Chess puzzle (Advantage)
Opening: Scandinavian_Defense, Scandinavian_Defense_Modern_Variation
Moves: 1. e4 d5 2. exd5 Nf6 3. Bb5+ Nbd7 4. c4 g6 5. Nf3 Bg7 6. d4 O-O 7. Nc3 Nb6 8.
a4 a6 9. a5 *
Position (FEN): r1bq1rk1/1pp1ppbp/pn3np1/PB1P4/2PP4/2N2N2/1P3PPP/R1BQK2R b KQ - 0 9
Black to move.
Themes:  Opening  
Puzzle rating: 1262
Best move: axb5