[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.1"]
[White "Kozak, Antoni"]
[Black "Urkedal, Frode Olav Olsen"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2356"]
[BlackElo "2553"]
[Annotator "TA"]
[PlyCount "131"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,131,9,17,8,7,7,6,10,13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-12,-9,-7,-11,-7,-13,-8,-15,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,143,0,0,-52,-52,-66,-66,-81,-81,-81,-72,-81,-74,-74,-74,-81,-81,-81,-81,-81,-61,-61,-61,-61,-61,-61,-61,-68,0,-61,-61,-61,-61,-61,-61,-61,-61,-61,-61,-61,-61,-61,-61,-266,-237,-229,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 b6 5. Bb2 Bb7 6. d4 {A13: English Opening: 1...e6.} Be7 7. cxd5 Nxd5 8. Bb5+ c6 {[#]} 9. Bd3 $146 ({Predecessor:} 9. Be2 Nd7 10. O-O O-O 11. Nbd2 c5 12. Rc1 Rc8 13. a3 cxd4 14. Bxd4 Rxc1 15. Qxc1 {½-½ (28) Sipilae,V-Semmler,R (2386) ICCF email 2020}) 9... O-O 10. O-O Nd7 11. Nc3 Nxc3 12. Bxc3 c5 13. Rc1 Rc8 14. Qe2 cxd4 15. Bxd4 Bf6 {[#] And now ...Rxc1 would win.} 16. Ba6 Rxc1 17. Rxc1 Bxf3 18. Qxf3 Bxd4 19. exd4 Nf6 {[%cal Bd7f6,Bf6d5,Bd5e7,Be7f5][%mdl 32]} 20. Rc4 Nd5 21. Bb7 Ne7 22. Qf4 Nf5 23. Ba6 b5 24. Rc8 Qa5 $40 {[%cal Ra5e1][%mdl 128] [#] White needs to defend precisely.} (24... Qb6 $5 25. Qc7 Nxd4 $11) 25. Rxf8+ Kxf8 {[%cal Ra5e1]} 26. Qb8+ Ke7 {[%cal Ra5e1,Bf8e7,Be7f6,Bf6g6,Bg6h6,Bh6h7,Bh7g7][%mdl 32]} 27. Bxb5 Qxa2 (27... Nxd4 $11 28. Bf1 h6) 28. d5 (28. Qc7+ $16 Kf6 29. Qd8+ Kg6 30. g4 Qb1+ 31. Bf1) 28... Qxb3 $11 {aiming for ...Qb1+.} 29. Qxa7+ (29. d6+ $1 $11 Nxd6 30. Qxa7+ Kf6 31. Qd4+ Ke7 32. Qa7+ Kf6 33. Qd4+ Ke7 34. Qa7+) 29... Kf6 $15 30. Qa1+ Kg6 31. Ba4 Qxd5 32. Bc2 h5 33. h4 Kh6 34. Qc1+ Kh7 35. g3 g6 36. Bxf5 Qxf5 $17 {[%mdl 4096] Endgame KQ-KQ} 37. Qc3 e5 38. Kg2 Qe4+ 39. Kg1 Kg7 40. Qc7 Qf5 41. Qc3 Qe4 42. Qc7 $1 Qd5 {Prevents Qc5.} 43. Qe7 Qd1+ 44. Kg2 Qe2 45. Qd6 Qe4+ 46. Kg1 Qd4 47. Qe7 Qd5 48. Kh2 Qe6 49. Qxe6 ({White should play} 49. Qc7 $15) 49... fxe6 $15 {KP-KP} 50. Kg2 Kf6 $2 ({Black should try} 50... e4 $19 {White must now prevent ...Kf6.} 51. Kf1 Kf6) 51. Kf3 $11 {The position is equal.} Kf5 (51... g5 $5 52. Ke4 g4 $11) 52. Ke3 g5 (52... Kg4 $5 53. Ke4 Kh3 54. Kxe5 Kg2 $11) 53. hxg5 Kxg5 {K3P-KPP} 54. f3 Kg6 (54... Kf5 $5) 55. Ke4 Kf6 56. Ke3 Ke7 (56... Kf5 $5) 57. Kd3 Kd7 58. Ke4 Kd6 59. Kd3 Ke7 (59... Kd5 $5 60. Ke3 Kc6 $11) 60. Ke4 Kf6 61. Ke3 Kf5 62. g4+ $1 hxg4 63. fxg4+ Kxg4 64. Ke4 Kg5 {( -> ...Kf6)} 65. Kxe5 Kg6 66. Kxe6 {Weighted Error Value: White=0.14 (very precise) /Black=0.13 (very precise)} 1/2-1/2

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.2"]
[White "Mirzoev, Azer"]
[Black "Jurcik, Marian"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2420"]
[BlackElo "2397"]
[Annotator "TA"]
[PlyCount "1"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 1,1,26]} 1. d4 {An uneventful encounter.} 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.3"]
[White "Czerw, Dawid"]
[Black "Haring, Filip"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2396"]
[BlackElo "2398"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,73,24,23,11,9,32,16,16,19,19,16,53,37,66,49,52,35,36,24,32,22,56,50,66,69,65,61,88,79,100,91,115,113,131,123,129,133,134,112,137,141,192,128,136,114,136,129,184,187,207,214,211,165,211,160,275,254,354,345,1047,1042,29997,29998]} 1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Nf6 5. Qe2 Be7 6. O-O d6 7. c3 O-O {C00: French: Unusual White 2nd moves.} 8. d4 cxd4 9. cxd4 d5 {The position is equal.} 10. e5 Ne4 11. Rd1 Qb6 12. Be3 $1 Bd7 13. Ne1 $1 {[#] Hoping for Bxe4.} Nb4 {[#]} 14. Bxe4 $146 ({Predecessor:} 14. f3 Bb5 15. Nd3 Nxd3 16. fxe4 Nxe5 17. Qe1 Nc4 18. exd5 exd5 19. Nc3 Bc6 20. Bf2 {1-0 (34) Murzin,V (2519)-Aldokhin,I (2413) Chess.com INT 2021}) 14... dxe4 15. Nc3 Nd5 16. Nxe4 Nxe3 17. fxe3 Bc6 18. Nc3 a5 19. Nd3 a4 20. a3 f6 21. Rf1 Be8 22. exf6 {White is more active.} Bxf6 23. Ne4 Bb5 24. Nxf6+ gxf6 25. Rf2 Kh8 {[%cal Oe6e5]} 26. Qd2 e5 (26... Qd6 $16 27. Nb4 Bc4) 27. Nb4 ({White should try} 27. Qb4 $18) 27... Rad8 $16 {[%cal Re5d4]} 28. Rd1 {[%cal Ba1d1,Bd1e1,Be1e6,Be6f6][%mdl 32]} exd4 29. exd4 {[%cal Be3d4,Bd4d5][%mdl 32]} Be8 (29... Rd6 $16 {keeps fighting.} 30. d5 (30. Qh6 Kg8 $16) 30... Re8) 30. d5 $18 Bh5 31. Qd4 Qd6 32. Re1 Kg7 (32... Bg6 {is a better defense.} 33. Ref1 Kg7) 33. Qf4 Qd7 (33... Rfe8 $16 34. Rxe8 Bxe8 35. Qxd6 Rxd6) 34. Re6 Rde8 35. Rxf6 Re1+ $2 (35... Rxf6 36. Qxf6+ Kg8 37. Qg5+ Bg6) 36. Kg2 {[#] Qh6+ would kill now.} Rfe8 37. Qh6+ {Weighted Error Value: White=0.08 (flawless) /Black=0.43} 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.4"]
[White "Torngren, Gustav"]
[Black "Pijpers, Arthur"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "2228"]
[BlackElo "2485"]
[Annotator "TA"]
[PlyCount "121"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,121,-3,27,0,16,18,9,4,139,136,142,137,133,127,139,129,124,127,125,125,127,120,156,147,143,155,150,146,146,154,150,148,150,156,143,144,149,117,132,129,135,121,114,97,84,65,59,57,144,128,241,198,211,185,187,17,120,19,56,59,68,0,8,7,7,7,2,2,2,7,7,7,496,495,496,496,496,496,496,496,496,496,489,489,467,449,4133,4133,4133,4133,4133,4133,4126,8,8,8,8,8,8,8,8,8,8,8,8,8,8,-29985]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Nxf6+ Bxf6 7. Bxf6 Qxf6 8. Nf3 {[%cal Bg1f3,Bf3d4,Bd4b5][%mdl 32]} c5 9. Qd3 {[#] 9.Bb5+ is the modern continuation. C13: French: Classical System: 4 Bg5 Be7, Alekhine-Chatard Attack.} cxd4 $146 ({Predecessor:} 9... Nc6 10. O-O-O cxd4 11. Qe4 Bd7 12. Nxd4 Nxd4 13. Rxd4 Bc6 14. Qe3 O-O 15. f3 {½-½ (15) Kuipers,S (2435)-Das,A (2439) Leiden 2019}) 10. Qxd4 Qxd4 11. Nxd4 b6 (11... Bd7 $11) 12. Nb5 $1 $16 Kd8 {Prevents Nc7.} 13. Be2 {[%cal Bf1e2,Be2f3,Bf3c6,Bc6b5][%mdl 32]} Nd7 14. Bf3 {Inhibits Bb7.} Rb8 15. Nxa7 {White is more active.} Bb7 16. Nc6+ Bxc6 17. Bxc6 {0-0-0 is the strong threat.} Kc7 18. Bb5 g5 19. O-O-O Ne5 20. Rhe1 f6 21. Re3 {Strongly threatening Rc3+.} Rbd8 22. Rc3+ Kb7 23. Rxd8 Rxd8 {[%mdl 4096] Endgame KRB-KRN} 24. Rh3 Rh8 25. Be2 h6 26. c3 Kc7 27. Kc2 f5 28. Re3 Kd6 29. f3 h5 30. a4 h4 31. h3 Ra8 ({Better is} 31... Ng6 $14) 32. Bb5 Ng6 (32... Ra7 $16 {was called for.} 33. b4 Re7) 33. Re2 Nf4 34. Rd2+ Ke7 35. Kb3 $2 (35. Rd7+ $18 Kf6 36. Bc6) 35... Ra7 (35... Rd8 $1 $11 {remains equal.} 36. Rf2 (36. Rxd8 Kxd8 37. Bf1 Nd5 $11) 36... Rd1) 36. Bc4 (36. c4 $16) 36... e5 37. Kb4 Rd7 $1 38. Rc2 (38. Rxd7+ $14 Kxd7 39. Bf1) 38... e4 39. fxe4 fxe4 40. Kb5 Rd6 41. b4 {[%cal Bb2b4,Bb4a5,Ba5a6][%mdl 32] Threatening a5.} e3 42. a5 bxa5 43. bxa5 {Hoping for a6.} Rd2 $2 {[%mdl 8192]} (43... Kd8 $11 {and Black has nothing to worry.}) 44. Rxd2 $18 exd2 {KB-KN} 45. Bb3 Kd7 {[#]} 46. Kb6 $1 {Threatens to win with a6.} (46. a6 Kc7 47. c4 Ne2 $14) 46... Nd5+ {[#]} 47. Kb7 $1 {Black must now prevent a6.} Nxc3 48. a6 Nb5 49. Kb6 (49. Ba4 Ke6 $16) 49... Nd6 50. Ba4+ ({Weaker is} 50. a7 Nc8+ 51. Ka6 Nxa7 52. Kxa7 Kd6 $11) 50... Kd8 (50... Ke6 $142 51. Kc5 (51. a7 Nc8+ 52. Ka6 Nxa7 $11) 51... Nc8) 51. a7 Nc8+ 52. Ka6 Nxa7 53. Kxa7 {KB-K3P} Kc7 54. Bd1 $2 ({White must play} 54. Ka6 $18 {White threatens Kb5 and mate.} Kd6 55. Ka5) 54... Kd6 $1 $11 {The position is equal.} 55. Kb6 Ke5 $1 56. Kc5 Kf4 57. Kd4 Kg3 58. Bf3 {Intending Ke4 and mate.} g4 $1 59. Bxg4 {Ke3 would kill now.} (59. hxg4 h3 60. Kc3 hxg2 61. Bxg2 d1=Q 62. Be4 Qxg4 63. Bd5 Kf4 64. Kd4 Qd1+ 65. Kc4 Ke5 66. Bb7 Qc2+ 67. Kb5 Qc3) 59... Kxg2 60. Ke3 d1=Q 61. Ke4 $2 {[%mdl 40960] Inhibits Qd5+. A wild game.  Weighted Error Value: White=0.24 (precise) /Black=0.32. An unexpected result.} (61. Bxd1 $11 Kxh3 62. Bh5) 1/2-1/2

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.5"]
[White "Plischki, Sebastian"]
[Black "Mikes, Jan"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2375"]
[BlackElo "2329"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,81,30,25,34,25,29,36,68,18,108,101,116,128,120,124,108,103,131,138,185,126,119,119,151,150,122,114,97,100,132,139,134,132,187,177,184,173,225,231,234,222,224,170,221,202,373,365,368,329,347,352,507,493,701,717,904,888,714,232,470,458,653,638,1797,2358,29982,29983,29983,29984]} 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 O-O 6. Nge2 c5 7. d5 e6 8. Ng3 h5 {E81: King's Indian: Sämisch: 6th move deviations (including 6 Be3 c6).} 9. Bg5 {[%cal Oe4e5]} Qb6 {[%cal Of6d5]} 10. Qd2 Nh7 {White is slightly better.} 11. Bh4 {[#]} (11. Be3 $14) 11... g5 $146 (11... exd5 $1 $11 {remains equal.} 12. Nxd5 (12. cxd5 f6 $11) 12... Qxb2 13. Qxb2 Bxb2) ({Predecessor:} 11... Nd7 12. Be2 g5 13. Bxg5 Nxg5 14. Qxg5 Qxb2 15. Rc1 f6 16. Qe3 f5 17. dxe6 f4 {0-1 (80) Papasimakopoulos,A (2251)-Ghazarian,K (2220) Chess.com INT 2021}) 12. Bxg5 $16 (12. Na4 Qd8 13. Nxh5 gxh4 $19) 12... Nxg5 13. Qxg5 Qxb2 14. Rc1 f6 15. Qe3 f5 16. Nxh5 {Hoping for Qg5.} Bd4 (16... f4 $16 17. Qd2 Qxd2+ 18. Kxd2 Bd4) 17. Qd2 (17. Qg5+ $18 Kh7 18. Ne2) 17... Qxd2+ 18. Kxd2 fxe4 19. Nxe4 exd5 20. cxd5 Bf5 21. Nhg3 {Pair of Knights!} Bg6 22. Bd3 (22. Nxd6 Be5 $14) 22... Be5 23. Rb1 {White is more active.} Bf4+ {[#]} (23... Na6 $16) 24. Ke2 $1 $18 c4 25. Bxc4 Nd7 (25... b6 $142 26. Kf2 Nd7) 26. Rxb7 Ne5 27. Bb3 (27. Nxd6 $6 Rad8 $14) 27... a5 28. a4 Rac8 (28... Rab8 $142 29. Rxb8 (29. Nxd6 Nxf3 30. gxf3 Bxd6 $16) 29... Rxb8) 29. Rd1 Nc4 (29... Bxg3 {was necessary.} 30. Nxg3 (30. hxg3 Bxe4 31. fxe4 Rc3 $16) 30... Rb8 31. Rxb8 Rxb8) 30. Rd4 Ne3 {[#]} 31. Nxd6 $1 Bxd6 32. Kxe3 {Black must now prevent Rg4. Chess con chili.} Bc5 (32... Rb8 $142) 33. Ne4 Bxe4 (33... Rfe8 $142 34. Rb5 Kg7) 34. fxe4 Rb8 35. d6+ Kh8 36. Bd5 $2 (36. Rxb8 Rxb8 37. Bc4) 36... Rxb7 $2 (36... Bxd6 {was called for.} 37. Rd1 Rxb7 38. Bxb7 Bc5+ 39. Kd3 Kg7) 37. Bxb7 Rb8 {[#]} (37... Rf1 $142) 38. d7 $1 {Threatens to win with Bc8.} Kg7 (38... Rd8 39. Bc6) 39. Bc8 Bxd4+ 40. Kxd4 Rb1 41. Ke5 {Weighted Error Value: White=0.22 (precise) /Black=0.71} 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.6"]
[White "Carlsson, Ludvig"]
[Black "Koubova, Anna Marie"]
[Result "1-0"]
[ECO "D25"]
[WhiteElo "2355"]
[BlackElo "2148"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,105,41,51,45,48,52,27,84,31,49,16,93,102,178,50,73,33,40,29,55,-7,0,-25,-29,-32,-30,-539,-93,-106,-97,-116,-103,-116,-106,-103,-36,-33,-35,-41,-36,-41,121,109,116,112,140,140,140,140,153,145,145,8,174,181,595,345,626,495,469,463,450,439,926,901,1253,1141,1356,1356,1317,1210,1356,1326,1105,811,582,556,537,515,515,515,515,414,96,103,4618,4577]} 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 Bg4 5. Bxc4 e6 6. Nc3 a6 7. h3 Bh5 8. g4 Bg6 9. Ne5 Nbd7 10. Nxg6 hxg6 11. Bf1 Be7 {D22: Queen's Gambit Accepted: 3 Nf3 a6 4 e3.} 12. Bg2 c6 13. O-O {[#]} O-O $146 (13... Qc7 $11) ({Predecessor:} 13... Nd5 14. e4 Nxc3 15. bxc3 Qc7 16. e5 O-O 17. f4 b5 18. f5 gxf5 19. gxf5 exf5 20. Rxf5 Nb6 21. Qg4 Nd5 22. Bh6 g6 23. Rf3 Kh7 24. Bxf8 Rxf8 25. Raf1 Kg7 26. h4 {1-0 (26) Basso,P (2563)-Lazic,M (2409) Venice 2019}) 14. f4 (14. g5 $16) 14... Rc8 $14 15. h4 Nd5 (15... b5 $11) 16. g5 $16 Qc7 (16... Qe8 $16 {was called for.}) 17. Be4 (17. h5 $18) 17... f5 {aiming for ...Nxc3.} 18. gxf6 N7xf6 {And now ...Nxc3 would win.} 19. Bxg6 c5 20. Ne2 (20. Nxd5 $14 exd5 21. Rf2) 20... Ng4 21. Ng3 Nh6 {Pair of Knights!} (21... Ndxe3 $2 22. Bxe3 Nf6 23. Rc1 $18) 22. Ne4 cxd4 23. Ng5 $2 {[%mdl 8192]} (23. Qxd4 $11 {and White has nothing to worry.} Rcd8 24. Qe5) 23... Nxe3 $2 (23... dxe3 $19 {is more deadly.} 24. Nxe6 Qb6 25. Qxd5 e2+ 26. Nd4+ Kh8) 24. Bxe3 $17 dxe3 25. Nxe6 Qb6 26. Qb3 Qxb3 27. axb3 e2 (27... Rf6 $1 $17 {[%cal Rf6g6]} 28. f5 Rc6) 28. Rfe1 $15 (28. Rfc1 $2 Rxc1+ 29. Rxc1 Rf6 $19) 28... Rf6 29. Be4 {[%cal Oe1e2]} Kh8 $1 (29... Rxe6 $2 30. Bd5 Nf7 31. Bxe6 $18) 30. Bxb7 Rg6+ $2 (30... Re8 $1 $15 {stays ahead.} 31. Nc7 (31. Rxe2 $2 Rxe6 32. Rxe6 Bc5+ 33. Kg2 Rxe6 $19) 31... Rb8 32. Bxa6 Rxf4 33. Bxe2 (33. Rxe2 Rg4+ 34. Kh1 Nf5 $17) 33... Bc5+ 34. Kh1 Rxh4+ 35. Kg2 Rxb3) 31. Ng5 $16 Bc5+ 32. Kg2 $1 Rb8 33. Bxa6 Rf6 34. Rxe2 ({Much less strong is} 34. Bxe2 Rxf4 35. Bf3 Rxh4 $14) 34... Rxf4 35. Ra4 Rf6 36. Rc4 Bf8 $2 (36... Rxa6 $11 {and Black stays safe.} 37. Rxc5 Rab6) 37. Rc8 $18 Rxb3 (37... Rxc8 {is more resistant.} 38. Bxc8 Bc5) 38. Ne6 Rb6 $2 (38... Nf5 39. Rxf8+ Rxf8) 39. Nxf8 {Black must now prevent Nd7+.} Rxa6 40. Nd7+ Kh7 41. Nxf6+ gxf6 {[%mdl 4096] Endgame KRR-KRN} (41... Rxf6 $142 42. Re4 Rg6+ 43. Kh3 Nf5) 42. Rc5 Ng4 43. Kg3 Ne5 44. Rcxe5 fxe5 45. Rxe5 {KR-KR} Rb6 46. Re2 Kg6 47. Kf3 Kf5 48. h5 {Ke3 is the strong threat.} Rb3+ 49. Kf2 Rh3 {[#]} 50. Ke1 $1 {Threatens to win with Kd2.} Rxh5 51. Kd2 Rh8 52. b4 Rc8 $2 {[%mdl 8192] [#]} (52... Rh3 $16) 53. Kd3 $1 {Quite a comeback for White.  Weighted Error Value: White=0.61/Black=0.78} 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.7"]
[White "Vojta, Jakub"]
[Black "Mannion, Stephen R"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2289"]
[BlackElo "2267"]
[Annotator "TA"]
[PlyCount "175"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,175,24,11,23,23,33,26,44,29,50,0,44,16,42,41,41,35,40,10,33,12,26,17,23,0,0,0,0,0,0,0,13,18,8,-58,6,6,6,6,6,6,6,6,6,6,6,0,6,0,6,6,6,6,6,0,9,0,30,22,33,0,0,0,18,27,31,0,77,30,30,30,35,35,35,14,31,0,43,43,43,43,44,44,111,22,181,22,22,0,15,15,22,22,22,0,0,0,22,22,22,22,22,22,28,22,12836,22,22,22,22,22,12833,12833,12840,22,22,22,12833,12834,12835,12835,12837,12835,12837,12835,12835,12835,12836,12835,12835,12835,12837,12837,12837,12834,12833,12831,12841,12831,12831,12831,12840,12840,12843,12843,12844,12842,12843,12843,12845,12845,12845,12845,12845,12846,12846,12847,12847,12848,27999,27997]} 1. Nf3 {Chekhov,V} d5 2. g3 Nf6 3. Bg2 c6 4. c4 g6 5. b3 Bg7 6. Bb2 O-O 7. O-O Bg4 8. d3 Bxf3 9. Bxf3 Re8 {A11: English Opening: 1...c6.} 10. Nd2 a5 11. a3 Na6 {[#] White has an edge.} 12. Qc2 $146 ({Predecessor:} 12. Bg2 Qd6 13. Qc2 Rec8 14. Rac1 Qd8 15. Rfd1 Nc5 16. d4 Ncd7 17. Qd3 e6 18. Rc2 {1-0 (74) Larsen,B (2590)-Panno,O (2540) Buenos Aires 1980 MCL [Chekhov,V]}) 12... Rc8 13. Rfc1 (13. d4 $14) 13... e6 (13... d4 $11 {should be considered.}) 14. Be5 Nd7 15. Bxg7 Kxg7 16. Qc3+ Nf6 17. b4 axb4 18. axb4 Qe7 19. Rab1 e5 20. b5 Nc5 21. bxc6 bxc6 22. d4 Nce4 23. Bxe4 Nxe4 24. Nxe4 dxe4 25. Rb6 ({White should try} 25. Rd1 $11) 25... exd4 (25... Qd8 $15 26. Qb2 Qxd4) 26. Qxd4+ $11 Qe5 27. Rd1 Qxd4 28. Rxd4 {[%mdl 4096] Endgame KRR-KRR} Re5 29. Rb7 Rce8 30. Rdd7 Rf8 31. Rd4 Rfe8 32. Rdd7 Rf8 33. Kf1 Rc5 34. Rd4 Re8 35. Ke1 e3 36. f4 Ra8 {[%cal Oc5c4]} 37. Kf1 Ra2 38. Rdd7 Rf5 39. Rb3 Rc2 40. Rxe3 Rxc4 41. Ree7 Rc2 (41... g5 $11 {remains equal.}) 42. Kg2 ({White should play} 42. e4 $16 Rb5 43. Rxf7+ Kg8 44. Rg7+ Kf8 45. Rdf7+ Ke8 46. Rb7 (46. Re7+ Kd8 $14) 46... Rxb7 47. Rxb7) 42... h5 43. Kf3 {Threatens to win with e4.} Kg8 44. h3 {Black must now prevent g4.} g5 45. Ke4 Rfc5 46. Kf3 Rf5 47. e3 {aiming for g4.} gxf4 48. gxf4 Rc3 49. Ke4 Rf6 (49... Rcc5 $14) 50. Rc7 (50. f5 $1 $16) 50... Kf8 {[#] To avoid Re8+} (50... h4 $11 {and Black stays safe.}) 51. Re5 $2 (51. f5 $1 $18) 51... h4 52. Rc8+ Kg7 53. Ree8 {Intending Rg8+ and mate.} Re6+ 54. Rxe6 fxe6 {KR-KR} 55. Re8 Kf6 56. Rh8 c5 (56... e5 $5) 57. Rxh4 c4 58. Rh5 Ra3 59. Rc5 Rc3 60. h4 {Hoping for Rc6.} Kg6 $2 {[%mdl 8192]} (60... Rc1 $11) 61. Re5 $2 (61. h5+ $18 Kh6 62. Re5) 61... Kf6 62. h5 {Strongly threatening h6.} Rc1 63. Kd4 c3 $2 {[%mdl 8192]} (63... Rc2 $11) 64. Kd3 $18 ({Less strong is} 64. Rc5 Rc2 65. Kd3 (65. Rxc3 Rd2+ 66. Ke4 Rd5 $14) 65... Rc1 $18) 64... Kf7 {[#]} 65. Rc5 $2 ({White must play} 65. f5 $1 $18 exf5 66. Rxf5+ Ke6 67. Ra5 (67. Rc5 Kd6 $16)) 65... Kf6 $1 $11 66. Rg5 {Re5 is the strong threat.} c2 $2 {[%mdl 8192] White leaves nothing to chance now.} (66... Re1 $11) 67. Rc5 $18 Rd1+ 68. Kxc2 Rd8 69. Re5 Rd7 70. Kc3 Rd1 71. Rg5 Kf7 72. Ra5 Kf6 73. Kc2 Rd8 74. Rb5 Rd7 75. Kc3 Rd1 76. Re5 Kf7 77. Kc4 Kf6 78. Kc5 Rd3 79. h6 {[%cal Bh5h6,Bh6h7][%mdl 32]} Rd8 80. h7 Rh8 81. Rh5 Kg6 82. Rh1 Kf7 83. Kd6 Rd8+ 84. Kc7 Rh8 85. Kd7 Kf6 86. e4 e5 87. fxe5+ Kxe5 88. Ke7 {Weighted Error Value: White=0.21 (precise) /Black=0.18 (very precise)} 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.8"]
[White "Unneland, Mathias"]
[Black "Blahynka, Martin"]
[Result "0-1"]
[ECO "E10"]
[WhiteElo "2262"]
[BlackElo "2399"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,62,29,27,25,32,53,35,45,31,43,24,58,54,66,61,60,61,51,41,56,31,40,0,55,34,44,29,22,-47,-43,-84,-7,-58,-83,-88,-32,-93,0,-213,104,103,98,100,92,108,87,-968,-943,-1115,-953,-953,-953,-938,-746]} 1. Nf3 Nf6 2. c4 e6 3. d4 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 {[%cal Oe2e4]} a6 {E10: Blumenfeld Gambit.} 7. e3 Be7 8. Nc3 O-O {White is slightly better.} 9. Be2 axb5 10. Nxb5 {[#]} Nc6 $146 ({Predecessor:} 10... d5 11. O-O Nc6 12. b3 Bd7 13. Bb2 Qb8 14. h3 Kh8 15. Nd2 Ne5 16. a4 Ng6 {0-1 (42) Beinoras,M (2386)-Le Goff,D (2281) Panevezys 2010}) 11. O-O Kh8 12. b3 d6 13. Bb2 e5 14. Nd2 d5 {To avoid Nc4} 15. Nf3 d4 $1 16. exd4 (16. a4 {looks sharper.} Rb8 17. exd4 exd4 18. Bd3 Nb4 19. Ne5) 16... cxd4 (16... exd4 $11 17. Re1 Nd5) 17. Rc1 (17. a4 $5 {[%cal Ra1c1]}) 17... Rxa2 {And now ...Bd7 would win.} 18. Rxc6 Rxb2 19. Rc2 ({White should try} 19. Nxe5 $11 Qd5 20. Rxc8 Rxc8 21. Nc4 Rxe2 22. Qxe2) 19... Rxc2 $15 20. Qxc2 {[#]} Bd6 (20... Nd5 $1 $17 {[%cal Rd5f4] aiming for ...Nf4.} 21. Nxe5 Nf4) 21. Qc6 (21. Nxd6 $11 Qxd6 22. Bd3) 21... Bb8 22. Bc4 Bd7 (22... Bf5 $17 {...Be4 is the strong threat.} 23. Ng5 Qe7) 23. Qb7 ({White should play} 23. Qc5 $1 $15) 23... e4 (23... Qe7 $17 {Strongly threatening ...Qc5.} 24. Ra1 Qc5) 24. Ng5 $2 (24. Nfxd4 $11 Ng4 25. h3 Bh2+ 26. Kh1) 24... Bxh2+ $2 25. Kxh2 $16 Ng4+ 26. Kg1 {[%cal Ob5d6] Threatens to win with Nd6!} Qxg5 27. Qxd7 {Hoping for Qd6.} e3 {[%cal Be4e3,Be3e2][%mdl 32]} 28. f3 $2 {[%mdl 8192] [#] Loses the game.} ({Not} 28. Nxd4 $2 Qh4 29. Qxg4 Qxg4 $19) (28. fxe3 {gets mated.} Qxe3+) (28. Qd6 $16 Ra8 29. Qg3 (29. Nxd4 exf2+ 30. Rxf2 Nxf2 $14) (29. Qxd4 Qh5 $14) 29... exf2+ 30. Rxf2) 28... e2 $1 $19 {Black is clearly winning.} 29. Qxg4 (29. Qd6 Rd8) 29... Qxg4 {[%mdl 64] Pin} 30. Re1 Rxf3 {( -> ...Qg5)} 31. Rxe2 Re3 {Weighted Error Value: White=0.54/Black=0.38} 0-1

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.9"]
[White "Fus, Jakub"]
[Black "Dev, Shah"]
[Result "1-0"]
[ECO "D23"]
[WhiteElo "2384"]
[BlackElo "2243"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,133,0,25,27,27,19,33,31,100,65,94,80,82,89,85,56,137,118,127,118,115,116,136,122,138,110,118,120,152,156,171,110,149,149,222,237,225,147,141,156,146,52,62,37,23,0,79,22,101,-50,-47,-182,-174,-531,-519,-678,-685,-631,-604,-553,-554,-520,-412,-375,-371,-703,231,231,231,231,231,229,363,370,720,665,696,696,671,666,1484,1478,1391,1437,12828,12826,12830,1550,12837,12837,12837,12838,12841,12840,12845,12842,12845,12840,12840,12840,12845,12841,12842,12833,12845,12840,12841,12841,12841,12842,12842,12843,12843,12839,12844,12844,12845,12843,12846,12846,12847,12847,12848,12848,12849,12849]} 1. Nf3 Nf6 2. d4 d5 3. c4 dxc4 4. Qa4+ Nc6 5. Nc3 e6 6. a3 {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines.} Bd7 {[%cal Oc6d4] White must now prevent ...Nxd4!} 7. Qxc4 Na5 8. Qa2 {[#] White is slightly better.} b5 $146 ({Black should try} 8... Bc6 $14) ({Predecessor:} 8... Bc6 9. e3 Bd5 10. Bb5+ c6 11. Nxd5 Qxd5 12. Ba4 Bd6 13. Bc2 O-O 14. b3 b6 {1-0 (50) Dreev,A (2633)-Kulaots,K (2525) Gausdal 2007}) 9. e3 {[%cal Be2e3,Be3e4][%mdl 32]} c6 10. Bd2 Nb7 11. Bd3 a6 12. a4 Bb4 (12... b4 $1 $14) 13. O-O O-O 14. e4 {White is more active.} Be7 15. Qb1 h6 16. b4 {Inhibits c5.} Ne8 17. a5 Nc7 18. Ne2 f5 19. Ne5 Bd6 20. f3 (20. Nf4 $18) 20... Bxe5 21. dxe5 fxe4 (21... Rc8 $16 22. Rc1 fxe4) 22. Bxe4 $18 Nd5 23. Rc1 Rc8 24. Qb3 Qe7 25. Bb1 (25. f4 $16) 25... c5 $1 $14 26. Qd3 {White wants to mate with Qh7+.} g5 $1 27. h4 {hxg5 is the strong threat.} cxb4 (27... Qg7 $1 $11) 28. hxg5 ({White should play} 28. Ba2 $16) 28... hxg5 {[#]} (28... Rxc1+ $11 29. Bxc1 Be8) 29. Rxc8 $2 ({Don't play} 29. Qg6+ Qg7 $11) ({White must play} 29. Ba2 $1 $16) 29... Rxc8 $15 30. Ng3 (30. Ba2 $1 $15 Nc5 31. Qg6+ Qg7 32. Qxg7+ Kxg7 33. Bxd5 exd5 34. Bxb4) 30... Nc5 $36 {[%cal Bb7c5,Bc5b3,Bb3a1,Ba1c2][%mdl 2080] Black has strong initiative.} 31. Qd4 (31. Qg6+ {is more resistant.} Qg7 32. Bxg5) 31... Nb3 $1 {[%csl LRa1,LRd4] Pair of Knights!} 32. Qd3 Nxa1 33. Ne4 Qh7 34. Qd4 {Strongly threatening Nf6+.} Nc2 35. Qb2 b3 36. Qxb3 Nd4 37. Nf6+ $2 (37. Qd3 Nf5 38. Ba2) 37... Nxf6 $4 {[%mdl 8192]} (37... Kf7 $19 {and all is fine.} 38. Qxb5 {[#]} Ne2+ $1 {[%mdl 512]} 39. Qxe2 Qxb1+ 40. Qf1 Qxf1+ 41. Kxf1 Nxf6 42. exf6 Kxf6) 38. Bxh7+ $18 Nxh7 39. Qd3 Rc4 40. Be3 Nf5 (40... Bc6 $142) 41. Qxd7 Nxe3 $2 (41... Nf8 42. Qd8 g4 43. fxg4 Nxe3) 42. Qxe6+ {White is clearly winning.} Kg7 43. Qxa6 {Threatens to win with Qa7+.} Rc1+ 44. Kf2 Nc4 45. Qb7+ Kh6 46. a6 Nxe5 47. a7 Rc2+ 48. Kg1 Ra2 49. a8=Q Rxa8 50. Qxa8 Nf6 51. Qb8 {[%csl LRb5,LRe5]} Nf7 52. Qxb5 Kg6 53. Qb1+ Kg7 54. Qf5 Nh7 55. Kf2 Nf6 56. Ke3 Nh7 57. Kd4 Nf6 58. Kc5 Nh5 59. Kc6 Nf4 60. Kd7 Ng6 61. Qb1 Kf6 62. Qb6+ Kg7 63. Qb2+ Kh6 64. Ke6 Nfh8 65. g3 Nf8+ 66. Ke7 Nfg6+ 67. Kf6 {Both players deserved the win here.  Weighted Error Value: White=0.53/Black=0.44} 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.10"]
[White "Pham, Khoi"]
[Black "Van Osch, Mees"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "2114"]
[BlackElo "2364"]
[Annotator "TA"]
[PlyCount "140"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,140,22,33,18,11,25,16,18,0,0,0,9,15,20,-14,0,0,51,34,53,50,60,80,100,82,130,0,0,0,0,0,0,-27,-20,-15,116,114,110,99,103,93,95,99,80,76,122,132,128,122,131,102,188,113,112,0,0,0,0,0,0,0,0,0,0,-27,-27,-31,0,-157,-158,-158,-158,-158,-158,-158,-158,-158,-158,-158,-158,-158,-158,-158,0,-390,-56,-429,-429,-429,-158,-158,0,-158,-158,-422,-422,-352,-273,-187,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4 Bc5 9. Qd2 O-O 10. O-O-O a6 11. Nb3 Be7 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4.} 12. Bd3 {[%cal Oh2h4]} Nb4 13. Kb1 b5 {[#]} 14. g4 $146 {[%cal Oh2h4]} ({Predecessor:} 14. Be2 Qc7 15. Rhf1 Nc6 16. Bd3 Nb6 17. Bxb6 Qxb6 18. g4 {1-0 (28) Nenneman,D (2295)-Graham,O (2281) ICCF email 2019}) 14... Nxd3 15. cxd3 {[%cal Oh2h4]} Bb7 {[%cal Od5d4]} 16. Nd4 {[%cal Oh2h4]} b4 17. Nce2 a5 18. Rc1 Ra6 (18... a4 $11) 19. g5 $14 a4 {[%cal Ob4b3]} 20. h4 $1 {[%cal Bh2h4,Bh4h5][%mdl 32]} Qa5 21. h5 Nc5 {[%cal Oc5b3]} 22. Qd1 {To avoid Nb3. aiming for f5.} (22. h6 g6 23. Ng3 Nb3 $1 24. axb3 axb3 25. Nxb3 Qa2+ 26. Kc2 Ra3 $17) 22... Bc8 (22... Qd8 $142) 23. Ng3 (23. g6 $1 $16) 23... Nb3 $1 $11 24. Nc6 (24. axb3 $2 axb3 25. Nxb3 Qa2+ 26. Kc2 Ra3 $19) 24... Rxc6 25. Rxc6 {Threatens to win with h6. Really sharp!} d4 26. Bf2 {[#]} ({But not} 26. axb3 Bd7 27. Rd6 Bxd6 28. Bxd4 Bc7 $17) 26... Bb7 27. Rc4 {[#]} Bxh1 (27... Bf3 $1 $11 28. Qe1 (28. Qc2 Bxh1) 28... Qa6) 28. Nxh1 $16 Nc5 29. Bxd4 Nd7 30. Nf2 (30. h6 {keeps more tension.} Nb6 31. hxg7 Kxg7 32. Rc1 a3 33. b3) 30... Nb6 31. Bxb6 Qxb6 32. d4 (32. Ng4 {seems wilder.} b3 33. Rxa4 bxa2+ 34. Kxa2 Qb7 35. Nf2) 32... a3 ({Better is} 32... Qa6 33. Rc7 Bd8) 33. b3 $1 Qb7 {Inhibits Qf3.} 34. Qh1 {To avoid Qg2} Qxh1+ 35. Nxh1 {[%mdl 4096] Endgame KRB-KRN} f6 (35... h6 $16 {was necessary.}) 36. gxf6 ({White should play} 36. g6 $1 $18) 36... gxf6 37. Nf2 (37. Ng3 $1 $16) 37... fxe5 $11 38. dxe5 Rf5 39. Kc2 Rxh5 40. Kd3 Rh2 41. Rc2 Kf7 42. Re2 h5 {[%cal Bh7h5,Bh5h4,Bh4h3,Bh3h2][%mdl 32]} 43. Ne4 Rh1 44. Nf2 $2 (44. Nd6+ $11 Bxd6 45. exd6) 44... Rb1 $1 $17 45. Ke4 Rb2 46. Kf3 h4 {Hoping for ...Kg6.} 47. Nd3 Rxe2 48. Kxe2 {KB-KN} h3 49. Kf3 Kg6 $1 ({Don't play} 49... Bh4 50. Nxb4 Kg6 51. Nd3 $16) 50. Nf2 ({Wrong is} 50. Kg3 $2 Kf5 51. Kxh3 Ke4 $19) 50... h2 {White must now prevent ...Bh4.} 51. Kg2 Bc5 $2 ({Black should try} 51... Kf5 $17 52. Nh3 Kg4 53. Kxh2 Kf3) 52. Ne4 $2 {[%mdl 8192]} (52. Nd3 $11 Be7 53. Kxh2) 52... Bg1 $2 (52... Be3 $19 {And now ...Kf5 would win.} 53. Kxh2 Kf5 54. Nd6+ Kxf4) 53. Ng3 {[%mdl 8192]} (53. Nd6 $1 $15) 53... Be3 $19 54. Kf3 Bd2 (54... Bc1 $1 $19 {[%cal Rc1d2] and Black stays clearly on top.} 55. Nh1 Bd2) 55. Kg4 $17 Be3 {...Bf2 is the strong threat.} 56. Kf3 {To avoid Bf2} Bc1 57. Kg4 $2 (57. Nh1 $17) 57... Bd2 $19 58. Nh1 {[#]} Be1 59. Kf3 {[#]} Kf5 $2 (59... Kh5 $1 $19 {Strongly threatening ...Bh4.} 60. Ke2 Bc3) 60. Ke2 $1 $11 {The position is equal.} Kxf4 61. Kxe1 Kxe5 {KN-KP} 62. Ke2 Kd4 {( -> ...Kc3)} 63. Kd2 $1 e5 {[%cal Be6e5,Be5e4,Be4e3][%mdl 32]} 64. Ng3 e4 65. Nh1 $1 e3+ 66. Ke2 Ke4 67. Ng3+ Kf4 (67... Kd4 $5) 68. Nh1 Ke4 69. Ng3+ Kd4 (69... Kf4 $5 70. Nh1 Ke4 $11) 70. Nh1 $1 Ke4 {Black had all chances to win.  Weighted Error Value: White=0.43/Black=0.38} 1/2-1/2

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.11"]
[White "Hrabusa, Matej"]
[Black "Michalczak, Thomas"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2369"]
[BlackElo "2218"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,73,31,29,41,34,25,25,26,22,32,28,54,48,39,0,0,0,0,-5,-2,-2,200,128,304,289,379,391,379,294,288,277,267,273,287,247,246,205,260,268,282,231,213,218,213,222,214,195,212,166,176,160,172,156,188,178,187,150,1765,1764,29998,29999]} 1. e4 {Stohl,I} e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 Nd5 {C58: Two Knights: 4 Ng5 d5 5 exd5 Na5 sidelines.} 9. Nf3 ({Weaker is} 9. Qh5 g6 10. Nxf7 gxh5 $17) 9... Bd6 10. O-O O-O {White has an edge.} 11. Re1 $1 f5 {[#] White must now prevent ...e4. is now debated instead of 11...Re8.} 12. Nxe5 ({Reject} 12. Rxe5 Bxe5 13. Nxe5 Qf6 $11) 12... Qf6 $1 ({Not} 12... Qh4 13. Bf1 $18) 13. Nf3 {Strongly threatening Bf1.} g5 $1 14. c4 (14. g3 $14) 14... Nf4 $11 15. Bf1 {d4 is the strong threat.} g4 16. d4 gxf3 17. Qxf3 {[#]} Qxd4 $146 {White stays focused until the end.} (17... Ne6 $1 $11 {and Black is okay.}) ({Predecessor:} 17... Ne6 18. Qc3 Nb7 19. c5 Bc7 20. b4 a5 21. b5 Qxd4 22. Qxd4 Nxd4 23. Bc4+ Be6 24. Bxe6+ Nxe6 25. Rxe6 Nxc5 {0-1 (55) So,W (2770)-Carlsen,M (2862) chess24.com INT 2021 CBM 202 Extra [Stohl,I]}) 18. Rd1 Qe5 (18... Nh3+ $16 19. gxh3 Qg7+ 20. Qg2 Qxg2+ 21. Bxg2 Be5) 19. Qg3+ $18 Ng6 {Threatens to win with ...f4.} 20. Rxd6 f4 21. Rxg6+ hxg6 22. Qxg6+ Qg7 23. Qxg7+ Kxg7 24. b4 Nb7 25. Bb2+ Kg6 26. Nd2 a5 27. Nf3 axb4 28. Ne5+ Kg5 29. Nxc6 Be6 30. Nxb4 Rfc8 31. Bc1 {And now g3 would win.} Bxc4 32. g3 {aiming for Bg2.} Bxf1 33. Bxf4+ Kg4 {Hoping for ...Be2.} 34. Rxf1 Ra4 35. f3+ Kh3 $2 (35... Kf5 $16) 36. Nd3 {[%cal Rd3f2]} Rxa2 {[#]} 37. Bd2 $1 {[%mdl 512] Weighted Error Value: White=0.15 (very precise) /Black=0.50} 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.12"]
[White "Matras, Ondrej"]
[Black "Sorm, Daniel"]
[Result "1-0"]
[ECO "A53"]
[WhiteElo "2223"]
[BlackElo "2348"]
[Annotator "ChessBase"]
[PlyCount "140"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:03:04]} Nf6 {[%emt 0:03:04]} 2. c4 {[%emt 0:00:20]} d6 {[%emt 0:00:40]} 3. Nc3 {[%emt 0:00:28]} Nbd7 {[%emt 0:00:07]} 4. e4 {[%emt 0:00:13]} e5 {[%emt 0:00:07]} 5. d5 {[%emt 0:00:42]} Be7 {[%emt 0:01:35]} 6. Bd3 {[%emt 0:01:59]} O-O {[%emt 0:01:50]} 7. h3 {[%emt 0:03:13]} Nc5 {[%emt 0:04:40]} 8. Bc2 {[%emt 0:00:03]} a5 {[%emt 0:03:23]} 9. Be3 {[%emt 0:00:16]} c6 {[%emt 0:04:12]} 10. dxc6 {[%emt 0:06:42]} bxc6 {[%emt 0:00:37]} 11. Bxc5 {[%emt 0:00:09]} dxc5 {[%emt 0:00:12]} 12. Qxd8 {[%emt 0:00:08]} Rxd8 {[%emt 0:00:18]} 13. Nf3 {[%emt 0:00:17]} Nd7 {[%emt 0:11:07]} 14. O-O-O {[%emt 0:02:35]} Ba6 {[%emt 0:08:40]} 15. b3 {[%emt 0:00:59]} f6 {[%emt 0:01:16]} 16. Na4 {[%emt 0:00:23]} Nf8 {[%emt 0:00:38]} 17. Rxd8 {[%emt 0:00:26]} Rxd8 {[%emt 0:00:17]} 18. Rd1 {[%emt 0:00:14]} Rb8 {[%emt 0:04:23]} 19. Ne1 {[%emt 0:03:49]} Kf7 {[%emt 0:03:07]} 20. Nd3 {[%emt 0:01:54]} Ne6 {[%emt 0:00:10]} 21. Rf1 {[%emt 0:00:41]} Bd6 {[%emt 0:03:00]} 22. Bd1 {[%emt 0:01:45]} Bc8 {[%emt 0:06:06]} 23. Bg4 {[%emt 0:03:17]} Nf4 {[%emt 0:00:31]} 24. Nxf4 {[%emt 0:01:16]} Bxg4 {[%emt 0:02:01]} 25. hxg4 {[%emt 0:00:52]} exf4 {[%emt 0:00:05]} 26. Rd1 {[%emt 0:02:05]} Ke6 {[%emt 0:01:04]} 27. f3 {[%emt 0:05:32]} Rh8 {[%emt 0:04:41]} 28. Rh1 {[%emt 0:00:48]} g6 {[%emt 0:00:27]} 29. Nb2 {[%emt 0:05:27]} h5 {[%emt 0:02:13]} 30. gxh5 {[%emt 0:00:35]} gxh5 {[%emt 0:00:17]} 31. Nd3 {[%emt 0:00:51]} h4 {[%emt 0:04:11]} 32. Kb2 {[%emt 0:27:18]} Kd7 {[%emt 0:02:18]} 33. Ka3 {[%emt 0:05:02]} Kc7 {[%emt 0:05:14]} 34. Ka4 {[%emt 0:00:23]} Rg8 {[%emt 0:17:13]} 35. Rxh4 {[%emt 0:02:43]} Rxg2 {[%emt 0:00:07]} 36. a3 {[%emt 0:00:08]} Rg3 {[%emt 0:04:23]} 37. Nxf4 {[%emt 0:03:28]} Rxf3 {[%emt 0:00:05]} 38. Rh7+ {[%emt 0:00:51]} Kb6 {[%emt 0:00:24]} 39. Ne6 {[%emt 0:00:28]} Re3 {[%emt 0:02:50]} 40. Rd7 {[%emt 0:00:41]} Be5 {[%emt 0:02:07]} 41. Nd8 {[%emt 0:20:24]} Bc7 {[%emt 0:12:13]} 42. Ne6 {[%emt 0:00:03]} Be5 {[%emt 0:00:08]} 43. Nd8 {[%emt 0:01:34]} Rxe4 {[%emt 0:07:01]} 44. Rb7+ {[%emt 0:00:11]} Ka6 {[%emt 0:00:07]} 45. Rf7 {[%emt 0:00:12]} Re1 {[%emt 0:07:47]} 46. Nxc6 {[%emt 0:05:48]} Bc3 {[%emt 0:00:22]} 47. Ne7 {[%emt 0:04:36]} Be5 {[%emt 0:06:04]} 48. Nc8 {[%emt 0:00:01]} Bb8 {[%emt 0:00:03]} 49. Rxf6+ {[%emt 0:00:48]} Kb7 {[%emt 0:00:20]} 50. Nb6 {[%emt 0:01:02]} Ra1 {[%emt 0:01:06]} 51. Kb5 {[%emt 0:02:28]} Kc7 {[%emt 0:00:37]} 52. Rc6+ {[%emt 0:06:25]} Kb7 {[%emt 0:00:14]} 53. Re6 {[%emt 0:01:36]} Kc7 {[%emt 0:00:25]} 54. Ka4 {[%emt 0:06:19]} Kd8 {[%emt 0:00:45]} 55. Nd5 {[%emt 0:00:47]} Bg3 {[%emt 0:00:25]} 56. Rg6 {[%emt 0:01:36]} Be5 {[%emt 0:00:26]} 57. Kb5 {[%emt 0:00:39]} Rxa3 {[%emt 0:00:32]} 58. Kc6 {[%emt 0:00:11]} Ke8 {[%emt 0:00:40]} 59. Re6+ {[%emt 0:00:02]} Kf7 {[%emt 0:00:02]} 60. Rxe5 {[%emt 0:00:21]} Rxb3 {[%emt 0:00:04]} 61. Kxc5 {[%emt 0:00:17]} a4 {[%emt 0:00:12]} 62. Re7+ {[%emt 0:00:53]} Kg6 {[%emt 0:00:12]} 63. Ra7 {[%emt 0:00:21]} a3 {[%emt 0:00:07]} 64. Kd6 {[%emt 0:00:18]} Kf5 {[%emt 0:00:23]} 65. c5 {[%emt 0:00:34]} Ke4 {[%emt 0:00:06]} 66. c6 {[%emt 0:00:19]} Rd3 {[%emt 0:00:12]} 67. Ra4+ {[%emt 0:00:09]} Rd4 {[%emt 0:00:23]} 68. Rxd4+ {[%emt 0:00:19]} Kxd4 {[%emt 0:00:02]} 69. c7 {[%emt 0:00:08]} a2 {[%emt 0:00:11]} 70. c8=Q {[%emt 0:00:08]} a1=B {[%emt 0:00:12]} 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.13"]
[White "Jordanov, Mihail"]
[Black "Lim, Zhuo Ren"]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "2193"]
[BlackElo "2311"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,71,14,13,10,17,24,18,6,21,0,0,0,2,-9,29,29,32,12,21,-14,-4,-10,-18,-13,15,21,17,10,24,20,10,14,61,0,0,0,14,14,74,-6,-3,-11,25,16,82,92,113,113,120,110,155,177,210,201,225,0,0,0,0,0,0,0,0,-518]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qe3 g6 6. Be2 {B53: Sicilian: 2...d6: Lines with Qxd4.} Bg7 7. O-O Nf6 8. h3 O-O 9. Rd1 Be6 10. Ng5 Bd7 11. c4 {[#]} a6 $146 ({Predecessor:} 11... Nb4 12. Qb3 Na6 13. Nc3 Bc6 14. e5 Ne8 15. Nf3 Qa5 16. Bg5 f6 17. c5+ Kh8 18. Bxa6 Bxf3 19. gxf3 Qxa6 20. exd6 exd6 {1-0 (49) Ozalp,H-Mollamustafaoglu,O ICCF email 2013}) 12. Nc3 b5 13. cxb5 Nb4 14. Rb1 {And now a3 would win.} axb5 15. e5 dxe5 16. Bxb5 Qc7 {...Bf5 is the strong threat.} 17. Bxd7 Nxd7 18. a3 Nc2 19. Qe4 Nd4 20. Nd5 Qd6 {[#]} (20... Qd8 $1 $11 {deserves consideration.} 21. Nxe7+ (21. Qh4 h6 $15) 21... Qxe7 22. Rxd4 Nc5) 21. Nxe7+ $1 Qxe7 $11 22. Rxd4 $1 $40 {[%mdl 128] White has some attack.} Nc5 {Inhibits Ra4.} 23. Qe3 ({Don't play} 23. Qh4 h6 24. Rd5 (24. Nf3 $2 Bf6 $19) 24... hxg5 25. Bxg5 Qa7 $17) 23... Nb3 {[#]} 24. Rd5 ({Better is} 24. Rb4 $1 $16 Na5 25. Rb5) 24... Qb7 25. Rd3 Rfb8 26. Bd2 Nxd2 (26... Nd4 $11 {keeps the balance.}) 27. Qxd2 $16 {Black must now prevent Rd7.} Bh6 {[#]} 28. h4 $1 {[%cal Bh3h4,Bh4g5][%mdl 32]} Ra7 29. b4 Qa8 (29... Qe7 $142) 30. Qa2 {White is more active.} Bxg5 31. hxg5 Qe4 32. Qd2 (32. Re3 $18 Qf4 33. Qe2) 32... Rxa3 $1 $11 {The position is equal.} 33. Rd8+ Kg7 34. Rxb8 $4 {[%mdl 8192]} (34. Rd1 $11 {and White has nothing to worry.} Rxd8 35. Qxd8) 34... Qxb1+ $19 35. Kh2 {Threatening mate with Qd8.} Qe4 {( -> ...Qh4+)} (35... Ra1 $2 36. Qc3 Qf5 37. Qxa1 $18) 36. Rg8+ {[%mdl 32768] Weighted Error Value: White=0.18 (very precise) /Black=0.18 (very precise) . An unexpected result.} 1/2-1/2

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.14"]
[White "Acor, Corey"]
[Black "Ronce, Nathan"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "2303"]
[BlackElo "2171"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,63,10,-4,0,1,68,31,48,12,14,16,12,0,0,0,0,0,0,-49,0,0,17,23,20,5,83,59,50,60,52,54,83,68,73,73,380,166,146,152,164,154,257,228,310,318,339,336,378,381,362,339]} 1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. Be3 Rb8 7. Nge2 Nd4 8. O-O b5 {B26: Closed Sicilian: 3 g3, lines with early Be3.} 9. b4 {White wants to play a4.} e6 (9... Bg4 $1 $11) 10. Rb1 {[#]} Ne7 $146 {White is slightly better.} ({Predecessor:} 10... Bd7 11. f4 Ne7 12. Qd2 Bc6 13. e5 Bxg2 14. Kxg2 dxe5 15. bxc5 Nxe2 16. Nxe2 Qd5+ {0-1 (32) Tornes Rosquet,I (1558)-Casamayor Ferrer,M (1609) Artemisa 2018}) 11. f4 Nxe2+ 12. Nxe2 cxb4 13. Bxa7 Ra8 14. Be3 Rxa2 15. Rxb4 Bd7 16. Bd4 (16. Nd4 $11 {feels stronger.}) 16... e5 (16... Bxd4+ $15 17. Nxd4 Nc6 18. Nxc6 Bxc6) 17. fxe5 $11 dxe5 18. Qb1 Ra8 19. Be3 Rc8 {Inhibits Nc3.} (19... Qc7 $11) 20. c4 Bg4 $1 21. Nc3 $40 {[%cal Be2c3,Bc3d5,Bd5e7][%mdl 160] Strongly threatening Nd5. White is up to no good.} bxc4 22. dxc4 {[#] aiming for h3.} Nc6 23. Rb7 O-O 24. Nd5 {White is much more active.} Nd4 $2 {[%mdl 8192] This costs Black the game.} (24... Rb8 $16 {is a better chance.}) 25. Bxd4 (25. Ne7+ $142 Kh8 26. Nxc8 Bxc8 27. Rbxf7) 25... exd4 $18 26. Ne7+ Kh8 27. Nxc8 Bxc8 (27... d3 $16) 28. Rbxf7 Rxf7 29. Rxf7 d3 {[#]} 30. Rf3 $1 Qd4+ 31. Kh1 Qxc4 32. Qxd3 {Weighted Error Value: White=0.18 (very precise) /Black=0.46} ({Resist} 32. Rxd3 h6 33. Rd1 Be6 $18) 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.15"]
[White "Macicek, Jakub"]
[Black "Grutter, Tim"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "2250"]
[BlackElo "2194"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,73,43,27,64,45,51,43,76,60,83,42,45,29,33,22,60,69,74,74,90,1,13,-29,-39,-25,0,-88,-73,-81,-12,-16,-12,-29,-28,-146,-5,-180,0,0,0,-289,-300,-296,-283,-284,-166,-160,-158,-242,-35,-1159,-1084,-29995,-29996,-29999]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c5 7. Nge2 Nc6 8. d5 Ne5 9. Ng3 e6 10. Be2 exd5 11. cxd5 Re8 {A65: Modern Benoni: 6 e4.} 12. O-O a6 13. a4 Rb8 {White is slightly better.} 14. Qd2 Qa5 {[#]} 15. Qc2 $146 ({White should play} 15. Rfb1 $16) ({Predecessor:} 15. h3 Qb4 16. f4 Nc4 17. Bxc4 Qxc4 18. e5 dxe5 19. fxe5 Nd7 20. Qf2 Nxe5 21. Nge4 Rf8 22. Bxc5 Nd3 23. Qh4 {1-0 (23) Sowray,P (2331)-Doran,C (2002) Ascot 2014}) 15... h5 $14 16. Nh1 Nh7 17. Nf2 g5 18. f4 gxf4 19. Bxf4 Qd8 20. Nfd1 (20. Kh1 $16) 20... Ng6 $1 $11 21. Bg3 (21. Bd2 {might be stronger.}) 21... h4 22. Bf2 Qg5 23. Ne3 (23. Kh1 $11) 23... Nf4 $17 24. Kh1 {[%cal Of2h4]} Bd4 {Black is more active.} (24... Nxe2 $17 25. Qxe2 Bxc3 26. bxc3 Rxe4) 25. Bf3 $1 $11 b5 {Inhibits Nc4.} 26. axb5 axb5 27. Nf5 (27. Ned1 $11) 27... Bxf2 (27... Bxf5 $17 28. exf5 Bxf2 29. Rxf2 Nf6) 28. Qxf2 $2 (28. Nxd6 $11 {and White is okay.} Bd4 29. Nxe8) 28... b4 $2 (28... Bxf5 $19 29. exf5 Nf6) 29. Nxd6 bxc3 30. Nxe8 $4 {[%mdl 8192]} (30. bxc3 $11 {and White stays safe.} Rd8 31. Nxc8) 30... cxb2 $19 31. Rab1 {Threatens to win with Be2.} Ba6 {[%csl LRe8,LRf1] To avoid Be2. Chess con chili.} 32. Rfd1 Rxe8 (32... Nd3 $142 $1 {[%cal Rd3f2]} 33. Qc2 Qe3) 33. Qxb2 Be2 {[%cal Oh7f6] Strongly threatening ...Nf6!} 34. Rg1 {[#]} (34. Rd2 $17 Nd3 35. Qa2 Nf2+ 36. Kg1 Bxf3 37. Rxf2 Bxe4 38. d6) 34... h3 $2 35. Qc3 $2 {[%mdl 8192] [#]} (35. Qd2 $15) 35... Nd3 $1 {[%cal Rd3f2]} 36. Rgf1 {Prevents Nf2+.} (36. Rbf1 Bxf1) 36... Bxf3 37. gxf3 Qg2# {Weighted Error Value: White=0.86/Black=0.46} 0-1

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.16"]
[White "Bomans, Arno"]
[Black "Schouten, Mathias Lind"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2246"]
[BlackElo "2165"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,97,0,40,-20,-25,-58,16,-29,-21,-16,0,-20,28,32,56,51,46,45,72,31,88,56,59,61,29,40,72,10,20,20,11,-35,-33,-38,-31,-20,0,0,0,0,39,0,97,101,102,114,135,132,120,124,155,124,175,57,122,0,86,77,118,42,190,50,289,183,146,43,124,43,82,0,0,0,83,0]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Qc2 h6 8. Bf4 O-O 9. h3 Bd6 10. Bxd6 Qxd6 11. Bd3 Re8 12. Nf3 Nbd7 13. O-O-O Qe7 14. Nd2 {[#] D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} (14. Rhg1 $14) 14... b5 $146 ({Predecessor:} 14... Nf8 15. g4 Be6 16. Rdg1 Rec8 17. g5 hxg5 18. Rxg5 N8h7 19. Rg2 Kh8 20. Rhg1 Rg8 21. Nf3 Rac8 {1-0 (29) Rowson,J (2574)-Tommasini,E (2161) Porto Mannu 2013}) 15. Kb1 Nb6 (15... a5 $1 $15) 16. Rhe1 (16. Rhg1 $142) 16... Nc4 17. Ka1 Bd7 18. Nb3 Nd6 (18... a5 $142) 19. Nc5 $11 Nde4 20. N3xe4 dxe4 21. Bf1 Bf5 22. Rc1 {White is more active.} (22. f4 $1 $16) 22... Rac8 (22... Nd5 $14) 23. g4 Bg6 24. Qd2 Nd5 25. Rc2 Qc7 26. Na6 (26. Rec1 $16) 26... Qb6 27. Nb4 {[%cal Ba6b4,Bb4c2,Bc2e1,Be1g2,Bg2h4][%mdl 32]} Ne7 {Hoping for ...a5.} 28. Rc5 (28. a3 $11 {feels stronger.}) 28... a5 $15 29. Nc2 Red8 {[%cal Ob6c5] Strongly threatening ...Qxc5!} 30. Rd1 Rd6 31. Ne1 Rcd8 {[%cal Ob6c5] ...Qxc5! is the strong threat.} 32. Rdc1 Nd5 33. Qc2 Re8 (33... Nb4 $11 34. Qc3 Rf6) 34. a3 $16 {[%cal Rc5c6]} ({Of course not} 34. Rxc6 Nb4 $1 35. Rxb6 Nxc2+ 36. Nxc2 Rxb6 $15) 34... Ree6 35. Ng2 $1 Rf6 {To avoid Nf4} 36. Nh4 b4 37. Nxg6 fxg6 38. Bg2 b3 (38... Qa7 $16 {was called for.}) 39. Qc4 ({Much less strong is} 39. Qxe4 Rxf2 40. h4 (40. Rxc6 Rxc6 41. Qe8+ Kh7 $11) 40... Rff6 $16) (39. Qe2 $18) 39... Rde6 (39... Rxf2 $14 40. Bxe4 Kh7) 40. Rf1 (40. h4 $1 $16) 40... Kh7 (40... g5 $11 {remains equal.}) 41. h4 Rf7 (41... Rf8 $142) 42. g5 (42. h5 $1 $16 {[%cal Rh5g6]} gxh5 43. gxh5) 42... Rf8 (42... h5 $1 $14) 43. Kb1 (43. Bh3 $18 Rd6 44. Bg2) 43... Rf7 $2 (43... h5 $1 $14) 44. Bh3 Rd6 45. Bg4 ({White should try} 45. f4 $16) 45... a4 {[#]} (45... Rf8 $14) 46. Be2 ({White should play} 46. Bh3 $1 $16) 46... Ra7 47. Rc1 {[%cal Rc5c6]} Rf7 48. Rf1 Ra7 {[#]} 49. Rc1 {Weighted Error Value: White=0.38/Black=0.44} ({Better is} 49. gxh6 $1 $16 gxh6 50. Qc1) 1/2-1/2

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.17"]
[White "Nielsen, Andre"]
[Black "Oye-Stromberg, Alexander"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2232"]
[BlackElo "2238"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,70,43,31,42,22,48,38,31,20,26,25,14,6,11,-8,60,57,48,50,41,31,34,18,5,0,0,0,0,0,0,0,6,-38,-22,-60,0,0,0,0,0,0,0,-12,-22,-21,-9,-14,-19,-34,-13,-14,-15,-15,0,0,0,0,0,-16,-16,-37,-25]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. O-O d6 6. c3 g5 $1 {[%mdl 4] is now more promising than 6...g6. C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} 7. Nbd2 {[%cal Bb1d2,Bd2c4,Bc4e3,Be3f5][%mdl 32]} Bg7 8. Bb3 O-O {White is slightly better.} 9. Nc4 Be6 10. Re1 a5 {[#]} 11. Ne3 $146 ({Predecessor:} 11. a4 Qd7 12. Ne3 d5 13. Qc2 Rad8 14. h3 Kh8 15. Ra3 Rfe8 16. Bd2 Bf8 17. Raa1 {1-0 (26) Wang,J (2467)-Stearman,J (2435) Charlotte 2021}) 11... d5 12. Qc2 Qd7 (12... b5 $11) 13. Ba4 $1 $14 {[%cal Of3e5] aiming for Nxe5!} Qd6 14. exd5 Bxd5 15. Bxc6 (15. Nf5 {is interesting.} Qd7 16. Rxe5 Bxf3 17. gxf3 Nd5 18. Nxg7 Kxg7 19. d4) 15... bxc6 16. Nf5 {[%csl LRd6,LRe5]} Qd7 17. Nxg7 Bxf3 18. gxf3 {[%cal Od3d4]} Kxg7 19. Rxe5 Rfe8 20. d4 {[%cal Oh2h4]} Qh3 21. Be3 (21. Qe2 $11 {is superior.}) 21... Qxf3 {[#] White must now prevent ...Ng4.} 22. Qf5 Qg4+ (22... Qxf5 $1 $15 23. Rxf5 Nd5) 23. Qxg4 $11 Nxg4 24. Rc5 {[%cal Oe3g5]} Re6 25. Re1 a4 26. d5 cxd5 27. Bd4+ Kg6 28. Rxe6+ fxe6 {[%cal Bf7e6,Be6e5,Be5d4][%mdl 32]} 29. Rxc7 {[%mdl 4096] Endgame KRB-KRN} e5 30. h3 exd4 31. hxg4 d3 {[#] And now ...d2 would win.} 32. Rd7 Ra5 {...d2 is the strong threat.} 33. Kf1 Rb5 34. Ke1 Rxb2 35. Rxd5 Re2+ {Weighted Error Value: White=0.08 (flawless) /Black=0.10 (very precise)} 1/2-1/2

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.18"]
[White "Shatil, Shir"]
[Black "Babula, Vlastimil"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1977"]
[BlackElo "2561"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,117,15,16,31,20,21,25,2,30,-39,-18,-24,-20,-53,-41,-56,119,111,165,156,157,151,172,147,262,124,303,250,251,154,151,152,227,173,235,239,235,200,244,189,204,191,198,190,233,233,243,0,214,201,195,131,178,85,85,33,49,44,44,30,50,37,137,100,91,62,101,125,108,88,208,201,193,204,341,341,395,349,410,423,385,388,372,354,466,397,456,422,754,740,744,739,738,716,1163,1148,999,946,1058,975]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. h3 e5 7. d5 a5 8. Bg5 Na6 9. Be2 Qe8 10. Nd2 Nd7 11. a3 {[%cal Ob2b4] E92: King's Indian: Classical: 6 Be2 e5: 7 dxe5, 7 Be3 and Petrosian System without 7...Nbd7.} f6 12. Be3 f5 {Strongly threatening ...f4.} 13. f3 {White has an edge.} Qe7 {[%cal Og7h6]} 14. b4 {[#]} (14. O-O $1 $11) 14... Bh6 $1 $15 15. Bf2 {[%cal Oc4c5]} Nf6 {[#]} 16. g4 $146 ({Predecessor:} 16. c5 dxc5 17. Bxa6 Rxa6 18. Bxc5 Qd8 19. b5 Ra8 20. Ra2 c6 21. dxc6 Be6 22. Rc2 {½-½ (43) Postny,E (2585)-Nedev,T (2490) Rio Achaea 2018}) 16... Bd7 17. Rb1 Qf7 $2 (17... Kh8 $15 {stays ahead.}) 18. exf5 $1 $16 (18. bxa5 fxg4 19. hxg4 Nxg4 $1 {[%mdl 512]} 20. Rxh6 Nxh6 21. Rxb7 Bc8 $17) 18... Kh8 (18... axb4 $16 {is a better defense.} 19. fxg6 Qxg6 20. axb4 Bf4) 19. fxg6 $18 (19. bxa5 gxf5 20. Rxb7 fxg4 $11) 19... Qxg6 20. Nde4 Nxe4 21. Nxe4 Rf4 (21... axb4 $16 22. axb4 c6) 22. Qd3 (22. bxa5 $18 Bc8 23. Qc2) 22... Raf8 $2 (22... axb4 $16 23. axb4 c6) 23. Bg3 R4f7 24. O-O (24. bxa5 Bc8 25. h4 Bf4 $18) 24... Bf4 25. Kg2 Rg8 (25... Rg7 $16 26. b5 (26. bxa5 Bf5 $16) 26... Nb8) 26. Qc3 (26. bxa5 $6 Bxg3 27. Nxg3 Qxd3 28. Bxd3 Nc5 $16) 26... Bxg3 (26... Qh6 {was called for.} 27. Bxf4 (27. bxa5 Bxg3 28. Nxg3 Nc5 $16) 27... Rxf4) 27. Nxg3 Qg5 28. Bd3 Qh4 29. Be4 Rf4 30. Rh1 Rgf8 31. Rbf1 Rg8 (31... R4f7 $142 32. Ra1 (32. Bf5 Bxf5 33. f4 Bd7 $17) 32... b6) 32. Ne2 Rf7 33. Ng3 $2 (33. f4 $18 Rgf8 34. f5) 33... Rgg7 $2 (33... Rf4 $1 $11 {and Black stays safe.}) 34. Rfg1 {Active counter play!} Rf4 35. Kf2 (35. Rb1 $18) 35... Rgf7 $16 {[#] Threatens to win with ...Rxe4.} 36. Ke2 (36. Re1 $1 $18 {is more deadly.}) 36... Rf8 37. Kd2 ({Better is} 37. Rg2 $16) 37... c6 $14 38. Ne2 $1 (38. bxa5 Nc5 39. dxc6 Bxc6 40. Bxc6 bxc6 $19) 38... R4f7 39. f4 $1 axb4 40. axb4 Re7 (40... Nc7 $14) 41. f5 cxd5 42. Bxd5 b5 {[#]} 43. Ra1 $1 $36 {[%mdl 2048] White is on the roll.} Nc7 44. Qg3 {Really sharp!} Qxg3 (44... Qf6 $16) 45. Nxg3 $18 bxc4 46. Bxc4 d5 {[#]} (46... Bb5 {might work better.}) 47. Ra7 $1 Bc6 (47... dxc4 48. Rxc7) 48. Be2 ({Less strong is} 48. b5 dxc4 49. bxc6 Rf6 $18) 48... d4 49. Rc1 Nd5 50. Rxe7 Nxe7 51. Rc5 e4 52. Re5 e3+ 53. Kd3 {White is clearly winning.} Rd8 (53... Nd5 $142 54. Kxd4 Nxb4) 54. Rxe7 Bb5+ 55. Ke4 d3 {[#]} 56. Bxd3 $1 Rxd3 (56... Bxd3+ 57. Kxe3) 57. Re5 Bc4 58. Rc5 Rc3 59. Kd4 {[%csl LRc3,LRc4] Weighted Error Value: White=0.25 (precise) /Black=0.45} 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.19"]
[White "Bochnicka, Vladimir"]
[Black "Soucek, Petr"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2222"]
[BlackElo "2117"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,42,10,4,35,29,25,34,56,52,64,0,0,0,1,0,0,14,0,0,0,-14,24,-5,0,0,0,-10,-14]} 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e4 e5 6. Nge2 Nge7 7. O-O O-O 8. d3 d6 9. Be3 h6 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7.} 10. Rb1 Be6 {[#]} 11. Nd5 $146 ({Predecessor:} 11. Qd2 Kh7 12. h3 f5 {½-½ (12) Dittmann,J (1526)-Svane,R (1922) Neumuenster 2008}) 11... Nd4 {White is slightly better.} 12. b4 b6 {[%cal Bb7b6,Bb6c5,Bc5d4][%mdl 32]} 13. h3 (13. bxc5 $14 dxc5 14. Nxd4 exd4 15. Bd2) 13... Nxd5 $11 14. cxd5 Bd7 15. bxc5 bxc5 16. Nxd4 cxd4 17. Bd2 Qc8 18. Qb3 Qa6 19. Bb4 Rfc8 {The position is equal.} 20. Rfc1 Bf8 21. Bf1 Rab8 {Weighted Error Value: White=0.14 (very precise) /Black=0.08 (flawless)} 1/2-1/2

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.20"]
[White "Novotny, Michal"]
[Black "Kudrytskyi, Stanislav"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2236"]
[BlackElo "2057"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,53,52,48,37,41,49,25,20,20,62,58,191,179,213,196,187,0,0,23,17,11,48,27,66,16,22,-11,166,11,391,408,908,495,29987,29988,29984,1061,29998,29999]} 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. Re1 c6 8. a4 b6 {The old main line.} 9. h3 Bb7 {C41: Philidor Defence.} 10. Ba2 Qc7 11. dxe5 {was the old line (11.Nh4).} dxe5 {White has an edge.} 12. Nh4 {[%cal Bf3h4,Bh4f5,Bf5e3][%mdl 32]} Rfe8 (12... Bc8 $11 {might be stronger.}) 13. Qf3 $14 {White is more active.} Bf8 ({Better is} 13... Nc5 $14) 14. Nf5 $18 {[#]} b5 $146 ({Predecessor:} 14... Rad8 15. Bg5 g6 16. Ne3 Be7 17. Ng4 Nxg4 18. Qxf7+ Kh8 19. Bxe7 Rf8 20. Bxf8 Rxf8 21. Qe7 Ngf6 22. Rad1 Re8 23. Qd6 Qd8 {1-0 (23) Fedorchuk,S (2618)-Moussard,J (2426) Paris 2011}) 15. Bg5 b4 {[#]} 16. Ne2 (16. Rad1 $1 $18 Kh8 (16... g6 17. Nh6+) 17. Nb1 (17. Bxf7 bxc3 18. Bxe8 Rxe8 $11)) 16... c5 $1 $11 17. Neg3 {Strongly threatening Nh5.} c4 18. Rad1 {[%cal Of5h6]} Re6 19. Ne3 $1 Rc6 20. Ngf5 ({White should try} 20. Rd2 $14) 20... Re8 21. Bh4 (21. c3 $5 {[%cal Rc3b4]}) 21... Nb6 $2 {[#]} (21... g6 $11 22. Bxc4 Rxc4 23. Nxc4 gxf5 24. Bxf6 Nxf6 25. Qxf5 Qxc4 26. Qxf6 Qc6) 22. a5 $2 ({Only move:} 22. Nh6+ $1 $18 {[%mdl 512]} Kh8 23. a5 $1) 22... Na4 $2 {[%mdl 8192]} (22... Nbd7 $11) 23. Nxc4 $18 {[%cal Oc4d6] Threatens to win with Ncd6!} Rxc4 (23... Nc5 $142 24. Nh6+ gxh6) 24. Bxf6 Re6 {[#]} (24... g6 $18 25. Bxc4 Qxc4) 25. Nh6+ $1 {[%mdl 512]} Kh8 {[#]} 26. Bd8 Qc6 27. Qxf7 {Weighted Error Value: White=0.54/Black=1.23} 1-0

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.21"]
[White "Azhar, Puteri Munajjah Az-Z"]
[Black "Van Foreest, Machteld"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2052"]
[BlackElo "2189"]
[Annotator "NA"]
[PlyCount "119"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:03]} d5 {[%emt 0:10:33]} 2. c4 {[%emt 0:00:09]} c6 {[%emt 0:00:04]} 3. Nc3 {[%emt 0:00:16]} Nf6 {[%emt 0:00:04]} 4. Nf3 {[%emt 0:00:37]} e6 {[%emt 0:00:29]} 5. e3 {[%emt 0:00:59]} Bd6 {[%emt 0:01:33]} 6. Be2 {[%emt 0:00:50]} O-O {[%emt 0:00:16]} 7. Qc2 {[%emt 0:00:36]} Nbd7 {[%emt 0:09:44]} 8. O-O {[%emt 0:07:42]} b6 {[%emt 0:03:49]} 9. e4 {[%emt 0:04:14]} dxe4 {[%emt 0:01:17] 9...Nxe4 is more fashionable.} 10. Nxe4 {[%emt 0:00:07]} Be7 {[%emt 0:10:37]} 11. b3 {[%emt 0:13:52]} Nxe4 {[%emt 0:01:45]} 12. Qxe4 {[%emt 0:00:48]} Bb7 {[%emt 0:01:16] [#]} 13. Rd1 $146 {[%emt 0:02:25]} ({Predecessor:} 13. Bb2 Re8 14. Bd3 Nf6 15. Qh4 h6 16. Ne5 Nd7 17. Qe4 f5 18. Qe2 Nxe5 19. dxe5 Qc7 20. Bc3 Rad8 21. b4 Rd7 22. Rfd1 Red8 23. Bc2 {½-½ (23) Gonzalez Vega,A (2291)-Romero Nunez,W (2125) Havana 2010}) 13... Nf6 {[%emt 0:00:33]} 14. Qc2 {[%emt 0:02:24]} Qc7 {[%emt 0:01:19]} 15. Bb2 {[%emt 0:14:04]} Rfd8 {[%emt 0:00:41]} 16. c5 {[%emt 0:03:58]} Nd5 {[%emt 0:01:20]} 17. Ne5 {[%emt 0:04:56]} Bf6 {[%emt 0:07:37]} 18. Bf3 {[%emt 0:01:55]} Rac8 {[%emt 0:04:11]} 19. a3 {[%emt 0:01:28]} bxc5 {[%emt 0:09:08]} 20. Qxc5 {[%emt 0:00:16]} Be7 {[%emt 0:00:08]} 21. Qc2 {[%emt 0:00:35]} c5 {[%emt 0:00:50]} 22. dxc5 {[%emt 0:00:44]} Bd6 {[%emt 0:12:37]} 23. Re1 {[%emt 0:13:22]} Bxc5 {[%emt 0:03:36]} 24. b4 {[%emt 0:11:29]} Bb6 {[%emt 0:00:09]} 25. Qxc7 {[%emt 0:00:09]} Rxc7 {[%emt 0:00:08]} 26. Rac1 {[%emt 0:00:42]} Rxc1 {[%emt 0:00:25]} 27. Bxc1 {[%emt 0:03:44]} Rc8 {[%emt 0:01:10]} 28. Nd7 {[%emt 0:03:33]} Bd4 {[%emt 0:01:36]} 29. Be3 {[%emt 0:04:11]} Bb2 {[%emt 0:04:01]} 30. Bxa7 {[%emt 0:03:24]} Bxa3 {[%emt 0:01:15]} 31. b5 {[%emt 0:00:20]} Rc7 {[%emt 0:05:53]} 32. Ne5 {[%emt 0:00:36]} f6 {[%emt 0:02:38]} 33. Nd3 {[%emt 0:01:16]} Rc3 {[%emt 0:01:01]} 34. Bxd5 {[%emt 0:01:05]} (34. Be2 $1 $11 {remains equal.}) 34... exd5 {[%emt 0:01:05]} 35. Nf4 {[%emt 0:00:18]} Rb3 {[%emt 0:00:09]} 36. Ne6 {[%emt 0:00:35]} Rxb5 {[%emt 0:00:35]} 37. Nd8 {[%emt 0:00:10]} Be7 {[%emt 0:00:48]} 38. Ne6 {[%emt 0:00:18]} Ra5 {[%emt 0:01:48]} 39. Bd4 {[%emt 0:00:24] [#]} Kf7 {[%emt 0:01:36]} (39... Bd6 $1 $17 40. Nd8 Bc8) 40. Nxg7 {[%emt 0:00:24]} Bc8 {[%emt 0:01:20]} 41. Nh5 {[%emt 0:30:36]} Ra4 {[%emt 0:30:38]} 42. Bb2 {[%emt 0:00:00]} Ra2 {[%emt 0:00:00]} 43. Bd4 $1 {[%emt 0:00:00]} Ra4 {[%emt 0:00:00]} 44. Bb2 {[%emt 0:00:00]} Bg4 {[%emt 0:00:00]} 45. Ng3 {[%emt 0:00:00]} Bc5 {[%emt 0:00:00]} 46. Ra1 {[%emt 0:00:00]} (46. Rc1 $1 $11 {keeps the balance.} Rc4 47. Rxc4 dxc4 48. Kf1) 46... Rf4 {[%emt 0:00:00]} 47. Nh1 {[%emt 0:00:00]} Rb4 {[%emt 0:00:00]} 48. Bc3 {[%emt 0:00:00]} Rb3 {[%emt 0:00:00]} 49. Be1 {[%emt 0:00:00]} d4 {[%emt 0:00:00]} 50. f3 $17 {[%emt 0:00:00]} Be6 {[%emt 0:00:00]} 51. Bf2 {[%emt 0:00:00]} Rc3 {[%emt 0:00:00]} 52. Ng3 {[%emt 0:00:00]} f5 {[%emt 0:00:00]} 53. Ne2 {[%emt 0:00:00]} Rd3 {[%emt 0:00:00]} 54. Rc1 {[%emt 0:00:00]} Ba3 {[%emt 0:00:14]} 55. Rc7+ {[%emt 0:00:31]} Ke8 {[%emt 0:01:33]} 56. Bxd4 {[%emt 0:00:08]} Rd2 {[%emt 0:01:44]} 57. Kf2 {[%emt 0:00:08]} Bd6 {[%emt 0:01:39]} 58. Rc3 {[%emt 0:01:47]} Kd7 {[%emt 0:01:27]} 59. Ke3 {[%emt 0:01:32]} Ra2 {[%emt 0:00:03]} 60. Bc5 {[%emt 0:03:27]} 1/2-1/2

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.22"]
[White "Finn, Peter"]
[Black "Winter, Ondrej"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2020"]
[BlackElo "2153"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,95,35,38,40,44,56,51,50,54,54,51,57,55,51,41,48,43,85,76,93,96,104,103,114,102,107,114,127,123,170,122,120,124,130,31,153,145,169,166,155,137,164,85,175,176,197,81,80,72,147,179,188,186,176,152,152,150,159,93,95,83,83,83,177,83,161,83,134,92,221,8,8,0,0,0,8,8]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 d6 8. Be2 O-O 9. O-O Bd7 10. Re1 Nxd4 11. Bxd4 Bc6 {B38: Sicilian: Maroczy Bind with 5...Bg7 and 7...0-0.} 12. Qc2 a5 13. b3 Nd7 {White is slightly better.} 14. Bxg7 Kxg7 15. Rad1 Qb6 {[#]} 16. Nd5 $146 ({Predecessor:} 16. h4 Ne5 17. a3 f5 18. Nd5 Bxd5 19. exd5 f4 20. Qc3 Kg8 21. b4 Qa7 22. c5 axb4 23. axb4 {1-0 (54) Fonteneau,B (2138)-Battaglia,R (2164) ICCF email 2015}) 16... Bxd5 17. exd5 Nc5 18. Bf1 Rfe8 (18... e6 $14 {deserves consideration.}) 19. Re3 $16 Rad8 20. g3 e5 21. dxe6 $1 fxe6 22. Qc3+ e5 23. a3 Ne6 24. Rd5 a4 (24... Rf8 $16) 25. Rb5 (25. bxa4 $18 g5 26. Bg2) 25... Qc7 26. Bg2 (26. bxa4 Nd4 $14) 26... b6 27. Qb4 (27. bxa4 $16 {Hoping for a5.} Kh8 28. Qb2) 27... axb3 (27... Rb8 $1 $14) 28. Rxb6 Rb8 29. Rxb3 {[%cal Rb6b8]} Rxb6 30. Qxb6 Qxc4 31. Qb7+ (31. Qa7+ $1 $18 Nc7 32. Rb7) 31... Nc7 (31... Kh6 $16 {was worth a try.}) 32. Rb6 $1 $18 {Rc6 is the strong threat.} Re7 (32... Qc1+ $2 33. Bf1 Re7 34. Rc6 Qxa3 35. Rxc7 $18) 33. Qc6 ({Don't play} 33. Rxd6 $6 Qc1+ 34. Bf1 Qxa3 $14) (33. Rc6 $18 {is the precise move to win.} Qf7 34. Qb4 (34. Rxd6 Ne8 $17)) 33... Qxc6 $16 34. Bxc6 {[%mdl 4096] Endgame KRB-KRN} d5 (34... Ne6 $142) 35. a4 $1 {[%cal Ba3a4,Ba4a5][%mdl 32]} Re6 36. a5 {[%cal Oc6d5]} Kf6 37. Bb7 Ke7 38. Kf1 {White is more active.} Kd7 39. Rxe6 (39. Ke2 $142) 39... Kxe6 {KB-KN} 40. a6 Nb5 41. Ke2 Kd6 (41... Na7 $16) 42. Kd3 (42. Ke3 $1 $18 {and White stays clearly on top.}) 42... Kc5 (42... e4+ $16 {is a better defense.} 43. Ke3 Na7) 43. h4 $1 $18 h6 {[#]} ({Better is} 43... Na7) 44. f4 $1 $16 e4+ {[#]} (44... exf4 $16 {was called for.} 45. gxf4 Na7) 45. Ke3 $2 (45. Kd2 $1 $18) 45... h5 $11 {The position is equal.} 46. Bc8 d4+ 47. Kd2 {Threatens to win with Bb7.} Kb6 {Strongly threatening ...Nd6.} 48. f5 {Weighted Error Value: White=0.25 (precise) /Black=0.24 (precise)} 1/2-1/2

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.23"]
[White "Lhotska, Anna"]
[Black "Cornelisse, John"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2014"]
[BlackElo "2173"]
[Annotator "TA"]
[PlyCount "20"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,19,-11,0,-20,2,4,62,-579,-585,-561,-563,-29999]} 1. e4 c6 2. d4 d5 3. f3 Qb6 4. Nc3 dxe4 5. fxe4 e5 $1 6. dxe5 {[#] aiming for Bc4. B12: Caro-Kann: Advance Variation.} Be6 {To avoid Bc4 6...Bc5 is not played anymore.} 7. Nf3 Bc5 {[#] Prevents Nd4.} (7... Nd7 $11) 8. Na4 $146 {[%mdl 8192]} (8. Qd2 $14 {keeps the upper hand.}) ({Predecessor:} 8. Bd3 Be3 9. Na4 Qa5+ 10. b4 Qxa4 11. Bxe3 Qxb4+ 12. Bd2 Qa4 13. Rb1 Nd7 14. Rxb7 {1-0 (36) Bosiocic,M (2503)-Predojevic,B (2651) Plovdiv 2008}) 8... Bf2+ $19 9. Ke2 Bc4+ 10. Kd2 Qe3# {Weighted Error Value: White=2.25/Black=0.22 (precise)} 0-1

[Event "20th Prague Open 2022"]
[Site "Prague"]
[Date "2022.01.14"]
[Round "9.24"]
[White "Sindler, Michal"]
[Black "Yakimenko, Alexander A."]
[Result "1-0"]
[ECO "C16"]
[WhiteElo "2138"]
[BlackElo "2055"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2022.01.07"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,51,20,15,45,41,97,111,231,112,102,124,116,117,111,110,104,90,167,162,395,407,402,386,397,397,379,378,337,311,306,155,1255,1255,1255,1249,1225,1220,1487,1487,1479,1479]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 b6 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 O-O {C16: French: 3 Nc3 Bb4 4 e5: Lines without ...c5.} 8. Bg5 Qd7 (8... Nd7 $14) 9. Bd3 $1 $16 {[%cal Od3h7]} Re8 {[#]} (9... Nf5 $16) 10. Nf3 $146 (10. h4 $1 $18 {and the rest is easy. Threatens to win with Bf6.} Kh8 11. Qh5) ({Predecessor:} 10. h4 Kh8 11. h5 h6 12. Nf3 Ba6 13. Bf6 Rg8 14. Qf4 Bxd3 15. Qxh6+ Bh7 16. Ng5 gxf6 17. Qxh7# {1-0 (17) Kosintseva,T (2496)-Krush,I (2491) Khanty-Mansiysk 2014}) 10... Ba6 11. Bf6 $40 {[%csl Gf6][%cal Rg4g7][%mdl 128] White has strong attack. White is more active.} Ng6 12. Bxa6 Nxa6 {[#]} 13. h4 $1 {[%cal Bh2h4,Bh4h5][%mdl 32] And now h5! would win.} gxf6 14. exf6 {Hoping for h5.} Qd8 {[#]} (14... Qc6 $16 15. Kd1 Qxc3) 15. Qg5 $1 $18 (15. h5 Qxf6 16. hxg6 fxg6 $11) 15... e5 $2 (15... Nc5 16. dxc5 h6) 16. h5 {[%mdl 64] Pin} exd4+ 17. Kf1 h6 (17... dxc3 $2 18. hxg6 fxg6 19. f7+ Kg7 20. fxe8=N+ Qxe8 21. Qh6+ Kf7 22. Qxh7+ Kf6 23. Qh4+ Ke6 24. Re1+ Kd6 25. Rxe8 $18) 18. Qxh6 {[%csl Gf6][%cal Rh6g7]} Qxf6 {[%cal Of6h8]} 19. hxg6 {The board is on fire.} fxg6 20. Qh7+ (20. cxd4 Qg7 21. Qg5 Nc5 22. Qxd5+ Ne6) 20... Kf8 21. Nh4 ({Weaker is} 21. Nxd4 Qg7 $16) ({Not} 21. Qh6+ Ke7 22. cxd4 Rh8 23. Qe3+ Kd6 24. Rxh8 Rxh8 $14) ({Only move:} 21. cxd4 $18 Qg7 22. Qh3 (22. Ne5 Qxh7 23. Rxh7 Kg8 $18)) 21... Re6 {[#] This move loses the game for Black.} (21... Qg7 $16 22. Nxg6+ Kf7) 22. Rh3 $1 {Rf3 is the strong threat. White is clearly winning.} ({Less strong is} 22. Nf3 Rae8 $16) 22... Ke8 23. Qg8+ {[%mdl 64] Skewer} Kd7 24. Qxa8 Qe5 25. Nf3 Qe2+ 26. Kg1 {Weighted Error Value: White=0.16 (very precise) /Black=0.39} 1-0

