Chess puzzle (Checkmate)
Moves: 1. Nf3 c5 2. g3 Nc6 3. Bg2 f6 4. c3 e5 5. d4 cxd4 6. cxd4 e4 7. Nfd2 d5 8. Nb3
Nge7 9. O-O Ng6 10. Nc3 Be6 11. Nc5 Qd6 12. Nxb7 Qc7 13. Nc5 Bxc5 14. dxc5 Rd8
15. Nb5 Qe5 16. Nd6+ Rxd6 17. cxd6 Qxd6 18. Bxe4 O-O 19. Bxg6 hxg6 20. Bf4 Qb4
21. Qb3 Qe4 22. Qb7 Bh3 23. f3 Qe6 24. Rac1 Nd4 25. Rfe1 g5 26. Rc7 Nxf3+ 27.
Kf2 Qb6+ 28. Kxf3 *
Position (FEN): 5rk1/pQR3p1/1q3p2/3p2p1/5B2/5KPb/PP2P2P/4R3 b - - 0 28
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1276
Best move: g4#