411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...d6/2. d4/2...Nf6/3. Nc3/3...g6/4. Bg5/4...Bg7/5. e5
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Pirc Defence
5. e5 · Pirc Defence
5. e5 might look premature, but it's not easy for Black to respond accurately over the board, and playing intuitively can lead to disaster.
Theory table
5...Nfd7 5...dxe5 5...Ng8
References