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This unbeatable 3D-printed tic-tac-toe computer uses zero electronics to ensure you never win

3D-printed mechanical Tic-Tac-Toe (XXO-Master) never loses; forces a draw or your defeat, no electronics. Uses edge-notched ...
Atlanta Journal-Constitution

Classic Tic Tac Toe game made from craft foam

Grab some sheets of your favorite colors of craft foam and whip up a Tic Tac Toe game for this weekend. It’ll keep the kids busy crafting in the afternoon and then the whole family can play in the ...