Chess puzzle (Advantage)
Opening: English_Opening, English_Opening_Four_Knights_System
Moves: 1. e4 e5 2. Nf3 Nc6 3. c4 Nf6 4. Nc3 Bc5 5. d3 O-O 6. Bg5 Nd4 7. Nxd4 exd4 8.
Nd5 Be7 9. e5 *
Position (FEN): r1bq1rk1/ppppbppp/5n2/3NP1B1/2Pp4/3P4/PP3PPP/R2QKB1R b KQ - 0 9
Black to move.
Themes:  Opening  
Puzzle rating: 1089
Best move: Nxd5