Galen Tatsuo Komatsu wrote: hi, Don't know if you know this, but since I don't readily see mention of it on your page, I'll assume no. Long before Tiger and I figure Gary Watson's "Flip", Parker Bros. released a handheld game called Merlin which featured 6 different games. (1979 is floating in my mind, but I'm not sure.) Tic-tac-toe, blackjack, mastermind, among others, one of which was a game called "Magic Square." Played on a 3x3 grid, it had a similar idea, though the affected squares were different: (O=button pressed, X=affected squares) OX: corner square XX: ::: XOX edge square ::: ::: :X: center square XOX :X: The objective was to light up all squares but the center (game started by putting up a random pattern.)