Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. Nc3 Bg4 8. Ne5
Be6 9. Qb3 Qb6 10. Qc2 Nbd7 11. Nxd7 Nxd7 12. cxd5 cxd5 13. Nxd5 Bxd5 14. Bxd5
e6 15. Bg2 Bxd4 16. Bh6 Rfc8 17. Qd2 Rc7 18. Rac1 Rac8 19. Rxc7 Rxc7 20. b3 a5
21. e3 Bc3 22. Qd3 Ne5 *
Position (FEN): 6k1/1pr2p1p/1q2p1pB/p3n3/8/1PbQP1P1/P4PBP/5RK1 w - - 3 23
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 589
Best move: Qd8#