[Event "Позиция 20"] [Site "XChess.ru"] [Date "1976.??.??"] [White "Uhlmann, Wolfgang"] [Black "Boensch, Uwe"] [Result "1-0"] [WhiteElo "2555"] [BlackElo "2365"] [Variant "From Position"] [TimeControl "-"] [ECO "?"] [Opening "?"] [Termination "Unknown"] [FEN "3qr1k1/1p2pp1p/1P1p1bp1/3P3P/p1P3B1/Pn1QB1P1/5PK1/4R3 w - - 0 1"] [SetUp "1"] [Annotator "lichess.org"] 1. Rh1 Nc5 2. Qb1 Rf8 3. hxg6 hxg6? { (1.98 → 3.58) Mistake. fxg6 was best. } (3... fxg6 4. Qc1 Bg7 5. Qc2 Bf6 6. Bh6 Re8 7. Qb1 Bd4 8. Qe1 e5 9. dxe6 Qxb6 10. Qe2) 4. Qg1 Bg7? { (2.96 → 5.39) Mistake. e5 was best. } (4... e5 5. dxe6) 5. Qh2 f5 6. Qh7+ Kf7 7. Bxf5 gxf5 8. Qxf5+ Kg8 9. Qh7+ Kf7 10. Rh5 e6?! { (4.34 → 5.74) Inaccuracy. Qxb6 was best. } (10... Qxb6 11. Bh6 Qb2 12. Rf5+ Ke8 13. Bxg7 Qxg7 14. Qxg7 Rxf5 15. Qg6+ Rf7 16. g4 Kf8 17. g5) 11. Rg5 Rg8?! { (5.52 → 7.42) Inaccuracy. Qf6 was best. } (11... Qf6 12. dxe6+ Kxe6 13. Rg6 Rf7 14. Rxf6+ Bxf6 15. Qh5 Be5 16. Qg6+ Ke7 17. Qg5+ Kf8 18. f4) 12. Qg6+ Kf8? { (7.30 → Mate in 10) Checkmate is now unavoidable. Ke7 was best. } (12... Ke7 13. Bxc5 Qc8 14. Bb4 Qd7 15. Qxg7+ Rxg7 16. Rxg7+ Kd8 17. Rxd7+ Kxd7 18. dxe6+ Kxe6 19. g4) 13. Bxc5? { (Mate in 10 → 7.21) Lost forced checkmate sequence. dxe6 was best. } (13. dxe6 Nxe6 14. Rf5+ Bf6 15. Rxf6+ Qxf6 16. Qxf6+ Ke8 17. Qxe6+ Kf8 18. Bh6+ Rg7 19. Qf6+ Ke8) 13... dxc5 14. dxe6 Qe8 15. Rf5+ Ke7 16. Rf7+ Kd6 17. Rd7+ Qxd7 18. exd7+ Ke7 19. Qh7 { White wins. } 1-0