Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. e4 c5 2. c3 e6 3. d4 d5 4. e5 cxd4 5. cxd4 Nc6 6. Nf3 Bd7 7. Bd3 Qb6 8. O-O
Nxd4 9. Nxd4 Qxd4 10. Re1 Qb6 11. Qg4 Ne7 12. Nc3 Ng6 13. a3 Bc5 14. Re2 Bd4
15. Nxd5 *
Position (FEN): r3k2r/pp1b1ppp/1q2p1n1/3NP3/3b2Q1/P2B4/1P2RPPP/R1B3K1 b kq - 0 15
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1500
Best move: exd5