[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.1"]
[White "Malik, Jan"]
[Black "Navara, David"]
[Result "0-1"]
[ECO "B87"]
[WhiteElo "2286"]
[BlackElo "2733"]
[Annotator "ChessBase"]
[PlyCount "48"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:00]} a6 {[%emt 0:00:00]} 6. Bc4 {[%emt 0:00:11]} e6 {[%emt 0:00:00]} 7. Bb3 {[%emt 0:00:20]} b5 {[%emt 0:01:07]} 8. O-O {[%emt 0:00:07]} Be7 {[%emt 0:00:09]} 9. Qf3 {[%emt 0:00:14]} Qb6 {[%emt 0:00:06]} 10. Be3 {[%emt 0:08:52]} Qb7 {[%emt 0:00:12]} 11. a3 {[%emt 0:05:26]} O-O {[%emt 0:05:29]} 12. g4 {[%emt 0:02:50]} Nc6 {[%emt 0:04:07]} 13. Nxc6 {[%emt 0:00:36]} Qxc6 {[%emt 0:00:06]} 14. g5 {[%emt 0:00:42]} Nd7 {[%emt 0:00:05]} 15. Nd5 {[%emt 0:06:21]} Bd8 {[%emt 0:01:09]} 16. Bd4 {[%emt 0:09:53]} Bb7 {[%emt 0:01:37]} 17. Nc3 {[%emt 0:47:02]} Nc5 {[%emt 0:00:43]} 18. Rfe1 {[%emt 0:02:43]} Bxg5 {[%emt 0:00:50]} 19. Qg2 {[%emt 0:03:27]} Bh6 {[%emt 0:06:59]} 20. Re3 {[%emt 0:00:13]} Kh8 {[%emt 0:02:17]} 21. Rh3 {[%emt 0:00:15]} Nxb3 {[%emt 0:00:25]} 22. cxb3 {[%emt 0:00:52]} e5 {[%emt 0:00:41]} 23. Be3 {[%emt 0:00:48]} f5 {[%emt 0:00:21]} 24. Kh1 {[%emt 0:04:24]} f4 {[%emt 0:03:25]} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.2"]
[White "Krejci, Jan"]
[Black "Obsivac, Josef"]
[Result "1-0"]
[ECO "E63"]
[WhiteElo "2588"]
[BlackElo "2285"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,81,13,30,28,26,27,24,22,24,17,22,16,18,4,42,55,54,48,49,35,50,34,39,0,51,58,68,20,103,100,92,116,215,168,172,183,178,176,178,179,203,206,228,249,354,338,410,230,413,372,361,378,332,374,650,647,641,638,623,569,792,788,1492,1421,5189,5181]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. Re1 Rb8 9. Rb1 b5 10. cxb5 {E63: King's Indian: Fianchetto: Panno Variation with 7...a6} axb5 11. b4 Bd7 (11... e6 12. e4 Ne7 13. Bf4 h6 14. h3 Bb7 15. g4 g5 16. Bg3 Ng6 17. Nd2 Nd7 {½-½ (41) Svidler,P (2751)-Nakamura,H (2791) Saint Louis 2016}) 12. d5 {White has an edge.} Na7 13. Nd4 {[#]} e6 $146 ({Predecessor:} 13... Ng4 14. e4 Ne5 15. Bf1 Bg4 16. Qb3 c5 17. dxc6 Naxc6 18. Nxc6 Nxc6 {0-1 (25) Balhar,J (2311)-Kovalev,A (2526) Pardubice 2006}) 14. dxe6 fxe6 15. Qb3 Qe8 16. Bh3 {[%cal Rh3e6]} Ng4 17. Nf3 $36 {[%mdl 2048] White fights for an advantage.} h5 18. Ne4 Bc6 19. Qc2 Bd5 20. Bb2 e5 (20... Qc6 $11 21. Qxc6 Nxc6) 21. Rbd1 $14 Bc4 22. Ned2 Qf7 (22... Nc6 $1 $11) 23. Nxc4 bxc4 24. Rf1 {Strongly threatening Ng5.} Bh6 (24... Bf6 $16) 25. Bg2 {Black must now prevent Nxe5!} Kg7 (25... Rxb4 $2 26. Nxe5 $1 {[%mdl 512]} Rxb2 27. Qxb2 $18) 26. h3 Nf6 27. a3 Nc8 28. Nd2 Nb6 29. f4 exf4 30. Ne4 (30. gxf4 Kh7 $14) 30... Nbd7 (30... Qe6 {is a better defense.} 31. Bxf6+ Rxf6) 31. gxf4 $18 Rb5 32. Rd4 (32. h4 $142) 32... Rf5 $2 (32... Nxe4 33. Rxe4+ (33. Qxe4 Kh7 $16) (33. Qxc4 Rf5 $18) 33... Kh7) 33. Nxf6 Nxf6 34. Rxc4 c5 35. bxc5 dxc5 $2 (35... Rxc5 36. Rxc5 Qa7 {[%mdl 64] Pin}) 36. e4 {White is clearly winning.} Rxf4 37. Rxf4 Bxf4 {[#]} 38. e5 $1 {[%mdl 64] Discovered Attack} Be3+ 39. Kh1 Rd8 40. exf6+ Kh7 41. Re4 {Accuracy: White = 77%, Black = 29%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.3"]
[White "Vybiral, Zdenek"]
[Black "Hracek, Zbynek"]
[Result "0-1"]
[ECO "E24"]
[WhiteElo "2274"]
[BlackElo "2585"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,3,3,3,6,8,1,0,12,-23,-23,-18,11,-30,-25,-37,7,-32,0,0,0,-32,57,41,83,10,34,29,21,37,35,0,0,0,0,0,0,0,0,-25,0,0,0,-15,0,0,0,0,0,-17,-17,-12,-15,-37,-37,-59,-62,-65,-10,-118,0,0,0,0,0,-234,-212,-212,-214,-845,-844,-637,0,-29997,-29998,-29999]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 Nc6 6. Bg5 {E24: Nimzo-Indian: Sämisch: Unusual Black 5th moves and 5...c5 sidelines} (6. f3 b6 7. e4 Ba6 8. Bg5 h6 9. Bh4 g5 10. Bf2 Nh5 11. h4 Qf6 {½-½ (11) Flom,G (2493)-Roiz,M (2614) Israel 2018}) 6... h6 7. Bh4 g5 8. Bg3 {The position is equal.} Ne4 9. f3 $146 ({Predecessor:} 9. Qd3 f5 10. f3 Nxg3 11. hxg3 {0-1 (23) Zbircea,B-Moraru,A (2032) Mangalia 2007}) 9... Nxg3 ({Avoid the trap} 9... Nxc3 $2 10. Qb3 $18) 10. hxg3 f5 11. d5 Ne5 12. f4 Ng6 ({Not} 12... Nxc4 $2 13. Qd4 $18) 13. Nf3 Qf6 14. Qd4 Qxd4 15. Nxd4 Ke7 ({Black should try} 15... gxf4 $15 16. gxf4 Nxf4) 16. e3 $14 c5 {[#]} 17. Nf3 (17. Nb5 $1 $16) 17... g4 18. Nh4 Nxh4 19. Rxh4 d6 20. O-O-O exd5 21. cxd5 Bd7 22. Bd3 Kf6 23. Rdh1 Kg7 24. Rh5 Raf8 25. Kd2 b5 26. Rb1 c4 27. Bc2 Kg6 28. Rh4 h5 29. e4 fxe4 30. Bxe4+ Kf6 31. Rbh1 Be8 32. Rb1 Rf7 33. Bc2 Rc7 ({Black should play} 33... Re7 $15) 34. Ke3 (34. Rbh1 $1 $11) 34... Rc5 ({Better is} 34... Re7+ $17 35. Kf2 Bg6 36. Bxg6 Kxg6 37. Rxb5 Rhe8) 35. Kd4 $11 Bf7 36. Be4 Re8 $40 {[%mdl 128] White needs to defend precisely.} 37. Rb2 $2 {[#]} (37. Rhh1 $11) 37... Rxe4+ $1 $19 {[%mdl 512]} 38. Kxe4 {Threatens to win with Rd2.} Rxd5 {And now ...Rd3! would win.} 39. Rh1 $2 {[#]} (39. Ke3 Rd3+ {[%mdl 64] Double Attack} 40. Kf2) 39... Rd3 $1 {[%csl Gd3][%cal Rf7d5][%mdl 576] Double Attack} 40. f5 a6 $2 (40... Kg5 $19 {[%csl Gd3][%cal Rf7d5]} 41. Rxb5 Be8 42. Rxh5+ (42. Rd5 {is a self mate.} Bc6 {[%mdl 64] Pin} 43. Rxh5+ Kxh5 44. f6+ Bxd5+ 45. Kf5 Bf7 46. Kf4 Rxc3 47. a4 Rd3 48. a5 c3 49. Ke4 Bg6+ 50. Kf4 c2 51. a6 c1=Q#) 42... Kxh5) 41. Rc1 $2 {[%mdl 8192]} (41. Kf4 $11) 41... Kg5 {[%csl Gd3][%cal Rf7d5]} 42. a4 Bd5# {Accuracy: White = 35%, Black = 36%.} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.4"]
[White "Michalik, Peter"]
[Black "Jurek, Josef"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2577"]
[BlackElo "2269"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,91,16,14,17,6,21,22,13,5,16,12,10,17,18,6,8,13,14,10,10,10,10,10,7,10,7,9,10,9,9,8,18,18,18,18,18,20,14,22,23,8,118,115,155,157,154,143,152,149,144,137,137,131,178,178,216,216,306,306,306,306,399,399,423,418,418,418,417,417,440,406,716,716,679,665]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bf4 a5 {E05: Open Catalan: 5 Nf3 Be7} (10... Bd6 11. Qc1 Bd5 12. Nc3 Nc6 13. Rd1 Nb4 14. Bg5 Be7 15. Nxd5 exd5 16. a5 Nc6 17. Ne5 Na7 18. Nd3 Nb5 19. Ra4 c6 20. Qc2 Re8 21. Bc1 Rc8 {½-½ (21) Fedoseev,V (2714)-Aronian,L (2765) Germany 2019}) 11. Rd1 Na6 12. Nc3 Nb4 {The position is equal.} 13. Ne1 Bxg2 14. Nxg2 Nbd5 $146 ({Predecessor:} 14... Nfd5 15. e4 Nxf4 16. Nxf4 c6 17. h4 Qb6 18. Rd2 Rfd8 19. Rad1 Qa6 {1-0 (32) Meskovs,N (2510)-Chukavin,K (2310) Tallinn 2018}) 15. Nxd5 Nxd5 16. e4 Nxf4 17. Nxf4 c6 18. d5 cxd5 19. exd5 e5 20. d6 exf4 21. dxe7 Qxe7 22. Qxf4 Rfd8 23. Re1 Qd7 24. Re5 b6 25. Rae1 h6 26. Re7 {White threatens Qxf7+ and mate.} Qd5 27. R1e5 Qd1+ 28. Kg2 Rf8 29. Rf5 {[%cal Rf5f7]} Rad8 (29... Rae8 $1 $11 {keeps the balance.} 30. Rfxf7 Qd5+ 31. f3 Rxe7 32. Rxf8+ Kh7) 30. Qc4 $1 $16 Rd4 {[#]} 31. Rfxf7 $1 $40 {[%mdl 640] Black is in trouble.} Qf3+ (31... Rxc4 32. Rxg7+ Kh8 33. Rh7+ Kg8 34. Reg7#) 32. Kxf3 {White wants to mate with Rxf8+.} Rxc4 33. Rxf8+ Kxf8 {[%mdl 4096] Endgame [#] KR-KR} 34. Re4 $1 {[%cal Re4c4]} Rc2 35. b4 axb4 36. Rxb4 Ra2 37. h4 (37. Rxb6 $6 Rxa4 38. h4 Ra5 $16) 37... Kf7 {[#]} (37... h5 $142 38. Ke3 (38. Rxb6 Rxa4 39. Rb7 Ra6 $16) 38... Kf7) 38. h5 $1 $18 (38. Rxb6 Ra3+ 39. Kg2 Rxa4 $16) 38... Kf8 39. g4 (39. Rxb6 Ra3+ 40. Kg2 Rxa4 $16) 39... Kf7 40. Kg3 Kf8 41. f3 Kf7 42. Kf4 Ra3 43. Ke4 Kf8 44. f4 Kf7 (44... Ke8 $142 45. Ke5 (45. Rxb6 Rxa4+ 46. Kf5 Kf7 $16) 45... Ke7) 45. Kd5 Rg3 46. f5 {Accuracy: White = 85%, Black = 41%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.5"]
[White "Vrana, Frantisek"]
[Black "Stocek, Jiri"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2267"]
[BlackElo "2563"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,56,4,14,22,24,22,22,17,20,21,0,7,22,14,6,-59,-47,-54,-36,-86,-95,-113,-107,-92,-64,-115,-123,-203,-187,-222,-228,-197,-224,-289,-245,-253,-172,-178,-192,-190,-197,-677,-670,-658,-647,-983,-966,-1668,-1556]} 1. e4 c5 2. Nf3 Nc6 3. g3 Nf6 4. Nc3 d6 5. Bg2 Bg4 (5... g6 6. d4 cxd4 7. Nxd4 Nxd4 8. Qxd4 Bg7 9. O-O O-O 10. Qd3 Be6 11. Nd5 Rc8 12. c3 a6 13. Re1 Nd7 14. a4 Ne5 15. Qd1 Re8 16. h3 Nc4 17. Kh2 Bd7 18. Re2 b5 19. axb5 Bxb5 {½-½ (74) Karjakin,S (2781)-Topalov,V (2749) Paris 2017}) 6. h3 {B50: Sicilian: 2...d6, Miscellaneous} Bh5 7. g4 Bg6 8. d3 {The position is equal.} e6 9. Bf4 Nd7 10. Bg3 $146 ({Predecessor:} 10. Qd2 Be7 11. Ne2 h6 12. O-O-O Nde5 13. Nxe5 dxe5 14. Be3 {½-½ (36) Samoun,F (2322)-Valdes Escobar,A (2351) Porto Carras 2018}) 10... Be7 11. Nd2 h5 12. f4 (12. Rf1 $11) 12... Bh4 $36 {[%mdl 2048] Black has some pressure.} 13. Kf2 Qf6 {White must now prevent ...Qxf4+.} 14. Ne2 O-O-O 15. Nf3 Bxg3+ 16. Kxg3 d5 17. e5 (17. exd5 $15 exd5 18. Qd2) 17... Qe7 $17 18. Nh4 (18. g5 $17 {is a better defense.}) 18... Bh7 $19 19. Qd2 {[#]} g5 $1 {[%mdl 512]} 20. Nf3 (20. fxg5 Ndxe5) 20... gxf4+ 21. Qxf4 Rhg8 22. Kh2 hxg4 23. hxg4 f6 24. exf6 Nxf6 25. Bh3 $2 (25. g5 Rdf8 26. Qg3) 25... Rdf8 {Strongly threatening ...Nxg4+!Black is clearly winning.} 26. g5 Ne4 {[%mdl 64] [#] Pin, Discovered Attack} 27. Qg4 Bf5 28. Qg2 Bxh3 {Accuracy: White = 35%, Black = 77%.} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.6"]
[White "Babula, Vlastimil"]
[Black "Freisler, Pavel"]
[Result "1-0"]
[ECO "E53"]
[WhiteElo "2549"]
[BlackElo "2245"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,57,13,28,45,50,22,33,33,44,32,29,26,51,24,28,19,31,13,13,-14,0,-12,-16,-30,17,16,28,6,0,-11,-9,-14,-10,-420,0,0,29991,0,29992,29993,29998,29999]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. cxd5 cxd4 8. exd4 exd5 9. O-O Nc6 10. Bg5 {B14: Caro-Kann: Panov-Botvinnik Attack with 5...e6 and 5...g6} Be6 11. Ne5 Be7 12. Nxc6 $146 {White is slightly better.} ({Much weaker is} 12. Bxf6 Bxf6 13. Nf3 (13. Qh5 $2 g6 $17) (13. Nxc6 bxc6 14. Na4 g6 $15) 13... a6 $15) ({Predecessor:} 12. Bc2 Rc8 13. Re1 a6 14. a3 Qb6 15. Qd3 Ne4 16. Nd7 Bxd7 17. Nxd5 Qxb2 18. Bxe7 Nxd4 19. Bxf8 Nxc2 {½-½ (37) Ulybin,M (2570)-Shaposhnikov,E (2554) St Petersburg 2003}) 12... bxc6 13. Rc1 h6 14. Bh4 Rb8 15. Na4 Ne4 16. Bxe7 Qxe7 17. f3 Nd6 18. Re1 Qf6 19. Rxc6 Bd7 $36 {[%mdl 2048] Black fights for an advantage.} 20. Ra6 Rb4 21. Nc3 Rxb2 22. Nxd5 Qxd4+ 23. Kh1 {[#]} Qf2 $1 {[%csl Gb2][%cal Rf2g2][%mdl 512]} 24. Rg1 Rd2 25. Qb3 $2 {[%mdl 8192]} (25. Qa1 $11 Nf5 26. Bxf5 Rxd5 27. Bxd7 Rxd7 28. Qe1 Qxe1 29. Rxe1) 25... Nc8 $2 (25... Re8 $1 $19 {[%cal Re8e1] ( -> ...Re1)} 26. Qb1 (26. Rxd6 $2 Re1 $19) 26... Bf5 $1 {[%mdl 576] Pin} 27. Rxd6 Bxd3 28. Ne7+ Rxe7 29. Rd8+ Kh7 $1 {[%mdl 512]} 30. Rxd3 Rb2) 26. Rxh6 $11 Be6 $2 {[%mdl 8192] [#]} (26... gxh6 $2 {loses.} 27. Nf6+ Kh8 28. Qc3 $18) (26... Re8 $11 27. Bh7+ {[#]} Kh8 $1 {[%mdl 512]} 28. Bd3+ Kg8 29. Bh7+ Kh8 $1 {[%mdl 512]} 30. Bd3+ Kg8) 27. Nf6+ $1 {[%mdl 512]} gxf6 28. Qc3 Ne7 29. Bh7+ {Accuracy: White = 53%, Black = 55%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.7"]
[White "Zeman, Matyas"]
[Black "Nguyen, Thai Dai Van"]
[Result "0-1"]
[ECO "C15"]
[WhiteElo "2244"]
[BlackElo "2547"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,58,0,0,50,17,24,-3,-4,-7,22,-23,-23,-22,10,4,18,0,8,-45,-39,-47,-50,-60,-13,-17,-19,0,48,34,45,-193,-194,-187,-191,-253,-269,-297,-286,-515,-508,-507,-504,-518,-514,-583,-575,-571,-560]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 Be6 {C01: French: Exchange Variation} (7... Nge7 8. Qf3 Be6 9. Nh3 Qd7 10. Ng5 O-O-O 11. O-O Rdf8 12. Nxe6 fxe6 13. Qe2 Nf5 14. a4 Nd6 15. Re1 Re8 16. Bf4 Rhf8 {1-0 (57) Vachier Lagrave,M (2788)-Caruana,F (2795) chess.com INT 2016}) 8. Ne2 Qd7 9. Bf4 Nge7 {The position is equal.} 10. O-O f6 $146 ({Predecessor:} 10... O-O-O 11. a4 f6 12. a5 g5 13. Bc1 a6 14. Ba3 {0-1 (64) Lugovskoy,M (2435)-Socko,B (2623) Jurmala 2015}) 11. Qb1 b6 12. Re1 g5 13. Bd2 O-O-O 14. a4 Na5 15. Qb4 (15. Bb5 $11 c6 16. Ba6+ Kb8 17. Nc1) 15... Nc4 16. Bxc4 dxc4 17. a5 Nc6 18. Qb5 $1 Qd5 $36 {[%mdl 2048] Black fights for an advantage.} 19. Qa6+ Kb8 {[#] And now ...Bc8 would win.} 20. axb6 cxb6 21. Bf4+ $2 (21. Ng3 $14 {stays ahead.}) 21... gxf4 $19 22. Nxf4 Bc8 {aiming for ...Qf5.} 23. Qa4 (23. Nxd5 $142 Bxa6 24. Nxf6) 23... Qd6 24. g3 Rhg8 {...Qxf4 is the strong threat.} 25. d5 $2 (25. Kf1 {was called for.}) 25... Qxf4 {Black is clearly winning.} 26. dxc6 {[%csl Ga1][%cal Ra4a7] [#]} Qc7 27. Qxc4 Rge8 28. Re4 Rxe4 29. Qxe4 Rd6 {Accuracy: White = 26%, Black = 75%.} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.8"]
[White "Plat, Vojtech"]
[Black "Liska, Jiri"]
[Result "1-0"]
[ECO "D71"]
[WhiteElo "2535"]
[BlackElo "2236"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,117,7,10,0,0,0,4,-21,5,0,0,-9,9,0,29,24,28,12,24,31,26,22,16,17,18,0,36,0,7,7,14,14,20,0,56,52,50,20,20,20,27,23,33,16,14,-16,28,30,36,28,41,30,55,22,28,0,0,0,0,0,0,-2,-2,-11,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,0,0,0,-18,-8,-11,8,8,60,59,56,59,216,175,151,167,165,144,747,747,691,669,830,860,840,818]} 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Qa4 Bg7 6. cxd5 {D71: Fianchetto Grünfeld: 3 g3 d5 sidelines and 5 cxd5 (without Nf3)} Nxd5 7. Nf3 Nb6 8. Qa3 {The position is equal.} (8. Qc2 Bg4 9. Nbd2 O-O 10. h3 Bxf3 11. Nxf3 Bxd4 12. Nxd4 Qxd4 {0-1 (42) Duda,J (2738)-Vachier Lagrave,M (2778) Germany 2019}) 8... Bg4 9. Nbd2 O-O 10. h3 Bxf3 11. Nxf3 N8d7 $146 ({Predecessor:} 11... Bxd4 12. Nxd4 Qxd4 13. Qxe7 {0-1 (77) Tregubov,P (2614)-Saric,I (2661) Yerevan 2014}) 12. O-O e5 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. Qb3 Qd4 16. a4 Qc4 17. Qf3 Rad8 18. Ra3 (18. Bg5 {is more complex.} Rd7 19. a5 Nd5 20. Rfd1 f5 21. a6) 18... Qc2 (18... Qe6 {keeps more tension.} 19. Rb3 Rb8 20. Rb4 Rfe8 21. Qd3 Red8) 19. Qb3 Qxb3 20. Rxb3 Rd7 $1 21. Rb4 Rd4 (21... Nd5 $11 22. Rb3 Ne7) 22. Rxd4 $14 Bxd4 23. b3 Rd8 24. Bf3 Bf6 25. Be3 Kg7 26. a5 Nd5 $1 {[%cal Rd5e3]} 27. Bd2 b6 28. Rc1 c5 29. Kf1 h5 30. Ke1 Nc7 31. Bb7 Nb5 32. Be4 Nd4 33. Rb1 Re8 34. f3 h4 35. gxh4 Bxh4+ 36. Kf1 Nxe2 37. Kxe2 {Hoping for axb6.} f5 {[%mdl 64] [#] Pin} 38. Kd3 {And now Bc6 would win.} fxe4+ 39. fxe4 $11 {[%mdl 4096] Endgame KRB-KRB} Bf6 40. Rf1 Rd8+ 41. Kc2 Re8 42. Re1 Be5 43. Be3 Kf7 44. Kd3 Ke6 45. Rg1 {Black must now prevent axb6.} Kf7 46. a6 Rh8 47. Rh1 Ke6 48. Bg5 Rf8 {next ...Rf3+ is good for Black.} 49. Ke2 b5 50. Be3 c4 (50... Rc8 $11) 51. bxc4 $14 bxc4 52. Rg1 Rb8 $2 {[#]} (52... Rf6 $1 $14) 53. Rxg6+ Kf7 54. Rc6 Rb2+ 55. Kf3 c3 $2 {[%mdl 8192]} (55... Rb3 $16) 56. Bxa7 $18 {White is clearly winning.} Ra2 57. Be3 Ke7 58. a7 Kd7 59. Rc5 {Accuracy: White = 63%, Black = 40%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.9"]
[White "Jedlicka, Ales"]
[Black "Kriebel, Tadeas"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2236"]
[BlackElo "2514"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,104,25,18,15,57,30,24,22,24,28,41,37,47,20,20,14,14,12,14,10,8,6,22,21,21,24,45,38,52,50,52,51,58,21,30,44,48,27,39,29,74,39,52,0,8,9,20,-18,-11,-12,-20,-34,-34,-35,-10,-20,-24,-17,-10,-34,-35,-34,-39,-41,0,0,0,0,0,0,0,0,0,-5289,-5165,-29970,-29971,-29971,-29971,-29972,-29973,-29971,-29974,-29974,-29975,-29975,-29976,-29976,-29977,-29977,-29978,-29978,-29979,-29979,-29980,-29980,-29981]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Qb3 (5. Nf3 h6 6. Bf4 Nf6 7. e3 Bd6 8. Bxd6 Qxd6 9. Qc2 O-O 10. Bd3 Re8 11. h3 Be6 12. O-O Nbd7 13. a4 {½-½ (40) Shankland,S (2725)-Carlsen,M (2835) Wijk aan Zee 2019}) 5... c6 6. Nf3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6} b5 7. Bf4 $146 ({Predecessor:} 7. g3 Be7 8. Bg2 Nf6 9. O-O O-O 10. Ne5 Qb6 11. Rd1 Be6 12. Qc2 Rc8 13. Bg5 {½-½ (59) Deac,B (2559)-Short,N (2698) Douglas 2017}) 7... Nf6 8. e3 {White has an edge.} Bf5 9. Be2 Nbd7 10. O-O Be7 11. Ne5 (11. Nh4 {looks sharper.} Be6 12. Qc2 g6 13. Rfc1 O-O 14. Nf3) 11... Nxe5 12. Bxe5 O-O 13. Rac1 Nd7 14. Bg3 Nb6 15. Qd1 Rc8 16. Bd3 Qd7 17. b3 c5 18. dxc5 Bxc5 19. Ne2 Ba3 20. Rxc8 Rxc8 21. Nd4 Bxd3 22. Qxd3 g6 23. Rd1 Qe7 24. h3 Bc5 25. Nf3 Qe4 26. Be5 Qxd3 27. Rxd3 Bb4 28. Bd4 Rc1+ 29. Kh2 Nd7 30. Ne5 Bd6 31. f4 Bxe5 32. Bxe5 Nxe5 33. fxe5 $15 {[%mdl 4096] Endgame KR-KR} Ra1 34. a4 bxa4 35. bxa4 Rxa4 36. Rxd5 Kf8 37. Kg3 Ke7 38. Rd6 Ra1 39. Kf4 h6 40. g4 Rf1+ 41. Ke4 $2 {[%mdl 8192]} (41. Kg3 $11) 41... f5+ $1 $19 42. gxf5 gxf5+ {Black mates.} 43. Kd5 Rd1+ 44. Kc6 {[#]} Rxd6+ $1 45. exd6+ {[#] K3P-K3P} Kd8 $1 46. h4 h5 47. d7 a5 48. Kb5 Kxd7 49. Kxa5 Kc6 50. Kb4 Kd5 51. Kc3 Ke4 52. Kd2 Kf3 {Accuracy: White = 52%, Black = 62%.} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.10"]
[White "Kociscak, Jiri"]
[Black "Sobek, Jaroslav"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2496"]
[BlackElo "2232"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,45,0,-2,9,20,0,13,157,153,153,152,162,152,154,143,235,239,235,217,395,391,373,365,440,429,481,475,463,455,441,273,273,280,482,474]} 1. d4 d5 2. c4 e6 3. Nf3 ({Predecessor:} 3. g3 Nf6 4. Bg2 Bb4+ 5. Bd2 Be7 {1-0 (23) Korovin,M (2299)-Oblamski,V (2083) Minsk 2018}) 3... Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O dxc4 $146 {E11: Bogo-Indian} (7... Nbd7 8. Qc2 c6 9. Bf4 b6 10. cxd5 cxd5 11. Rc1 Bb7 12. Bc7 Qe8 13. Qb3 Nb8 14. a4 Ne4 15. Nc3 Nxc3 16. Rxc3 Na6 17. Bf4 Bb4 18. Rc2 Qe7 19. Rac1 Rac8 20. Ne5 Rxc2 21. Qxc2 {½-½ (48) Ding,L (2812)-Karjakin,S (2753) Astana 2019}) 8. Qc2 b5 9. a4 {White wants to play Ne5.} c6 (9... b4 $11 {keeps the balance.}) 10. axb5 $16 cxb5 11. Ng5 h6 12. Bxa8 {Threatens to win with Nf3.} hxg5 13. Rxa7 Nd5 {[#]} (13... Bd7 $16) 14. Ba5 $1 $18 {[%cal Ra5d8]} Qe8 15. Nc3 Bf6 $2 (15... Bd6 16. Nxd5 exd5) 16. Nxd5 exd5 17. Bb4 Bxd4 18. Raa1 Qe5 19. Bxf8 Kxf8 20. Rad1 Be6 21. Rxd4 {[%mdl 64] Clearance} Qxd4 {[#]} 22. Rd1 $1 {[%cal Rd1d4]} Qc5 $2 {[#]} (22... Qe5 {was called for.} 23. Qd2 d4 24. Qxd4 Qxd4 25. Rxd4 Ke7) 23. Bxd5 $1 {[%mdl 512] Accuracy: White = 98%, Black = 33%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.11"]
[White "Ludvik, Tomas"]
[Black "Simacek, Pavel"]
[Result "0-1"]
[ECO "A61"]
[WhiteElo "2222"]
[BlackElo "2471"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,46,35,27,36,29,37,36,50,26,34,17,29,-8,0,0,0,-218,-217,-245,-270,-470,-474,-458,-451,-462,-453,-558,-545,-539,-531]} 1. d4 c5 2. d5 Nf6 3. c4 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4 Bg7 9. h3 O-O 10. e3 Ne8 {A61: Modern Benoni: Nf3 without early e4} (10... Qe7 11. Bd3 Nbd7 12. O-O Ne8 13. e4 Rb8 14. Re1 Nc7 15. Qd2 Ne5 16. Nxe5 Bxe5 17. Bxe5 Qxe5 18. a5 {1-0 (42) Akobian,V (2647)-Ponkratov,P (2613) Riadh 2017}) 11. Be2 Nd7 12. O-O Rb8 {White is slightly better.} 13. Nd2 Ne5 14. Bh2 f5 15. Qb3 $146 ({Predecessor:} 15. a5 Bd7 16. Qc2 Nc7 17. Rfd1 Bb5 18. Nxb5 axb5 {½-½ (50) Diermair,A (2490)-Steindl,J (2238) Austria 2018}) 15... b5 16. axb5 axb5 17. Bxb5 $2 ({Don't play} 17. Nxb5 Bd7 $17) (17. Bxe5 $11 {and White has nothing to worry.} Bxe5 18. Nc4 {[%mdl 64] Pin} (18. Nxb5 Bd7 $17) (18. Bxb5 $2 Nc7 $19)) 17... Nc7 $19 18. Ra5 {[#]} Bd7 $1 19. Ndb1 $2 (19. Rfa1 Nf7 20. Ndb1 Bxc3 21. bxc3 (21. Nxc3 $2 Bxb5 22. R5a3 Be2 $19) 21... Nxb5 22. Qa2) 19... Nxb5 {Black is clearly winning.} 20. Rxb5 Bxb5 21. Nxb5 Qa5 22. Bxe5 Bxe5 23. N1a3 Qb4 {Accuracy: White = 25%, Black = 73%.} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.12"]
[White "Zwardon, Vojtech"]
[Black "Babula, Milan"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2458"]
[BlackElo "2204"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,101,41,65,54,70,56,92,106,87,60,63,51,70,56,154,137,179,195,186,196,196,196,196,197,184,190,224,196,196,195,196,196,184,195,186,187,196,196,186,189,196,169,268,262,260,246,385,372,344,225,232,202,209,202,216,226,313,311,328,336,333,290,285,283,247,198,239,224,211,219,387,384,410,412,509,509,1591,1546,1601,1310,2533,2476,2317,1798,1623,1416,29977,29977,29986,29982,29980,29982,29986,29987]} 1. c4 e5 2. g3 f5 3. d4 Bb4+ (3... d6 4. Nc3 Nf6 5. Bg2 Be7 6. b3 O-O 7. Bb2 c6 8. e3 e4 9. Nh3 d5 10. O-O Be6 11. Ng5 Bd7 12. f3 Na6 13. a3 Nc7 {½-½ (50) Howell,D (2644)-Yu,Y (2729) Doha 2016}) 4. Nd2 exd4 5. Ngf3 c5 6. Bg2 {[%mdl 1024] White has compensation. A20: English Opening: 1...e5} Nf6 7. O-O O-O {[#]} 8. Nb3 $1 {White is better.} d6 9. e3 dxe3 10. Bxe3 Nc6 11. Qd3 Be6 $146 {[#]} (11... Ne4 $14) ({Predecessor:} 11... Ne4) 12. Ng5 $1 $16 {[%cal Rg5e6]} Ne5 13. Nxe6 Nxd3 14. Nxd8 Raxd8 15. a3 Be1 16. Rfxe1 Nxe1 17. Rxe1 Rfe8 18. Rd1 b6 19. Nc1 h6 20. h3 g5 21. Ne2 Ne4 22. h4 Kf7 23. hxg5 hxg5 24. Bxe4 Rxe4 25. Bxg5 {Threatens to win with Nc3.} Rd7 (25... Rg8 $142) 26. Nf4 $18 Rxc4 27. Rd5 Rd4 (27... b5 {might work better.} 28. Rxf5+ Ke8) 28. Rxf5+ Ke8 29. Rf6 Rf7 30. Re6+ Kd7 {White should prevent ...Rdxf4.} 31. Re2 d5 32. Kg2 Rd1 33. Ng6 Rg7 34. Ne5+ Kd6 35. f4 d4 36. Kf3 Kd5 37. Ng4 Rf1+ 38. Kg2 Rb1 39. Nf2 Kc4 $2 (39... c4 40. Ne4 Kc6) 40. g4 Kb3 41. Bf6 Rf7 42. g5 Rxb2 (42... Rf8 $142 43. f5 c4) 43. Rxb2+ Kxb2 44. f5 Kxa3 45. g6 Rxf6 {[%mdl 4096] Endgame KR-KN} 46. g7 Rxf5 47. g8=Q b5 48. Qg6 {White mates.} Rd5 49. Qd3+ {Played: Qg6-a6} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.13"]
[White "Kanakova, Natalie"]
[Black "Kraus, Tomas"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2202"]
[BlackElo "2456"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,108,17,-49,-21,-15,-18,-40,-28,-81,-90,-99,-97,-99,-99,-94,-82,-82,-75,-80,-70,-82,-66,-82,-76,-99,-99,-99,-94,-104,-88,-106,-82,-82,-58,-59,-27,-46,-8,-8,0,0,0,0,0,0,0,0,0,0,8,8,4,0,0,0,0,0,0,0,0,0,0,0,0,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,0,-2,0,-2,-2,-2,-2,-2,-2,-2,-2,-2,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 c5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 e6 5. e4 d5 6. d3 ({Better is} 6. exd5 $11 exd5 7. cxd5) 6... dxc4 {A19: English Opening: Flohr-Mikenas System with 3...c5} 7. dxc4 Qxd1+ 8. Kxd1 (8. Nxd1 Nd4 9. Ne3 Bd6 10. Ne2 Bd7 11. b3 Bc6 12. Bb2 O-O-O 13. Nc3 h5 14. h4 {0-1 (29) De Eccher,S (2211)-Markus,R (2662) Ortisei 2016}) 8... Bd7 {Black is slightly better.} 9. Be3 (9. Ke2 $11 {keeps the balance.}) 9... Ng4 $17 10. Nf3 $146 ({Predecessor:} 10. Nge2 Nxe3+ 11. fxe3 Ne5 12. b3 Ng4 13. Kd2 O-O-O 14. Nf4 {0-1 (26) Pavlovic,R (2320)-Zelcic,R (2450) Pula 1993}) 10... Nxe3+ 11. fxe3 Bd6 12. Ke2 Ne5 13. Rad1 Bb8 ({And not} 13... Nxc4 14. b3 $16) 14. b3 Nxf3 15. Kxf3 Bc6 16. Kf2 Ke7 17. Rd3 Be5 18. Ne2 Rad8 19. Rhd1 Rxd3 20. Rxd3 h5 21. h4 f6 22. Nf4 {[#] Ng6+ is the strong threat.} Rh6 (22... Be8 {seems wilder.} 23. Rd1 b6 24. Nd3 Bb8 25. e5 Bxe5 26. Nxe5 fxe5 27. Be4 Rg8) 23. Rd1 g5 24. Nd3 {The position is equal.} gxh4 25. gxh4 Bd6 26. Bf3 Rg6 27. Nf4 Bxf4 28. exf4 $11 {[%mdl 4096] Endgame KRB-KRB} Rg8 29. a3 e5 30. fxe5 fxe5 31. Rg1 Rxg1 32. Kxg1 {KB-KB} Be8 33. Kf2 Kf6 34. Ke3 Kg6 35. Be2 Bd7 36. Bd1 Be6 37. a4 Bg4 38. Bc2 b6 39. Kd2 Kf6 40. Kc3 Ke6 41. Kd2 Kd6 42. Kc3 Kc6 43. Bd3 Bd1 44. Bf1 Bf3 45. Bd3 Kb7 46. Bc2 Ka6 47. Kd2 Ka5 {[#] And now ...Kb4 would win.} 48. Kc3 $1 Be2 49. Bb1 a6 50. Bc2 Bf3 51. Bd3 Bd1 52. Bb1 Bf3 53. Bd3 Bg4 54. Bc2 Bf3 {Accuracy: White = 87%, Black = 54%.} 1/2-1/2

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.14"]
[White "Biolek, Richard Jr."]
[Black "Belunek, Vladimir"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2442"]
[BlackElo "2201"]
[Annotator "RC"]
[PlyCount "49"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:17]} 2. Bf4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:21]} 3. e3 {[%emt 0:00:02]} c5 {[%emt 0:01:21]} 4. Nf3 {[%emt 0:09:37]} Nc6 {[%emt 0:00:15]} 5. Be2 {[%emt 0:17:28]} cxd4 {[%emt 0:05:13]} 6. exd4 {[%emt 0:00:03]} Bf5 {[%emt 0:00:51]} 7. O-O {[%emt 0:00:15]} h6 {[%emt 0:00:36]} 8. c3 {[%emt 0:11:36]} e6 {[%emt 0:01:19]} 9. Qb3 {[%emt 0:00:19]} Qc8 {[%emt 0:04:16]} 10. Ne5 {[%emt 0:04:40]} Be7 {[%emt 0:04:09]} 11. Ba6 {[%emt 0:06:41]} bxa6 {[%emt 0:38:47]} 12. Qa4 {[%emt 0:00:14]} O-O {[%emt 0:09:17]} 13. Nxc6 {[%emt 0:00:59]} Re8 {[%emt 0:00:39]} 14. Nxe7+ {[%emt 0:04:11]} Rxe7 {[%emt 0:00:12]} 15. Nd2 {[%emt 0:00:15]} Rb7 {[%emt 0:06:15]} 16. Qa3 {[%emt 0:00:31]} Nd7 {[%emt 0:11:02]} 17. Rac1 {[%emt 0:01:03]} Rb6 {[%emt 0:02:08]} 18. c4 {[%emt 0:06:05]} Rc6 {[%emt 0:00:53]} 19. c5 {[%emt 0:04:28]} e5 {[%emt 0:02:32]} 20. Bxe5 {[%emt 0:00:46]} Nxe5 {[%emt 0:00:06]} 21. dxe5 {[%emt 0:00:01]} Qc7 {[%emt 0:01:46]} 22. Nf3 {[%emt 0:04:00]} Be4 {[%emt 0:00:36]} 23. Nd4 {[%emt 0:00:05]} Rg6 {[%emt 0:00:17]} 24. f3 {[%emt 0:00:06]} Qxe5 {[%emt 0:00:34]} 25. Qe3 {[%emt 0:00:02]} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.15"]
[White "Bulockin, Martin"]
[Black "Cernousek, Lukas"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2199"]
[BlackElo "2438"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,103,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-14,-17,-24,-16,-27,-15,-25,-21,-24,-25,-29,-20,-51,-26,-26,-20,-29,-25,-26,-32,-25,-29,-43,-20,-30,-37,-59,-49,-105,-68,-118,-128,-133,-125,-144,-146,-150,-147,-143,-122,-120,-108,-142,-155,-126,-132,-128,-129,-164,-161,-167,-161,-198,-186,-214,-209,-268,-262,-335,-345,-281,-241,-235,-224,-439,-467,-359,-83,-4602,-4602,-29972,-29973,-29973,-29974,-29972,-29972,-29969,-29973,-29972,-29971,-29985]} 1. d4 d5 2. Bf4 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 Bf5 (5... Nf6 6. Nd2 Bg4 7. Qb3 Qc8 8. Ngf3 e6 9. Bd3 Bh5 10. O-O Bg6 11. Bxg6 hxg6 12. Rae1 Be7 13. g3 O-O 14. Ne5 Nxe5 15. dxe5 Nd7 16. h4 Nc5 17. Qc2 Qc6 18. Re3 Qa6 19. Qb1 Rac8 20. Kg2 b5 {0-1 (50) Duda,J (2738)-Van Foreest,J (2612) Wijk aan Zee 2019}) 6. Bd3 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} Bxd3 7. Qxd3 e6 8. Nf3 {The position is equal.} Nge7 9. Nbd2 Ng6 10. Bg3 Bd6 11. O-O $146 ({Predecessor:} 11. Qe3 O-O 12. Ne5 Bxe5 13. Bxe5 {0-1 (42) Ehab,T (1841)-Girya,O (2456) Astana 2019}) 11... Bxg3 12. fxg3 O-O 13. Kh1 Re8 14. Rae1 Qd6 15. Nb3 Re7 16. Rd1 Rd8 17. Qb5 f6 18. Na5 Nxa5 (18... a6 {keeps more tension.} 19. Qb6 Nxa5 20. Qxa5 e5 21. Rd2 e4) 19. Qxa5 a6 20. Rfe1 Nh8 21. Qa4 Nf7 22. Qb3 Qc6 23. a4 a5 24. Qa3 Nd6 25. Kg1 Rde8 26. b4 (26. Kh1 $15) 26... b6 27. g4 Ne4 28. Re3 Rc7 {[%cal Re4c3]} 29. b5 {[#]} Qd6 $1 {[%cal Rd6a3]} 30. Qxd6 Nxd6 31. Nd2 Kf7 32. g5 Rec8 33. Rde1 Rxc3 ({Don't play} 33... fxg5 $6 34. Rf1+ Ke7 35. Rfe1 $11) 34. Rxe6 Re8 35. Rxe8 Nxe8 36. gxf6 gxf6 $17 {[%mdl 4096] Endgame KRN-KRN} 37. Ra1 Nd6 38. Ra2 Ne4 39. Nxe4 dxe4 $19 {KR-KR} 40. Kf2 Ke6 41. d5+ Kxd5 42. Rd2+ Kc5 {[#] Threatens to win with ...e3+.} 43. Rd7 Kb4 44. Rxh7 $2 (44. Rd6 {was worth a try.}) 44... Kxa4 45. h4 Kb3 $2 (45... Kxb5 $19 {has better winning chances. Strongly threatening ...a4.} 46. h5 Rc2+ 47. Kg3 a4) 46. Rh8 $2 {[%mdl 8192]} (46. Rb7 $17) 46... a4 {[%cal Ba5a4,Ba4a3,Ba3a2][%mdl 32]} 47. h5 a3 {Black mates.} 48. h6 a2 49. Ra8 Rc7 50. Ke3 Rh7 51. Kxe4 Rxh6 52. Kd4 {Accuracy: White = 36%, Black = 65%.} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.16"]
[White "Kislinsky, Alexey"]
[Black "Bartos, Jan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2429"]
[BlackElo "2178"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,55,29,54,46,53,31,45,28,59,22,50,47,97,16,32,10,36,57,30,45,37,45,102,80,91,81,56,39,197,194,493,514,484,441,3124,3045,5506,5500,5436,5429,5028,5014,2405,2386,1738,1474,1339,802]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. h3 (5. Nf3 g6 6. Be2 Bg7 7. O-O O-O 8. h3 Nc6 9. Be3 b6 10. Qd2 Bb7 11. Rad1 e6 12. Bh6 Ne7 13. Bxg7 Kxg7 {½-½ (23) Giri,A (2783)-Nakamura,H (2746) St Petersburg 2018}) 5... g6 6. Nf3 {B01: Scandinavian Defence} Bg7 7. Bf4 O-O 8. Qd2 {White is slightly better.} Nc6 9. Bc4 b6 $146 ({Predecessor:} 9... Re8 10. O-O-O a6 11. Ne5 Nxe5 12. Bxe5 c6 13. Rhe1 b5 14. Bb3 {1-0 (48) Romanelli,G (2010)-Frangione,F (1737) Moron 2018}) 10. O-O-O e6 11. Bh6 (11. d5 $16 Na5 12. Qe2 Nxc4 13. dxe6) 11... Bb7 $11 12. h4 Ne7 13. Bxg7 Kxg7 14. h5 $36 {[%mdl 2048] White is pushing.} Nxh5 15. Be2 {And now g4 would win.} Nf6 {[#]} (15... Ng8 $14) 16. Qh6+ $1 $16 Kh8 17. g4 {Hoping for Ng5.} Neg8 18. Qh4 h5 $2 (18... h6 $14) 19. gxh5 $18 Nxh5 $2 (19... g5 {keeps fighting.} 20. Qxg5 Nd5) 20. Ng5 {White is clearly winning.} Ngf6 {[#]} 21. d5 $1 {[%mdl 512]} e5 (21... Qe7 $142 22. Rdg1 c5 23. Bxh5 Kg7 24. Bxg6 Rh8 25. Nxe6+ Qxe6 26. Bh7+ Kf8 27. dxe6 Ke7) (21... Bxd5 22. Nxd5) 22. Rdg1 {[%cal Re2h5]} Bxd5 23. Nxd5 Qxd5 24. Bxh5 Nxh5 {[#]} 25. Qxh5+ $1 {[%mdl 512]} Kg7 (25... gxh5 26. Rxh5+) 26. Qh6+ Kf6 27. Nh7+ Ke7 28. Nxf8 {Accuracy: White = 64%, Black = 25%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.17"]
[White "Horak, Jan"]
[Black "Pulpan, Jakub"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2158"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,71,14,12,10,8,14,7,24,8,16,23,21,18,28,16,10,-3,19,14,22,26,39,28,25,19,66,0,21,-8,6,0,74,15,51,36,39,33,37,39,58,41,41,0,25,18,36,26,59,0,41,35,34,33,50,0,33,0,19,32,89,98,95,115]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6 6. h3 a6 {C50: Hungarian Defence and Giuoco Pianissimo} 7. a4 Ba7 8. Be3 $146 ({Predecessor:} 8. c3 O-O 9. Bg5 h6 10. Bh4 g5 11. Nxg5 hxg5 12. Bxg5 Kg7 13. Qf3 {1-0 (43) Nepomniachtchi,I (2767)-Fressinet,L (2672) Doha 2016}) 8... O-O {The position is equal.} 9. Nbd2 Ne7 {[%cal Bc6e7,Be7g6,Bg6f4][%mdl 32]} 10. Bxa7 Rxa7 11. c3 Ng6 12. Re1 Nf4 13. Kh2 c6 14. d4 Qc7 15. dxe5 dxe5 16. Qc2 b5 17. Bf1 Qb6 18. Nb1 (18. Kg1 $14) 18... Re8 19. g3 {[#] Hoping for a5.} Ng6 20. c4 Qc5 (20... Be6 $11) 21. Qe2 (21. axb5 $16 cxb5 {[#]} 22. b4 $1 {[%mdl 512]}) 21... b4 22. Nbd2 h5 23. Nb3 Qe7 24. Qe3 a5 25. Rad1 h4 26. Qc5 Qc7 27. Qd6 Qb7 28. Ng5 Nh7 29. Nf3 (29. Nxh7 $1 $14 Kxh7 30. Be2) 29... hxg3+ 30. fxg3 Nhf8 31. Qc5 Qc7 32. Qd6 Qb7 $1 33. Qc5 Ne6 34. Qe3 c5 (34... Qe7 $14) 35. Nxc5 $16 Nxc5 36. Qxc5 {Accuracy: White = 47%, Black = 31%.} 1/2-1/2

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.18"]
[White "Roubalik, Jakub"]
[Black "Havelka, Ondrej"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2417"]
[BlackElo "2156"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,69,18,16,-2,0,0,0,-9,0,1,0,-19,0,0,0,0,0,0,0,0,-26,-50,-52,-55,-33,-33,-30,-35,34,28,70,77,80,76,506,502,452,63,65,66,156,158,229,229,329,327,627,625,612,583,555,506,501,498,670,662,661,661]} 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bf4 O-O 6. e3 b6 7. cxd5 Nxd5 8. Bd3 {D37: Queen's Gambit Declined: 5 Bf4} (8. Nxd5 Qxd5 9. Bd3 Qa5+ 10. Kf1 Ba6 11. Bxc7 Bxd3+ 12. Qxd3 Na6 13. Bg3 Nb4 14. Qe2 Rfc8 15. a3 Qa4 {0-1 (54) Caruana,F (2832)-Nakamura,H (2746) London 2018}) 8... Nxf4 9. exf4 Bb7 10. O-O {The position is equal.} Nd7 11. Qe2 Nf6 12. Rfe1 $146 ({Predecessor:} 12. Rac1 Nd5 13. Nxd5 Bxd5 14. Be4 Rc8 15. Ne5 a5 16. Bxd5 Qxd5 {1-0 (47) Heimann,A (2591)-Tazzioli,L (2114) Barcelona 2017}) 12... c5 13. dxc5 Bxc5 14. Rad1 {Black should prevent Bxh7+!} Qc7 15. Ne5 Rad8 16. Bc4 Ba8 17. Kh1 g6 18. f3 Nh5 19. g3 Ng7 20. Ne4 Be7 (20... Bxe4 $15 21. fxe4 Bd4) 21. Rc1 $14 {Hoping for Bd5!} Qb7 22. Bb5 $36 {[%mdl 2048] White has strong initiative.} Nf5 {[#]} 23. Bc6 $1 {[%cal Rc6b7]} Nd4 $2 {[%mdl 8192]} (23... Qb8 $16) 24. Bxb7 $18 Nxe2 25. Rxe2 $2 (25. Rc7 $18) 25... Bxb7 $14 26. Rc7 Rd1+ (26... Bxe4 $1 $14 27. Rxe7 (27. fxe4 Bd6 $14) 27... Bd5) 27. Kg2 $16 Ba6 (27... Bxe4 $16 {was necessary.} 28. fxe4 (28. Rxe7 Bd3 $16) 28... Bf6) 28. Rf2 $18 Bd8 (28... Bc5 $142) 29. Rxa7 Bb5 $2 (29... f6 30. Rxa6 fxe5 31. fxe5 Rd5) 30. Nc3 $1 {[%csl LRb5,LRd1][%mdl 64] [#] Double Attack. White is clearly winning.} f6 31. Nxd1 fxe5 32. fxe5 Bc6 33. Nc3 b5 34. Ra6 Bb7 35. Rxe6 {Accuracy: White = 56%, Black = 37%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.19"]
[White "Bures, Martin"]
[Black "Miesbauer, Jan"]
[Result "1/2-1/2"]
[ECO "D93"]
[WhiteElo "2150"]
[BlackElo "2402"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,119,27,-18,48,-91,25,24,39,39,25,24,23,-18,-10,-11,-11,-11,-11,-17,-14,-12,-16,-15,-21,-12,-8,-8,-15,-18,-22,-23,-20,-16,-18,-26,-14,-14,0,-80,-80,-80,-80,-80,-80,-90,-84,-88,-102,-102,-96,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-39,-120,-34,-120,-120,-120,-34,-34,-34,-34,-34,-34,-34,-34,-34,-34,-34,-34,-8,-34,-34,-34,-34,-34,-8,-34,0,0,0,-34,0,0,0,0,0,-34,-34,-34,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Qb3 {[%cal Rc4d5]} (7. dxc5 $5 {[%cal Rc4d5]} Be6 8. Qb3 $11) 7... Be6 {D93: Grünfeld: 4 Nf3 Bg7 5 Bf4 0-0 6 e3} (7... cxd4 $11 8. Nxd4 (8. exd4 dxc4 9. Bxc4 Nc6 $15) 8... Nh5 9. Bxb8 Bxd4) 8. Ng5 $146 (8. Qxb7 $14 {stays ahead.} Qb6 9. Qxb6 (9. Qxa8 Nc6 $17) 9... axb6 10. Rd1) ({Predecessor:} 8. Qxb7 Qb6 9. Qxb6 axb6 10. dxc5 bxc5 11. Ng5 Nc6 12. Nxe6 fxe6 13. Be2 d4 14. Nb5 {½-½ (59) Sakaev,K (2594)-Gelfand,B (2747) Jurmala 2015}) 8... dxc4 (8... cxd4 $17 9. exd4 Qd7) 9. Qxb7 $11 Bd5 {White has an edge.} 10. Nxd5 Qxd5 11. Qxd5 Nxd5 12. Be5 cxd4 13. Bxg7 Kxg7 14. Bxc4 Nb6 15. Bb3 Nc6 16. O-O dxe3 17. fxe3 {[%cal Rb3f7]} Ne5 18. Rac1 h6 19. Nf3 Nxf3+ 20. gxf3 Rac8 21. Kf2 a5 22. a3 e6 23. Rfd1 Rxc1 24. Rxc1 {[%mdl 4096] Endgame KRB-KRN} Rb8 25. Rc7 (25. Bd1 $11 {remains equal.}) 25... Nd5 $17 26. Bxd5 Rxb2+ 27. Kg3 {And now Bxe6 would win.} exd5 {KR-KR} 28. Rc5 {[#]} a4 $1 {...Rb3 is the strong threat.} 29. Ra5 Rb3 30. Rxa4 Rxe3 31. Rd4 Rxa3 32. Rxd5 g5 33. Rd4 h5 34. h3 Kg6 35. Rd6+ f6 36. Rd5 Rb3 37. Ra5 Rd3 38. Rb5 h4+ 39. Kg2 Rd2+ 40. Kg1 Kf7 (40... Re2 $17 41. Ra5 Rd2) 41. Rb6 (41. Rb7+ $15 Kg6 42. Rb5) 41... Ke7 {[#]} (41... Rd3 $17 42. Kf2 Kg6) 42. Ra6 (42. f4 $1 $15 {[%mdl 512]}) 42... Rd6 43. Ra4 Ke6 ({Black should try} 43... f5 $17 44. Ra2 Kf6) 44. f4 $1 $15 Rd3 45. fxg5 fxg5 46. Ra5 Kf6 47. Kg2 Rd2+ 48. Kg1 Re2 49. Rb5 Re5 50. Rb8 Kf5 51. Rf8+ Ke4 52. Kg2 Ke3 53. Rf7 Ke2 54. Rf8 Re3 55. Rf2+ Ke1 {( -> ...Rg3+)} (55... Kd3 {is interesting.} 56. Rf3 Kd4 57. Kf2 Re4 58. Rb3 Rf4+) 56. Rf1+ Kd2 57. Rf5 Rg3+ 58. Kh2 Ke3 59. Ra5 Rf3 60. Rxg5 {Accuracy: White = 56%, Black = 55%.} 1/2-1/2

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.20"]
[White "Mikes, Jan"]
[Black "Jun, Rudolf Jr."]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "2394"]
[BlackElo "2138"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,79,19,23,224,218,205,210,207,216,243,237,231,215,314,318,382,372,322,325,454,435,420,333,365,304,286,287,253,290,477,468,635,635,603,533,668,663,635,304,411,411,609,602,608,572,572,586,700,711,597,787,854,684,1060,1033,991,966]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 a6 7. O-O Be7 8. f4 Qc7 9. a4 O-O 10. Kh1 Nc6 11. Be3 Bd7 12. Qe1 Nxd4 13. Bxd4 e5 $2 {[#] B85: Sicilian Scheveningen: 6 Be2 a6, lines with early Be3} (13... Bc6 $11) (13... Bc6 14. Qg3 Ne8 15. Bd3 Bf6 16. e5 dxe5 17. fxe5 Rd8 18. Bb6 Qxb6 19. exf6 g6 20. Be4 Nd6 21. Qh4 Bxe4 22. Nxe4 Nxe4 23. Qxe4 Qxb2 {0-1 (49) Azarov,S (2575)-Iturrizaga Bonelli,E (2637) chess.com INT 2019}) 14. fxe5 $1 $18 {[%mdl 64] Discovered Attack} dxe5 15. Qg3 Qc6 {White is clearly better.} 16. Bxe5 {Black must now prevent Nd5!} Ne8 17. Nd5 Bd8 18. c4 f6 $146 (18... Qg6 $142 19. Qe3 Rc8) ({Predecessor:} 18... Qg6 19. Qxg6 hxg6 20. a5 Rc8 21. Rfd1 {1-0 (33) Holaszek,H-De Castro,E Skopje 1972}) 19. Bc3 Nd6 20. Bd3 Ne8 21. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} Kh8 22. b5 Qe6 23. Bb4 Rf7 24. Nf4 Qg4 25. Qxg4 Bxg4 26. h3 Bd7 $2 {[#]} (26... g5 27. Nd5 Be6) 27. e5 $1 {[%mdl 512]} fxe5 {[#]} 28. Ng6+ $1 {[%mdl 576] Discovered Attack} Kg8 (28... hxg6 29. Rxf7) 29. Nxe5 Rxf1+ 30. Rxf1 {[%csl Gb4][%cal Rf1f8]} Nf6 {[#]} 31. Rxf6 (31. Be4 $142 $1 {[%mdl 512]} Be7 (31... Nxe4 32. Rf8#) 32. Bxb7 {[%mdl 64] Double Attack}) 31... Bxf6 32. Nxd7 Bd4 (32... Bg5 $142 33. Be4 axb5 34. axb5 Ra1+ 35. Kh2 Bf4+ 36. g3 Ra2+ 37. Kg1 Bxg3 38. Bxb7 Kf7) 33. Be4 {White is clearly winning.} axb5 34. Bd5+ Kh8 35. axb5 {[%cal Ba4b5,Bb5b6][%mdl 32]} Ra1+ 36. Kh2 b6 37. Bd6 Ra7 38. Bc6 Kg8 39. c5 bxc5 40. b6 {Accuracy: White = 74%, Black = 34%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.21"]
[White "Ockay, Tomas"]
[Black "Mrazek, Lumir"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2131"]
[BlackElo "2364"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,42,16,22,22,41,0,23,-26,-14,-17,-14,-44,-63,-41,-40,-60,-56,-81,-40,-78,-89,-226,-212,-551,-553,-529,-543,-554,-500,-2285,-1732,-29990,-29991]} 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 O-O 5. Bg2 c5 6. c4 d5 7. cxd5 {A05: Réti Opening: 1 Nf3 Nf6} Qxd5 (7... Nxd5 8. Bxg7 Kxg7 9. O-O Nc6 10. d4 cxd4 11. Nxd4 Nxd4 12. Qxd4+ Nf6 13. Qe5 Qb6 14. Nc3 Be6 15. Na4 Qb4 16. Qc5 a5 17. Qxb4 axb4 18. Bxb7 Ra5 19. Rfc1 Rd8 20. Rc5 {1-0 (67) Meier,G (2647)-Sebenik,M (2551) chess.com INT 2018}) 8. O-O Qh5 9. d4 {White has an edge.} Rd8 10. Nbd2 $146 ({Predecessor:} 10. Qc2 cxd4 11. Nxd4 Na6 12. Rd1 e5 13. Nc6 Re8 14. Nxe5 Rxe5 15. Bxe5 Qxe5 {½-½ (63) Semerij,Y (2228)-Efimenko,Z (2432) Alushta 2001}) 10... cxd4 11. Bxd4 Nc6 12. Bb2 Bg4 13. Qb1 Rac8 $36 {[%mdl 2048] Black is more active.} 14. a3 Bf5 15. Qa2 {[#]} e5 $1 {[%mdl 512] aiming for ...e4.} 16. Nc4 (16. Rad1 $17) (16. Bxe5 Nxe5) 16... e4 $19 17. Nfe5 $2 (17. Nh4 {is tougher.}) 17... Nxe5 18. Nxe5 Rd2 19. Rab1 e3 20. Rbc1 (20. Bf3 $142 Bg4 21. b4 Qxe5 22. Bxe5 Rxa2 23. Bxf6 Bxf3 24. Bxg7 Bxe2 25. Bh6 Bxf1 26. Rxf1) 20... exf2+ 21. Kh1 Rxc1 {[%mdl 64] Pin. Accuracy: White = 27%, Black = 85%.} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.22"]
[White "Hausner, Ivan"]
[Black "Taus, Martin"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2349"]
[BlackElo "2104"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,76,42,57,58,53,54,43,54,43,40,72,73,87,63,73,61,64,59,81,62,55,50,57,12,18,0,50,31,15,36,111,-37,-32,-25,137,132,117,-217,-227,-233,-237,-206,-215,-194,-110,-419,-402,-493,-466,-485,-485,-477,-470,-439,939,939,897,874,29997,29998,29999]} 1. c4 Nc6 2. Nc3 e5 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 d6 7. g3 Be7 8. Bg2 O-O 9. O-O c6 10. b3 {A54: Old Indian Defence with Nf3, but without e4} Qb6 (10... Qa5 11. Bb2 Qh5 12. h4 Be6 13. Rad1 Qg6 14. Qf4 Nh5 15. Qd2 f5 16. e3 Rad8 17. Qc2 Bf6 {1-0 (66) Ghaem Maghami,E (2603)-Filippov,A (2607) Ha Long City 2009}) 11. Qd2 Be6 12. Bb2 {White is slightly better.} Rad8 13. e4 Rd7 $146 ({Predecessor:} 13... Ng4 14. Rae1 Ne5 15. Ba1 Bg4 16. Na4 Qa6 17. f4 Nd7 18. h3 b5 19. cxb5 cxb5 20. Nc3 Be6 21. f5 Bxb3 22. axb3 Nf6 23. Nd5 Nxd5 24. exd5 {1-0 (24) Grant,J (2275)-Harrold,B Aberdeen 1998}) 14. h3 Rfd8 15. Qe2 Ne8 16. Kh2 Nc7 17. Rad1 Bf8 18. f4 {Hoping for f5.} f6 19. Rfe1 Bf7 20. Qg4 Qa5 21. f5 $36 {[%mdl 2048] Black is under pressure.} Kh8 22. a3 Qb6 23. b4 Bxc4 (23... a5 $14) 24. Ne2 (24. e5 $1 $16) 24... a5 $15 25. Nf4 axb4 $2 {[#]} (25... Qb5 $11) 26. Ng6+ $1 $16 {[%mdl 512]} Kg8 {[#]} ({And not} 26... hxg6 27. Qh4+ Kg8 28. fxg6 Qg1+ 29. Rxg1 Be7 30. Rd5 $1 {[%mdl 512]} Bxd5 31. exd5 cxd5 32. Qh7+ Kf8 33. Qh8#) 27. Bxf6 $2 {[%mdl 8192]} (27. e5 $1 $16 {[%cal Re5f6]} dxe5 28. Qxc4+ Nd5 29. Nxf8 Kxf8 30. Qb3) 27... gxf6 $19 ({Inferior is} 27... hxg6 28. Bxd8 gxf5 29. exf5 $16) 28. Ne5+ Rg7 29. Nxc4 Qa6 30. Qe2 d5 ({Better is} 30... bxa3 $19 {aiming for ...d5.} 31. Qa2 d5 32. exd5 cxd5) 31. e5 $2 {[%mdl 8192]} (31. exd5 $17 {is a better chance.} cxd5 32. axb4) 31... Re8 32. Qh5 Qxc4 ({Resist} 32... Rg5 33. Qf3) 33. exf6 Rf7 {Strongly threatening ...Rxe1.} 34. Qg5+ Kh8 {White must now prevent ...Rxe1.} 35. Qh5 Rxe1 $4 {[%mdl 8192]} (35... Rxf6 $19 36. Rxe8 Nxe8 37. Qxe8 bxa3) 36. Qxf7 $18 {[%cal Rf7f8]} Re8 {[#]} 37. Re1 $1 {[%cal Re1e8][%mdl 512]} Rc8 {[#]} (37... Rxe1 38. Qxf8#) 38. Re7 $1 {[%mdl 576] Deflection} Bxe7 39. Qg7# {Accuracy: White = 35%, Black = 43%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.23"]
[White "Otruba, Marek"]
[Black "Jasny, Stanislav"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2103"]
[BlackElo "2347"]
[Annotator "ChessBase"]
[PlyCount "76"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 2. e4 {[%emt 0:00:40]} Nf6 {[%emt 0:00:01]} 3. Nc3 {[%emt 0:00:03]} g6 {[%emt 0:00:13]} 4. Bf4 {[%emt 0:01:01]} a6 {[%emt 0:01:17]} 5. Qd2 {[%emt 0:08:06]} b5 {[%emt 0:00:33]} 6. a3 {[%emt 0:05:25]} Bb7 {[%emt 0:01:54]} 7. f3 {[%emt 0:02:09]} Nbd7 {[%emt 0:00:11]} 8. O-O-O {[%emt 0:03:10]} Nb6 {[%emt 0:04:58]} 9. Bd3 {[%emt 0:04:39]} Nfd7 {[%emt 0:01:27]} 10. h4 {[%emt 0:08:21]} h6 {[%emt 0:00:46]} 11. Nh3 {[%emt 0:03:10]} e6 {[%emt 0:07:58]} 12. Be3 {[%emt 0:10:12]} Qe7 {[%emt 0:01:31]} 13. Qe2 {[%emt 0:16:39]} Bg7 14. f4 {[%emt 0:06:47]} O-O-O {[%emt 0:20:28]} 15. Ng1 {[%emt 0:09:51]} c5 {[%emt 0:03:11]} 16. e5 {[%emt 0:06:53]} c4 {[%emt 0:11:17]} 17. exd6 {[%emt 0:04:52]} Qxd6 {[%emt 0:00:12]} 18. Be4 {[%emt 0:00:04]} Nd5 {[%emt 0:03:23]} 19. Bd2 {[%emt 0:03:43]} Nxc3 {[%emt 0:02:51]} 20. Bxb7+ {[%emt 0:00:44]} Kxb7 {[%emt 0:00:06]} 21. Bxc3 {[%emt 0:00:18]} Nb6 {[%emt 0:05:41]} 22. Qe4+ {[%emt 0:02:20]} Qd5 {[%emt 0:03:00]} 23. Qxd5+ {[%emt 0:00:45]} Nxd5 {[%emt 0:00:09]} 24. g3 {[%emt 0:00:34]} Ne3 {[%emt 0:00:36]} 25. Re1 {[%emt 0:01:12]} Nf5 {[%emt 0:00:30]} 26. Ne2 {[%emt 0:00:41]} Nxd4 {[%emt 0:01:54]} 27. Nxd4 {[%emt 0:00:06]} Bxd4 {[%emt 0:00:08]} 28. Bxd4 {[%emt 0:00:13]} Rxd4 {[%emt 0:00:05]} 29. h5 {[%emt 0:00:31]} Rg8 {[%emt 0:02:42]} 30. Re5 {[%emt 0:00:55]} gxh5 {[%emt 0:00:48]} 31. Rh3 {[%emt 0:00:50]} h4 {[%emt 0:01:03]} 32. c3 {[%emt 0:00:30]} Rd3 {[%emt 0:02:53]} 33. Rxh4 {[%emt 0:00:11]} Rgxg3 {[%emt 0:00:06]} 34. Rxh6 {[%emt 0:00:44]} Rg1+ {[%emt 0:00:14]} 35. Kc2 {[%emt 0:00:12]} Rg2+ {[%emt 0:02:04]} 36. Kb1 {[%emt 0:00:44]} Rd1+ {[%emt 0:00:11]} 37. Ka2 {[%emt 0:00:03]} Rgg1 {[%emt 0:00:10]} 38. b4 {[%emt 0:00:29]} Rd2# {[%emt 0:00:07]} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.24"]
[White "Rubes, Jan"]
[Black "Holy, Filip"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2345"]
[BlackElo "2096"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,43,14,37,22,43,33,49,33,35,31,20,18,18,27,10,13,27,30,56,44,72,75,108,92,90,57,52,52,204,186,200,200,192,194,184,179]} 1. Nf3 d5 2. d4 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 (5. c3 e6 6. Nbd2 cxd4 7. exd4 Nh5 8. Bg5 f6 9. Be3 Bd6 10. g3 O-O 11. Nh4 g6 12. Be2 Ng7 13. O-O e5 14. dxe5 fxe5 {½-½ (59) Aronian,L (2767)-Nakamura,H (2777) chess.com INT 2018}) 5... g6 6. dxc5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} Bg7 7. Bb5 $146 ({Predecessor:} 7. Ne5 Qa5 8. Nxc6 bxc6 9. Be5 Qxc5 10. Nb3 Qb6 11. Qd4 O-O 12. Bd3 Ne8 13. Bxg7 Nxg7 {½-½ (56) Hambleton,A (2501)-Brown,M (2506) chess.com INT 2018}) 7... O-O 8. O-O {White is slightly better.} Nh5 9. Bxc6 {[#] And now Ba4 would win.} Nxf4 10. exf4 {aiming for Ba4.} bxc6 11. c3 Qc7 12. Qa4 Bf5 13. Rfe1 Rab8 14. Nb3 Be4 15. Ne5 Rfc8 16. f3 Bf5 17. g4 Bc2 {With the idea ...f6.} 18. Re2 $36 {[%mdl 2048] White is more active.} f6 $2 (18... Bxe5 $14 19. fxe5 (19. Rxe5 e6 $11) 19... Bd3) 19. Qxc6 $1 $18 {White is clearly better.} ({Inferior is} 19. Rxc2 fxe5 20. Re1 e4 $11) 19... Qxc6 20. Nxc6 {[%mdl 64] [#] Discovered Attack} Rxc6 21. Rxc2 Bh6 22. Re1 {Accuracy: White = 82%, Black = 30%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.25"]
[White "Vanek, Tomas"]
[Black "Vokac, Marek"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2095"]
[BlackElo "2343"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,38,43,45,48,50,45,33,31,21,34,13,45,37,124,123,109,112,210,192,243,252,252,256,227,255,243,241,226,238,251,243,241,247,234,226,281,278,406,397,393,370,358,265,265,265,265,265,265,258,258,249,322,282,257,216,191,184,266,206,193,194,195,0,158,0,153,0]} 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bc4 a6 5. a4 b6 6. O-O {B06: Modern Defence} e6 7. Re1 Ne7 8. Ra3 $146 {White is slightly better.} ({Predecessor:} 8. Bf4 Bb7 9. Nbd2 Nd7 10. c3 O-O 11. h3 h6 12. Bh2 d5 13. exd5 Nxd5 {½-½ (41) Sprenger,J (2513)-Malakhov,V (2693) Sibenik 2016}) 8... h6 9. Nc3 {[%cal Bb1c3,Bc3e2,Be2f4][%mdl 32]} Nd7 10. Ne2 Bb7 11. Nf4 e5 (11... Nf6 $14) 12. dxe5 $16 dxe5 13. Rd3 $1 $36 {[%cal Rd3d7][%mdl 2048] Rxd7! is the strong threat. White has strong initiative.} exf4 (13... Bc6 $16) 14. e5 $1 $18 (14. Rxd7 $2 Qxd7 15. Bxf7+ Kd8 $19) 14... Bxf3 (14... Bd5 $142 15. Bxd5 Nxd5) 15. Qxf3 O-O {[#]} 16. e6 $1 Ne5 17. exf7+ Kh7 18. Rxe5 $1 Bxe5 19. Rxd8 Raxd8 20. Bxf4 Bxf4 21. Qxf4 Rd1+ 22. Bf1 c5 23. h4 Rd4 (23... h5 $142 24. Qf3 Rd4) 24. Qf6 Nd5 25. Qe6 {And now h5 would win.} Kg7 26. Qe5+ (26. Bxa6 Rxf7 27. Bd3 Rf6 $18) 26... Nf6 27. a5 (27. Bxa6 Rxa4 28. Bd3 Rxh4 $16) 27... bxa5 28. Qxc5 Rd1 29. g3 (29. Qxa5 $6 Rxf7 30. Qe5 (30. Qxa6 Ng4 $14) 30... h5 $18) 29... Rxf7 30. Qe5 (30. Qxa5 $6 Ng4 $18) 30... Rc1 31. c3 (31. Qxa5 Rxc2 32. Qe5 (32. Qxa6 Rxb2 33. Bd3 Rd7 $16) 32... Kh7 $16) 31... Rd1 32. Kg2 {Hoping for Bc4.} ({And not} 32. Qxa5 Ng4 $11) 32... Rd5 33. Qe6 Rfd7 (33... Rdd7 $142 34. Bc4 (34. Bxa6 Rfe7 $16) 34... Rfe7 35. Qxa6 Rd2) 34. Bxa6 ({Don't play} 34. Qxa6 $6 h5 $18) 34... R5d6 35. Qe2 Rd2 36. Qe6 R2d6 $1 {[%cal Rd6e6]} 37. Qe2 Rd2 {[#]} 38. Qe6 $2 {Accuracy: White = 77%, Black = 53%.} (38. Qe5 $1 $16) 1/2-1/2

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.26"]
[White "Vesselovsky, Serguei"]
[Black "Kolar, Stanislav"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2335"]
[BlackElo "2091"]
[Annotator "TA"]
[PlyCount "144"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,144,37,33,0,2,4,0,0,12,12,9,14,16,7,23,18,29,26,48,14,18,7,10,13,14,14,14,14,8,6,29,27,68,37,48,46,47,29,70,50,65,58,68,39,58,51,53,50,81,11,12,20,15,0,141,109,104,33,47,45,35,-845,0,0,0,0,6,0,0,0,0,0,0,0,29,29,27,0,18,19,25,0,18,23,29,32,28,28,198,198,198,198,198,186,477,187,187,191,198,194,192,192,198,198,198,198,3789,0,156,0,1706,1871,1570,198,208,189,226,197,3812,3591,1605,1339,1572,1412,11997,7184,29979,29980,29980,29981,29981,29981,29979,29973,29979,29973,29987]} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Ne2 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6} (6. c3 Bd6 7. Bd3 O-O 8. Qc2 Re8+ 9. Be3 h6 10. Ne2 Na6 11. O-O Nc7 12. c4 Bg4 13. h3 Bxe2 14. Bxe2 Ne6 15. Rad1 Qc7 16. Bg4 Rad8 17. Rfe1 Bf4 18. Bxf4 Nxf4 19. Rxe8+ Rxe8 {½-½ (58) Svidler,P (2756)-Carlsen,M (2839) Porto Carras 2018}) 6... Bd6 7. g3 O-O 8. Bg2 {The position is equal.} Re8 9. O-O Na6 10. Re1 $146 ({Predecessor:} 10. a3 Bg4 11. Be3 Nc7 12. c4 Ne6 13. f3 Bf5 14. Nc3 {0-1 (38) Moreira,C (1726)-Ethier,V (1635) LSS email 2009}) 10... Bf5 {Hoping for ...Nb4.} 11. c3 Qd7 12. Bf4 g5 13. Bxd6 Qxd6 14. Nc1 Nc7 15. Nb3 Rxe1+ 16. Qxe1 Re8 17. Qd2 b6 18. Re1 Rxe1+ 19. Qxe1 a5 20. Nd2 b5 21. Nb3 a4 22. Na5 Bd7 23. a3 Nd5 24. Nb7 Qf8 25. Nc5 Qd6 26. c4 bxc4 27. Nxa4 Nc7 28. Nc5 Bf5 29. Qc3 ({Better is} 29. Qe3 $16) 29... Nb5 $11 30. Qxc4 {Black must now prevent Nb3.} Nxd4 31. a4 Ne6 (31... Qe5 $11 {remains equal.}) 32. Nxe6 $16 Bxe6 33. Qxc6 (33. Qc2 $16) 33... Qd1+ $14 34. Bf1 Bd5 35. Qe8+ Kg7 {( -> ...Qf3)} 36. Qe2 $1 {[%cal Re2d1]} Qxa4 37. h3 Be6 38. Bg2 Qb4 39. Kh2 h5 40. Qc2 Bb3 41. Qc3 Qb8 42. Kg1 Qb6 43. Qe3 Qb5 44. Qd4 Qf5 45. Bf1 Qf3 46. Qd3 Qb7 47. Qb5 Qxb5 48. Bxb5 {[%mdl 4096] Endgame KB-KB} f5 $2 (48... h4 $1 $11 {and Black is okay.}) 49. h4 $1 $18 f4 50. gxf4 gxh4 51. Kg2 Kf6 $2 (51... Be6 {is a better defense.} 52. Bd3 Kf6) 52. Bd3 $2 (52. Bd7 Ke7 53. Bf5) 52... Be6 53. b4 Ke7 54. f5 Bd5+ 55. Kh3 f6 56. Kxh4 Bf3 57. Kg3 Bd5 $2 (57... Bc6 58. b5 Be8) 58. Kh4 $2 (58. Be2 $1 $18 {[%cal Re2f3] is the precise move to win.} Bf7 59. Kh4) 58... Bf3 $16 59. Kg3 $2 (59. Bb5 $16) 59... Bd5 $18 {[#]} 60. Be2 $1 Bf7 61. Kh4 Kd6 62. Bxh5 Bc4 63. Be8 {aiming for Kh5.} Bd3 $2 (63... Be2 64. Bh5 Bb5) 64. Kg4 Ke5 {[#]} 65. Bd7 $1 Kd6 66. Be6 Ke5 67. Kh5 Bb5 68. Kg6 {White mates.} Be8+ 69. Kg7 Bb5 70. Kf7 Bc6 71. Ke7 Bb5 72. Bd7 Kd5 {Accuracy: White = 60%, Black = 41%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.27"]
[White "Neumann, Filip"]
[Black "Blatny, Pavel"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2076"]
[BlackElo "2326"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,67,50,62,58,52,56,56,53,70,48,81,51,75,73,79,-15,-12,-21,-5,-17,-20,-16,31,-31,17,18,19,14,73,5,29,18,18,-47,0,0,0,0,8,7,16,0,0,-72,-50,-70,-67,-77,0,0,0,-18,-20,-22,-12,-8,93,91,29995,29996]} 1. e4 b6 2. d4 Bb7 3. Bd3 e6 4. Nf3 g6 5. O-O Bg7 6. c4 {B00: Queen's Fianchetto Defence, Nimzowitsch Defence} (6. Re1 d6 7. c3 Ne7 8. Nbd2 Nd7 9. Nf1 O-O 10. Ng3 c5 11. Be3 e5 12. Qd2 exd4 13. cxd4 {½-½ (83) Alekseev,E (2622)-Fedoseev,V (2731) Sochi 2017}) 6... Ne7 7. Nc3 d6 8. Be3 {White is slightly better.} Nd7 9. Rc1 h6 10. b4 a5 11. a3 g5 $146 ({Predecessor:} 11... O-O) 12. c5 (12. d5 $16) 12... axb4 $11 13. axb4 bxc5 14. bxc5 dxc5 15. dxc5 g4 16. Ne1 (16. Nd4 $14) 16... h5 17. Bb5 c6 18. Be2 Qc7 {[#]} (18... O-O $11) 19. Nd3 (19. Na4 $1 $16) 19... Ng6 20. f4 gxf3 $1 21. Bxf3 (21. gxf3 $11 Nde5 22. Kh1) 21... Nde5 22. Nxe5 Bxe5 23. h3 Rd8 24. Qe2 Qa5 25. Bxh5 Ba6 $1 {[%cal Ra6e2]} ({Avoid the trap} 25... Bxc3 $2 26. Bxg6 O-O 27. Bh5 $18) 26. Bxg6 (26. Qf3 $11 {keeps the balance.} Bxf1 27. Bxg6) 26... Bxe2 $17 27. Bxf7+ Kd7 28. Nxe2 Qa2 (28... Rhf8 $17 {Threatens to win with ...Qb5.} 29. Kh1 Kc7) 29. Nf4 Qa3 $1 {[%cal Ra3e3]} 30. Rcd1+ Kc8 31. Bxe6+ Kc7 32. Rde1 {[#]} Bc3 (32... Rd1 $1 $11 {[%mdl 512]}) 33. Rb1 $16 {Nd5+! would kill now.} Bd2 $2 {[%mdl 8192] [#]} (33... Bb2 $16 34. Rf3 Qa4) 34. Nd5+ $1 {[%mdl 576] Back Rank. Accuracy: White = 43%, Black = 25%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.28"]
[White "Kulhanek, Tomas"]
[Black "Valencik, Jozef"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2316"]
[BlackElo "2057"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,63,53,37,52,47,52,36,95,87,124,125,108,118,109,104,103,104,105,100,103,97,93,105,99,22,31,17,110,108,70,72,83,32,33,0,0,0,0,0,0,0,5385,0,5373,2550,29988,1975,29983,29984]} 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 Bg7 {C02: French: Advance Variation} (9... O-O-O 10. Na3 Rg8 11. Nc2 cxd4 12. cxd4 Be7 13. b4 Bxb4 14. Qxh6 Be7 15. Rab1 Qa5 16. Qxh7 Qxa2 17. Rfc1 {1-0 (43) Kadric,D (2554)-Ozen,D (2411) Belgrade 2018}) 10. Na3 a6 11. Nc2 Ne7 $146 ({Better is} 11... cxd4 $14 12. cxd4 O-O) ({Predecessor:} 11... O-O 12. b4 cxb4 13. cxb4 Ne7 14. a4 Ng6 15. Rfb1 Qd8 16. b5 a5 17. Ra3 {1-0 (29) Romero Echeverria,A (2064)-Colombo,C (2129) Montevideo 2009}) 12. Ne3 Bb5 13. Bxb5+ Qxb5 14. Ng4 Nf5 15. a4 Qb6 16. dxc5 Qxc5 17. Nd4 Nxd4 18. cxd4 Qe7 19. Rac1 h5 20. Ne3 (20. Nh6 $16) 20... O-O $11 21. Qe2 Qh4 (21... Qb4 $11 {keeps the balance.}) 22. f4 $16 Rac8 {Black wants to play ...Rxc1.} 23. g3 $36 {[%mdl 2048] Black is under strong pressure.} Qh3 24. Rxc8 (24. b4 $16) 24... Rxc8 $14 25. f5 Bh6 26. Qf3 Bxe3+ 27. Qxe3 exf5 $11 {KQR-KQR} 28. Qg5+ Kh8 $2 {[%mdl 8192]} (28... Kf8 $11) 29. Qf6+ $18 {[%mdl 64] Double Attack} Kg8 30. e6 Rf8 31. Rxf5 (31. Re1 $142 fxe6 32. Qxe6+ {[%mdl 64] Double Attack} Kg7 33. Qe7+ {[%mdl 64] Double Attack} Kg8 34. Qg5+ Kh8 {[#]} 35. Qh6 $1 {[%mdl 512]} Rc8 36. Re7 $1 {[%mdl 576] Double Attack}) 31... h6 32. e7 {Accuracy: White = 59%, Black = 49%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.29"]
[White "Didi, Jan"]
[Black "Svanda, Ondrej"]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "2025"]
[BlackElo "2309"]
[Annotator "TA"]
[PlyCount "131"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,131,35,8,19,22,30,43,116,125,125,125,138,145,303,308,293,262,276,234,256,219,222,217,493,29,22,21,104,131,156,138,127,139,228,235,639,647,665,-277,-281,-262,-255,-266,-104,-81,-95,-89,-98,-100,-79,-89,-91,-207,-181,-181,-181,-181,-181,-189,-184,-195,-223,-288,-277,-347,-347,-347,-345,-323,-255,-364,-350,-358,-266,-266,-266,-369,-327,-349,-229,-242,0,0,0,0,0,0,0,0,0,-197,-247,-29966,-29968,-29972,-29972,-29969,-4726,-29974,-29977,-29974,-5609,-29976,-29977,-29977,-29977,-29975,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 a6 7. a4 Be7 8. Be2 O-O 9. O-O Nc6 10. f4 Qc7 11. Kh1 Bd7 12. Qe1 Rab8 {B85: Sicilian Scheveningen: 6 Be2 a6, lines with early Be3} (12... Nxd4 13. Bxd4 Bc6 14. Qg3 Ne8 15. Bd3 Bf6 16. e5 dxe5 17. fxe5 Rd8 18. Bb6 Qxb6 19. exf6 g6 20. Be4 Nd6 21. Qh4 Bxe4 22. Nxe4 Nxe4 23. Qxe4 Qxb2 {0-1 (49) Azarov,S (2575)-Iturrizaga Bonelli,E (2637) chess.com INT 2019}) 13. Qg3 Nxd4 14. Bxd4 g6 (14... Bc6 $14) 15. f5 e5 16. Be3 Bc6 17. Bh6 $146 ({Predecessor:} 17. Qh4 d5 18. exd5 Nxd5 19. Nxd5 Bxh4 20. Nxc7 {1-0 (41) Diesen,M (2360)-Filipowicz,A (2355) Polanica Zdroj 1977}) 17... Rfe8 $2 (17... b5 $16 18. Bxf8 Rxf8 19. axb5 axb5) 18. Bc4 $1 $18 {aiming for fxg6.} (18. fxg6 fxg6 19. Qh4 Qd8 $16) 18... d5 19. exd5 Bd7 20. fxg6 hxg6 {[#]} 21. d6 $1 $40 {[%mdl 640] Threatening mate with Qxg6+. White is out for blood.} Qxc4 (21... Qxd6 22. Qxg6+) 22. dxe7 Qe6 $2 (22... Nh5 23. Qxe5 Qe6) 23. Qh4 $2 (23. Rxf6 $18 Qxf6 24. Nd5) 23... Nh7 $11 24. Bf8 Bc6 (24... f5 $11) 25. Rae1 $1 $16 Nxf8 26. exf8=Q+ ({Much less strong is} 26. exf8=B Rxf8 27. Rf6 Qc8 $14) 26... Rxf8 27. Rf6 Qd7 (27... Qc8 $16 {was necessary.}) 28. Rd1 $18 ({Weaker is} 28. Rxe5 Qd2 $11) 28... Qc7 $2 (28... Qc8 29. Rdd6 Kg7) 29. Rd3 Kg7 30. Rdd6 $4 {[%mdl 8192]} (30. Rfd6 $18 {White wants to mate with Qf6+.} Qc8 31. Rh3 Qxh3 32. Qxh3) 30... Rbd8 $19 31. Qb4 Qe7 {Strongly threatening ...Rxd6.} 32. h3 {intending Rxg6+.} Qxf6 $2 ({But not} 32... Rxd6 33. Rxd6 Qg5 34. Nd5 $17) (32... Rd7 $19 {is more deadly. And now ...Rfd8 would win.} 33. Kg1 Rfd8) 33. Rxf6 $17 Kxf6 34. Ne4+ Bxe4 35. Qxe4 {[%mdl 4096] Endgame KQ-KRR} Rd7 36. c3 Re8 37. Qg4 (37. Kg1 $17 {was called for.}) 37... Ree7 38. Qe4 Kg7 $1 {White must now prevent ...f5.} 39. g4 Rd1+ 40. Kg2 Rd2+ {[%mdl 64] Double Attack} 41. Kg3 Rxb2 42. g5 Rb6 43. h4 Rc6 44. c4 Rd6 45. c5 Rc6 46. h5 (46. Qd5 $142) 46... gxh5 $19 47. Qe3 f5 {( -> ...f4+)} 48. gxf6+ Rxf6 49. Kh4 Rf5 50. Qg3+ Kf7 51. Qb3+ Ke8 $2 (51... Kg6 $19 {...Ref7 is the strong threat.} 52. Qg8+ Kh6 53. Qh8+ Kg6 54. Qg8+ Kh6) 52. Qg8+ $11 Rf8 53. Qg6+ Rff7 54. c6 bxc6 55. Qxc6+ Kf8 {Threatens to win with ...e4.} 56. Qc8+ $2 (56. Qh6+ $11 Kg8 57. Qg6+ Rg7 58. Qxa6) 56... Kg7 $19 57. Kxh5 $2 (57. Qc3 $19) 57... e4 $1 {[%cal Re4e3]} 58. Qg4+ Kh8 59. Qc8+ Kh7 60. Qxa6 e3 61. Qd3+ Kh8 (61... Kg8 $142 62. Qe2 Rf4 63. Qb5 Ref7 64. Qb1 e2 65. Kg5 {[#]} R7f5+ $1 {[%mdl 512]} 66. Kh6 Rf6+ 67. Kh5 Kg7 68. Qb7+ Rf7 69. Qg2+ Kh7 70. Qg6+ Kh8 71. Qe6 R7f5+ 72. Kg6 Rf6+ $1 {[%mdl 576] Promotion} 73. Qxf6+ Rxf6+ 74. Kxf6 e1=Q 75. Kg5 Qb4 76. Kf5 Qxa4 77. Ke5 Qc4 78. Kf6 Qd4+ 79. Kf7 Qe4 80. Kf6 Kh7 81. Kg5 Kg7 82. Kh5 Kf6 83. Kh6 Qh4#) 62. Qd4+ Kg8 63. Qd8+ Kg7 64. Qd4+ Kh7 $2 (64... Rf6 {mates} 65. Kg5 Ree6 66. Qa7+ Kg8 67. Qb8+ Kf7 68. Qc7+ Re7 69. Qc4+ Rfe6 70. Kh5 e2 71. Qf4+ Kg7 72. Qg3+ Kh7 73. Qd3+ Re4 74. Kg5 Kg7 75. Qd6 R7e5+ 76. Qxe5+ Rxe5+ 77. Kh4 e1=Q+ 78. Kg4 Re3 79. Kg5 Qg3+ 80. Kh5 Re5#) 65. Qd3+ $11 Kh8 66. Qd8+ {Accuracy: White = 52%, Black = 41%.} 1/2-1/2

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.30"]
[White "Serrano Salvador, Eduardo"]
[Black "Kana, Pavel"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2305"]
[BlackElo "2013"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,61,23,28,0,0,0,0,0,0,0,18,7,18,21,45,-3,18,10,22,-77,0,0,60,74,64,-36,0,0,0,0,0,-70,0,0,0,0,0,18,135,113,117,148,335,345,602,602,600,594,586,582,918,905,5343,5343]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. Qc2 g6 6. e4 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} (6. Bg5 Be6 7. e4 dxe4 8. Nxe4 Nbd7 9. Nxf6+ exf6 10. Bd2 Bg7 11. Be2 O-O 12. O-O Bf5 13. Qb3 {1-0 (40) Gelfand,B (2695)-Artemiev,V (2704) Poikovsky 2018}) 6... dxe4 7. Nxe4 Nxe4 8. Qxe4 {The position is equal.} Bg7 9. Be2 O-O 10. O-O Bf5 11. Qh4 Nd7 12. Bh6 Re8 $146 (12... e5 $5 {[%cal Rd8h4]} 13. Bxg7 Kxg7 $11) ({Predecessor:} 12... e6 13. Bg5 {1-0 (42) Smirnov,A (2405)-Petrov,D (2239) Viljandi 2018}) 13. Rad1 e5 14. Ng5 {[#]} (14. Bxg7 $11 Kxg7 15. dxe5 (15. Ng5 h6 $17)) 14... Qf6 ({Better is} 14... f6 $1 $17 15. Bxg7 fxg5) 15. d5 $11 {g4 is the strong threat.} cxd5 ({Black should play} 15... Nf8 $1 $11) 16. g4 $1 $40 {[%cal Rg4f5][%mdl 128] White has strong attack.} Bc2 {Threatens to win with ...Bxh6.} 17. Rxd5 (17. Rd2 $14 d4 18. Rxc2) 17... Ba4 18. Bxg7 Qxg7 19. Ne4 Bc6 20. Rfd1 (20. g5 $11 Bxd5 21. cxd5) 20... g5 (20... Bxd5 $15 21. Rxd5 {[#]} g5 $1 {[%mdl 512]} 22. Nxg5 Nf6) 21. Qh3 $11 Bxd5 22. cxd5 Nf6 23. Nd6 Red8 (23... Qf8 $11 {keeps the balance.} 24. Nxe8 Nxe8) 24. Nf5 $16 Qf8 25. d6 Rd7 $2 (25... Kh8 $16 {is a better defense.}) 26. Qe3 $1 $18 {[%csl LRe5,LRg5][%mdl 64] Double Attack} h6 $2 (26... Ne8 27. Qxe5 (27. Qxg5+ Kh8 $14) 27... Ng7) 27. Qxe5 {White is clearly winning.} Re8 28. Qxf6 Re6 29. Ne7+ Rdxe7 30. dxe7 Rxf6 {[#]} 31. Rd8 $1 {[%mdl 576] Pin. Accuracy: White = 46%, Black = 35%.} 1-0

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.31"]
[White "Koubova, Anna Marie"]
[Black "Sramek, Vojtech"]
[Result "0-1"]
[ECO "A52"]
[WhiteElo "2005"]
[BlackElo "2304"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,60,91,89,54,50,54,85,34,47,22,17,0,33,11,46,6,5,0,8,2,8,0,6,10,12,8,8,6,6,6,6,6,4,6,6,7,9,0,80,88,84,68,83,29,35,12,22,-95,-117,-104,-97]} 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 g5 5. Bg3 Bg7 6. Nf3 Nc6 {[%cal Rg4e5]} 7. e3 {A52: Budapest Gambit} (7. h4 Ngxe5 8. hxg5 Nxf3+ 9. gxf3 Bxb2 10. Nd2 Qxg5 11. Bxc7 d6 12. Ne4 Bxa1 13. Nxd6+ Kd7 14. Ne4+ Kxc7 15. Qd6+ {½-½ (34) Shimanov,A (2633)-Durarbayli,V (2608) Merida 2016}) 7... Ngxe5 8. Nxe5 Nxe5 9. Be2 ({White should play} 9. h4 $16) 9... d6 10. O-O Be6 11. Nd2 Qd7 12. Qc2 $146 ({Predecessor:} 12. Rc1 O-O-O 13. Ne4 Qe7 14. c5 Kb8 15. cxd6 cxd6 {0-1 (74) Baladjaev,G (2177)-Kanep,M (2446) Nakhchivan 2003}) 12... f5 13. c5 O-O 14. f4 gxf4 15. Bxf4 Ng6 16. Nf3 Nxf4 17. exf4 Qc6 18. Rac1 Qxc5+ 19. Qxc5 dxc5 20. Rxc5 c6 21. b3 Rad8 22. Bc4 Bxc4 23. Rxc4 Rfe8 $36 {[%mdl 2048] Black is more active.} 24. Rc5 Rd5 (24... Re2 $11 {keeps the balance.}) 25. Rxd5 $16 cxd5 {KRB-KRN} 26. Rd1 d4 27. Rd2 (27. Nh4 $16) 27... Re4 28. g3 {And now Nh4 would win.} Bf6 29. Ne5 (29. Kf2 $11 {remains equal.}) 29... Bxe5 $17 30. fxe5 Kf7 {Accuracy: White = 24%, Black = 71%.} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.32"]
[White "Worek, Joanna"]
[Black "Malinovsky, Petr"]
[Result "1/2-1/2"]
[ECO "B36"]
[WhiteElo "2299"]
[BlackElo "2003"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,79,25,18,41,31,37,42,52,45,58,61,58,53,100,76,77,81,202,180,191,90,170,177,174,145,202,212,209,203,194,210,219,226,227,134,136,8,12,-70,-81,-82,-8,0,0,-8,-11,-12,-8,-8,-8,-10,-8,-8,-8,-27,-27,-27,-27,-41]} 1. e4 c5 2. Nf3 g6 ({Predecessor:} 2... Nc6 3. d4 cxd4 4. Nxd4 {1-0 (32) Chojnacki,K (2398)-Dobrowolski,A (2356) Legnica 2007}) 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Be3 O-O 10. Qd2 Be6 11. O-O Qa5 12. Rfc1 Rfc8 {B36: Sicilian: Maroczy Bind: Gurgenidze System} 13. b3 a6 14. Rab1 b5 {White is slightly better.} 15. b4 Qd8 $1 16. cxb5 axb5 17. Bxb5 Ra3 18. Nd5 Nxe4 $146 (18... Rca8 19. Nxf6+ Bxf6 20. Bc4 Bxc4 21. Rxc4 Rxa2 {½-½ (42) Safarli,E (2644)-Guseinov,G (2623) Nakhchivan 2013}) 19. Rxc8 Bxc8 (19... Qxc8 $16 20. Nxe7+ {[%mdl 64] Double Attack} Kf8 21. Nxc8 Nxd2 22. Bxd2 Rxa2) 20. Qc1 $18 Rc3 {[#]} 21. Qe1 ({But not} 21. Nxc3 $6 Nxc3 22. a4 d5 $16) (21. Bb6 $1 $18 {[%cal Rb6d8] is more deadly.} Qf8 22. Nxc3 Nxc3 23. a4) 21... Be6 (21... Bb7 $16 22. Nxc3 Nxc3) 22. Nxc3 Nxc3 23. a4 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32]} Nxb1 (23... d5 $16 {is a better defense.}) 24. Qxb1 d5 25. Bc5 d4 26. a5 Bd5 27. a6 e5 28. Be2 (28. Bf1 $18) 28... e4 $16 29. b5 (29. a7 $16) 29... d3 $11 30. Bd1 ({Better is} 30. Bf1 $1 $11 Qa5 31. a7) 30... Qa5 $1 $15 {[%cal Ra5e1]} 31. Qb4 Qxb4 ({Black should try} 31... Qa1 $17 32. Qa4 Qc3) 32. Bxb4 $17 {[%mdl 4096] Endgame Black must now prevent b6. KBB-KBB} Bd4 33. Ba5 $132 {[%mdl 2048] Threatens to win with b6. White has counterplay} Bc4 34. Ba4 e3 35. fxe3 Bxe3+ 36. Kh1 d2 37. a7 Bxa7 {...Bxb5! is the strong threat.} 38. b6 {[#]} Bxb6 $1 {[%mdl 512]} 39. Bxb6 {And now Ba5 would win.} Be2 40. g3 {Accuracy: White = 46%, Black = 60%.} 1/2-1/2

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.33"]
[White "Vorisek, Jakub"]
[Black "Riha, Vojtech"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1991"]
[BlackElo "2288"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,80,14,0,0,-12,-4,-3,0,-11,-2,-46,-39,-132,-116,-370,-37,-65,-56,-57,-58,-46,-70,-59,-35,-64,19,-171,-141,-214,-187,-182,-175,-161,-155,-266,-270,-637,-316,-782,-764,-762,-772,-762,-763,-738,-722,-1232,-1356,-1360,-1315,-1289,-1269,-29987,-29988,-29990,-29991,-29990,-29991,-29992,-29993,-29993,-29994]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Ne7 9. c4 Ng6 10. Bd3 Be7 11. O-O a6 {B33: Sicilian: Pelikan and Sveshnikov Variations} (11... O-O 12. Bxg6 hxg6 13. Be3 f5 14. f3 b6 15. f4 a6 16. Nc3 exf4 17. Bxf4 Bf6 18. Be3 Bd7 19. Bd4 {0-1 (34) Brooks,M (2463)-Nakamura,H (2701) Saint Louis 2009}) 12. Nc3 f5 13. f3 O-O {The position is equal.} 14. Kh1 Bd7 15. c5 $146 ({Predecessor:} 15. g3 Bg5 16. a4 e4 17. Bxg5 Qxg5 18. f4 {½-½ (43) Borwell,A (2279)-Mishin,A (2328) ICCF email 2015}) 15... Kh8 16. Qb3 (16. cxd6 $15 Bxd6 17. Be3) 16... dxc5 $17 17. Qxb7 $2 {[%mdl 8192] [#]} (17. a4 $17 {was necessary.}) 17... Bd6 $2 ({Black should try} 17... Rb8 $1 $19 {[%cal Rb8b7]} 18. Qa7 (18. Qxa6 $2 Rf6 $19) 18... Rf6) 18. Be3 (18. Bxa6 $2 Rb8 $19) 18... e4 $1 {[%cal Re4d3]} 19. fxe4 Qh4 {[%csl Gd6][%cal Rh4h2]} 20. Bg1 Ne5 {[%mdl 1024] ...Rfb8 is the strong threat. Black has compensation.} 21. Qb6 $1 {[%cal Rb6d6]} Rf6 $1 22. Be2 Raf8 ({Black should play} 22... Nf7 $15 23. h3 fxe4 24. Rxf6 (24. Bxc5 $2 Bxh3 25. Qxd6 Nxd6 $19) 24... gxf6) 23. Qb3 $2 ({Resist} 23. Qxa6 $6 Nf7 $16) (23. Qa7 $11 {and White is okay.}) 23... Rh6 {And now ...Qg3 would win.} 24. Nd1 (24. exf5 $17 Nc6 25. h3 (25. dxc6 Qg3 26. Rf4 Bxf4 27. Qg8+ Rxg8 28. h3 Rxh3+ {[%mdl 64] Demolition} 29. gxh3 Qxh3+ {[%mdl 64] Double Attack} 30. Bh2 Qxh2#)) 24... c4 $36 {[%mdl 2048] Black is on the roll.} 25. Qe3 f4 26. Qf2 Qe7 27. b3 {[#]} (27. Qd4 $17) 27... f3 $1 $19 {[%mdl 512] Hoping for ...Ng4.} 28. Bxf3 $2 (28. Ne3 fxe2 29. Qxe2) 28... Nd3 (28... Ng4 $142 29. Bxg4 Rxf2 30. Nxf2 Qe5) 29. Qe3 $2 (29. Qd4 Be5 {[%mdl 64] Skewer} 30. Qa7) 29... Qe5 {[%cal Rh6h2]} 30. Qxh6 gxh6 31. Ne3 {[#]} cxb3 {Played: Nd3-f2} 0-1

[Event "CZE-ch Open 2019"]
[Site "Ostrava"]
[Date "2019.04.27"]
[Round "1.34"]
[White "Michenka, Jozef"]
[Black "Pavlicek, Lukas"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "2287"]
[BlackElo "1963"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2019.04.27"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,75,0,45,0,45,45,50,56,60,58,108,17,65,61,135,116,127,130,124,105,142,138,189,109,115,121,135,110,123,122,227,218,210,130,127,123,203,221,216,177,157,126,382,374,1271,1262,1137,1178,1745,1673,29990,29991,29991,29983,29990,29991,29990,1335,1243,1164]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 O-O 6. Nge2 c5 7. d5 e6 8. O-O exd5 9. exd5 Re8 10. h3 {E70: King's Indian: Miscellaneous lines with 4 e4, including 5 Nge2 and 5 Bd3 0-0 6 Nge2} Nbd7 (10... Nh5 11. Nf4 Nf6 12. Bc2 a6 13. Re1 b5 14. cxb5 axb5 15. Nxb5 {1-0 (45) Sjugirov,S (2663)-Pantsulaia,L (2597) chess.com INT 2019}) 11. Ng3 Ne5 12. Be2 {White is slightly better.} a6 13. a4 Rb8 $146 ({Predecessor:} 13... b6 14. Bg5 Qc7 15. Qc2 Ned7 16. Bf3 Bb7 17. Rab1 h6 {0-1 (46) Wan Abd Rahim,W (1633)-Azman Hisham,N (1961) Kuala Lumpur 2016}) 14. Be3 ({White should play} 14. f4 $16 Ned7 15. f5) 14... Qb6 15. Bd2 h5 (15... Ned7 $14) 16. f4 $1 $16 {[%cal Rf4e5]} Ned7 17. Bd3 $1 h4 18. Nge2 $1 Nf8 19. Be1 Bf5 (19... N6h7 $16 {might work better.} 20. Bxh4 f5) 20. Bxh4 ({White should try} 20. Bxf5 $18 gxf5 21. Bxh4) 20... Ne4 21. Be1 Nxc3 22. Bxc3 Bxc3 23. bxc3 {Strongly threatening Bxf5.} Re3 (23... Bxd3 $16 24. Qxd3 Qd8) 24. Bxf5 $18 gxf5 25. Qc2 Rbe8 26. Rf2 $1 R8e4 {[#]} (26... Qd8 $16) 27. Kh2 $1 Rxc4 28. Qxf5 {Hoping for Qg5+.} Qd8 29. Rb1 Qe7 $2 {[%mdl 8192]} (29... Qh4 $16 {was worth a try.}) 30. Ng3 Rcxc3 $2 (30... Rxg3 31. Kxg3 Rxa4 32. Qg4+ Ng6) 31. Qg4+ Ng6 32. Nf5 $1 {[%csl LRe3,LRe7][%mdl 64] Double Attack} Qe4 33. Rxb7 {Threatening mate with Nh6+.} Rb3 34. Nh6+ Kh8 35. Nxf7+ Kg8 36. Nh6+ Kh8 37. Qc8+ (37. Ra7 $142 c4 {[#]} 38. Nf5 $1 {[%mdl 512]} Qxf5 39. Qxf5 Ne7 40. Qf6+ Kh7 41. f5 Kg8 42. Ra8+ Rb8 43. Rxb8+ Nc8 44. Rxc8+ {[%mdl 64] Double Attack} Re8 45. Rxe8+ Kh7 46. Qh8#) 37... Qe8 38. Qxe8+ {Accuracy: White = 68%, Black = 27%.} 1-0

