lichess dev

[Event "Black12 Arena"] [Site "http://chess-academy.net/OSKP71rq"] [Date "2026.06.04"] [Round "-"] [White "Matvei2016"] [Black "DavidP"] [Result "1-0"] [UTCDate "2026.06.04"] [UTCTime "16:08:14"] [WhiteElo "1338"] [BlackElo "998"] [WhiteRatingDiff "+3"] [BlackRatingDiff "-3"] [Variant "Standard"] [TimeControl "420+0"] [ECO "A00"] [Opening "Van't Kruijs Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e3 { A00 Van't Kruijs Opening } e6 2. Nf3 Nf6 3. Ng5? { (0.27 → -0.84) Mistake. Best move was d4. } (3. d4 c5 4. c4 d5 5. Nc3 Nc6 6. Be2 dxc4 7. O-O cxd4) 3... Ng4?? { (-0.84 → 4.28) Blunder. Best move was d5. } (3... d5 4. d4) 4. Qxg4 Qxg5?? { (4.03 → 13.73) Blunder. Best move was Be7. } (4... Be7) 5. Qxg5 g6 6. Qg3 Be7 7. Qe5 Nc6 8. Qxh8+ Bf8 9. Qxh7 Ne7 10. h4 Nf5 11. Rh3 Ne7 12. Rf3 f5 13. Bb5 Bg7 14. Qxg7 Nd5 15. Qh8+ Ke7 16. Qh7+ Kd6 17. Be2 Nf6 18. Qh6 Ng8 19. Qh8 Ne7 20. e4 fxe4?! { (32.28 → Mate in 6) Checkmate is now unavoidable. Best move was b5. } (20... b5) 21. Rc3?! { (Mate in 6 → 35.12) Lost forced checkmate sequence. Best move was d4. } (21. d4 Kc6 22. Rc3+ Kb6 23. d5 Nc6 24. Be3+ Nd4 25. Qxd4+ Ka5 26. Ra3#) 21... Nf5?! { (35.12 → Mate in 6) Checkmate is now unavoidable. Best move was g5. } (21... g5 22. hxg5) 22. Rc4?! { (Mate in 6 → 29.86) Lost forced checkmate sequence. Best move was Qf8+. } (22. Qf8+ Ne7 23. d4 exd3 24. Bf4+ Kd5 25. Bf3+ Kd4 26. Qf6+ e5 27. Bxe5#) 22... Ne7?! { (29.86 → Mate in 4) Checkmate is now unavoidable. Best move was c6. } (22... c6 23. g4) 23. Qd4+?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was d4. } (23. d4 Ng8 24. Bg5 Nf6 25. Qf8+ Kd5 26. Nc3#) 23... Nd5 24. Qc5+ Ke5 25. Rd4?! { (Mate in 4 → 28.16) Lost forced checkmate sequence. Best move was d4+. } (25. d4+ exd3 26. Bf4+ Kf5 27. g4+ Kf6 28. Qf8#) 25... Kf4?! { (28.16 → Mate in 3) Checkmate is now unavoidable. Best move was d6. } (25... d6 26. Rxd5+) 26. Qc4?! { (Mate in 3 → 33.63) Lost forced checkmate sequence. Best move was Rxd5. } (26. Rxd5 exd5 27. Qxd5 a5 28. g3#) 26... Nb6?! { (33.63 → Mate in 3) Checkmate is now unavoidable. Best move was Ke5. } (26... Ke5 27. Nc3) 27. g3+?! { (Mate in 3 → Mate in 6) Not the best checkmate sequence. Best move was Rxe4+. } (27. Rxe4+ Kf5 28. Rf4+ Ke5 29. Qd4#) 27... Kf5 28. Qc5+ Kf6 29. Rc4?! { (Mate in 4 → 29.05) Lost forced checkmate sequence. Best move was Qf8+. } (29. Qf8+ Ke5 30. Qg7+ Kf5 31. g4+ Kf4 32. d3#) 29... Nxc4?! { (29.05 → Mate in 6) Checkmate is now unavoidable. Best move was Kf7. } (29... Kf7 30. Rxe4) 30. Bxc4?! { (Mate in 6 → 29.87) Lost forced checkmate sequence. Best move was Qf8+. } (30. Qf8+ Ke5 31. Bxc4 g5 32. hxg5 Kd4 33. d3 a6 34. Be3+ Ke5 35. d4#) 30... a5?! { (29.87 → Mate in 4) Checkmate is now unavoidable. Best move was Kf7. } (30... Kf7 31. Qxc7 g5 32. Nc3 gxh4 33. Nxe4 hxg3 34. Nd6+ Kf6 35. Nxc8 Rxc8 36. Qxc8 d5 37. Bd3) 31. Qd4+?! { (Mate in 4 → 27.58) Lost forced checkmate sequence. Best move was Qf8+. } (31. Qf8+ Ke5 32. b4 d5 33. Bb2+ d4 34. Qf4#) 31... Ke7 32. Qc5+ Kd8?! { (30.37 → Mate in 1) Checkmate is now unavoidable. Best move was Kf7. } (32... Kf7 33. Qxc7) 33. Qg5+?! { (Mate in 1 → 32.81) Lost forced checkmate sequence. Best move was Qf8#. } (33. Qf8#) 33... Ke8 34. Qxg6+ Kd8 35. h5 Ra7?! { (30.26 → Mate in 6) Checkmate is now unavoidable. Best move was Ke7. } (35... Ke7 36. h6) 36. h6 b5 37. h7?! { (Mate in 4 → Mate in 8) Not the best checkmate sequence. Best move was Qf6+. } (37. Qf6+ Ke8 38. h7 d5 39. Qg7 dxc4 40. h8=R#) 37... Ra6 38. h8=Q+?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Qf6+. } (38. Qf6+ Ke8 39. h8=Q#) 38... Ke7 39. Qgg7+?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qg5+. } (39. Qg5+ Kd6 40. Qd4+ Kc6 41. Qxb5#) 39... Kd6 40. Bxb5?! { (Mate in 3 → Mate in 5) Not the best checkmate sequence. Best move was Qe5+. } (40. Qe5+ Kc6 41. Qxb5+ Kd6 42. Qf8#) 40... Rb6 41. Qgf8+ Kd5 42. Qh5+?! { (Mate in 1 → Mate in 3) Not the best checkmate sequence. Best move was c4#. } (42. c4#) 42... Kd4 43. Qf6+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was c3#. } (43. c3#) 43... e5 44. Qfxe5# { White wins by checkmate. } 1-0