Hexcite

Players begin by placing a geometric shape (triangle, hexagon, parallelogram, etc.) in the center hexagon. The CPU or human opponent then places another shape adjacent (and touching completely on one side) to a previously played piece. Players score bonus points for completing any full hexagon. Much of the strategy in this game is in tricking your opponent into letting you take a bonus. Bonuses are also scored for placing a piece so that two sides will contribute a score. The game is over when all pieces have been played, or if the remaining pieces cannot be played. In that case points are subtracted for any remaining pieces, based on the complexity of the shape (twice as many points are subtracted for a hexagon compared to a triangle).

In Japan, this game has seen several Windows versions, and even has been released as a board game.