Chess puzzle (Checkmate)
Moves: 1. e4 a5 2. c4 a4 3. d3 g6 4. Nc3 Bg7 5. Nxa4 Nf6 6. Nc3 d6 7. a4 Nc6 8. h3 Nd4
9. Nf3 Nc6 10. Rb1 Nd7 11. Be2 Nde5 12. O-O Nxf3+ 13. Bxf3 Nd4 14. Nd5 Nxf3+
15. Qxf3 Rxa4 16. b3 Ra8 17. Bb2 Bxb2 18. Rxb2 O-O 19. Qg3 c5 20. f4 f5 21. e5
dxe5 22. fxe5 e6 23. Nf6+ Kg7 24. Rf4 Ra1+ 25. Kh2 Rxf6 26. exf6+ Qxf6 27. Rff2
b5 28. Qc7+ Kh6 29. Qxc8 Qe5+ 30. g3 Qe1 31. g4 *
Position (FEN): 2Q5/7p/4p1pk/1pp2p2/2P3P1/1P1P3P/1R3R1K/r3q3 b - - 0 31
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1452
Best move: Qg1#