Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8.
Ne2 O-O 9. O-O Nc6 10. Be3 Qc7 11. Rc1 Rd8 12. Qd2 a6 13. a4 Qa5 14. Qa2 e6 15.
dxc5 Ne5 16. Rfd1 Bd7 17. Bb3 Bc6 18. f3 Nd3 19. Rb1 Nxc5 20. Rxd8+ Rxd8 21.
Rd1 Nxb3 22. Rxd8+ Qxd8 23. Qxb3 Qd3 24. Kf2 h5 25. Qb4 Qd1 26. a5 Qc2 27. c4
Qd3 28. Nf4 Qc2+ 29. Kg3 Bf8 30. Bc5 Bh6 31. Nh3 Qd2 32. Qxd2 Bxd2 33. Bb6 Ba4
34. c5 Kf8 35. Kf2 Ke8 36. Ke2 Bb4 37. Kd3 Kd7 38. Kd4 Kc6 39. Nf4 e5+ 40. Kxe5
*
Position (FEN): 8/1p3p2/pBk3p1/P1P1K2p/bb2PN2/5P2/6PP/8 b - - 0 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 585
Best move: Bc3#