Ultimate Tic-Tac-Toe – Math with Bad Drawings

Once at a picnic, I saw mathematicians crowding around the last game I would have expected: Tic-tac-toe.

Ultimate Tic Tac Toe — Games for Young Minds

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Full article: Math Games With Bad Drawings: 75 Simple, Challenging

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Math Games with Bad Drawings by Ben Orlin — Kickstarter

Math Games with Bad Drawings by Ben Orlin — Kickstarter