[Event "Upside Down Chess"] [Site "https://lichess.org/mPPK8RBh"] [Date "2020.10.21"] [White "JosepSalguero"] [Black "Nikitos680"] [Result "1-0"] [UTCDate "2020.10.21"] [UTCTime "19:40:17"] [WhiteElo "1116"] [BlackElo "1742"] [Variant "From Position"] [TimeControl "180+0"] [ECO "?"] [Opening "?"] [Termination "Normal"] [FEN "RNBKQBNR/PPPPPPPP/8/8/8/8/pppppppp/rnbkqbnr w - - 0 1"] [SetUp "1"] [Annotator "lichess.org"] 1. Nc6 Nc3 2. Nb4?? { (4.69 → -4.33) Blunder. Nh6 was best. } (2. Nh6 Nh3 3. g8=Q g1=Q 4. Bg7 b1=Q 5. f8=Q Bg2 6. b8=Q f1=Q) 2... b1=Q 3. b8=Q? { (-3.36 → -5.46) Mistake. Nf6 was best. } (3. Nf6) 3... Nb5?? { (-5.46 → 5.99) Blunder. Ba3 was best. } (3... Ba3 4. Nf6) 4. Qxb5? { (5.99 → 3.11) Mistake. Nf6 was best. } (4. Nf6) 4... Ba3?? { (3.11 → 7.09) Blunder. Nf3 was best. } (4... Nf3 5. Bb7) 5. Rb8 Kc1 6. Qc4 Bxb4 7. Rxb4?? { (9.97 → -3.42) Blunder. a8=Q was best. } (7. a8=Q d1=Q 8. Nf6 Qed2 9. Qxb4 Qbxb4 10. Rxb4 Qxb4 11. g8=Q e1=Q 12. Bh6+ Kb2 13. f8=Q Bc4) 7... d1=Q 8. Rxb1+?? { (-3.53 → -10.69) Blunder. Rb5 was best. } (8. Rb5 Qd6) 8... Rxb1?? { (-10.69 → 9.75) Blunder. axb1=Q was best. } (8... axb1=Q 9. Nf6) 9. a8=Q?? { (9.75 → -1.91) Blunder. Qxa2 was best. } (9. Qxa2 Qc3) 9... a1=Q 10. Qac6?? { (-2.75 → -8.12) Blunder. Qca2 was best. } (10. Qca2 Qxa2) 10... Qb2?? { (-8.12 → 2.13) Blunder. Qed2 was best. } (10... Qed2 11. Nf6) 11. Nf6 Qeb4?? { (1.92 → 12.07) Blunder. Qed2 was best. } (11... Qed2 12. Ne4) 12. g8=Q Qxc4 13. Qxc4 Qb3 14. Qxb3 Rxb3 15. Bg7 Kb2 16. Ng4+ Kb1 17. Nxf2 Qe1 18. Nxh1 c1=Q 19. f8=Q?? { (9.84 → Mate in 5) Checkmate is now unavoidable. Be5 was best. } (19. Be5 Qb4) 19... Qa5?? { (Mate in 5 → Mate in 2) Lost forced checkmate sequence. Qxc7+ was best. } (19... Qxc7+ 20. Kxc7 Qa5+ 21. Kd6 Rb6+ 22. Kc7 Rb5+ 23. Kd6 Qb6#) 20. Qxb3+ Qb2 21. Qxb2# { White wins by checkmate. } 1-0