Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. e3 Bg4 7. Nbd2 e5 8. dxe5
dxe5 9. Qe1 Nbd7 10. b3 e4 11. Nd4 c5 12. Ne2 Bxe2 13. Qxe2 Nd5 14. Qc4 N7b6
15. Qxc5 Bxa1 16. Ba3 Bc3 17. Nxe4 Bg7 18. c4 Nf6 19. Nxf6+ Qxf6 20. Bxb7 Nd7
21. Qb5 Rad8 22. Rd1 Ne5 23. Bd5 Rfe8 24. Kg2 Ng4 25. Rd2 Rxe3 26. fxe3 Nxe3+
27. Kh3 Qf5+ 28. g4 *
Position (FEN): 3r2k1/p4pbp/6p1/1Q1B1q2/2P3P1/BP2n2K/P2R3P/8 b - - 0 28
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1223
Best move: Qxg4#