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with deeply laser-engraved numbers
-Every 2 x 2 block of cells (including wrap-around) sum to 2T (where T= n x n + 1) or in this case T =65 and 2T = 130
larger version of the classic game
and anyone who enjoys a good mental challenge
5" square and easy to manipulate
Perfect 10 Wooden Brain Teaser - Math & Logic Puzzle teenager gift with deeply laser-engraved numbersChallenge your mind with the Perfect 10 Wooden Brain Teaser! This handcrafted math and logic puzzle is designed to test your problem solving skills in a fun and interactive way. How to Play Arrange the nine wooden pieces so that each set of adjacent numbers adds to 10. A simple concept, yet surprisingly tricky! Why Youll Love This Puzzle STEM Learning Fun A great way to develop critical thinking, logic, and math skills. Perfect Gift for Puzzle Lovers
