[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.14"]
[Round "1.1"]
[White "Nguyen, Thai Dai Van"]
[Black "Wojtaszek, Radoslaw"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2577"]
[BlackElo "2687"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,60,24,25,29,26,25,22,14,0,0,2,4,3,22,10,9,9,18,0,5,0,6,0,14,10,2,3,2,2,2,2,2,2,8,2,6,3,10,5,2,0,3,0,0,0,8,11,15,10,17]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 h6 7. Bh4 O-O {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. e3 Bf5 9. Qb3 Bxc3+ {The position is equal.} 10. bxc3 {10.Qxc3 gains popularity.} Nbd7 11. Be2 c5 12. dxc5 g5 13. Bg3 {Threatens to win with Bd6.} Nxc5 14. Qb4 Qe7 15. O-O Nfe4 16. Rad1 Rfd8 17. c4 dxc4 18. Bxc4 Rxd1 19. Rxd1 {[#]} Be6 $146 ({Predecessor:} 19... Rd8 20. Rxd8+ Qxd8 21. Nd4 Bg6 22. f3 a5 23. Qa3 Nxg3 24. Qxc5 Nh5 25. e4 b6 {½-½ (60) Grischuk,A (2777)-So,W (2765) Chess.com INT 2020}) 20. Bxe6 Qxe6 21. Qa3 g4 22. Nd4 Qd5 23. f3 gxf3 24. gxf3 Nxg3 25. hxg3 Ne6 26. Kg2 Rc8 27. Qb3 Qxb3 28. Nxb3 a5 29. Nxa5 Rc2+ 30. Kh3 b6 {Not much happened in this game.  Weighted Error Value: White=0.02/Black=0.01} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.14"]
[Round "1.2"]
[White "Van Foreest, Jorden"]
[Black "Abasov, Nijat"]
[Result "1/2-1/2"]
[ECO "B76"]
[WhiteElo "2701"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "139"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,139,48,51,41,66,44,74,77,78,62,73,60,61,56,56,60,56,63,61,46,50,68,54,57,57,57,55,54,48,54,67,67,95,95,103,106,97,51,70,70,101,77,77,77,77,77,77,77,77,55,56,56,56,0,41,0,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,73,66,48,51,48,51,51,51,51,51,51,59,51,65,44,44,44,44,44,44,44,88,14,14,8,15,14,14,14,14,14,15,15,15,15,15,15,15,15,15,15,15,0,15,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. O-O-O d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 e5 13. Bc5 Re8 14. Ne4 {B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0.} Qc7 15. h4 f5 16. Nd6 {White is better.} Rd8 17. Nxc8 Raxc8 18. h5 Nb6 $1 {[#]} 19. Bxb6 $146 ({Predecessor:} 19. Qe3 Rxd1+ 20. Kxd1 Qf7 21. hxg6 hxg6 22. Qb3 Rd8+ 23. Kc1 Qxb3 24. axb3 Bf8 25. Bf2 {½-½ (34) Holec,M (2057)-Eschert,U (1999) ICCF email 2011}) 19... Rxd2 20. Bc4+ Kf8 21. Bxc7 Rxd1+ 22. Rxd1 Bh6+ 23. Kb1 Rxc7 $14 {[%mdl 4096] Endgame KRB-KRB} 24. Rd6 Kg7 25. hxg6 hxg6 26. b4 Bf4 27. Re6 Bd2 28. a3 a5 29. bxa5 ({Much weaker is} 29. Rxe5 $6 axb4 30. axb4 Bc3 $11) 29... Bxa5 30. Rxe5 Bc3 31. Re3 (31. Re6 {looks sharper.} Ra7 32. Ka2 Rb7 33. Bb3 Rb6 34. a4) 31... Rb7+ 32. Bb3 Bd4 33. Rd3 (33. Re6 {with more complications.} c5 34. Rc6 Re7 35. Ka2 Re1 36. Bc4) 33... Bf6 34. Ka2 c5 {next ...c4! is good for Black.} 35. c3 c4 36. Bxc4 {aiming for a4.} Rc7 37. Kb3 Rb7+ $1 38. Kc2 Ra7 39. Kb3 {Black must now prevent a4.} Rb7+ 40. Ka2 {And now a4 would win.} Rc7 41. Bb3 Bxc3 42. a4 Rc5 43. Rd7+ Kh6 44. Rd6 Kg7 45. Ka3 g5 46. Ra6 Be1 47. Re6 Bc3 48. Bc2 Kf7 49. Ra6 (49. Re3 {feels hotter.} f4 50. Bb3+ Kf6 51. Rd3 Ba5 52. Rd7) 49... Ke7 50. Bb3 Kd7 51. Be6+ Kc7 52. Kb3 Be1 53. Bc4 Re5 54. Rg6 Re3+ 55. Kc2 (55. Kb2 {is more complex.} g4 56. fxg4 Re4 57. Bd5 Rxg4 58. Re6) 55... Rc3+ 56. Kd1 Rxc4 57. Kxe1 Rxa4 58. Rxg5 {KR-KR} Ra5 59. Rg6 (59. Kf2 $16) 59... Kd7 $11 {The position is equal.} 60. Kf2 Ke7 61. Kg3 Kf7 62. Rc6 Ra4 63. Kh3 Kg7 (63... Ra8 {is interesting.} 64. f4 Rh8+ 65. Kg3 Rg8+ 66. Kf2 Rd8) 64. Rb6 Rc4 65. g3 Rc3 66. f4 Kf7 67. Kh4 Ra3 68. Rb7+ Kg6 69. Rb6+ Kf7 70. Rb7+ {Weighted Error Value: White=0.09/Black=0.04} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.14"]
[Round "1.3"]
[White "Grandelius, Nils"]
[Black "Shankland, Sam"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "2670"]
[BlackElo "2691"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,105,17,19,19,21,27,19,19,18,27,21,19,14,7,0,32,29,27,43,44,28,9,16,33,15,6,6,15,7,7,12,45,29,31,25,24,0,0,0,6,-22,0,-14,0,-11,0,0,0,0,8,0,67,72,89,84,86,95,96,96,106,32,39,29,32,27,37,36,38,25,56,35,48,45,37,0,0,0,0,0,0,0,0,0,10,10,10,10,10,10,10,10,10,10,10,3,5,0]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd7 $1 {[%mdl 4] is recently more successful than 6...Qd6. C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5.} 7. O-O Nc6 8. Nb3 a6 9. Nbxd4 Nxd4 10. Nxd4 Qc7 11. Bd3 Bd6 12. h3 Bd7 13. Re1 Ne7 14. Qh5 Qc5 15. Qxc5 Bxc5 16. Be3 {Nxe6! is the strong threat.} Bd6 17. Be4 O-O-O 18. Rad1 {[#]} Bc7 $146 ({Predecessor:} 18... h6 19. Bf3 Ba4 20. b3 Bd7 21. c3 Kc7 22. Kf1 Rhe8 23. Bh5 Rf8 24. Bf3 e5 {½-½ (57) Vovk,A (2618)-Ganguly,S (2658) Douglas 2019}) 19. Bg5 f6 20. Bd2 Ng6 21. Nb3 Kb8 22. Nc5 Bc8 23. g3 e5 24. Bg2 h5 25. Be3 Ne7 26. c3 Nf5 27. Bc1 Bb6 28. Ne4 Be6 29. b3 a5 30. Ba3 a4 (30... Kc7 $11) 31. bxa4 $14 Bxa2 32. Nc5 Rxd1 33. Rxd1 {aiming for Nd7+.} Bxc5 34. Bxc5 Rc8 {[#]} 35. Bb6 ({White should try} 35. Bb4 $1 $16) 35... Be6 $1 36. Rd3 Nh6 37. Rd6 Bf5 38. Be3 {Hoping for Rb6.} Nf7 39. Rb6 Nd8 40. a5 $1 {[%cal Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Rxc3 41. a6 {[%cal Rg2b7]} Bc8 42. a7+ Ka8 {The position is equal.} 43. h4 Nc6 (43... Bg4 {keeps more tension.} 44. Be4 Nc6 45. Bxc6 Rxc6 46. Rxc6 bxc6 47. Kg2 e4) 44. Bxc6 Rxc6 45. Rxc6 bxc6 $11 {[%mdl 4096] Endgame KB-KB} 46. Bc5 e4 47. Kf1 g5 48. Ke2 gxh4 49. gxh4 Bg4+ 50. Ke3 f5 51. Kf4 Kb7 52. Kg5 Ka8 53. Kf4 {Weighted Error Value: White=0.05/Black=0.07} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.14"]
[Round "1.4"]
[White "Duda, Jan-Krzysztof"]
[Black "Navara, David"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2729"]
[BlackElo "2697"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,108,27,0,7,4,8,0,0,0,0,-19,-16,-24,-22,-40,-25,-22,-34,-36,-25,-24,-22,-12,-17,-13,0,0,0,0,0,0,18,18,17,14,27,19,17,17,16,12,78,71,93,89,83,76,119,143,144,138,139,138,115,116,182,184,184,177,181,181,285,272,325,319,307,301,685,694,705,684,790,857,850,616,587,587,961,744,742,729,727,741,704,693,993,1009,1396,1338,29979,29980,29985,29986,29993,29994,29994,29992,29992,29993,29999]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Nc3 Qe7 {C48: Four Knights: 4 Bb5, replies other than 4...Bb4.} 7. h3 {[#]} a5 $146 ({Predecessor:} 7... h6 8. Qe2 Nd7 9. Be3 Bb4 10. a3 Bd6 11. Nd2 Nf8 12. Nc4 Ng6 13. O-O O-O 14. Qh5 {1-0 (50) Grischuk,A (2777)-Firouzja,A (2749) Lichess.org INT 2020}) 8. Bg5 a4 {The position is equal.} 9. a3 O-O 10. Bh4 Re8 11. Qe2 b5 12. Nd1 Qd6 13. g4 Nd7 14. Ne3 Bxe3 15. Qxe3 c5 16. Bg3 Nf8 17. Nh4 Qd4 18. Qxd4 cxd4 19. f4 exf4 20. Bxf4 Ra6 21. Bxc7 Rc6 22. Bg3 $36 {[%mdl 2048] White wants to play 0-0-0. White is pushing.} Rxc2 23. Rh2 Rc6 24. Kd2 Ne6 25. Nf5 Ba6 (25... f6 $11 {keeps the balance.}) 26. Bd6 {Strongly threatening Ne7+. Black is now going downhill.} Kh8 27. Bb4 Rec8 {White must now prevent ...Rc2+.} 28. Kd1 Nc5 {[#] Threatens to win with ...Nb3.} 29. Ne7 $1 {Rc1 is the strong threat.} ({But not} 29. Nxd4 $6 Rd6 $11) 29... Nb3 30. Nxc6 {Hoping for Ne7.} Nxa1 31. Nxd4 Rd8 32. Bc3 b4 (32... Nb3 $16 {is a better defense.}) 33. axb4 $18 Bxd3 {[#]} 34. Rd2 $1 {[%cal Rd2d3]} Bxe4 35. Nf5 {[%cal Rd2d8]} Re8 (35... Rxd2+ $142 36. Kxd2 f6) 36. Rd7 ({Avoid the trap} 36. Bxg7+ $2 Kg8 $19) 36... Bf3+ 37. Kc1 Nb3+ 38. Kb1 {aiming for Nd6.} Bc6 $2 (38... Kg8 39. Nxg7 Ra8) 39. Rxf7 Be4+ 40. Ka2 Nd4 41. Rxg7 Bd5+ 42. Ka3 Nb5+ 43. Kxa4 Bc6 44. Ka5 {White threatens Bf6 and mate.} Nxc3 45. bxc3 {[%mdl 4096] Endgame KRB-KRN} Bg2 46. Re7 {[%cal Re7e8]} Ra8+ 47. Kb6 Bxh3 48. Ne3 Rc8 49. c4 Bxg4 50. Nxg4 {White mates.} Rxc4 {KRN-KR} 51. Nf6 {[%csl Gf6][%cal Re7h7]} Rxb4+ 52. Kc6 {[%csl Gf6][%cal Re7h7]} Rh4 53. Kd7 Rh1 54. Ke8 Ra1 55. Rxh7# {Weighted Error Value: White=0.09/Black=0.27} 1-0

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.15"]
[Round "2.1"]
[White "Abasov, Nijat"]
[Black "Grandelius, Nils"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2665"]
[BlackElo "2670"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,0,0,0,0,0,0,3,0,-12,-19,-8,-11,-18,0,-2,-4,-12,-11,-27,27,-14,0,-42,33,26,58,37,29,29,22,29,29,-65,26,27,1,7,33,28,23,41,86,81,164,175,268,269,254,250,260,248,252,266,366,334,401,397,685,666,29960,29964,29968,29970,29966,12193]} 1. e4 c5 2. Nc3 d6 3. f4 g6 4. d4 cxd4 5. Qxd4 Nf6 6. Nf3 {B23: Closed Sicilian: Lines without g3.} Bg7 7. Bd3 O-O 8. Qf2 {The position is equal.} Nbd7 {[%cal Bb8d7,Bd7c5,Bc5d3][%mdl 32]} 9. h3 Nc5 {[#]} 10. Be3 $146 ({Predecessor:} 10. O-O b6 11. Qh4 d5 12. e5 Nfe4 13. Nb5 Ba6 14. a4 e6 15. Qxd8 Rfxd8 16. b4 Nxd3 17. cxd3 {1-0 (39) Hernandez Carmenates,H (2580)-Bogner,S (2448) Dresden 2008}) 10... b6 {[%cal Bb7b6,Bb6b5,Bb5b4][%mdl 32]} 11. O-O-O Nxd3+ 12. Rxd3 Bb7 $1 13. Bd4 b5 (13... Nxe4 $6 14. Nxe4 e5 15. Bxe5 $16) 14. Re1 Qa5 (14... b4 $142 15. Bxf6 Bxf6) 15. Kb1 b4 16. Nd5 Rae8 (16... Nxd5 $15 17. exd5 Bxd5 18. Bxg7 Qxa2+ 19. Kc1 Rfc8 20. Rxe7 Bxf3 21. Qxf3 Kxg7) 17. Bxf6 exf6 18. Nd2 f5 19. Nb3 $1 {[%cal Rb3a5]} Qd8 20. exf5 ({Don't play} 20. Qxa7 Rxe4 21. Red1 Bxd5 $17) 20... a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 21. f6 ({Better is} 21. Red1 $11) 21... Bxf6 (21... Bxd5 $15 22. fxg7 Rxe1+ 23. Qxe1 Re8) 22. Nxf6+ $11 Qxf6 23. Red1 $36 {[%mdl 2048] White has some pressure.} ({Much weaker is} 23. Nxa5 Qxf4 $1 24. Qxf4 Rxe1+ 25. Qc1 Rxc1+ 26. Kxc1 Bxg2 $17) 23... a4 (23... Re6 {looks sharper.} 24. Nxa5 Be4 25. R3d2 Rc8 26. Nb3 Re7) 24. Rxd6 Re6 25. Rxe6 fxe6 26. Nc5 Bd5 (26... a3 $16 27. Rd4 Rd8 28. Rxd8+ Qxd8) 27. g3 $18 ({Reject} 27. Nxa4 $6 Qxf4 28. Qe1 Bxg2 $14) 27... Rc8 (27... Rd8 $142) 28. Nxa4 Qf5 {aiming for ...Rxc2!} 29. Rd2 Qxh3 {[#] ( -> ...Qh1+)} 30. b3 $1 Qh1+ 31. Kb2 Qe4 32. Nc5 Qf5 33. Qd4 Qg4 $2 (33... h5 34. Nd3 g5 35. Nxb4 Bf3) 34. Nd7 {Threatens to win with Nf6+.} Qxg3 {intending ...Qc3+.} 35. Nf6+ {[%mdl 64] Double Attack. White mates.} Kf7 36. Nxd5 exd5 37. Qxd5+ {Weighted Error Value: White=0.12/Black=0.52} 1-0

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.15"]
[Round "2.2"]
[White "Shankland, Sam"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2691"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,77,28,43,37,46,35,21,30,29,32,77,75,55,95,76,102,87,86,95,30,97,97,205,173,199,179,169,213,222,207,215,213,231,222,278,293,280,238,382,376,381,358,388,358,457,456,466,462,616,578,1009,931]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7 11. g4 b5 12. g5 b4 13. Ne2 Ne8 14. f4 a5 15. f5 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} a4 16. fxe6 (16. Nbd4 $5 {[%cal Rd4c6]} exd4 17. Nxd4 $11) 16... axb3 17. cxb3 {The position is equal.} ({Avoid the trap} 17. exd7 $2 bxa2 18. Qd5 a1=Q+ $19) 17... fxe6 18. Bh3 Nc7 {[#] Hoping for ...Rf3.} 19. Kb1 d5 20. exd5 exd5 21. Bg2 Ra5 22. a4 {[#]} Kh8 $146 ({Predecessor:} 22... Rf7 23. Rhe1 Bf8 24. h4 d4 25. Nxd4 exd4 26. Qxd4 Qe7 27. Bf2 Qc5 28. Bg3 Nb6 29. Qxc5 Rxc5 {1-0 (40) Cadillon Costa,L (2350)-Seelig,J (2323) ICCF email 2015}) 23. Rhe1 (23. h4 $16) 23... Ra6 (23... Qb8 $11) 24. h4 $16 {Black is on the road to losing.} (24. Bxd5 Rd6 $19) 24... Rd6 (24... d4 $16 {was called for.}) 25. Bg1 $18 (25. Qxb4 d4 $14) 25... h6 {[%cal Rh6g5]} 26. Qxb4 d4 27. Nc1 Nd5 28. Qb5 Nf4 29. Bc6 hxg5 30. hxg5 Nb8 31. Be4 Nd7 32. g6 Rb6 (32... Qb8 $142 33. Qxb8 Rxb8) 33. Qc4 Nxg6 34. Nd3 {[%cal Bc1d3,Bd3e5,Be5d7][%mdl 32]} Nf4 35. Bc6 ({Not} 35. Bxd4 exd4 36. Qxd4 Bh4 $18) 35... Bh4 {[#] And now ...Nxd3 would win.} 36. Rxe5 {White is clearly winning.} Nxe5 37. Nxe5 Qf6 38. Bxd4 Rbb8 39. Nd7 {Weighted Error Value: White=0.03/Black=0.32} 1-0

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.15"]
[Round "2.3"]
[White "Wojtaszek, Radoslaw"]
[Black "Navara, David"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2687"]
[BlackElo "2697"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,76,22,14,8,6,22,13,18,0,14,12,33,23,30,18,16,25,25,25,51,52,62,60,74,66,91,86,77,78,79,75,94,84,77,82,72,76,75,75,93,89,146,146,146,146,146,146,155,155,160,160,353,349,319,238,1131,158,1091,1112,29983]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bf4 Bd6 {E05: Open Catalan: 5 Nf3 Be7.} 11. Qc1 Nbd7 12. Nc3 Qe7 {The position is equal.} 13. a5 Rfe8 14. Re1 Bxf4 15. Qxf4 Bxf3 16. Qxf3 c6 {[#]} 17. Na4 $146 ({Predecessor:} 17. Red1 e5 18. d5 e4 19. Qf5 g6 20. Qf4 cxd5 21. Nxd5 Nxd5 22. Rxd5 Nf6 23. Rd6 {½-½ (29) Harikrishna,P (2734)-So,W (2763) Riga 2019}) 17... e5 18. dxe5 Nxe5 19. Qc3 Nd5 20. Qc5 Nc7 21. Rad1 Rab8 22. f4 Nd7 23. Qxe7 Rxe7 24. e4 g6 25. Bh3 b5 26. axb6 Nxb6 27. Nc5 $36 {[%mdl 2048] White is on the roll.} Nc4 28. Bf1 Nxb2 29. Rd2 {Rb1 is the strong threat.} Kg7 (29... Ne6 $142 30. Nxe6 (30. Nxa6 Rb6 $16) 30... fxe6) 30. Ra1 $16 {And now Ra2 would win.} (30. Nxa6 $6 Nxa6 31. Bxa6 Na4 $11) (30. Bxa6 $6 Na4 $11) 30... Ne6 {[#]} 31. Nxe6+ fxe6 32. Ra2 ({Resist} 32. Bxa6 Ra7 $16) 32... Reb7 33. Rxa6 e5 34. fxe5 Rb4 $2 (34... c5 $16 35. Rc6 c4) 35. Rd7+ Kh6 36. Raa7 ({Don't play} 36. Rxc6 Rxe4 37. e6 Re8) 36... Nc4 $2 (36... Rh8 37. Rdb7 Rxb7 38. Rxb7 Na4) 37. Rxh7+ $18 Kg5 {[#]} 38. Raf7 $1 {[%cal Rf7f4] Intending Rf4 and mate.} Ne3 {Weighted Error Value: White=0.04/Black=0.18} 1-0

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.15"]
[Round "2.4"]
[White "Nguyen, Thai Dai Van"]
[Black "Van Foreest, Jorden"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2577"]
[BlackElo "2701"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,71,36,20,29,4,0,-30,-26,-79,-76,-66,9,0,13,-13,37,27,36,20,35,20,0,0,0,0,0,0,44,43,46,33,58,68,166,164,167,113,189,196,189,189,190,206,213,185,194,203,391,381,664,291,293,238,242,257,246,41,36,38,30,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5 g6 6. Bf4 Nh5 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4.} 7. Be5 f6 8. Bxb8 (8. Bg3 $5) 8... Rxb8 {Black has an edge.} 9. e4 {[#]} (9. e3 $11) 9... dxe4 $146 ({Predecessor:} 9... e5 10. exd5 cxd5 11. dxe5 Bxc5 12. exf6 Nxf6 13. Qe2+ Kf7 14. O-O-O Re8 15. Qd2 Kg7 {0-1 (36) Moore,H (2274)-Jirka,J (2400) Victoria 2003}) 10. Nxe4 Be6 (10... Nf4 $1 $15) 11. g3 Bh6 12. Bg2 O-O (12... Qd5 $5 {[%cal Rd5e4]} 13. Qe2 Qc4 $11) 13. O-O Ng7 14. Re1 Bf7 15. h4 Ne6 16. Nc3 b6 17. Na4 bxc5 18. dxc5 Qa5 19. Qc2 Rfd8 20. a3 Qc7 21. b4 Nd4 (21... a5 $14) 22. Nxd4 $18 Rxd4 {[#]} 23. Rad1 $1 {[%cal Rd1d4]} Rbd8 (23... Rxd1 $16 24. Rxd1 a5) 24. Rxd4 Rxd4 {[#]} 25. Nb6 $1 Rd2 26. Qe4 Qd8 27. Re2 Rd1+ 28. Kh2 Bc1 $2 (28... e5 {was called for.} 29. Qxc6 g5) 29. Qxc6 {Qb7 is the strong threat.} Bxa3 $2 (29... f5 30. Nc8 Rd7 31. Qxa6 Bh6) 30. Qa4 (30. Qb7 $142 e5 31. c6) 30... Rd3 31. Be4 Rc3 {[#]} 32. Bd5 $1 {[%mdl 512]} a5 ({Not} 32... Bxd5 $2 33. Nxd5 Rxc5 34. bxc5 $18 (34. Qxa3 Rxd5 35. Qxa6 Qd7 $11)) 33. Bxf7+ $2 (33. bxa5 $18 {aiming for Qd4.} Bxc5 34. Qa2 Bxd5 35. Nxd5 (35. Qxd5+ Qxd5 36. Nxd5 Ra3 $11)) 33... Kxf7 $14 34. bxa5 Qd3 {[%cal Rd3e2]} 35. Re3 Qd2 36. Rxc3 {Weighted Error Value: White=0.34/Black=0.34} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.16"]
[Round "3.1"]
[White "Duda, Jan-Krzysztof"]
[Black "Abasov, Nijat"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2729"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,125,8,19,19,20,18,24,30,16,0,0,0,0,0,0,0,0,0,0,1,0,7,8,0,0,0,0,0,0,-6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,58,0,0,0,27,17,24,16,27,13,33,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,19,29,31,22,52,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-28000,-28000,-28000,-28000,-28000,-28000]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 {[%cal Bb8d7,Bd7f8,Bf8e6][%mdl 32]} 8. Nge2 Nf8 9. O-O {D35: Queen's Gambit Declined: Exchange Variation.} Ne6 10. Bh4 O-O 11. f3 $1 {[%mdl 4] White has an edge. is currently scoring better than 11.Qc2.} Re8 12. Kh1 b5 {[#]} 13. Bf2 $146 ({Predecessor:} 13. Qc2 g6 14. a3 a5 15. Rab1 b4 16. Na4 Bb7 17. axb4 axb4 18. b3 Rc8 19. Rbc1 {1-0 (37) Matlakov,M (2700)-Moroni,L (2562) Caleta 2019}) 13... b4 14. Na4 c5 15. Nxc5 Nxc5 16. dxc5 Bxc5 17. Nd4 Bd7 18. Rc1 Qb6 19. Bb1 Rac8 20. Qd2 a5 21. h3 Qd6 22. g4 Bb6 23. Kg2 Rxc1 24. Rxc1 Bc7 {Hoping for ...Qh2+.} 25. Rh1 g6 26. Bd3 Bb8 27. Bb5 Bxb5 28. Nxb5 Qa6 29. Nd4 Qd6 30. Qc2 Qe5 (30... h5 $11) 31. Qc5 (31. Nc6 $14 Qc7 32. Qc1) 31... h5 $11 32. Nc6 (32. Qxa5 hxg4 33. Qxb4 (33. hxg4 $2 Nxg4 34. fxg4 Qe4+ {[%mdl 64] Double Attack} 35. Kg1 Rc8 $19) 33... g3 $19) 32... Bd6 33. Nxe5 Bxc5 {[#]} 34. Rc1 $1 Ba7 35. Nc6 Bxe3 36. Re1 Re6 37. Rxe3 Rxc6 {[%mdl 4096] Endgame KRB-KRN} 38. g5 Nh7 {[%cal Rh7g5]} 39. Re8+ Kg7 $1 40. Bd4+ f6 41. Re7+ Kg8 42. gxf6 Nxf6 43. Kg3 g5 44. h4 gxh4+ 45. Kh3 Kf8 46. Ra7 Ke8 47. Rxa5 Kf7 48. Rc5 (48. b3 $1 $14) 48... Rxc5 49. Bxc5 {KB-KN} Nd7 50. Bxb4 {[#] a4 is the strong threat.} Ne5 $1 51. a4 Nxf3 52. a5 {And now a6 would win.} Nd4 53. a6 {aiming for a7.} Nb5 54. Bc5 Nc7 55. a7 Ke6 56. b4 {Threatens to win with b5.} Kd7 57. Kxh4 Kc6 58. Kxh5 Kb7 59. Kg4 Na6 60. Kf5 $2 {[%mdl 8192]} (60. Bf2 $11) 60... Nxb4 61. Bxb4 {Mate.} Kxa7 62. Ke5 d4 63. Kxd4 {[%mdl 32768] Weighted Error Value: White=0.04/Black=0.05. An unexpected result.} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.16"]
[Round "3.2"]
[White "Van Foreest, Jorden"]
[Black "Wojtaszek, Radoslaw"]
[Result "1/2-1/2"]
[ECO "E54"]
[WhiteElo "2701"]
[BlackElo "2687"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,96,3,0,0,-17,0,-7,0,0,0,0,9,0,0,0,0,0,10,9,0,0,22,0,0,0,0,-10,-22,-15,-12,-12,0,-6,0,0,0,-4,12,12,12,12,12,12,12,12,12,12,16,16,20,12,11,10,10,10,11,11,12,12,12,12,12,11,12,12,12,12,16,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 cxd4 9. exd4 b6 10. Bg5 Bb7 11. Ne5 {The position is equal.} Nbd7 {E54: Nimzo-Indian: Rubinstein: Main Line: 7...dxc4 8 Bxc4.} 12. Nxf7 {[%mdl 64] [#] Remove Defender} Rxf7 $146 ({Predecessor:} 12... Kxf7 13. d5 Ne5 14. dxe6+ Kg6 15. Qc2+ Kxg5 16. Rad1 Qe8 17. h4+ Kxh4 18. Rd4+ Kg5 19. Qd2+ {0-1 (29) Debashis,D (2494)-Lalith,B (2525) Patna 2017}) 13. Bxe6 Qf8 14. Qb3 Bxc3 15. bxc3 Re8 16. Bxf7+ (16. Bc4 {feels hotter.} Rc8 17. f3 Rxc4 18. Qxc4 Bd5 19. Qa6) 16... Qxf7 17. Qxf7+ Kxf7 18. c4 Rc8 19. Rfc1 Ba6 20. c5 Nd5 {[%cal Rb6c5]} 21. Rab1 (21. cxb6 {looks sharper.} axb6 22. Rxc8 Bxc8 23. Rc1 Ba6 24. a4) 21... bxc5 22. dxc5 Nxc5 (22... h6 {seems wilder.} 23. Bd2 Nxc5 24. Rb2 Ke7 25. Rbc2 Kd6) 23. Be3 (23. f3 {with more complications.} h6 24. Bd2 Ke7 25. Rb2 Kd7 26. Rbc2) 23... Nxe3 24. fxe3 Ke6 25. Rb4 g6 26. h3 Ke5 27. Rf4 Ke6 28. Rc3 Nd3 29. Rxc8 Bxc8 30. Rf8 Bb7 31. Rh8 Bd5 32. Rxh7 Bxa2 33. Rxa7 Bc4 34. Ra4 Ne5 35. Kf2 Kf5 36. Ra8 Ke4 37. Re8 Bb5 38. Re7 Kf5 39. g4+ Kf6 40. Rb7 Bc6 41. Rb8 g5 42. Kg3 Bd7 43. Rb6+ Be6 (43... Kf7 {is interesting.} 44. Kf2 Bc6 45. Ra6 Bd5 46. Rd6 Bc6) 44. h4 (44. e4 {is more complex.} Nc4 45. Rc6 Nd2 46. Kf2 Ke5 47. Ke3) 44... gxh4+ 45. Kxh4 Nxg4 46. Rxe6+ Kxe6 47. Kxg4 Ke5 48. e4 Kxe4 {Not much happened in this game.  Weighted Error Value: White=0.03/Black=0.03} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.16"]
[Round "3.3"]
[White "Grandelius, Nils"]
[Black "Nguyen, Thai Dai Van"]
[Result "1/2-1/2"]
[ECO "D26"]
[WhiteElo "2670"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,81,28,20,22,18,0,0,0,4,0,19,25,54,53,37,29,79,61,77,0,43,53,54,61,65,48,63,8,16,18,26,9,17,18,14,14,15,2,2,0,0,0,18,14,27,0,0,0,0,0,0,0,0,0,0,0,0,4,8,0,7,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 {D26: Queen's Gambit Accepted: 4 e3 e6 5 Bxc5 c5 sidelines.} a6 8. Re1 {8.d5 is the recent fashion.} b5 9. Bd3 Bb7 10. a4 {[#]} bxa4 $146 ({Predecessor:} 10... c4 11. axb5 axb5 12. Rxa8 Bxa8 13. Bc2 Bb4 14. e4 Ne7 15. d5 exd5 16. e5 Ne4 17. Nxe4 dxe4 18. Qxd8+ Kxd8 {½-½ (31) Cheparinov,I (2687)-Le,Q (2713) Moscow 2019}) 11. Qxa4 Be7 12. dxc5 $1 Bxc5 ({Don't blunder} 12... Qxd3 $2 13. Ne5 $18) 13. Rd1 Qc7 14. Ne4 Be7 15. b3 ({Better is} 15. Bd2 $16) 15... Nxe4 (15... Nd5 $5 {[%cal Rd5b6]}) 16. Bxe4 O-O 17. Bb2 {[#] Hoping for Rdc1.} Rac8 18. h4 {aiming for Rac1.} Rfd8 $1 19. h5 (19. Rxd8+ $14 Qxd8 20. Rc1) 19... h6 20. Rxd8+ Qxd8 21. Rc1 {[%cal Re4c6]} Nd4 22. Rxc8 Nxf3+ 23. Bxf3 Bxc8 24. Be2 (24. Bc3 {is more complex.} Bf8 25. Qc4 Qd7 26. Qc6 Bd6 27. Kf1) 24... Bb7 25. Bd4 Qa8 26. Bf1 Bf8 27. Qa5 Qc8 28. b4 Qc1 {The position is equal.} 29. Qd8 {[#] Black must now prevent Bc5.} Qc8 30. Qxc8 Bxc8 $11 {[%mdl 4096] Endgame KBB-KBB} 31. Bc3 Bd6 32. Bd3 e5 33. f3 Kf8 34. Kf2 Ke7 35. g3 f6 36. f4 Bb7 37. Ke2 Kd7 38. Kf2 Kc7 39. b5 axb5 40. Bxb5 Kd8 41. Bd3 {Weighted Error Value: White=0.09/Black=0.05} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.16"]
[Round "3.4"]
[White "Navara, David"]
[Black "Shankland, Sam"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "2697"]
[BlackElo "2691"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,69,0,14,19,20,12,-2,1,-14,-2,0,0,-6,0,-16,0,-9,0,-6,8,-17,-14,-27,-22,-31,-37,-39,-41,-30,-40,-43,-37,-49,-47,-52,-46,-55,-39,-37,-19,-83,-74,-206,-209,-195,-212,-346,-341,-325,-274,-279,-282,-470,-256,-255,-255,-245,-238,-29977,-29978,-29985]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Bc5 {A29: English Opening: Four Knights Variation with 4 g3.} 7. O-O O-O 8. d3 Re8 {The position is equal.} 9. Bg5 Nxc3 10. bxc3 f6 11. Bc1 Be6 12. Bb2 Bf8 {[#]} 13. Qc2 $146 ({Predecessor:} 13. a4 Qd7 14. d4 Rad8 15. a5 Bc4 16. Nd2 Bf7 17. e3 b6 18. axb6 cxb6 19. Qb1 {1-0 (41) Duda,J (2729)-Caruana,F (2819) Paris 2019}) 13... Qd7 14. Rfd1 Qf7 15. e4 Na5 16. Nd2 Rad8 17. d4 c6 18. f4 exf4 19. gxf4 f5 20. e5 c5 21. Nf3 Be7 22. Kh1 Nc4 {Hoping for ...Ne3.} 23. Qe2 Qh5 24. a4 Nb6 25. dxc5 (25. a5 $11 Nd5 26. Qd2) 25... Bxc5 $17 26. Qb5 {This costs White the game.} (26. a5 $17 {was worth a try.} Rxd1+ 27. Rxd1) 26... Be3 $1 $19 27. Rxd8 Rxd8 28. a5 (28. Ba3 {might work better.}) 28... Nc4 29. a6 bxa6 ({Wrong is} 29... Bxf4 $2 30. axb7 Rb8 31. Qc6 $1 $18) 30. Qxa6 Bd5 31. Rd1 $2 {[#]} (31. Nd4 Bxg2+ 32. Kxg2 Nxb2 33. Qa2+ Kh8 34. Qxb2) 31... Bd2 $1 $40 {[%mdl 640] Black goes for the king.} 32. Bc1 {[#]} Kh8 $1 33. Rxd2 Nxd2 34. Qa5 $2 (34. Nxd2 $19 Bxg2+ 35. Kxg2 Qg4+ {[%mdl 64] Double Attack} 36. Kf2 Qxf4+ {[%mdl 64] Double Attack} 37. Kg2) 34... Rd7 35. Bxd2 {Weighted Error Value: White=0.44/Black=0.13} 0-1

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.17"]
[Round "4.1"]
[White "Van Foreest, Jorden"]
[Black "Grandelius, Nils"]
[Result "1/2-1/2"]
[ECO "C85"]
[WhiteElo "2701"]
[BlackElo "2670"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,90,18,20,6,4,-5,29,0,0,0,17,8,18,0,11,18,18,0,0,0,0,-14,-12,-12,-8,-8,-16,-23,-10,-10,0,0,-5,0,0,0,0,0,0,0,0,0,7,6,7,6,9,0,0,0,0,0,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 dxc6 7. d3 Nd7 8. Nc3 {C85: Closed Ruy Lopez: Deferred Exchange Variation.} O-O 9. Be3 f6 {[#]} 10. a4 $146 {White has an edge.} ({Predecessor:} 10. Qe2 a5 11. Rfd1 Bd6 12. Nb1 a4 13. Nbd2 b5 14. d4 Qe8 15. c3 exd4 16. cxd4 {½-½ (38) Palladino,M (2116)-Svrsek,R (2196) ICCF email 2015}) 10... Nc5 11. d4 exd4 12. Nxd4 Bd6 13. Qf3 Ne6 14. Nf5 Ng5 15. Qe2 Bxf5 16. exf5 Qd7 17. Qg4 Rae8 18. Rad1 h5 19. Qxh5 Qxf5 20. Rd3 g6 21. Qd1 {The position is equal.} Rf7 {[#] Threatens to win with ...Bxh2+!} 22. Bxg5 Qxg5 23. g3 Qf5 24. Kg2 Kg7 (24... Rh7 $5 25. h4 $8 g5 $11) 25. Re1 Rxe1 26. Qxe1 Re7 27. Qd1 Bb4 28. Qf3 Qxf3+ 29. Kxf3 $11 {[%mdl 4096] Endgame KRB-KRN} f5 30. Ne2 Bd6 31. Re3 Rd7 32. Re8 a5 33. h4 Kf7 34. Re3 (34. Ra8 {seems wilder.} b6 35. Nf4 Re7 36. Nd3 Re4 37. b3) 34... Bc5 35. Re5 Rd5 36. Rxd5 cxd5 {KB-KN} 37. b3 c6 38. Nf4 Bd4 39. Nd3 Kf6 (39... b5 {keeps more tension.} 40. Ke2 Ke6 41. Nf4+ Kf7 42. Nd3) 40. Ke2 Ba7 41. c4 dxc4 42. bxc4 Bd4 43. Kd2 Ke6 44. Nf4+ Kf6 45. Nd3 Ke6 {Not much happened in this game.  Weighted Error Value: White=0.03/Black=0.03} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.17"]
[Round "4.2"]
[White "Wojtaszek, Radoslaw"]
[Black "Shankland, Sam"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2687"]
[BlackElo "2691"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,48,22,20,11,16,16,16,16,16,21,14,21,13,7,16,13,27,22,41,41,29,29,44,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Qc2 {E04: Open Catalan: 5 Nf3.} b5 9. a4 Bxd2+ 10. Nbxd2 Ncb4 11. Qc1 c6 12. b3 {[#]} c3 $146 ({Predecessor:} 12... cxb3 13. Nxb3 O-O 14. O-O a5 15. Qd2 bxa4 16. Nc5 Ba6 17. Nxa6 Rxa6 18. Rfc1 Qe7 {½-½ (41) Korogodski,L (2296)-Dillenburg,A (2302) ICCF email 2018}) 13. Ne4 bxa4 14. Rxa4 c2 15. Qd2 O-O 16. O-O {[%mdl 1024] White has compensation.} a5 17. Rc1 Ba6 18. Raa1 Qb6 {The position is equal.} 19. Nc5 Rfd8 20. e3 Nf6 21. Qc3 Nfd5 22. Qd2 Nf6 23. Qc3 Nfd5 24. Qd2 Nf6 {Weighted Error Value: White=0.03/Black=0.03} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.17"]
[Round "4.3"]
[White "Abasov, Nijat"]
[Black "Navara, David"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2665"]
[BlackElo "2697"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,76,-8,11,10,15,-6,21,11,14,13,8,14,5,17,17,14,15,0,25,-4,-8,-11,-7,-20,-22,-29,-20,-25,184,172,205,209,208,0,0,0,0,0,0,-87,-94,-206,-236,-213,-159,-197,-214,-194,-205,-202,-202,-208,-180,-184,-181,-175,-110,-346,-312,-301,-77,-194,-90,-66,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Nbd2 cxd4 6. exd4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bf5 7. Bb5 Rc8 8. Ne5 Qb6 9. Bxc6+ bxc6 10. Nb3 h6 11. O-O e6 {[#]} 12. c4 $146 ({Predecessor:} 12. g4 Bh7 13. c3 Be7 14. Kh1 g5 15. Be3 h5 16. f3 Nd7 17. Nd3 hxg4 18. fxg4 {0-1 (37) Guichard,P (2247)-Dragicevic,D (2161) Melbourne 2017}) 12... Be7 13. Qe2 Qa6 (13... Qb7 {is interesting.} 14. f3 dxc4 15. Nxc4 Qb4 16. Nc5 O-O) 14. Nc5 Bxc5 15. dxc5 O-O 16. g4 Bh7 17. f3 Rfd8 18. Rfe1 dxc4 $2 {[#]} (18... Qb7 $11 {and Black stays safe.}) 19. Nxf7 $1 $18 {[%mdl 576] Discovered Attack, Remove Defender} Kxf7 (19... Rf8 20. Nd6) 20. Qxe6+ Kf8 21. Bd6+ $2 (21. Rad1 $1 $18 {[%cal Rd1d8]} Qb7 22. Rxd8+ Rxd8 23. Bd6+ Rxd6 24. Qxd6+ (24. cxd6 Bd3 $16) 24... Kf7 25. h4) 21... Rxd6 $11 22. Qxd6+ (22. cxd6 $2 {perishes.} Re8 $19) 22... Kg8 23. Re7 Kh8 {Hoping for ...Nd5.} 24. Rae1 (24. Rxg7 $11 Kxg7 25. Qe7+ Kg8 26. Qe6+ Kg7 27. Qe7+ Kg8 28. Qe6+ Kg7 29. Qe7+) 24... Qa5 $1 $17 25. R1e6 (25. Qe5 $17) 25... Qxa2 $19 26. Rb7 {Black must now prevent Rxf6.} Qb1+ 27. Kf2 Bd3 28. Re1 Qc2+ 29. Kg3 {next Rxg7! is good for White.} Qd2 $1 {[%cal Rd2e1]} 30. Qe7 {[%csl Gb7][%cal Re7g7]} Rg8 {And now ...Nd5 would win.} 31. Qe3 {[#]} Qa5 32. Qe5 Re8 (32... h5 $19 {...hxg4 is the strong threat.} 33. gxh5 Qd2) 33. Qc3 $2 (33. Qxe8+ $17 Nxe8 34. Rxe8+ Kh7 35. Ree7) 33... Qd8 34. Re5 Qc8 $2 (34... Nd7 $19 35. Rxe8+ Qxe8) 35. Rbe7 {[#]} (35. Ree7 $17 {was forced.} Rxe7 36. Rxe7) 35... Rxe7 (35... Qb8 $1 $19 {is more deadly. aiming for ...Rxe7.} 36. Rxe8+ Nxe8) 36. Rxe7 $17 Qd8 (36... Qb8+ $15 37. Qe5 Qxe5+ 38. Rxe5 Nd7 39. Re8+ Kh7) 37. Qe5 $11 Bh7 38. Qd6 Qa8 {[%mdl 32768] Quite a comeback for White.  Weighted Error Value: White=0.31/Black=0.34. Loss on time!?} 1-0

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.17"]
[Round "4.4"]
[White "Nguyen, Thai Dai Van"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2577"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,67,25,0,16,23,18,11,32,31,65,37,33,31,34,35,31,31,62,55,72,31,56,46,60,0,23,0,73,56,46,43,60,60,63,41,83,41,50,0,68,0,52,52,42,52,34,31,62,27,45,18,28,6,6,7,20,22]} 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Nd2 c5 5. a3 Bxd2+ 6. Qxd2 cxd4 7. Nf3 d5 $1 {[%mdl 4] outshines the older 7...b6. E00: Catalan Bogo-Indian (3 g3 Bb4+).} 8. Bg2 dxc4 {Black wants to play ...Nc6.} 9. Qxd4 {[#]} Bd7 $146 ({Predecessor:} 9... Qxd4 10. Nxd4 O-O 11. O-O e5 12. Nb5 Nc6 13. Be3 Bg4 14. Rfe1 Rfd8 15. Rac1 Na5 {½-½ (40) Nguyen,T (2571)-Donchenko,A (2658) Bad Wiessee 2020}) 10. O-O Bc6 11. Qxc4 O-O 12. b4 Nbd7 13. Bb2 Rc8 {[#] And now ...Bxf3 would win.} 14. Rac1 Be4 15. Qd4 Qb6 16. Rfd1 Bc2 17. Re1 Be4 18. Red1 Bc2 19. Re1 Be4 20. Bf1 Bxf3 21. exf3 Qxd4 22. Bxd4 Nb6 23. f4 Rfd8 24. Bc5 Nfd7 25. Bd4 Nf6 26. Bc5 (26. Rxc8 {seems wilder.} Nxc8 27. Rc1 Ne8 28. a4 a6 29. Bc5) 26... Nfd7 27. Be3 Rxc1 28. Rxc1 {Strongly threatening Rc7.} Rc8 29. Rd1 Nd5 30. Bd4 f5 31. Bd3 ({Of course not} 31. Bxa7 b6 $15) 31... g6 32. Bb2 ({But not} 32. Bxa7 b6 $15) 32... Kf7 33. Rc1 N7b6 34. Rxc8 {Weighted Error Value: White=0.18/Black=0.08} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.18"]
[Round "5.1"]
[White "Navara, David"]
[Black "Nguyen, Thai Dai Van"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2697"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,143,33,10,26,16,21,4,20,0,6,0,8,0,26,6,14,0,17,0,12,6,13,10,14,6,7,9,9,10,6,1,7,0,0,-4,-5,-8,-6,-14,-18,-27,-8,-27,0,0,0,0,0,0,-7,0,0,-8,-8,-8,-3,-4,-4,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-58,-58,-58,0,-58,-6,-96,-96,-96,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 h6 6. O-O d6 $1 {6...d6 is better than 6...0-0.} 7. Nbd2 O-O 8. h3 (8. b4 $5 {[%cal Rb4c5]} Bb6 9. h3 $11) 8... Bb6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 9. Re1 Ne7 10. d4 Ng6 11. Bb3 Re8 12. Bc2 c6 13. Nf1 Nh5 14. Ne3 {[#]} Nf6 $146 ({Predecessor:} 14... Nhf4 15. Nf5 Qf6 16. g3 Nxh3+ 17. Kg2 d5 18. dxe5 Nxe5 19. Nxe5 Rxe5 20. f4 Rxe4 21. Bxe4 Nf2 22. Qh5 Nxe4 {0-1 (37) Kazhgaleyev,M (2589)-Carlsen,M (2837) Astana 2012}) 15. Nf1 Nh5 16. Ne3 Nf6 17. dxe5 dxe5 18. Qxd8 Rxd8 19. a4 a5 20. Nf5 Be6 21. g3 Ne8 22. h4 Nf6 23. Kg2 Ng4 24. Ne3 Nxe3+ 25. Bxe3 Bxe3 26. Rxe3 f6 27. b4 Bc4 28. Rb1 b5 (28... Rd7 {seems wilder.} 29. Ree1 axb4 30. cxb4 b5 31. Ra1 bxa4 32. Rxa4 Rb8) 29. axb5 cxb5 {White should prevent ...a4.} 30. bxa5 Rxa5 31. Bb3 Bxb3 32. Rxb3 Nf8 33. h5 Ne6 34. Re2 Nc5 35. Rb4 Nd3 36. Rd2 {[#]} Ne1+ $1 37. Kf1 Rxd2 38. Nxd2 $15 {[%mdl 4096] Endgame KRN-KRN} Nd3 39. Rb1 Ra2 40. Ke2 {[#]} Nxf2 41. Kxf2 {Threatens to win with Ke3.} Rxd2+ {KR-KR} 42. Kf3 Rd3+ 43. Kf2 Rxc3 {...Rc5 is the strong threat.} 44. Rxb5 Rc7 45. Rb8+ Kf7 46. g4 Ke7 47. Rb6 Kf7 48. Rb8 $1 g6 ({Black should try} 48... Ke6 $15) 49. hxg6+ (49. Rb6 $11 {keeps the balance.}) 49... Kxg6 $17 50. Rg8+ Rg7 ({Black should play} 50... Kf7 $17 51. Rh8 Rc4) 51. Rxg7+ $11 {The position is equal.} Kxg7 {K3P-KPP} 52. Kg3 Kf7 53. Kh4 Kg6 (53... Kg8 {looks sharper.} 54. Kh5 Kh7 55. Kh4 Kh8 56. Kh5 Kh7) 54. Kh3 $1 Kg5 (54... Kh7 {is more complex.} 55. Kg3 Kg8 56. Kh4 Kf8 57. Kh5 Kg7) 55. Kg3 h5 56. gxh5 Kxh5 {KPP-KP} 57. Kh3 $1 Kg6 58. Kg2 Kf7 59. Kf3 Ke6 60. Ke2 Kd6 61. Kd2 Kc5 62. Kc3 $1 Kc6 (62... Kb5 $5 63. Kb3 $8 Kc5 $11) 63. Kc2 Kb7 (63... Kb5 {is interesting.} 64. Kb3 Kb6 65. Kb2 Kb5 66. Kb3) 64. Kb3 Kc7 {Strongly threatening ...Kd7.} 65. Kc3 $1 Kd8 (65... Kc6 {feels hotter.}) 66. Kd2 Ke7 {And now ...Kf7 would win.} (66... Ke8 {keeps more tension.} 67. Ke2 Kf8 68. Kf2 Kg8 69. Kg2 Kh7) 67. Ke3 Ke6 {Threatening ...Kd6.} 68. Ke2 $1 f5 (68... Kd7 $5 {[%cal Rd7c6]} 69. Kd2 Ke7 $11) 69. exf5+ Kxf5 {( -> ...Ke4)} 70. Kf3 e4+ 71. Ke3 Ke6 72. Kxe4 {Weighted Error Value: White=0.08/Black=0.08} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.18"]
[Round "5.2"]
[White "Shankland, Sam"]
[Black "Abasov, Nijat"]
[Result "1-0"]
[ECO "E46"]
[WhiteElo "2691"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,93,0,0,0,0,-5,0,0,0,0,6,0,0,0,0,0,8,7,42,50,44,45,36,24,40,36,35,38,24,20,35,23,28,13,13,12,14,16,16,16,18,17,22,7,10,10,16,19,24,24,24,8,6,6,26,21,21,22,22,21,22,27,37,0,35,43,104,103,132,71,83,84,139,131,277,277,287,287,290,245,454,293]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1 {E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5.} Bb7 9. Bd3 Be7 10. O-O {The position is equal.} c5 11. dxc5 bxc5 12. Re1 {[#]} Nbd7 $146 ({Predecessor:} 12... Nc6 13. Bb1 Rc8 14. e4 dxe4 15. Nxe4 Nd4 16. Nxd4 cxd4 17. Rxc8 Bxc8 18. Qa4 Qb6 19. Nxf6+ Qxf6 20. Qxa7 {0-1 (31) Michalik,P (2585)-Navara,D (2719) Pardubice 2020}) 13. e4 c4 14. Bb1 dxe4 15. Nxe4 Nxe4 16. Bxe4 Bxe4 17. Rxe4 Bf6 18. Bc3 Bxc3 19. Rxc3 {[#] Rd4 is the strong threat.} Nb6 20. Qe2 Qd5 21. Re5 Qd6 22. g3 Rad8 23. h4 f6 24. Re4 Qd1+ 25. Kg2 Qxe2 26. Rxe2 Rd7 27. Rec2 Rfd8 28. Ra3 Kf7 29. Ra6 Rc7 30. Nd2 Rdd7 31. Ne4 Kg6 32. Ra5 Rd5 33. Ra3 Re5 34. Nd2 h5 35. Rac3 {[%cal Rd2c4]} Ra5 $1 36. a3 {[%cal Rd2c4]} Ra4 $1 37. Rc1 Kf5 38. b4 Kg6 39. Ne4 {[#] Black must now prevent Nc5.} Nd5 (39... Nd7 $1 $14) 40. Rf3 $16 {Hoping for Nc5.} c3 41. Nxc3 ({White should play} 41. Rd3 Nb6 42. Rdxc3 (42. Rcxc3 Rxc3 43. Rxc3 Ra6 $16) 42... Rxc3 43. Rxc3) 41... Ra6 42. Ne2 Re7 (42... Rxc1 $142 43. Nxc1 Nc7) 43. Nd4 Re4 {This move loses the game for Black.} (43... Rd7 $16) 44. Nb5 $18 Re2 45. Rd3 Ne7 46. Rc7 Rb6 $2 (46... Rc6 47. Rdd7 (47. Rxa7 Rcc2 $16) 47... Rxc7 48. Rxc7 (48. Nxc7 Nc6 $18) 48... Nf5 49. Rxa7 Rd2) 47. Nxa7 {Weighted Error Value: White=0.07/Black=0.16} 1-0

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.18"]
[Round "5.3"]
[White "Duda, Jan-Krzysztof"]
[Black "Van Foreest, Jorden"]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "2729"]
[BlackElo "2701"]
[Annotator "TA"]
[PlyCount "126"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,126,46,48,50,66,48,51,67,70,44,50,51,50,42,41,40,54,20,16,21,10,8,60,45,48,55,48,50,54,0,99,63,83,0,0,0,8,15,41,61,106,64,127,106,95,22,59,42,51,39,43,42,43,43,43,36,42,42,43,55,133,114,141,110,175,166,153,154,155,131,346,55,66,39,269,243,254,254,189,0,0,0,0,0,0,0,0,7,12,8,8,17,48,8,20,26,26,0,46,45,45,45,45,45,37,44,610,610,556,530,535,548,29991,29992,29995]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 Be7 7. Re1 b5 8. Rxe4 {The main line 8.Rxe4 scores better than 8.Bb3. C84: Closed Ruy Lopez: Unusual White 6th moves.} d5 9. Nxe5 Nxe5 10. Rxe5 {White is slightly better.} bxa4 11. Qe2 Be6 12. f4 g6 13. Nc3 a3 14. b3 Bb4 {[#]} 15. Nxd5 $146 ({Predecessor:} 15. Na4 O-O 16. Bd2 Bd6 17. Nc5 Bf5 18. Bb4 Bxe5 19. fxe5 Qh4 20. c3 a5 21. Bxa3 {1-0 (33) Alekseenko,K (2637)-Ernst,S (2540) Caleta 2019}) 15... O-O 16. Qe4 $36 {[%mdl 2048] White is more active.} Bd6 17. Nc3 Bf5 (17... Qd7 $11) 18. Rxf5 $14 gxf5 19. Qxf5 Re8 20. Ne4 {Hoping for Ng5!} Be7 21. Be3 ({Better is} 21. c3 $14) 21... Qc8 (21... Bh4 $1 $11 {keeps the balance.} 22. d5 (22. g3 Qc8 $15) 22... Qc8 23. Nf6+ Bxf6 24. Qxf6 Rxe3) 22. Ng3 Bh4 23. Qd3 (23. Qxc8 $1 $16 Raxc8 24. Nf5) 23... Bxg3 $11 24. hxg3 Qe6 25. Kf2 Qe4 26. Rd1 a5 27. g4 (27. Qxe4 {keeps more tension.} Rxe4 28. g4 Re7 29. Kf3 c6 30. Rd3) 27... c6 ({Black should try} 27... Qg6 $14) 28. Qxe4 $16 Rxe4 {[%mdl 4096] Endgame KRR-KRB} 29. g5 (29. Kf3 $16 Ree8 30. g5) 29... Rae8 30. Rd3 h6 31. gxh6 f5 $1 32. c4 R4e6 33. d5 cxd5 34. cxd5 Rxh6 35. d6 {Strongly threatening Bb6.} Rd8 36. Bc5 Kf7 ({Black should play} 36... Rh1 $1 $14) 37. Rd5 $1 Kf6 38. Bxa3 Rh4 (38... Rh2 $16) 39. Kf3 $18 ({Inferior is} 39. Rxa5 Rxf4+ 40. Ke3 Re4+ 41. Kf3 Rg8 $11) 39... Rh1 40. Rxa5 Rf1+ 41. Ke3 Re8+ $2 (41... Rd1 $16 42. Bb2+ Ke6) 42. Kd3 $2 ({White has to play} 42. Re5 $1 $18 Rxe5+ 43. fxe5+ Ke6 44. Bc5) 42... Rxf4 $14 43. Bc5 {aiming for Bb6.} Rg4 $2 (43... Rg8 $14) 44. Bd4+ Ke6 45. Re5+ Kd7 {[#]} 46. Rxf5 $2 (46. Rxe8 $1 $18 Kxe8 47. a4) 46... Kxd6 $11 47. a4 Rxg2 48. b4 Rg4 49. Bc5+ Ke6 50. Rh5 Reg8 (50... Rb8 {is more complex.} 51. Rh6+ Kd7 52. Rd6+ Kc7 53. Kc3 Rh8) 51. Kc3 R8g5 52. Rh6+ Rg6 53. Rh8 Kd5 54. Rd8+ Kc6 55. a5 {[%cal Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Rh4 56. Kb3 Rh1 57. Rc8+ Kb7 58. Rf8 Kc6 59. Bd4 Rd1 $2 {[%mdl 8192] [#]} (59... Rg4 $14 60. Rf6+ Kd5) 60. a6 $1 $18 {[%cal Ra6a7] White wants to mate with a7.} Rb1+ 61. Ka4 {Threatening mate with a7.} Kd5 62. Bf6 Kc6 63. a7 Kd5 {Weighted Error Value: White=0.22/Black=0.45} 1-0

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.18"]
[Round "5.4"]
[White "Grandelius, Nils"]
[Black "Wojtaszek, Radoslaw"]
[Result "1/2-1/2"]
[ECO "C84"]
[WhiteElo "2670"]
[BlackElo "2687"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,61,10,7,8,12,10,10,10,22,18,28,18,22,12,15,0,0,0,0,-29,33,0,0,0,17,18,29,3,12,5,14,0,6,18,27,0,0,0,21,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 O-O 9. a4 Bd7 10. Bc2 Re8 11. Re1 h6 {11...Bf8 is vanishing.} 12. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3,Bg3e4][%mdl 32]} Bf8 13. h3 {C90: Closed Ruy Lopez with 7...d6: Early deviations.} Rb8 14. axb5 axb5 15. Nf1 b4 16. Ng3 bxc3 17. bxc3 {[#]} Ra8 $146 ({Predecessor:} 17... Qc8 18. d4 Ra8 19. Be3 Rxa1 20. Qxa1 exd4 21. cxd4 Nb4 22. Bb1 Qa6 23. Qc3 c5 {1-0 (48) Koelewijn,A (2282)-Carter,M (2068) ICCF email 2017}) 18. Rb1 d5 19. Bb3 dxe4 20. Nxe4 Be6 21. Be3 Nd5 (21... Nxe4 $11 22. dxe4 Qxd1 23. Rexd1 Bxb3 24. Rxb3 Ra4) 22. Bd2 (22. Ba4 $5 {[%cal Ra4c6]} Bd7 23. Bd2 $11) 22... Nb6 23. Bc2 Nd5 24. Ba4 Bd7 25. Bb3 Nf6 26. Ng3 Bd6 27. Qc2 Be6 28. Ba4 Bd7 29. Bb3 Be6 30. Ba4 Bd7 31. Bb3 {An uneventful encounter.  Weighted Error Value: White=0.09/Black=0.09} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.19"]
[Round "6.1"]
[White "Wojtaszek, Radoslaw"]
[Black "Abasov, Nijat"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2687"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,107,27,22,8,22,8,13,20,19,23,21,25,28,16,18,18,32,14,19,35,36,50,43,46,34,84,81,76,84,77,82,66,78,101,81,80,64,101,25,126,138,163,86,87,85,135,131,322,123,127,101,112,104,129,154,220,220,220,220,220,220,216,215,204,204,182,180,494,479,479,479,471,460,493,477,548,547,521,521,503,499,485,485,690,690,1009,960,29974,29975,29975,29976,29976,29976,29977,29977,29977,29975]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 h6 7. Bh4 O-O {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. e3 Bf5 9. Qb3 Bxc3+ {The position is equal.} 10. bxc3 {10.Qxc3 is more advanced technology.} Nbd7 11. Be2 c5 12. dxc5 Nxc5 13. Qb4 Rc8 14. O-O g5 15. Bg3 {[#]} Qe7 $146 ({Predecessor:} 15... Re8 16. Rad1 a5 17. Qa3 Qb6 18. c4 dxc4 19. Rd6 Rc6 20. Rxc6 bxc6 21. Bxc4 Nce4 {0-1 (47) Giri,A (2763)-Maghsoodloo,P (2676) Chess.com INT 2020}) 16. Be5 Rfd8 17. Rad1 Nfe4 {...g4 is the strong threat.} 18. Bd4 Rd6 19. c4 Rb6 20. Qe1 dxc4 21. Bxc4 Be6 22. Be2 Rd6 23. Ne5 Bxa2 24. f3 Nf6 25. Qa5 (25. f4 $16 {Threatens to win with Qa5.} Nfe4 26. fxg5 hxg5 27. Bh5) 25... Qe6 26. Qxa7 $16 (26. Bxc5 $6 Rxd1 27. Rxd1 b6 $11) 26... b6 {[#]} 27. Ba1 (27. f4 $1 $18 {[%cal Rf4g5]} Bb3 28. Rc1) 27... Rxd1 28. Rxd1 Qb3 29. Kf1 {Hoping for Nc6!} Re8 $2 (29... Qe6 $16 {was worth a try.}) 30. Bd4 $2 (30. Nc6 $18 Nfd7 31. e4) 30... Qe6 31. Ra1 Bd5 32. e4 Nb3 33. exd5 Qxd5 (33... Nxd5 $16 34. Bb5 Rf8) 34. Bc3 $18 Nxa1 35. Bc4 (35. Qxb6 $6 Rc8 $16) 35... Qd1+ 36. Be1 Nd7 37. Bxf7+ $40 {[%mdl 128] Black is in trouble.} Kf8 38. Bxe8 (38. Nxd7+ Kxf7 39. Ne5+ Ke6 $16) 38... Kxe8 39. Nxd7 {Strongly threatening Nf6+.} Qd3+ $2 (39... Nc2 {is a better chance.} 40. Nf6+ Kf8 41. Qa8+ Ke7 42. Ng8+ {[%mdl 64] Double Attack} Kf7 43. Nxh6+ Kg6 44. Qc6+ Kh7 45. Qc7+ (45. Qe4+ Kxh6 46. h4 Nxe1 $16) 45... Kxh6 46. Qxb6+ Kg7 47. Qc7+ Kg6) 40. Kf2 {Black must now prevent Nf6+.} Qd4+ 41. Ke2 (41. Kf1 Qd3+ 42. Kf2 Qd4+ 43. Ke2 Qc4+ 44. Kf2 Qd4+ $18) 41... Qc4+ {[#]} 42. Ke3 $1 {And now Nf6+ would win.} ({But not} 42. Kf2 Qd4+ 43. Ke2 Qc4+ 44. Ke3 Nc2+ 45. Kd2 Nxe1 $18) 42... Nc2+ 43. Kd2 Nxe1 44. Nf6+ {[%mdl 64] Zwischenzug} (44. Kxe1 Qe6+ 45. Kf2 Qxd7 $11) 44... Kf8 45. Qb8+ ({Not} 45. Kxe1 Qc3+ 46. Kf2 Qd4+ 47. Ke2 Qxf6 $11) 45... Ke7 46. Qe5+ ({Stronger than} 46. Kxe1 Qc1+ 47. Ke2 Qc2+ 48. Kf1 Qd1+ 49. Kf2 Qd4+ 50. Kf1 Qd1+ 51. Kf2 Qd4+ 52. Kf1 Qd1+ $11) 46... Kf7 47. Kxe1 Qc1+ (47... Qh4+ $142 48. g3 Qb4+ 49. Kf2 Qd2+ 50. Kg1 Qd1+ 51. Kg2 Qc2+ 52. Kh3 Qc8+ 53. Ng4 Qe6) 48. Kf2 Qd2+ 49. Kg3 Qf4+ 50. Qxf4 {White mates.} gxf4+ 51. Kxf4 Kxf6 52. Ke4 Ke6 53. g4 b5 54. f4 {Weighted Error Value: White=0.09/Black=0.40} 1-0

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.19"]
[Round "6.2"]
[White "Nguyen, Thai Dai Van"]
[Black "Shankland, Sam"]
[Result "1/2-1/2"]
[ECO "D39"]
[WhiteElo "2577"]
[BlackElo "2691"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,87,8,29,10,40,33,40,40,32,36,36,37,39,35,34,36,39,19,51,50,53,52,53,47,46,42,48,15,13,12,39,39,46,50,48,37,39,33,41,40,45,45,45,45,45,45,45,0,45,38,45,0,0,0,0,0,48,48,48,38,38,38,38,38,38,38,38,38,38,38,38,37,37,37]} 1. d4 {RR} Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 6. e4 h6 7. Bxf6 Qxf6 8. Bxc4 c5 9. O-O {Nb5 is the strong threat. D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} cxd4 10. Nb5 {[#] aiming for Nc7+.} Qe7 11. Qxd4 O-O 12. Nxa7 Bc5 13. Nxc8 Rxc8 14. Qd3 Nc6 15. Qe2 Rd8 16. Rad1 Nd4 17. Nxd4 Rxd4 18. Rxd4 Bxd4 19. g3 {[#]} Rd8 $146 ({Predecessor:} 19... Qb4 20. Kg2 Rd8 21. Rd1 Bb6 22. a3 Qc5 23. b4 Qc7 24. Rxd8+ Qxd8 25. a4 Qd6 26. a5 Bc7 27. Qb2 Bd8 28. Be2 Bf6 29. Qb3 Qd2 30. Qc4 Bc3 31. Qd3 {½-½ (31) Moranda,W (2572)-Gajewski,G (2568) Katowice 2010 EXT 2016 [RR]}) 20. Kg2 Bb6 21. Bb3 (21. a3 {looks sharper.} Rd4 22. Rc1 Qd6 23. Rc2 g6 24. Qf3) 21... Qb4 22. Rd1 Rxd1 23. Bxd1 Bd4 24. b3 Bc5 25. h4 g6 26. a4 h5 27. Qf3 b5 28. Qe2 bxa4 29. bxa4 Bb6 30. Qf3 Qd4 31. Bc2 Kg7 (31... Qd2 $5 {[%cal Rd2c2]} 32. Bb1 Bd4 $11) 32. Qf4 Qc3 33. Bd1 (33. Qc1 {is more complex.} Qb4 34. Qa1+ Kg8 35. Qd1 Qc5 36. Qe2) 33... Qd4 34. Bb3 (34. Qf3 {feels hotter.} Kg8) 34... Qc3 35. Qf3 Qxf3+ (35... Qe1 {seems wilder.} 36. Bc2 Qd2 37. Bd1 Bxf2 38. Qxf2 Qxd1 39. a5 Qa1) 36. Kxf3 $11 {[%mdl 4096] Endgame KB-KB. White is slightly better.} Kf6 37. Bc4 Ke5 38. Bb5 f5 39. exf5 exf5 40. Be8 Kf6 41. Ke2 Ba5 42. f3 Bb4 43. f4 Ba5 44. Kf3 {Weighted Error Value: White=0.05/Black=0.07} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.19"]
[Round "6.3"]
[White "Van Foreest, Jorden"]
[Black "Navara, David"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "2701"]
[BlackElo "2697"]
[Annotator "TA"]
[PlyCount "159"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,158,1,8,4,0,8,7,4,8,24,0,-16,-22,-22,-33,-29,-19,-20,-25,-25,-36,-10,20,26,22,24,23,2,0,8,0,-1,20,38,29,23,20,17,45,25,30,10,16,10,9,12,9,12,8,8,8,8,8,8,12,13,36,31,31,34,31,35,74,64,82,75,58,41,92,83,85,83,91,83,89,87,82,89,83,65,73,38,38,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,0,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8]} 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 {A20: English Opening: 1...e5.} Nf6 7. Nc3 Qe5 $1 {7...Qe5 scores better than 7...Qh5.} 8. Bg2 Na6 9. O-O Be7 {[#]} 10. Nxe4 $146 ({Predecessor:} 10. Re1 Be6 11. d4 exd3 12. exd3 Qd6 13. Be3 O-O 14. Nd4 Bg4 15. Bf3 Qd7 16. Ne4 {½-½ (54) Vachier Lagrave,M (2778)-Ding,L (2791) chess24.com INT 2020}) 10... Nxe4 11. f4 $1 {[%cal Rf4e5]} Qe6 12. f5 $1 {[%cal Rf5e6]} Qd5 13. d4 Bf6 (13... Bxf5 $6 14. Ne3 $16) 14. g4 O-O $1 15. g5 Bxg5 16. Bxg5 {[%mdl 64] Pin} Bxf5 {[#] aiming for ...Bh3.} 17. Ne3 $1 $36 {[%mdl 2048] White has some pressure.} Qe6 {[#]} 18. d5 $1 cxd5 19. Nxf5 {Be3 is the strong threat.} Nxg5 20. Qd4 {[%csl Gf5][%cal Rd4g7]} Qf6 (20... Qb6 {feels hotter.} 21. Ne7+ Kh8 22. Qxb6 axb6 23. Nxd5 b5) 21. Qxf6 ({Much worse is} 21. Bxd5 Qxd4+ 22. Nxd4 Rad8 $17) 21... gxf6 22. Ne7+ {[%mdl 64] Discovered Attack} Kg7 23. Nxd5 Rae8 24. Rf2 {[%mdl 1024] White has compensation.} ({Don't play} 24. Rxf6 Rxe2 25. Rf5 Ne6 $11) 24... Re6 25. Nf4 Rb6 26. h4 Ne6 ({But not} 26... Rxb2 $6 27. hxg5 fxg5 28. Nd3 $16) 27. Nh5+ {[%mdl 64] Discovered Attack} Kh8 28. b3 f5 29. Rxf5 Nd4 30. Re5 Re6 31. Rxe6 fxe6 32. Ng3 Nc5 33. Rc1 b6 34. b4 Na6 35. Rc4 e5 36. a3 Nb5 37. Rc1 Nb8 38. Ne4 Nxa3 {[#]} (38... Nd7 $14) 39. Nd6 $1 $16 a6 40. Rc7 Nb5 41. Nxb5 axb5 {[%mdl 4096] Endgame KRB-KRN} 42. Bb7 Rd8 43. Re7 Nd7 44. Bc6 Nf8 45. Rxe5 Rd6 $1 {[%cal Rd6c6]} 46. Be8 (46. Bf3 {is more complex.} Ng6 47. Rh5 Kg7 48. Kf2 Re6 49. Kg3) 46... Re6 $1 {[%cal Re6e5] The position is equal.} 47. Rxe6 Nxe6 48. Bxb5 $11 {With the idea Kf2. KB-KN} Nd4 $1 {[%cal Rd4b5]} 49. Bd3 b5 $1 50. Kf2 {Hoping for Be4.} Nc6 $1 51. Ke3 Kg7 52. Bxb5 Nxb4 53. Kd4 Nc2+ 54. Ke4 {White wants to play Bd3.} Kf6 55. Bd3 Nb4 56. Bb5 h6 57. h5 Nc2 58. Ba4 Ne1 59. Bc6 Nc2 60. Bb7 {And now Kd3 would win.} Na3 61. Ba6 Nc2 $1 62. Bb5 Kg5 63. Ba4 Ne1 64. Ke5 Ng2 65. Bc6 Ne3 66. Be8 Ng4+ 67. Ke6 Ne3 68. Bg6 Kf4 69. Bd3 {Strongly threatening Kf6.} Kg5 70. Bg6 (70. Be4 {is interesting.} Kxh5 71. Kf6 Kg4 72. Kg6 Kf4 73. Bd3) 70... Kf4 71. Bf7 Kg5 72. Be8 Nf5 73. Ke5 Ng3 74. e3 Nf5 75. e4 Ng3 76. Bg6 Nxe4 $1 77. Kxe4 {Intending Ke5 and mate.} Kf6 78. Kd5 Kg7 79. Ke6 Kh8 80. Kf7 {Weighted Error Value: White=0.03/Black=0.03} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.19"]
[Round "6.4"]
[White "Grandelius, Nils"]
[Black "Duda, Jan-Krzysztof"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2670"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,72,46,45,91,75,105,56,59,70,120,118,115,133,139,129,162,166,208,213,216,203,212,231,223,209,270,100,100,0,0,-40,-46,-80,-61,-62,-66,-109,-97,-100,-103,-197,-190,-230,-219,-295,-293,-303,-304,-256,-258,-335,-341,-725,-725,-971,-960,-1545,-1520]} 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 Nh6 7. Bxh6 gxh6 8. Qd2 Bd7 9. O-O O-O-O {C02: French: Advance Variation.} 10. Na3 Rg8 11. dxc5 Bxc5 {White is slightly better.} 12. b4 Bf8 {[#]} 13. Nb5 $146 ({Predecessor:} 13. Qf4 Rg7 14. Rab1 Kb8 15. c4 Nxb4 16. Nc2 Qa5 17. Nxb4 Bxb4 18. cxd5 Bc5 19. g3 {1-0 (29) Durarbayli,V (2606)-Ruperez Benito,A (2363) Tornelo INT 2020}) 13... Nxb4 {[#]} 14. Nxa7+ {[%mdl 512]} Qxa7 (14... Kb8 15. cxb4) 15. cxb4 Rg4 16. a3 Ba4 17. h3 Rg7 18. Rfc1+ Kb8 19. Qc3 {Intending Qc7+ and mate.} Qb6 20. Nd4 Be7 21. Qe3 (21. b5 $1 $18 {is the precise move to win.}) 21... Rdg8 {[#]} 22. Bf1 (22. Nc6+ $1 $16 Qxc6 23. Rxc6 Rxg2+ 24. Kh1 Bxc6 25. Qd4) 22... Bg5 $1 $11 {[%cal Rg5e3]} 23. f4 {Hoping for Nc6+!} Bd8 $1 24. Kh1 Rg3 25. Qd2 Qa7 $1 26. Rc3 {[#]} Rxc3 $1 27. Qxc3 Bb6 28. Nf3 {[#]} (28. Nb3 $17) 28... Rc8 $1 $36 {[%cal Rc8c3][%mdl 2048] Black is in control.} 29. Qe1 Bf2 30. Qb1 Bc2 31. Qb2 Be3 32. a4 Be4 {Threatens to win with ...Bxf3.} ({Much less strong is} 32... Bxf4 33. Nd4 $17) ({Stronger than} 32... Bxa4 33. b5 $16) 33. Qe2 Bxf4 34. a5 $2 (34. Qe1) 34... Rc2 {Black is clearly winning.} 35. Qd1 Qf2 {aiming for ...Qg3.} 36. a6 Be3 {What a bad dream for White.  Weighted Error Value: White=0.65/Black=0.07} 0-1

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.20"]
[Round "7.1"]
[White "Navara, David"]
[Black "Grandelius, Nils"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "2697"]
[BlackElo "2670"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,63,18,24,31,25,25,14,21,19,19,19,13,7,18,21,6,17,25,2,5,16,29,18,56,53,64,22,27,25,28,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nf6 6. Nc3 g6 {B52: Sicilian: Moscow Variation with 3...Bd7.} 7. d4 cxd4 8. Qxd4 Nc6 9. Qd3 Bg7 10. O-O O-O 11. Bd2 {[#]} Rad8 $146 ({Predecessor:} 11... Rfc8 12. Rac1 Qd8 13. b3 Nd7 14. Rfd1 Nc5 15. Qb1 a5 16. Be3 b6 17. a3 Qc7 {1-0 (119) Kasparov,S (2478)-Alonso Moyano,J (2409) Llucmajor 2013}) 12. Rad1 Ng4 13. b3 f5 14. h3 Nge5 15. Nxe5 Nxe5 16. Qg3 fxe4 17. Nxe4 Qf5 18. Qh4 d5 19. cxd5 Rxd5 20. Bb4 Rxd1 {The position is equal.} 21. Rxd1 h6 $1 {[#] aiming for ...g5.} 22. Bc3 g5 23. Qg3 Qxe4 24. Re1 Nf3+ 25. gxf3 Qxf3 26. Bxg7 Qxg3+ 27. fxg3 Kxg7 28. Rxe7+ $11 {KR-KR} Rf7 29. Re6 Rf6 30. Re7+ Rf7 31. Re6 Rf6 32. Re7+ {Weighted Error Value: White=0.05/Black=0.03} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.20"]
[Round "7.2"]
[White "Shankland, Sam"]
[Black "Van Foreest, Jorden"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2691"]
[BlackElo "2701"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,123,14,8,9,0,0,-1,20,17,26,20,26,25,25,25,25,25,25,32,32,33,27,16,27,36,32,27,33,37,70,70,61,70,53,66,69,1,0,0,0,0,48,33,39,20,35,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,460,444,693,668,668,662,579,542,769,729,858,858,851,701,858,843,805,805,729,639,766,674,5816,5700,3853,3855,12850,12839,12841,12672,12835,11822,29942,29958,29956,29962,29981,29982]} 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. d4 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bf4 Bd6 {E05: Open Catalan: 5 Nf3 Be7.} 11. Qc1 Nbd7 12. Nc3 Ne4 {The position is equal.} 13. Rd1 {[#]} Nxc3 $146 ({Predecessor:} 13... Qe7 14. Qc2 Nxc3 15. bxc3 Bxf4 16. gxf4 Nf6 17. Qb3 Be4 18. Ne5 c5 19. dxc5 Qxc5 {½-½ (33) Esipenko,A (2624)-Sjugirov,S (2662) Douglas 2019}) 14. bxc3 a5 15. c4 {[%cal Bc3c4,Bc4c5][%mdl 32] [#] Threatens to win with d5.} Bxf4 16. Qxf4 Nb6 17. Rdc1 Bxa4 18. Qd2 Bc6 19. c5 Nd7 20. Rxa5 Rxa5 21. Qxa5 b6 22. cxb6 cxb6 23. Qa7 Be4 24. e3 Nf6 25. Ne5 Bxg2 26. Kxg2 h5 27. h3 ({White should try} 27. Qb7 $14) 27... Qd5+ $11 28. Kg1 Ne4 29. h4 Qa5 30. Ra1 Qc3 31. Ra2 Qb3 32. Kg2 Qd5 {White must now prevent ...Nc3+.} 33. Kg1 Kh7 34. Nxf7 Qf5 35. Ng5+ Nxg5 36. hxg5 {[%mdl 4096] Endgame KQR-KQR} h4 37. gxh4 ({Much weaker is} 37. Qxb6 hxg3 38. f3 (38. fxg3 {leads to mate.} Kg6 39. Kh2 Rh8+ 40. Kg1 Qe4 41. Rh2 Qxe3+ {[%mdl 64] Double Attack} 42. Kh1 Qe1+ 43. Kg2 Qe2+ 44. Kg1 Qxh2+ {[%mdl 64] Double Attack} 45. Kf1 Rf8+ 46. Ke1 Qxg3+ {[%mdl 64] Double Attack} 47. Kd1 Rf1+ 48. Ke2 Rf2+ 49. Ke1 Qg1#) 38... Qxf3 $17) 37... Qg4+ 38. Kf1 Rc8 {[%cal Rc8c1]} 39. Qa3 Qd1+ 40. Kg2 {Hoping for Qd6.} Rc1 {And now ...Qg4+ would win.} 41. Kg3 {Qa8 is the strong threat.} Qg1+ 42. Kf4 Qh2+ {[%mdl 64] [#] Double Attack} 43. Ke4 Qg2+ $2 {[%mdl 8192] White stays focused until the end.} (43... Qh1+ $11 {and Black stays safe.} 44. f3 Qxh4+ 45. Kd3 Rd1+ 46. Rd2 Rxd2+ 47. Kxd2 Qf2+ 48. Kc1 Qg1+ 49. Kd2 Qg2+ 50. Ke1 Qg1+ 51. Ke2 Qg2+ 52. Ke1 Qg1+ 53. Ke2 Qg2+ 54. Ke1) 44. f3 $18 Qh3 (44... Rc2 $142) 45. Qf8 {White wants to mate with g6+!} Rc8 46. Qf7 Qxh4+ 47. Qf4 Qxf4+ 48. Kxf4 {KR-KR} b5 49. Rb2 Rb8 50. Ke5 Rb6 51. Rb4 Kg6 52. f4 Kf7 53. e4 Ke7 54. d5 g6 55. dxe6 Rxe6+ 56. Kd5 Rd6+ 57. Kc5 Rd1 58. Rxb5 Rf1 59. Rb7+ Ke8 60. f5 {White mates.} gxf5 61. g6 fxe4 62. Rb8+ {Weighted Error Value: White=0.08/Black=0.50} 1-0

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.20"]
[Round "7.3"]
[White "Abasov, Nijat"]
[Black "Nguyen, Thai Dai Van"]
[Result "1/2-1/2"]
[ECO "C52"]
[WhiteElo "2665"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,109,1,0,-2,-32,-24,-20,0,-8,0,-27,11,-33,34,35,34,20,35,24,50,55,54,36,36,25,26,29,33,29,35,9,9,11,13,17,48,45,46,46,39,37,28,18,19,19,19,0,3,0,0,0,0,0,0,0,0,0,0,0,7,7,7,7,7,7,22,22,22,22,22,0,0,0,0,0,0,6,31,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 {Adhiban,B} e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Qb3 Qd7 8. O-O Bb6 {C52: Evans Gambit Accepted: 5 c3 Ba5.} 9. Nbd2 $1 {[%mdl 4] now scores much better than the old 9.Bb5.} Na5 10. Qc2 Ne7 11. dxe5 O-O 12. Ba3 {[#]} Bc5 $146 ({Predecessor:} 12... Ng6 13. exd6 cxd6 14. Nd4 Bc5 15. Bb4 Nxc4 16. Nxc4 Bxb4 17. cxb4 d5 18. exd5 Qxd5 {0-1 (72) Adhiban,B (2665)-Le,Q (2718) Tashkent 2016 CBM 173 [Adhiban,B]}) 13. Bb4 Bxb4 (13... Nec6 $15) 14. cxb4 $14 Nac6 15. exd6 Qxd6 16. b5 Ne5 17. Nxe5 Qxe5 18. f4 Qc5+ 19. Rf2 {[#] Bxf7+! is the strong threat.} Be6 20. Rc1 {Threatens to win with Bxe6.} Bxc4 21. Qxc4 Qb6 22. Qc5 ({But not} 22. Qxc7 $2 {[#]} Rfc8 $1 $19) (22. g3 {seems wilder.} Rac8 23. Qb3 c6 24. Nc4 Qc5 25. Rd1) 22... Qxc5 23. Rxc5 c6 24. bxc6 Rac8 25. c7 Nc6 26. Nc4 Rxc7 27. Na5 f6 28. Nxc6 Rxc6 29. Rxc6 bxc6 $11 {[%mdl 4096] Endgame KR-KR} 30. Rc2 Rb8 31. Rxc6 Rb1+ 32. Kf2 {And now Rc8+ would win.} Rb2+ 33. Kf3 {Strongly threatening Rc8+.} Rxa2 34. Rc8+ Kf7 35. Rc7+ Kf8 36. h4 Ra5 37. Ke3 Ra4 38. h5 h6 39. Kf3 Kg8 40. e5 fxe5 41. fxe5 Kf8 42. g4 Kg8 43. e6 {Hoping for Rc8+.} Kf8 44. Rf7+ Kg8 $1 45. Rf5 {e7 would kill now.} Rb4 46. e7 Rb8 {The position is equal.} 47. Ra5 Kf7 48. Rxa7 Re8 49. Kf4 (49. g5 {with more complications.} hxg5 50. Kg4 Rxe7 51. Ra5 Re1 52. Ra7+) 49... Rxe7 50. Rxe7+ Kxe7 51. g5 hxg5+ 52. Kxg5 {KP-KP} Kf7 53. h6 Kg8 54. Kg6 gxh6 55. Kxh6 {Weighted Error Value: White=0.06/Black=0.07} 1/2-1/2

[Event "Prague Festival Masters 2021"]
[Site "Prague"]
[Date "2021.06.20"]
[Round "7.4"]
[White "Duda, Jan-Krzysztof"]
[Black "Wojtaszek, Radoslaw"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2729"]
[BlackElo "2687"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2021.06.13"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,73,25,18,5,8,10,8,10,19,12,27,17,18,11,28,12,10,10,11,16,27,0,3,0,0,-13,40,29,16,18,29,0,0,0,8,0,43,-16,-23,-20,0,0,0,0,0,0,392,368,29995,29996,29996,29997]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 O-O 9. a4 Bd7 10. Bc2 Re8 11. Re1 h6 {11...Bf8 is not played anymore.} 12. Nbd2 Bf8 13. Nf1 {C90: Closed Ruy Lopez with 7...d6: Early deviations.} d5 {has lost popularity (13...b4).} 14. exd5 Nxd5 15. Bd2 {The position is equal.} b4 {[#]} 16. a5 $146 ({Predecessor:} 16. Ng3 Nf6 17. a5 Rb8 18. Bb3 Bg4 19. Bc4 Qc8 20. h3 Be6 21. Nxe5 Nxe5 22. Rxe5 Bxc4 23. Rxe8 Qxe8 24. dxc4 {½-½ (41) Cusicanqui,M (2385)-Vila Hernandez,C (2252) ICCF email 2015}) 16... bxc3 17. bxc3 Nf6 18. Ng3 Rb8 19. Ba4 Bd6 20. Qc2 Na7 21. Bb3 Be6 22. Bxe6 Rxe6 23. d4 {[%cal Rd4e5]} Nc6 24. Rad1 exd4 ({Black should try} 24... Qd7 $11) 25. Rxe6 $14 fxe6 26. cxd4 Qe8 27. Re1 Rb5 28. Ne4 Nxe4 29. Qxe4 Qd7 30. Bxh6 gxh6 $11 31. Qg6+ {[%mdl 64] [#] Double Attack} Kh8 {White must now prevent ...Bf8.} 32. Qxh6+ Qh7 33. Qf6+ Qg7 34. Qxe6 {Threatens to win with Qe8+.} Nxd4 $2 {[%mdl 8192] [#]} (34... Ne7 $1 $11 {and Black is okay.}) 35. Nxd4 $18 Qxd4 (35... Re5 $18 36. Rxe5 Qxe5) 36. Qh6+ Kg8 37. Re8+ {Weighted Error Value: White=0.10/Black=0.74} ({Weaker is} 37. Qg6+ Qg7 $17) 1-0

