Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Other_variations
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bd6 4. Nc3 a6 5. Ba4 b5 6. Nxb5 *
Position (FEN): r1bqk1nr/2pp1ppp/p1nb4/1N2p3/B3P3/5N2/PPPP1PPP/R1BQK2R b KQkq - 0 6
Black to move.
Themes:  Opening  
Puzzle rating: 986
Best move: axb5