Chess puzzle (Advantage)
Opening: English_Opening, English_Opening_Great_Snake_Variation
Moves: 1. c4 g6 2. h4 c5 3. h5 Nc6 4. d3 Bg7 5. h6 Bf6 6. Nc3 Qb6 7. Rb1 *
Position (FEN): r1b1k1nr/pp1ppp1p/1qn2bpP/2p5/2P5/2NP4/PP2PPP1/1RBQKBNR b Kkq - 4 7
Black to move.
Themes:  Opening  
Puzzle rating: 1013
Best move: Bxc3+