Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Bd7 5. Bc4 Nf6 6. Be3 Nc6 7. Nge2 O-O-O
8. d5 Na5 9. b3 g6 10. Bxa7 Nxc4 11. bxc4 Qa6 12. Bd4 Qxc4 13. Bxf6 exf6 14.
O-O Bg7 15. a4 f5 16. Qd2 Bc6 17. Rab1 Bxd5 18. Qe3 Rhe8 19. Qa7 Bxc3 20. Nxc3
Qxc3 21. Rfd1 Qc6 22. c4 Bxg2 *
Position (FEN): 2krr3/Qpp2p1p/2q3p1/5p2/P1P5/8/5PbP/1R1R2K1 w - - 0 23
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1209
Best move: Qa8#