The Hammerschlag, also known as the Fried Fox Opening or Pork Chop Opening, arises after 1.f3 e5 2.Kf2. ECO code: A00.

Overview

This is one of the most eccentric and objectively worst possible opening sequences in chess. After the already dubious 1.f3, White plays the extraordinary 2.Kf2, voluntarily moving the king and forfeiting the right to castle. The name "Hammerschlag" is German for "hammer blow," while "Fried Fox" and "Pork Chop" are humorous American names reflecting the opening's unsound nature.

Strategic Themes & Plans

There is no sound strategic rationale for this opening. White has weakened the kingside with f3, lost castling rights with Kf2, and made no contribution to development or central control. Black should respond with any natural developing moves—...d5, ...Nf6, ...Bc5+, and rapid piece development will give Black a decisive advantage. The opening exists purely as a curiosity and occasional joke in casual games.