Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Wing_Gambit
Moves: 1. e4 c5 2. b4 cxb4 3. Nf3 d6 4. Bb2 Nc6 5. a3 Nf6 6. axb4 Nxb4 7. Ra4 Qb6 *
Position (FEN): r1b1kb1r/pp2pppp/1q1p1n2/8/Rn2P3/5N2/1BPP1PPP/1N1QKB1R w Kkq - 2 8
White to move.
Themes:  Opening  
Puzzle rating: 1728
Best move: Bd4