Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. Nc3 g6 3. e4 Bg7 4. g3 d6 5. Bg2 e5 6. d3 Be6 7. h3 Nbd7 8. Nge2
c5 9. O-O Nb6 10. Be3 a6 11. Qd2 h6 12. Kh2 Qe7 13. f3 Nbd7 14. Rf2 b6 15. Raf1
g5 16. f4 exf4 17. gxf4 gxf4 18. Nxf4 O-O-O 19. a3 Ne5 20. b4 Rhg8 21. Ncd5
Nxd5 22. cxd5 Bd7 23. bxc5 dxc5 24. Nh5 Qh4 25. Nxg7 Rxg7 26. Rf4 Qh5 27. Rf5
Bxf5 28. Rxf5 Qg6 29. Bf4 f6 30. d4 Nf3+ 31. Bxf3 *
Position (FEN): 2kr4/6r1/pp3pqp/2pP1R2/3PPB2/P4B1P/3Q3K/8 b - - 0 31
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1037
Best move: Qg1#