Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Normal_Variation
Moves: 1. e4 e6 2. d4 g6 3. c4 Bg7 4. f4 Ne7 5. Nf3 b6 6. Nc3 Bb7 7. Bd2 O-O 8. Bd3 f5
9. e5 d5 10. O-O dxc4 11. Bxc4 Bxf3 12. Qxf3 Nbc6 13. Bxe6+ Kh8 14. Bb3 Nxd4
15. Qh3 *
Position (FEN): r2q1r1k/p1p1n1bp/1p4p1/4Pp2/3n1P2/1BN4Q/PP1B2PP/R4RK1 b - - 1 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 1615
Best move: Nxb3