Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Bc4 d6 3. Nc3 h6 4. Nf3 a5 5. a4 Bd7 6. d4 Nc6 7. d5 Nb4 8. O-O g5
9. Ne2 f5 10. c3 Na6 11. Kh1 g4 12. Nfg1 h5 13. f3 Nh6 14. Ng3 h4 15. Nxf5 Nxf5
16. exf5 Bxf5 17. fxg4 Bxg4 18. Qxg4 Nc5 19. Qg6+ Kd7 20. Bg5 Qe8 21. Rf7+ Kc8
22. Qf5+ Kb8 23. Rf1 Ka7 24. Rxc7 Nxa4 25. Ra1 Nxb2 26. Be3+ Kb8 27. Qf7 Qxf7
28. Rxf7 Nxc4 29. Bg5 a4 30. Raf1 Ka7 31. Ra1 Kb6 32. Rb1+ Kc5 33. Rfxb7 Kxd5
34. Rd1+ Ke6 35. Nf3 a3 36. Nxh4 a2 37. Ra1 Bh6 38. Re7+ Kd5 39. Rd1+ Ke4 *
Position (FEN): r6r/4R3/3p3b/4p1B1/2n1k2N/2P5/p5PP/3R3K w - - 6 40
White to move.
Themes: Pin Middlegame Mate in 1 
Puzzle rating: 1905
Best move: Rd4#