Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 g6 6. Rc1 Bg7 7. e3 O-O 8. cxd5
cxd5 9. Bd3 h6 10. Bf4 Nh5 11. Bg3 Nxg3 12. hxg3 Qa5 13. Nd2 e5 14. Nb3 Qb4 15.
a3 Qd6 16. Nb5 Qb6 17. Nc7 Rb8 18. Nxd5 Qe6 19. Nc7 Qe7 20. d5 e4 21. Bb1 Bxb2
22. Rc4 Nf6 23. d6 Qe5 24. Rxh6 Bg4 25. Qc2 Qxd6 26. Qxb2 *
Position (FEN): 1r3rk1/ppN2p2/3q1npR/8/2R1p1b1/PN2P1P1/1Q3PP1/1B2K3 b - - 0 26
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 731
Best move: Qd1#