Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8.
Bb5+ Nc6 9. Rb1 Qa5 10. O-O O-O 11. d5 Nb8 12. c4 Bg4 13. Ba4 Bxf3 14. gxf3 Qa6
15. Qc2 b6 16. f4 Qc8 17. Kh1 Nd7 18. e5 Qc7 19. Be3 Rad8 20. Qe2 f6 21. e6 Nb8
22. f5 Qe5 23. Bc2 g5 24. f4 gxf4 25. Rxf4 Kh8 26. Rg1 Rg8 27. Re4 Qc3 28. Qh5
Bh6 29. Qxh6 Rxg1+ 30. Bxg1 *
Position (FEN): 1n1r3k/p3p2p/1p2Pp1Q/2pP1P2/2P1R3/2q5/P1B4P/6BK b - - 0 30
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 877
Best move: Qf3#