Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c5 7. Bd3 cxd4 8. Bxd4
Nc6 9. Be3 Qa5 10. Ne2 Be6 11. O-O Rfc8 12. b3 Nd7 13. Rc1 Nc5 14. Bb1 a6 15.
Nd4 Nxd4 16. Bxd4 Bxd4+ 17. Qxd4 Nd7 18. Kh1 Qe5 19. Qd2 Nf6 20. f4 Qh5 21. f5
Bd7 22. Qd4 gxf5 23. exf5 Bc6 24. Rf4 Qh3 25. Qf2 Ng4 26. Qe2 *
Position (FEN): r1r3k1/1p2pp1p/p1bp4/5P2/2P2Rn1/1PN4q/P3Q1PP/1BR4K b - - 6 26
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1043
Best move: Qxh2#