[Event "Prague Festival-Challengers 2022"] [White "Stocek,Jiri"] [Black "Krzyzanowski,Marcin"] [Site "Prague"] [Round "4.5"] [Annotator "TA"] [Result "0-1"] [Date "2022.06.11"] [WhiteElo "2533"] [BlackElo "2535"] [PlyCount "80"] [TimeControl "60"] {[%evp 14,80,33,38,54,45,55,48,52,39,37,29,43,0,2,0,0,0,0,0,0,0,0,-125,-107,-213,-208,-205,-207,-236,-232,-223,-234,-206,-239,-251,-253,-409,-416,-408,-412,-447,-427,-466,-427,-542,-525,-872,-364,-348,-304,-426,-363,-408,-408,-405,-395,-565,-550,-965,-877,-939,-912,-1114,-968,-752,-625,-622,-575]} 1. d4 {[%emt 0:0:33]} Nf6 {[%emt 0:0:7]} 2. c4 {[%emt 0:0:52]} e6 {[%emt 0:0:13] } 3. Nf3 {[%emt 0:0:56]} c5 {[%emt 0:0:34]} 4. d5 {[%emt 0:1:20]} b5 {[%emt 0:1:16] } 5. Bg5 {[%emt 0:3:21]} exd5 {[%emt 0:0:17]} 6. cxd5 {[%emt 0:0:0]} h6 {[%emt 0:0:33]} 7. Bxf6 {[%emt 0:4:36]} Qxf6 {[%emt 0:0:5]} 8. Qc2 {[%emt 0:20:12]} Na6 {[%emt 0:8:36] E10: Blumenfeld Gambit.} 9. Nc3 {[%emt 0:2:59] } Rb8 {[%emt 0:7:23]} 10. e4 {[%emt 0:2:16]} c4 {[%emt 0:13:18] White is slightly better.} 11. Be2 {[%emt 0:9:14]} Bd6 {[%emt 0:13:22]} 12. O-O {[%emt 0:12:40]} O-O {[%emt 0:0:50] [#]} 13. Rfe1 $146 {[%emt 0:0:42]} ({ Predecessor:} 13. a4 Nb4 14. Qd2 a6 15. axb5 axb5 16. Ra5 Re8 17. Rfa1 Bf4 18. Qd1 Ba6 19. g3 Bc7 20. Rxa6 Nxa6 21. d6 Qxd6 22. Qxd6 Bxd6 23. Rxa6 Bf8 24. Nd2 {½-½ (24) Blagojevic,D (2499)-Llaneza Vega,M (2470) Amantea 2010} )Re8 {[%emt 0:8:44]} 14. a4 {[%emt 0:7:24]} Nb4 $36 {[%emt 0:4:28] Black has some pressure.} 15. Qd2 {[%emt 0:1:0]} Bf4 {[%emt 0:2:10]} 16. Qd1 {[%emt 0:3:4]} a6 {[%emt 0:0:53]} 17. axb5 {[%emt 0:10:23]} axb5 {[%emt 0:0:0]} 18. e5 {[%emt 0:0:36]} (18. Bf1 $11 {keeps the balance.} )Bxe5 $17 {[%emt 0:4:8] Black is more active. White is on the road to losing.} 19. Ne4 {[%emt 0:4:5] [#]} (19. Bf1 $17 )Bxh2+ $1 $19 {[%emt 0:5:55]} 20. Nxh2 {[%emt 0:0:24]} Rxe4 {[%emt 0:0:4]} 21. Bf3 {[%emt 0:1:45]} Rxe1+ {[%emt 0:1:16]} 22. Qxe1 {[%emt 0:0:18] aiming for Qe8+.} Qd6 {[%emt 0:0:0]} (22... Qxb2 $2 23. Qe8+ Kh7 24. Be4+ g6 25. Qxf7+ Qg7 26. Bxg6+ Kh8 27. Qe8+ Qg8 28. Qe5+ Qg7 29. Qxb8 $18 )23. Qe8+ {[%emt 0:5:53]} Qf8 {[%emt 0:0:0]} 24. Qe5 {[%emt 0:3:30]} d6 {[%emt 0:0:57]} 25. Qg3 {[%emt 0:0:40]} (25. Qc3 {was worth a try.} Nd3 26. Be4 )Qe7 {[%emt 0:2:13]} 26. Be4 {[%emt 0:1:9] } f5 {[%emt 0:1:6]} ({Wrong is} 26... Qxe4 $2 27. Qxd6 Rb7 28. Qxb4 $19 )27. Bb1 {[%emt 0:0:7]} Nxd5 {[%emt 0:5:5]} 28. Nf3 {[%emt 0:0:0]} Qf6 {[%emt 0:2:22] Prevents Nd4.} 29. Ra7 {[%emt 0:0:27]} Rb7 {[%emt 0:0:0]} 30. Ra6 {[%emt 0:0:53]} Rd7 {[%emt 0:2:59]} (30... Qxb2 $142 31. Bxf5 Bxf5 32. Qxd6 Qc1+ 33. Kh2 Nf6 )31. Ra8 {[%emt 0:0:16]} Rd8 {[%emt 0:0:31]} 32. Rb8 {[%emt 0:0:30]} (32. Qh4 {was forced.} Re8 33. Qd4 Qxd4 34. Nxd4 )b4 {[%emt 0:2:23]} ({Worse is} 32... Qxb2 33. Bxf5 Qa1+ 34. Kh2 $17 )33. Qh4 {[%emt 0:1:17]} Qxh4 {[%emt 0:4:6]} 34. Nxh4 {[%emt 0:0:4]} Rf8 {[%emt 0:2:19] } 35. Ng6 {[%emt 0:0:29]} (35. Rb5 {was necessary.} Be6 36. Kh2 )Re8 {[%emt 0:1:14] Black is clearly winning.} 36. Bxf5 {[%emt 0:1:34] [#]} Bxf5 {[%emt 0:3:10]} 37. Rxe8+ {[%emt 0:0:5]} Kf7 {[%emt 0:0:3]} 38. Rd8 {[%emt 0:0:5]} Bxg6 {[%emt 0:0:15]} 39. Rxd6 {[%emt 0:0:3] [#]} b3 $1 {[%emt 0:2:25]} 40. Rxd5 {[%emt 0:0:0] Black must now prevent Rd7+.} c3 $1 {[%emt 0:0:0] Weighted Error Value: White=0.72/Black=0.26 (precise)} 0-1