Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. d4 e6 2. e4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Nge7 6. Bg5 h6 7. Bh4 Qc7 8. Be2
Nf5 9. O-O Nxh4 10. Nxh4 cxd4 11. cxd4 Be7 12. Nf3 Bd7 13. a3 a5 14. Nc3 Na7
15. Rc1 Rc8 16. Nb5 *
Position (FEN): 2r1k2r/npqbbpp1/4p2p/pN1pP3/3P4/P4N2/1P2BPPP/2RQ1RK1 b k - 5 16
Black to move.
Themes:  Middlegame  
Puzzle rating: 1520
Best move: Qxc1