re3 Kg7 32. Rc3 Rb4 (32... Qe6 $142 33. h3 Ne2 {[%mdl 64] Double Attack} 34. R1xc2 Nxc3) 33. Rb3 Rd4 34. Rc3 Rd2 35. Re3 $2 ({Not} 35. Rc4 $2 {[#]} Rd1+ $1 {[%mdl 512]} 36. Rxd1 Qh3 $19) (35. R3xc2 Rxc2 36. Rxc2 Qxc2 37. Qxf4 Qxa2 38. Qe5+ f6 39. Qc7+ Qf7 40. Qc5) 35... Nd3 $2 (35... Qg5 $19 36. Ra1 Rd4) 36. Qxf5 $17 gxf5 37. Rxd3 Rxd3 38. Rxc2 {[%mdl 4096] Endgame KR-KR} Ra3 39. Kg2 Kg6 40. Rc6+ f6 41. Rc2 f4 (41... a5 $19 42. Rd2 Kg5) 42. f3 $2 (42. Rc5 $17 {was necessary.}) 42... Kg5 43. Rc5+ Kg6 44. Rc2 a5 45. Rb2 $2 (45. h4) 45... a4 46. Rc2 $2 (46. h4) 46... Kg5 $19 47. Rc5+ f5 48. Rc2 Rd3 49. Rc7 $2 (49. Kf2) 49... Rd2+ {[%mdl 64] [#] Double Attack} 50. Kh3 h6 (50... Rxa2 $142 51. Rxh7 Rf2 52. Rh5+ Kg6) 51. Rc4 $2 (51. Rc3) 51... Rxa2 52. Rb4 a3 $2 (52... h5 53. Rd4 a3) 53. Ra4 Kf6 54. Ra5 $2 (54. Rxf4 Re2 55. Ra4) 54... Ke6 55. Ra6+ Ke5 56. Ra4 Ke6 $2 (56... h5 $19 {...h4! is the strong threat.} 57. Ra5+ Kd4 58. Rxf5 Ke3 59. Rxh5 Kxf3) 57. Ra5 $2 {[%mdl 8192]} (57. Ra6+ $11 Ke5 58. Rxh6) 57... Kf6 $2 (57... h5 $19 {and Black stays clearly on top. Strongly threatening ...Kf6.} 58. Ra8 Kd5) 58. Ra7 $2 {[%mdl 8192]} (58. Ra6+ $17 Ke5 59. Rxh6) 58... Ke5 (58... h5 $142 59. Ra6+ Ke5) 59. Ra4 $1 Kd5 60. Rxf4 Rc2 61. Rxf5+ Kc4 {Black mates.} 62. Ra5 a2 63. f4 Kb4 64. Ra8 Rc3+ 65. Kg4 Ra3 66. Rb8+ Ka4 67. Ra8+ Kb3 68. Rb8+ Kc2 69. Rc8+ Kd2 70. Rd8+ Ke2 71. Re8+ Kf2 {Accuracy: White = 20%, Black = 51%.} 0-1

