411 REFERENCE · Wikibooks
Chess Opening Theory/1. f4/1...e5/2. fxe5/2...d6/3. exd6/3...Bxd6/4. Nf3/4...g5/5. h3
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Bird's Opening rd nd bd qd kd nd rd pd pd pd pd pd bd pd nl pl pl pl pl pl pl pl rl nl bl ql kl bl rl
5.h3??
This unfortunate move caused the loss of three white players in Lakdawala's database. While white has stopped g4, the price is far too high, he just allowed Bg3 mate!