Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. b3 cxd4 5. exd4 Nc6 6. a3 d5 7. Bd3 Bd6 8. O-O
O-O 9. Bb2 Rb8 10. Qe2 a6 11. Ne5 Qb6 12. Rd1 Be7 13. Kh1 Nxe5 14. dxe5 Nd7 15.
Nd2 Qc7 16. Nf3 b5 17. Rac1 Bb7 18. Bd4 Rfc8 19. b4 Nf8 20. h4 h6 21. g4 Qd8
22. g5 hxg5 23. hxg5 Bxg5 24. Nxg5 Qxg5 25. Rg1 Qh6+ 26. Kg2 Ng6 27. Rh1 Qg5+
28. Kh2 Nf4 29. Qf3 g6 30. Be3 d4 31. Qxf4 *
Position (FEN): 1rr3k1/1b3p2/p3p1p1/1p2P1q1/1P1p1Q2/P2BB3/2P2P1K/2R4R b - - 0 31
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1570
Best move: Qg2#