Printable Mathrax Puzzles

How to Solve a Mathrax Puzzle

Each puzzle follows the basic rules of Sudoku: the numbers 1 through 9 must appear once (and once only) in each column and row. The circled numbers and relational symbols tell you arithmetic relationships between the diagonal squares touching each circle. If a circle says "8+" that means that both pairs of diagonal squares touching that circle each add up to 8. If a circle says "E" or "O" that means all touching squares are even or odd, respectively. Each Mathrax puzzle has only one unique solution, and each can be solved using pure logic and basic arithmetic. Good luck!

Small Mathrax

  2025-08-10    Small Mathrax #9EE8N64A
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  2025-08-09    Small Mathrax #Y846G8ET
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  2025-08-08    Small Mathrax #B7G6J52C
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  2025-08-07    Small Mathrax #F5E9B6Y2
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  2025-08-06    Small Mathrax #69T9AA7E
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  2025-08-05    Small Mathrax #S84K64UV
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Large Mathrax

  2025-08-10    Large Mathrax #9V379BCK
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  2025-08-09    Large Mathrax #U897L8RN
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  2025-08-08    Large Mathrax #FP423H2V
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  2025-08-07    Large Mathrax #42V3ENG3
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  2025-08-06    Large Mathrax #7ES67SX5
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  2025-08-05    Large Mathrax #6U62J7NG
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Mathrax Hints & Solutions

Stuck on a puzzle and need a hint? Or do you just want to check your solution to make sure it's correct? Either way, we've got you covered! Just find the unique puzzle id for the puzzle you're working on and enter it below to find the information you need.

Puzzle ID: