Chess puzzle (Advantage)
Opening: English_Opening, English_Opening_Mikenas-Carls_Variation
Moves: 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Ne4 6. Nf3 Be7 7. d4 O-O 8. Bd3
Bf5 9. Qc2 Nc6 10. Nxe4 *
Position (FEN): r2q1rk1/ppp1bppp/2n5/3pPb2/3PN3/3B1N2/PPQ2PPP/R1B1K2R b KQ - 0 10
Black to move.
Themes:  Opening  
Puzzle rating: 2121
Best move: Nb4