[Event "Niedzielny Turniej Sigma Szach"] [Site "https://lichess.org/R01DeGpx"] [Date "2025.12.21"] [Round "-"] [White "Olaf_16"] [Black "Michal-Sigma"] [Result "0-1"] [GameId "R01DeGpx"] [UTCDate "2025.12.21"] [UTCTime "18:06:10"] [WhiteElo "1206"] [BlackElo "1445"] [WhiteRatingDiff "-34"] [BlackRatingDiff "+30"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C20"] [Opening "King's Pawn Game: Leonardis Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 { [%eval 0.18] } 1... e5 { [%eval 0.22] } 2. d3 { [%eval 0.0] } { C20 King's Pawn Game: Leonardis Variation } 2... Nf6 { [%eval 0.01] } 3. Be2 { [%eval -0.2] } 3... Nc6 { [%eval -0.11] } 4. Bd2 { [%eval -0.54] } 4... Nd4?! { (-0.54 → 0.03) Inaccuracy. d5 was best. } { [%eval 0.03] } (4... d5 5. exd5 Qxd5 6. Nf3 Bf5 7. O-O O-O-O 8. Nc3 Qd7 9. a3) 5. c3 { [%eval -0.33] } 5... Nxe2 { [%eval -0.35] } 6. Kxe2?! { (-0.35 → -1.44) Inaccuracy. Qxe2 was best. } { [%eval -1.44] } (6. Qxe2 d5) 6... d5 { [%eval -1.58] } 7. exd5? { (-1.58 → -3.57) Mistake. Nf3 was best. } { [%eval -3.57] } (7. Nf3 Be6) 7... Qxd5 { [%eval -3.74] } 8. c4? { (-3.74 → -6.41) Mistake. Nf3 was best. } { [%eval -6.41] } (8. Nf3 Bf5 9. Be3 O-O-O 10. Ne1 e4 11. d4 Bg4+ 12. f3 Qb5+ 13. c4 Qxc4+) 8... Qxg2 { [%eval -6.28] } 9. Nf3 { [%eval -7.54] } 9... e4 { [%eval -6.3] } 10. dxe4 { [%eval -6.44] } 10... Nxe4?! { (-6.44 → -4.47) Inaccuracy. Bg4 was best. } { [%eval -4.47] } (10... Bg4 11. Qa4+ c6 12. Qb3 Bc5 13. Ba5 Qxf2+ 14. Kd3 O-O 15. Nbd2 Bxf3 16. Rhe1) 11. Be3? { (-4.47 → -7.90) Mistake. Qf1 was best. } { [%eval -7.9] } (11. Qf1 Qg6 12. Ke1 Bg4 13. Ne5 Qe6 14. Qg2 Qxe5 15. Qxg4 Nxd2+ 16. Kd1 Qxb2) 11... Bg4 { [%eval -7.63] } 12. Rg1 { [%eval -11.16] } 12... Bxf3+ { [%eval -9.4] } 13. Kd3 { [%eval -9.05] } 13... Bxd1?! { (-9.05 → -5.92) Inaccuracy. Rd8+ was best. } { [%eval -5.92] } (13... Rd8+ 14. Kc2 Bxd1+ 15. Rxd1 Rxd1 16. Kxd1 Nxf2+ 17. Bxf2 Qxf2 18. Nc3 Bd6 19. Nb5) 14. Rxg2 { [%eval -6.02] } 14... Bf3 { [%eval -5.97] } 15. Kd4?? { (-5.97 → Mate in 4) Checkmate is now unavoidable. Rg1 was best. } { [%eval #-4] } (15. Rg1 O-O-O+ 16. Kc2 b6 17. Nc3 Nxc3 18. bxc3 Rg8 19. Bg5 Re8 20. Bf4 Bc5) 15... Bxg2? { (Mate in 4 → -8.35) Lost forced checkmate sequence. O-O-O+ was best. } { [%eval -8.35] } (15... O-O-O+ 16. Ke5 Bd6+ 17. Kf5 g6+ 18. Rxg6 hxg6#) 16. Kd3 { [%eval -8.5] } 16... Bc5 { [%eval -8.51] } 17. Bxc5 { [%eval -8.49] } 17... Nxc5+ { [%eval -8.58] } 18. Kd4 { [%eval -8.53] } 18... Ne6+ { [%eval -8.35] } 19. Ke5? { (-8.35 → Mate in 5) Checkmate is now unavoidable. Ke3 was best. } { [%eval #-5] } (19. Ke3 O-O-O 20. f3 Rhe8 21. Kf2 Bh1 22. Nc3 Rd2+ 23. Ke3 Rxh2 24. Nd5 Ng5+) 19... f6+ { [%eval #-6] } 20. Kxe6 { [%eval #-3] } 20... O-O-O { [%eval #-3] } 21. Kf7 { [%eval #-2] } 21... Rhf8+? { (Mate in 2 → -7.15) Lost forced checkmate sequence. Rd7+ was best. } { [%eval -7.15] } (21... Rd7+ 22. Ke6 Bh3#) 22. Kxg7 { [%eval -7.21] } 22... Rg8+ { [%eval -7.25] } 23. Kxh7? { (-7.25 → Mate in 3) Checkmate is now unavoidable. Kf7 was best. } { [%eval #-3] } (23. Kf7 Rdf8+ 24. Ke7 Re8+ 25. Kf7 Bh3 26. Na3 Be6+ 27. Kxf6 Rgf8+ 28. Ke5 Bxc4+) 23... Rh8+?? { (Mate in 3 → -6.62) Lost forced checkmate sequence. Be4+ was best. } { [%eval -6.62] } (23... Be4+ 24. Kh6 Rg1 25. Nc3 Rh8#) 24. Kg7 { [%eval -6.54] } 24... Rdg8+ { [%eval -6.35] } 25. Kxf6 { [%eval -7.81] } 25... Rf8+ { [%eval -7.03] } 26. Kg7? { (-7.03 → Mate in 4) Checkmate is now unavoidable. Ke5 was best. } { [%eval #-4] } (26. Ke5 Rh5+ 27. Kd4 c5+ 28. Kd3 Rh3+ 29. Ke2 Bf3+ 30. Kd2 Bh5 31. Nc3 Rxf2+) 26... Rhg8+ { [%eval #-3] } 27. Kh7 { [%eval #-3] } 27... Rg4? { (Mate in 3 → -7.45) Lost forced checkmate sequence. Be4+ was best. } { [%eval -7.45] } (27... Be4+ 28. Kh6 Rg2 29. h3 Rh8#) 28. Kh6? { (-7.45 → Mate in 1) Checkmate is now unavoidable. Nd2 was best. } { [%eval #-1] } (28. Nd2 Rxf2 29. h3 Rh4+ 30. Kg7 Rxd2 31. Re1 Be4 32. Kf6 Bc6 33. b4 Rf4+) 28... Rh8# { Black wins by checkmate. } 0-1