Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 e6 5. Nf3 Bb4+ 6. Nc3 d5 7. e5 Qb6 8. Bd3
Nge7 9. O-O Nxd4 *
Position (FEN): r1b1k2r/pp2nppp/1q2p3/3pP3/1b1n4/2NB1N2/PP3PPP/R1BQ1RK1 w kq - 0 10
White to move.
Themes:  Opening  
Puzzle rating: 1632
Best move: Nxd4