[Event "IM KonstantinKazakov simul"] [Site "https://lichess.org/rXdaUzjc"] [Date "2022.10.30"] [White "rAfael_santI1483"] [Black "KonstantinKazakov"] [Result "1-0"] [UTCDate "2022.10.30"] [UTCTime "08:29:52"] [WhiteElo "1994"] [BlackElo "2537"] [BlackTitle "IM"] [Variant "From Position"] [TimeControl "900+10"] [ECO "?"] [Opening "?"] [Termination "Normal"] [FEN "r3k1n1/pppppppp/8/8/8/8/PPPPPPPP/R3K2R w KQq - 0 1"] [SetUp "1"] [Annotator "lichess.org"] 1. O-O-O Nf6 2. f3 e6 3. e4 Ke7 4. d3 d6 5. g4 Nd7 6. d4 Rh8 7. h4 c6 8. c4 h5 9. g5 e5 10. d5 c5 11. Rhf1 Nf8 12. a3 Ng6 13. b4?! { (2.58 → 1.93) Inaccuracy. Rh1 was best. } (13. Rh1 Nf4 14. Kd2 Rc8 15. Rb1 b6 16. Ra1 Ng6 17. b4 Nf4 18. Rac1 Ng6 19. Rb1 Nf4) 13... Rc8 14. Kb2 Nf4?! { (1.74 → 2.67) Inaccuracy. Nxh4 was best. } (14... Nxh4 15. Kc3 cxb4+ 16. axb4 a6 17. Kb3 Ng6 18. Rc1 Nf4 19. c5 Kd7 20. cxd6 Rxc1 21. Rxc1) 15. bxc5 Rxc5 16. Kc3 b6 17. Rb1 f6?! { (2.12 → 3.21) Inaccuracy. Ra5 was best. } (17... Ra5) 18. Rb5 Rc7 19. a4?! { (3.17 → 2.29) Inaccuracy. gxf6+ was best. } (19. gxf6+ Kxf6 20. c5 Rxc5+ 21. Rxc5 bxc5 22. Kc4 Ng6 23. Rh1 Ne7 24. Kb5 g5 25. Rh2 gxh4) 19... Ne2+?! { (2.29 → 3.00) Inaccuracy. fxg5 was best. } (19... fxg5 20. hxg5) 20. Kd3 Nd4?? { (2.51 → 5.73) Blunder. Nf4+ was best. } (20... Nf4+ 21. Kc3 fxg5 22. hxg5 h4 23. a5 Ne2+ 24. Kd2 Ng3 25. Rg1 Rxc4 26. axb6 axb6 27. Rxb6) 21. Rb2?! { (5.73 → 4.19) Inaccuracy. gxf6+ was best. } (21. gxf6+) 21... Rc5? { (4.19 → 7.26) Mistake. fxg5 was best. } (21... fxg5) 22. gxf6+ Kxf6 23. f4 Rc7 24. fxe5+ Kxe5?! { (13.44 → Mate in 4) Checkmate is now unavoidable. Kg6 was best. } (24... Kg6 25. exd6) 25. Rg2 Nb3 26. Rg5# { White wins by checkmate. } 1-0