Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 O-O 5. e4 d6 6. Bg5 h6 7. Bh4 Nbd7 8. Be2
e5 9. d5 a5 10. a4 Nc5 11. O-O g5 12. Bg3 Ncxe4 13. Nxe4 Nxe4 14. Qd3 f5 15. h3
Nxg3 16. fxg3 e4 17. Qb3 exf3 18. Qxf3 Bxb2 19. Rab1 Be5 20. Qh5 Qf6 21. g4 f4
22. g3 Bd4+ 23. Kg2 Qg7 24. gxf4 Rxf4 25. Rxf4 gxf4 26. Bd3 Bd7 27. Rxb7 Bxa4
28. Qf5 Rf8 29. Qe6+ Kh8 30. Kf3 Bd1+ 31. Be2 Bxe2+ 32. Qxe2 Be3 33. Rb5 Ra8
34. Qa2 Qc3 35. Rb3 Qd4 36. Rb7 Qd1+ 37. Ke4 Qh1+ 38. Kf5 Rf8+ 39. Kg6 Bb6 40.
Qb2+ Kg8 *
Position (FEN): 5rk1/1Rp5/1b1p2Kp/p2P4/2P2pP1/7P/1Q6/7q w - - 17 41
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 920
Best move: Qg7#