Stackable Tic-Tac-Toe

A stackable version of Tic-Tac-Toe! Pieces that nest inside each other allow you to cancel your opponent's move by playing over top of them! A couple things I've found that add to the fun:An optional Spinner can be used to force you to play certain sized pieces (Can help avoid the strategy of everyone starting with the smallest token and moving up to the largest - no fun!)There is a 4x4 Grid option as well as the standard 3x3. (The 4x4 Grid usually requires twice the number of play token