Chess puzzle (Advantage)
Opening: London_System, London_System_Other_variations
Moves: 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Nbd2 O-O 6. Bd3 Nc6 7. c3 e5 8. dxe5
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Position (FEN): r1bq1rk1/ppp2pbp/2np1np1/4P3/5B2/2PBPN2/PP1N1PPP/R2QK2R b KQ - 0 8
Black to move.
Themes:  Opening  
Puzzle rating: 941
Best move: dxe5