Chess on the Loose

From BoardGameGeek:

Four games in one, this is no ordinary chess set. Take Chess to a whole new level! Add a new challenge to your game by adding the Frankencheck monster to the board in Frankencheck. Dig for treasures and uncover special points in Treasure Chessed. Or win UFO Spell Check by collecting letters, spell words, and add bonus words to the board. You may never want to play chess the same again!