Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 Nc6 5. f4 Nh6 6. c3 Bg4 7. Qb3 Qd7 8. Be3 g5
9. fxg5 Nf5 10. Bf4 h6 11. g6 fxg6 12. h3 g5 13. hxg4 gxf4 14. gxf5 Qxf5 15.
Nf3 Nxe5 16. Qxd5 Nxf3+ 17. Qxf3 Qe5+ 18. Qe2 Qxc5 19. Qb5+ Qxb5 20. Bxb5+ Kf7
21. Nd2 e5 22. Nf3 Bg7 23. O-O-O Rhd8 24. Bc4+ Kf6 25. Bd5 Rab8 26. Be4 Bf8 27.
Rxd8 Rxd8 28. Rd1 Rb8 29. Rd7 Bc5 30. Kc2 Rg8 31. Rd2 Be3 32. Re2 b5 33. Kb3 a5
34. Bc6 Rb8 35. a4 b4 36. c4 Kf5 37. Bd7+ Ke4 38. Kc2 Rd8 39. Be6 b3+ 40. Kc3 *
Position (FEN): 3r4/8/4B2p/p3p3/P1P1kp2/1pK1bN2/1P2R1P1/8 b - - 1 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 722
Best move: Rd3#