411 REFERENCE · Wikibooks
Custom Chess Theory/1.e4/1...e5/2.Ba6
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
2. Ba6?? — Blunder Gambit
After 1. e4 e5, White plays 2. Ba6??, completely blundering the bishop in two different ways.
2...bxa6 can win the bishop but cause doubled pawns.
2...Nxa6 can also win the bishop, also the best move.