[Event "ASzBialystok Arena"] [Site "https://lichess.org/cPVXjEiZ"] [Date "2022.03.14"] [White "mahos15"] [Black "OskarNaszkiewicz"] [Result "0-1"] [UTCDate "2022.03.14"] [UTCTime "18:29:36"] [WhiteElo "944"] [BlackElo "1267"] [WhiteRatingDiff "-29"] [BlackRatingDiff "+35"] [Variant "Standard"] [TimeControl "420+3"] [ECO "C20"] [Opening "Portuguese Opening"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 e5 2. Bb5 { C20 Portuguese Opening } Nh6? { (-0.21 → 0.94) Mistake. Nf6 was best. } (2... Nf6 3. d3 c6 4. Ba4 a5 5. c4 d5 6. cxd5 b5 7. Bc2) 3. Nh3?? { (0.94 → -0.85) Blunder. Nf3 was best. } (3. Nf3 c6 4. Ba4 d6 5. d4 Ng4 6. O-O Be7 7. h3 Nf6) 3... c6 4. Bc4? { (-0.62 → -2.11) Mistake. Be2 was best. } (4. Be2 d5 5. d3 Bxh3 6. gxh3 g6 7. O-O Bg7 8. Bf3 O-O 9. exd5 Nf5 10. Nc3 h6) 4... b5?? { (-2.11 → 0.28) Blunder. d5 was best. } (4... d5 5. Bf1 dxe4 6. Nc3 Bg4 7. Be2 Bxh3 8. gxh3 Nd7 9. d3 e3 10. Bxe3 Nf5 11. O-O) 5. O-O?? { (0.28 → -6.76) Blunder. Bb3 was best. } (5. Bb3 d5) 5... bxc4 6. d3 cxd3 7. Qxd3 Ba6 8. Qxa6?! { (-6.00 → -11.30) Inaccuracy. c4 was best. } (8. c4 d6 9. b4 Nd7 10. Bxh6 gxh6 11. Nd2 Rg8 12. Rfd1 Bc8 13. Kh1 Rg6 14. Nf1 Nf6) 8... Nxa6 9. Rd1 Bc5 10. Nc3 Nb4 11. a3 Nxc2 12. Ra2 Nd4 13. Rd2 Nb5 14. Na4 Nc3 15. Nxc5 Nxa2 16. Ne6 Qb6 17. Nd4 Nxc1 18. Rc2 Nb3 19. Rxc6 Qxd4 20. Rc2?! { (-25.60 → Mate in 1) Checkmate is now unavoidable. Kh1 was best. } (20. Kh1 Ng4) 20... Qd1# { Black wins by checkmate. } 0-1