Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. dxc5 Bxc5 5. Qg4 Bf8 6. Bg5 Qc7 7. Nf3 Nc6 8. Qg3
Bd7 9. Nc3 a6 10. Bd3 Nge7 11. O-O O-O-O 12. Rfe1 Re8 13. Be3 Kb8 14. Na4 Nc8
15. b3 h6 16. Nb2 g5 17. c4 Bg7 18. cxd5 Nxe5 19. Rac1 Nxf3+ 20. Qxf3 Qa5 21.
Nc4 Qd8 22. Qg3+ e5 23. Bd4 f6 24. Bg6 Re7 25. Bc5 Ka8 26. Bb4 h5 27. Qf3 Bg4
28. Qe4 Rc7 29. d6 Rd7 30. Na5 Kb8 31. Qd5 h4 32. h3 Bh5 33. Bf5 Bf7 34. Qf3
Bh5 35. Qe4 Be8 36. Bxd7 Qxd7 37. Rc7 Nxd6 38. Bxd6 Qxc7 39. Rc1 Qxd6 *
Position (FEN): 1k2b2r/1p4b1/p2q1p2/N3p1p1/4Q2p/1P5P/P4PP1/2R3K1 w - - 0 40
White to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 597
Best move: Qxb7#