The Tetraforce is a name given to the Triforce by those who believe in a four-piece Triforce instead of three. This idea is now known not to be canon, but it has had considerable influence in the Zelda fandom. Nintendo has only confirmed the existence of three pieces of Triforce in the games. According to Hyrule Historia, the goddesses left behind "three golden triangles." A fourth triangle is never mentioned.[1] It is suspected Nintendo deconfirmed the Tetraforce by altering the Hylian…