GeneralChessKingThe only variant I know is the Alien Gambit. The only variant I know is the Alien Gambit.1
tpr4...h6 is playable, e.g.https://lichess.org/game/rTmAdA7q#8 4...h6 is playable, e.g. https://lichess.org/game/rTmAdA7q#8