mathematicsoptimizationpuzzle
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I recently sent this killer sudoku to my dad and he managed to solve it fully before realising that one of his sums was off by one (think 7+7=13). All other rules and constraints were followed in his ...
mathematicsnumber-theorypuzzle
Science News
Solve the math puzzle from our April 2026 issue, where we plant floras to celebrate an upcoming nuptial.
mathematicspuzzle
Science News
Solve the math puzzle from our December 2025 issue, in which a holiday gift exchange occurs.
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