Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bg5 d5 3. Bxf6 gxf6 4. c4 dxc4 5. e3 Be6 6. Nc3 Nd7 7. d5 Bf5 8.
Bxc4 Nb6 9. Bb5+ Bd7 10. Bd3 c6 11. e4 cxd5 12. exd5 Qc7 13. Qf3 Qe5+ 14. Nge2
O-O-O 15. O-O-O Kb8 16. h3 Bc8 17. Be4 Bh6+ 18. Kb1 Nc4 19. Rhe1 Nd2+ 20. Rxd2
Bxd2 21. Rd1 Bh6 22. Nd4 Bd7 23. Nf5 Bxf5 24. Bxf5 Qf4 25. Qd3 Rd6 26. f3 Rhd8
27. Bxh7 Qe3 28. Qf1 Rb6 29. Rd3 Qe5 30. Qd1 Rc8 31. Ka1 Qf4 32. a3 Qd6 33. Ka2
Qc5 34. g4 Qc4+ 35. Ka1 Rb3 36. Rd4 Qc5 37. Qxb3 Qxd4 38. Be4 Qd2 39. d6 Qc1+
40. Ka2 Rxc3 *
Position (FEN): 1k6/pp2pp2/3P1p1b/8/4B1P1/PQr2P1P/KP6/2q5 w - - 0 41
White to move.
Themes: Queenside Attack Endgame Mate in 1 
Puzzle rating: 886
Best move: Qxb7#