Chess Opening Theory/1. f3/1...e5/2. g4

2. g4??
This move is a blunder (as can be seen by the ??), as it allows Black to immediately checkmate with 2...Qh4#. This is known as Fool's Mate. It is the fastest possible checkmate in a chess game.

Popular Moves
2...Qh4# 34%. 2...d5 24%. 2...Nc6 15%. 2...Bc5 8%. All other moves ~15%.