Chess puzzle (Advantage)
Opening: English_Opening, English_Opening_Symmetrical_Variation
Moves: 1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 cxd4 5. Nxd4 e6 6. e4 e5 7. Nf5 d6 8. Bg5
Bxf5 9. exf5 Be7 10. Bd3 Nd4 11. O-O h6 12. Bh4 O-O 13. Nd5 *
Position (FEN): r2q1rk1/pp2bpp1/3p1n1p/3NpP2/2Pn3B/3B4/PP3PPP/R2Q1RK1 b - - 3 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 914
Best move: Nxd5