411 REFERENCE · Wikibooks
Chess Opening Theory/1. d4/1...f5/2. h4/2...Nf6/3. h5/3...h6
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Dutch Defence: Beaver claw declined
3...h6
This move is a mistake. The white squares on the black kingside are weakened. White gets a good square g6 for his knight.