Chess puzzle (Checkmate)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. Nc3 Bg4 4. Be2 Bxf3 5. Bxf3 Nf6 6. d3 c6 7. Be3 d5 8.
exd5 cxd5 9. d4 e4 10. Be2 Qb6 11. Na4 Qb4+ 12. c3 Qa5 13. b4 Qc7 14. O-O a6
15. Rc1 h5 16. c4 Ng4 17. Bxg4 hxg4 18. Qxg4 *
Position (FEN): rn2kb1r/1pq2pp1/p7/3p4/NPPPp1Q1/4B3/P4PPP/2R2RK1 b kq - 0 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 591
Best move: Qxh2#