Chess puzzle (Equality)
Moves: 1. d4 d5 2. c4 Nf6 3. Nc3 Bf5 4. Qb3 b6 5. cxd5 e6 6. Bg5 Be7 7. e4 *
Position (FEN): rn1qk2r/p1p1bppp/1p2pn2/3P1bB1/3PP3/1QN5/PP3PPP/R3KBNR b KQkq - 0 7
Black to move.
Themes:  Opening  
Puzzle rating: 1578
Best move: Nxe4