Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. Nc3 e5 3. e3 d5 4. d4 exd4 5. exd4 Bb4 6. a3 Bxc3+ 7. bxc3 O-O 8.
h3 Re8+ 9. Be3 dxc4 10. Bxc4 Nd5 11. Qb3 Be6 12. Qxb7 Nxe3 13. fxe3 Bxc4 14.
Qxa8 Qg5 15. O-O-O Qxe3+ 16. Kb2 Qf2+ 17. Kc1 Bb3 18. Rd2 Re1+ 19. Kb2 Qxd2+
20. Kxb3 Rb1+ 21. Kc4 Qa2+ 22. Kd3 Rd1+ 23. Ke3 Qe6+ 24. Kf2 Rd2+ 25. Kg3 Qg6+
26. Kh2 *
Position (FEN): Qn4k1/p1p2ppp/6q1/8/3P4/P1P4P/3r2PK/6NR b - - 12 26
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1683
Best move: Qd6#