Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Exchange_Variation
Moves: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Bd7 5. Bb5 c6 6. Bc4 b5 7. Bb3 c5 8. Nf5
c4 9. Nxd6+ Bxd6 10. Qxd6 cxb3 11. axb3 Ne7 12. O-O O-O 13. Bg5 Re8 14. Bxe7
Rxe7 15. Nc3 Re6 16. Qd5 b4 *
Position (FEN): rn1q2k1/p2b1ppp/4r3/3Q4/1p2P3/1PN5/1PP2PPP/R4RK1 w - - 0 17
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 836
Best move: Qxa8