Chess puzzle (Crushing)
Opening: Indian_Defense, Indian_Defense_Other_variations
Moves: 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Bd3 O-O 5. Nf3 d6 6. Nbd2 Re8 7. Qe2 Nc6 8.
O-O-O e5 9. dxe5 dxe5 10. Be4 *
Position (FEN): r1bqr1k1/ppp2pbp/2n2np1/4p3/4BB2/4PN2/PPPNQPPP/2KR3R b - - 1 10
Black to move.
Themes:  Middlegame  
Puzzle rating: 1607
Best move: exf4