Chess puzzle (Advantage)
Opening: Modern_Defense, Modern_Defense_Other_variations
Moves: 1. d4 g6 2. Bg5 Bg7 3. e4 h6 4. Bh4 d6 5. Bc4 Nd7 6. Ne2 c5 7. c3 a6 *
Position (FEN): r1bqk1nr/1p1nppb1/p2p2pp/2p5/2BPP2B/2P5/PP2NPPP/RN1QK2R w KQkq - 0 8
White to move.
Themes:  Opening  
Puzzle rating: 1129
Best move: Qb3