e6 is the most common response, and a solid, though perhaps insipid move. It does leave the knight pinned, and play into white's plans, leaving e5 as a prime destination for white's knight. Black's will almost certainly have to play Be7 at some point too.

For explanation of theory tables, see theory table and for notation, see algebraic notation..

1. d4 Nf6 2. Nf3 d5 3. Bg5 e6

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• Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.