Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. Bb5 Qc7 5. d3 b6 6. a3 Bb7 7. Ng5 Nf6 8. h3 h5
9. Qf3 Bd6 10. Bd2 Nd4 11. Qd1 Bf4 12. Bxf4 Qxf4 13. Nf3 O-O-O 14. b4 d6 15. a4
a6 16. Bc4 d5 17. Nxd4 cxd4 18. Ne2 Qg5 19. exd5 exd5 20. Bb3 Qxg2 21. Rg1 Qxh3
22. Nxd4 Qh2 23. Rxg7 Qf4 24. Ne2 Rde8 25. Rxf7 Qg5 26. Qd2 *
Position (FEN): 2k1r2r/1b3R2/pp3n2/3p2qp/PP6/1B1P4/2PQNP2/R3K3 b Q - 2 26
Black to move.
Themes: Pin Middlegame Mate in 1 
Puzzle rating: 1691
Best move: Qg1#