Event: Round 3: Koyama Nobuyuki - Ogasa Seiichi
Date: 2023-07-29
White: Koyama Nobuyuki
Black: Ogasa Seiichi
Result: 1-0
ECO: B40
Opening: Sicilian Defense: French Variation, Normal
Variant: Standard

1. e4 { [%eval 0.36] } 1... c5 { [%eval 0.32] } 2. Nf3 { [%eval 0.0] } 2... e6 { [%eval 0.34] } 3. d4 { [%eval 0.42] } 3... cxd4 { [%eval 0.37] } 4. Nxd4 { [%eval 0.4] } 4... Nf6 { [%eval 0.4] } 5. Nc3 { [%eval 0.33] } 5... a6? { [%eval 1.75] } { Mistake. Nc6 was best. } 6. Be3?? { [%eval 0.0] } { Blunder. e5 was best. } 6... Qc7 { [%eval 0.0] } 7. Be2 { [%eval -0.3] } 7... Be7?! { [%eval 0.3] } { Inaccuracy. Bb4 was best. } 8. Qd2 { [%eval 0.06] } 8... b5 { [%eval 0.19] } 9. a3?! { [%eval -0.43] } { Inaccuracy. Bf3 was best. } 9... Bb7 { [%eval -0.52] } 10. f3 { [%eval -0.39] } 10... O-O { [%eval -0.55] } 11. g4 { [%eval -0.73] } 11... d6?? { [%eval 0.96] } { Blunder. Nc6 was best. } 12. h4?! { [%eval 0.36] } { Inaccuracy. g5 was best. } 12... Nc6 { [%eval 0.38] } 13. h5?! { [%eval -0.31] } { Inaccuracy. O-O-O was best. } 13... Rac8? { [%eval 1.04] } { Mistake. Nxd4 was best. } 14. g5 { [%eval 1.13] } 14... Nxd4?! { [%eval 2.25] } { Inaccuracy. Nd7 was best. } 15. Bxd4?! { [%eval 1.1] } { Inaccuracy. gxf6 was best. } 15... Nd7 { [%eval 1.01] } 16. g6?! { [%eval -0.06] } { Inaccuracy. O-O-O was best. } 16... Bf6? { [%eval 1.51] } { Mistake. h6 was best. } 17. gxh7+ { [%eval 1.57] } 17... Kh8 { [%eval 1.65] } 18. O-O-O { [%eval 1.57] } 18... Bxd4 { [%eval 1.71] } 19. Qxd4 { [%eval 1.81] } 19... Qc5 { [%eval 1.73] } 20. Qxd6 { [%eval 1.6] } 20... Nf6 { [%eval 1.79] } 21. Qf4?! { [%eval 0.85] } { Inaccuracy. Qh2 was best. } 21... Nxh5 { [%eval 0.92] } 22. Qd2 { [%eval 0.8] } 22... Nf6?! { [%eval 1.42] } { Inaccuracy. Bc6 was best. } 23. Rdg1 { [%eval 1.42] } 23... Rfd8 { [%eval 1.59] } 24. Qf4?! { [%eval 0.9] } { Inaccuracy. Bd3 was best. } 24... Qd6?? { [%eval 5.14] } { Blunder. e5 was best. } 25. e5 { [%eval 4.99] } 25... Nd5 { [%eval 5.56] } 26. Nxd5 { [%eval 5.42] } 26... Qxd5 { [%eval 6.16] } 27. Qg5 { [%eval 5.96] } 27... Rxc2+ { [%eval 5.83] } 28. Kxc2 { [%eval 5.8] } 28... Qc5+ { [%eval 6.06] } 29. Kb1 { [%eval 5.81] } 29... Qf8 { [%eval 5.78] } 30. Rd1 { [%eval 5.8] } 30... Rc8 { [%eval 5.97] } 31. Rd6 { [%eval 6.06] } 31... Bd5 { [%eval 6.08] } 32. Rc1 { [%eval 5.45] } 32... f6?? { [%eval #12] } { Checkmate is now unavoidable. Rxc1+ was best. } 33. Rxc8 { [%eval #11] } 33... Qxc8 { [%eval #11] } 34. exf6 { [%eval #10] } 34... gxf6 { [%eval #10] } 35. Qxf6+ { [%eval #9] } 35... Kxh7 { [%eval #9] } 36. Bd3+ { [%eval #8] } 1-0