Tic-tac-toe variants - Wikiwand

Tic-tac-toe is an instance of an m,n,k-game, where two players alternate taking turns on an m×n board until one of them gets k in a row. Harary

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8 Tic-Tac-Toe Variations

3D tic-tac-toe - Wikipedia

10 Amazing Variations of Tic-Tac-Toe: From Classic to 3D!

Tic-Tac-Toe Variations

Playing Tic Tac Toe variations on checked paper Stock Vector

Pigpen cipher - Wikiwand

10 Amazing Variations of Tic-Tac-Toe: From Classic to 3D!

How Old Is Tic-Tac-Toe?

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