Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 c5 3. c3 Nc6 4. Nd2 Nf6 5. e3 Bf5 6. Ngf3 e6 7. Qa4 Bd6 8. Ba6
O-O 9. Bxb7 Bxf4 10. exf4 cxd4 11. Qxc6 dxc3 12. bxc3 Rb8 13. Nb3 Ne4 14. Rc1
Qf6 15. Nfd4 Bg6 16. O-O Rfd8 17. Ba6 Rb6 18. Qa4 Qxf4 19. Be2 Qd6 20. Bf3 e5
21. Ne2 Ng5 22. Bg4 f5 23. Bh3 Nxh3+ 24. gxh3 f4 25. Rfd1 Be4 26. c4 Qg6+ 27.
Kf1 Qg2+ 28. Ke1 Qh1+ 29. Kd2 dxc4+ 30. Kc3 Rxd1 *
Position (FEN): 6k1/p5pp/1r6/4p3/Q1p1bp2/1NK4P/P3NP1P/2Rr3q w - - 0 31
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 999
Best move: Qe8#