Event: Round 6: Tiviakov, Sergei - Vaz, Ethan
Date: 2025-03-25
White: Tiviakov, Sergei
WhiteTitle: GM
WhiteElo: 2530
Black: Vaz, Ethan
BlackTitle: IM
BlackElo: 2430
Result: 1/2-1/2
ECO: B22
Opening: Sicilian Defense: Alapin Variation, Stoltz Attack, Ivanchuk Line
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] } 1... c5 { [%eval 0.25] } 2. c3 { [%eval 0.0] } 2... Nf6 { [%eval 0.02] } 3. e5 { [%eval 0.07] } 3... Nd5 { [%eval 0.1] } 4. Nf3 { [%eval 0.03] } 4... Nc6 { [%eval 0.11] } 5. Bc4 { [%eval 0.15] } 5... Nb6 { [%eval 0.23] } 6. Bb3 { [%eval 0.01] } 6... c4 { [%eval 0.22] } 7. Bc2 { [%eval 0.07] } 7... Qc7 { [%eval 0.38] } 8. Qe2 { [%eval 0.27] } 8... g5 { [%eval 0.34] } 9. h3 { [%eval 0.0] } 9... Bg7 { [%eval -0.02] } 10. O-O { [%eval 0.07] } 10... Nxe5 { [%eval 0.02] } 11. Nxg5 { [%eval -0.12] } 11... Nd5 { [%eval -0.12] } 12. d4 { [%eval -0.13] } 12... cxd3 { [%eval -0.07] } 13. Bxd3 { [%eval -0.18] } 13... Nxd3 { [%eval -0.16] } 14. Qxd3 { [%eval -0.16] } 14... Nf6? { [%eval 0.98] } { Mistake. Qc6 was best. } 15. Na3 { [%eval 0.51] } 15... a6 { [%eval 0.84] } 16. Re1 { [%eval 0.93] } 16... d6 { [%eval 0.89] } 17. Nc4 { [%eval 0.81] } 17... O-O { [%eval 0.91] } 18. Be3 { [%eval 0.9] } 18... Bf5 { [%eval 0.85] } 19. Qxf5 { [%eval 0.97] } 19... Qxc4 { [%eval 0.87] } 20. Rad1 { [%eval 0.93] } 20... h6 { [%eval 1.03] } 21. Nf3 { [%eval 1.06] } 21... Qxa2 { [%eval 1.04] } 22. Bc1 { [%eval 0.79] } 22... Rfe8 { [%eval 0.92] } 23. Nd4?! { [%eval 0.34] } { Inaccuracy. Rd4 was best. } 23... e5 { [%eval 0.59] } 24. Ne2 { [%eval 0.6] } 24... Qe6 { [%eval 0.6] } 25. Qf3 { [%eval 0.56] } 25... e4 { [%eval 0.71] } 26. Qg3 { [%eval 0.59] } 26... Rad8 { [%eval 0.97] } 27. Nd4 { [%eval 0.99] } 27... Qe5 { [%eval 1.0] } 28. Bf4?! { [%eval 0.03] } { Inaccuracy. Qh4 was best. } 28... Qh5 { [%eval 0.2] } 29. Bxd6 { [%eval 0.04] } 29... e3 { [%eval 0.04] } 30. f3 { [%eval -0.46] } 30... Kh8?! { [%eval 0.17] } { Inaccuracy. Nd5 was best. } 31. Nc2 { [%eval -0.05] } 31... Nd5 { [%eval -0.04] } 32. c4 { [%eval -0.08] } 32... Qf5 { [%eval -0.1] } 33. Nd4 { [%eval -0.07] } 33... Qg6 { [%eval -0.12] } 34. Qxg6 { [%eval -0.13] } 34... fxg6 { [%eval -0.21] } 35. c5 { [%eval -0.75] } 35... Nb4 { [%eval -0.74] } 36. Ne2 { [%eval -0.65] } 36... Nc2 { [%eval -0.7] } 37. Rf1 { [%eval -0.69] } 37... Bxb2?! { [%eval -0.05] } { Inaccuracy. Kg8 was best. } 38. Rb1 { [%eval -0.09] } 38... Bf6 { [%eval -0.09] } 39. Rxb7 { [%eval -0.18] } 39... Nd4 { [%eval -0.13] } 40. Nf4 { [%eval -0.28] } 40... Kg8 { [%eval -0.02] } 41. Nd5 { [%eval -0.06] } 41... Bh4 { [%eval -0.03] } 42. g3 { [%eval -0.09] } 42... e2 { [%eval -0.04] } 43. gxh4 { [%eval -0.06] } 43... Nxf3+ { [%eval -0.11] } 44. Kf2 { [%eval -0.38] } 44... exf1=Q+ { [%eval -0.47] } 45. Kxf1 { [%eval -0.47] } 45... Re6 { [%eval -0.46] } 46. h5 { [%eval -0.58] } 46... gxh5 { [%eval -0.45] } 47. Kf2?? { [%eval -2.45] } { Blunder. Ne7+ was best. } 47... Nh4 { [%eval -2.38] } 48. Ne7+ { [%eval -2.33] } 48... Kh8 { [%eval -2.25] } 49. Rb4 { [%eval -2.53] } 49... Rf8+ { [%eval -3.13] } 50. Kg3 { [%eval -3.13] } 50... Nf5+ { [%eval -2.93] } 51. Nxf5 { [%eval -3.02] } 51... Rxf5 { [%eval -2.9] } 52. Ra4 { [%eval -2.92] } 52... Kh7?! { [%eval -1.7] } { Inaccuracy. Re3+ was best. } 53. Rxa6 { [%eval -1.8] } 53... Re3+ { [%eval -1.63] } 54. Kg2 { [%eval -1.51] } 54... Re2+ { [%eval -1.45] } 55. Kg3 { [%eval -1.52] } 55... Re3+ { [%eval -0.92] } 56. Kg2 { [%eval -1.03] } 56... h4 { [%eval -0.67] } 57. Ra2 { [%eval -0.77] } 57... Rg5+ { [%eval -0.81] } 58. Kh2 { [%eval -0.85] } 58... Rd5 { [%eval -0.51] } 59. Rc2 { [%eval -0.58] } 59... Rdd3 { [%eval -0.33] } 60. Kg2 { [%eval -0.58] } 60... Re8 { [%eval -0.06] } 61. Bf4 { [%eval -0.01] } 61... Rg8+ { [%eval 0.0] } 62. Kh2 { [%eval -0.28] } 62... Rd4 { [%eval -0.3] } 63. Be3 { [%eval -0.32] } 63... Re4 { [%eval -0.31] } 64. Bf2 { [%eval -0.34] } 1/2-1/2