[Event "2026 Spring Marathon"] [Site "https://adjva4.dpdns.org/2OkXA492"] [Date "2026.04.18"] [Round "-"] [White "boazstace"] [Black "Sand_Dragon"] [Result "0-1"] [GameId "2OkXA492"] [UTCDate "2026.04.18"] [UTCTime "05:45:07"] [WhiteElo "1515"] [BlackElo "1865"] [WhiteRatingDiff "-2"] [BlackRatingDiff "+5"] [Variant "Standard"] [TimeControl "120+0"] [ECO "A45"] [Opening "Indian Defense: Accelerated London System"] [Termination "Normal"] [Annotator "adjva4.dpdns.org"] 1. d4 { [%eval 0.15] } 1... Nf6 { [%eval 0.15] } 2. Bf4 { [%eval 0.0] } { A45 Indian Defense: Accelerated London System } 2... g6 { [%eval 0.06] } 3. e3 { [%eval 0.0] } 3... Bg7 { [%eval 0.13] } 4. Bb5?! { (0.13 → -0.48) Inaccuracy. Nf3 was best. } { [%eval -0.48] } (4. Nf3 c5 5. c3 Qb6 6. Nbd2 O-O 7. Nc4 Qc6 8. a4 b6) 4... Nh5 { [%eval -0.5] } 5. Bg3 { [%eval -0.45] } 5... Nxg3 { [%eval -0.44] } 6. hxg3 { [%eval -0.51] } 6... O-O { [%eval -0.42] } 7. Nc3 { [%eval -0.86] } 7... d6 { [%eval -0.83] } 8. Nf3 { [%eval -0.79] } 8... c6 { [%eval -0.8] } 9. Ba4 { [%eval -1.18] } 9... e5? { (-1.18 → 0.17) Mistake. b5 was best. } { [%eval 0.17] } (9... b5 10. Bb3 a5 11. a4 b4 12. Ne2 Nd7 13. O-O e5 14. c3 Rb8 15. dxe5) 10. dxe5 { [%eval 0.12] } 10... dxe5 { [%eval 0.26] } 11. Bb3 { [%eval -0.03] } 11... Bg4?? { (-0.03 → 3.69) Blunder. Qe7 was best. } { [%eval 3.69] } (11... Qe7 12. Ne4 Rd8 13. Qe2 Bg4 14. Qc4 Be6 15. Qc5 Qxc5 16. Nxc5 Bxb3 17. axb3) 12. Qxd8 { [%eval 3.72] } 12... Rxd8 { [%eval 3.82] } 13. Rd1?? { (3.82 → 0.00) Blunder. Ng5 was best. } { [%eval 0.0] } (13. Ng5 Be6 14. Nxe6 fxe6 15. Bxe6+ Kf8 16. Rxh7 Re8 17. Bb3 Nd7 18. Ne4 Re7) 13... Na6?? { (0.00 → 1.93) Blunder. Rxd1+ was best. } { [%eval 1.93] } (13... Rxd1+ 14. Nxd1 Bxf3 15. gxf3 Nd7 16. Nc3 a5 17. a3 Nc5 18. Ke2 Nxb3 19. cxb3) 14. Rxd8+ { [%eval 1.66] } 14... Rxd8 { [%eval 1.62] } 15. Ke2?? { (1.62 → -1.55) Blunder. Ng5 was best. } { [%eval -1.55] } (15. Ng5 e4 16. f3 Bxc3+ 17. bxc3 exf3 18. gxf3 Be6 19. Bxe6 fxe6 20. Nxh7 Nc5) 15... Nc5 { [%eval -1.23] } 16. Rd1?? { (-1.23 → -4.76) Blunder. e4 was best. } { [%eval -4.76] } (16. e4 h5 17. Rd1 Rxd1 18. Kxd1 Bh6 19. a3 Nxb3 20. cxb3 Kf8 21. b4 Ke7) 16... Rxd1 { [%eval -4.77] } 17. Kxd1 { [%eval -5.01] } 17... e4 { [%eval -5.0] } 18. Nxe4 { [%eval -5.56] } 18... Nxe4 { [%eval -5.45] } 19. Ke1 { [%eval -5.72] } 19... Bxb2 { [%eval -5.69] } 20. Ne5 { [%eval -7.13] } 20... Bxe5 { [%eval -7.01] } 21. f3 { [%eval -7.02] } 21... Bxg3+ { [%eval -6.51] } 22. Kf1 { [%eval -7.54] } 22... Nd2+ { [%eval -7.44] } 23. Kg1 { [%eval -7.83] } 23... Nxb3 { [%eval -7.54] } 24. fxg4 { [%eval -11.71] } 24... Nd2 { [%eval -10.25] } 25. Kh1?! { (-10.25 → Mate in 17) Checkmate is now unavoidable. g5 was best. } { [%eval #-17] } (25. g5 f5 26. gxf6 Kf7 27. c4 Kxf6 28. c5 a5 29. Kh1 Kf5 30. Kg1 Ke4) 25... f5 { [%eval -11.3] } 26. gxf5?! { (-11.30 → Mate in 14) Checkmate is now unavoidable. g5 was best. } { [%eval #-14] } (26. g5 Kf7 27. Kg1 Ke6 28. Kh1 a5 29. Kg1 Kd5 30. Kh1 Ke4 31. Kg1 Kxe3) 26... gxf5 { [%eval #-15] } 27. a4 { [%eval #-8] } 27... b5 { [%eval #-7] } 28. axb5 { [%eval #-6] } 28... cxb5 { [%eval #-5] } 29. c3 { White offers draw } { [%eval #-5] } 29... a5 { [%eval #-4] } 30. Kg1 { [%eval #-4] } 30... a4 { [%eval #-3] } 31. Kh1 { [%eval #-3] } 31... a3 { [%eval #-2] } 32. Kg1 { [%eval #-2] } 32... a2 { [%eval #-1] } 33. Kh1 { [%eval #-1] } 33... a1=Q# { Black wins by checkmate. } 0-1