Chess puzzle (Crushing)
Opening: Polish_Opening, Polish_Opening_Other_variations
Moves: 1. b4 d5 2. Bb2 e6 3. a3 a5 4. b5 b6 5. e3 Bd7 6. a4 Bd6 *
Position (FEN): rn1qk1nr/2pb1ppp/1p1bp3/pP1p4/P7/4P3/1BPP1PPP/RN1QKBNR w KQkq - 1 7
White to move.
Themes:  Opening  
Puzzle rating: 860
Best move: Bxg7