Chess puzzle (Advantage)
Opening: Modern_Defense, Modern_Defense_Other_variations
Moves: 1. e4 g6 2. Nf3 Bg7 3. d4 a6 4. Bc4 b5 5. Bb3 Bb7 6. d5 c6 7. c3 cxd5 8. Bxd5
Nc6 9. O-O Nf6 10. Bg5 O-O 11. Ne5 Qc7 12. Bf4 *
Position (FEN): r4rk1/1bqpppbp/p1n2np1/1p1BN3/4PB2/2P5/PP3PPP/RN1Q1RK1 b - - 8 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 1556
Best move: Nxd5