Overturn

Overturn is a two-player word game that blends vocabulary skills with strategic play, reminiscent of Othello but with a linguistic twist. Players take turns forming words by placing colored rings over letters on a modular board. If a player uses a letter already claimed by the opponent, they can flip the ring to their own color, effectively "overturning" control of that space. The game continues until all letters are used or no more words can be formed, and the player with the most rings in their color wins.

1993 Mensa Select