Chess puzzle (Crushing)
Opening: Modern_Defense, Modern_Defense_Other_variations
Moves: 1. d4 g6 2. Bf4 c6 3. Nf3 Qb6 4. Nc3 Qxb2 5. Na4 Qa3 6. c3 d6 *
Position (FEN): rnb1kbnr/pp2pp1p/2pp2p1/8/N2P1B2/q1P2N2/P3PPPP/R2QKB1R w KQkq - 0 7
White to move.
Themes:  Opening  
Puzzle rating: 1666
Best move: Bc1