Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 a6 5. Bd3 Nc6 6. Nge2 Nf6 7. Bf4 e5 8.
dxe5 Nxe5 9. O-O Bd7 10. Qe1 O-O-O 11. Rd1 Nxd3 12. Rxd3 Qb6 13. Na4 Bxa4 14.
Rxd8+ Kxd8 15. Qd2+ Kc8 16. Rd1 Bc5 17. Nc3 Bc6 18. Bg5 Qxb2 19. Rb1 Qa3 20.
Rb3 Rd8 21. Qf4 Qa5 22. Bxf6 Rd1+ 23. Nxd1 *
Position (FEN): 2k5/1pp2ppp/p1b2B2/q1b5/5Q2/1R6/P1P2PPP/3N2K1 b - - 0 23
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 822
Best move: Qe1#