Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bf4 e6 3. Nf3 Be7 4. e3 d6 5. c4 Nbd7 6. Bd3 c5 7. d5 e5 8. Bg5 e4
9. Bxf6 Nxf6 10. Bc2 Bg4 11. h3 exf3 12. hxg4 fxg2 13. Rg1 Qb6 14. Nd2 O-O-O
15. g5 Nd7 16. Rxg2 Kb8 17. b3 Ne5 18. f4 Nc6 19. a4 Rde8 20. dxc6 Qxc6 21. Be4
Qc7 22. Qf3 f6 23. a5 fxg5 24. a6 Rhf8 25. axb7 gxf4 26. exf4 Bh4+ 27. Kd1 d5
28. cxd5 Rxf4 29. Qh5 g6 30. d6 Qxd6 31. Qxh7 g5 32. Kc1 Qe5 33. Rxa7 Kxa7 34.
b8=Q+ Kxb8 *
Position (FEN): 1k2r3/7Q/8/2p1q1p1/4Br1b/1P6/3N2R1/2K5 w - - 0 35
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 868
Best move: Qb7#