Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. e3 c5 3. dxc5 e5 4. b4 a6 5. c3 Nc6 6. a3 b6 7. cxb6 Qxb6 8. Bb2
Be6 9. Nf3 Be7 10. Be2 Rd8 11. O-O a5 12. b5 Na7 13. a4 Nc8 14. Qc2 Nd6 15.
Nxe5 Bf6 16. Nc6 Rc8 17. Nd2 Ne7 18. Rac1 Nxc6 19. bxc6 O-O 20. Ba3 Rfd8 21.
Bxd6 Rxd6 22. Bb5 Qd8 23. c4 d4 24. exd4 Rxd4 25. Nf3 Rg4 26. Rfd1 Qc7 27. Qd3
h5 28. h3 Rg6 29. Kf1 Qf4 30. Qe3 Qc7 31. Rd3 Re8 32. Qc5 h4 33. Rcd1 Rxg2 34.
Kxg2 Bxh3+ 35. Kxh3 Qf4 36. Qd5 Be5 37. c7 Qf5+ 38. Kg2 Qg4+ 39. Kf1 Qh3+ 40.
Ke1 *
Position (FEN): 4r1k1/2P2pp1/8/pB1Qb3/P1P4p/3R1N1q/5P2/3RK3 b - - 6 40
Black to move.
Themes: Double Check Middlegame Mate in 1 
Puzzle rating: 1302
Best move: Bc3#