Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. Nc3 Be6 4. h3 Nf6 5. d3 Be7 6. Bg5 Nc6 7. a3 Nd7 8. Bxe7
Nxe7 9. d4 exd4 10. Nxd4 c5 11. Nxe6 fxe6 12. Bb5 a6 13. Ba4 b5 14. Nxb5 *
Position (FEN): r2qk2r/3nn1pp/p2pp3/1Np5/B3P3/P6P/1PP2PP1/R2QK2R b KQkq - 0 14
Black to move.
Themes:  Middlegame  
Puzzle rating: 1307
Best move: axb5