Chess puzzle (Checkmate)
Moves: 1. e4 Nf6 2. d3 d5 3. Nd2 dxe4 4. dxe4 e5 5. Bc4 Bc5 6. Ngf3 Bg4 7. O-O O-O 8.
c3 a5 9. a4 Nc6 10. Qb3 b6 11. Bb5 Na7 12. Nxe5 Nxb5 13. Qxb5 Be6 14. Nef3 Bd7
15. Qe2 Bc6 16. Re1 Qd7 17. Qd1 Rad8 18. Qc2 Qg4 19. h3 Qh5 20. Nf1 Rfe8 21.
Ng3 Qg6 22. Kh2 Nxe4 23. Nxe4 Bxe4 24. Qe2 h6 25. Be3 Bd6+ 26. Kg1 Bb7 27. Kh1
Qf6 28. Rad1 Qf5 29. Rd4 Qg6 30. Rg4 Qh7 31. Qf1 Bc8 32. Rd4 Qf5 33. Red1 Bb7
34. Qe2 Re7 35. Rg4 Rde8 36. Rdd4 Qf6 37. Qd1 Rxe3 38. fxe3 Rxe3 39. Rxd6 cxd6
40. Rg3 Qe6 41. Qd4 Re4 *
Position (FEN): 6k1/1b3pp1/1p1pq2p/p7/P2Qr3/2P2NRP/1P4P1/7K w - - 4 42
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 812
Best move: Qxg7#