Chess puzzle (Checkmate)
Opening: French_Defense, French_Defense_Other_variations
Moves: 1. e4 e6 2. h4 d5 3. exd5 exd5 4. Nf3 Nf6 5. d4 Bd6 6. Bg5 O-O 7. Nc3 h6 8.
Bxf6 Qxf6 9. Qd2 c6 10. Bd3 Bb4 11. O-O-O a5 12. Ne5 a4 13. a3 Bd6 14. f4 b5
15. g4 b4 16. Ne2 bxa3 17. g5 a2 18. gxf6 *
Position (FEN): rnb2rk1/5pp1/2pb1P1p/3pN3/p2P1P1P/3B4/pPPQN3/2KR3R b - - 0 18
Black to move.
Themes: Advanced Pawn Middlegame Mate in 1 Promotion
Puzzle rating: 1439
Best move: a1=Q#