Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Kalashnikov_Variation
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 Be6 8.
Be3 Nf6 9. Nd5 Nxe4 *
Position (FEN): r2qkb1r/1p3ppp/p1npb3/3Np3/4n3/N3B3/PPP2PPP/R2QKB1R w KQkq - 0 10
White to move.
Themes:  Opening  
Puzzle rating: 1541
Best move: Bb6