The secret pattern which could help you solve your daily Sudoku faster
But even the most dedicated Sudoku-solver might have never spotted this ... A Sudoku is a puzzle involving a 9x9 grid into ...
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The number of solutions you could fit into your weekend Sudoku is mind-boggling
A Sudoku puzzle consists of a 9x9 grid of squares ... and it's up to the solver to figure out how to fill in the rest of the squares to get to that end state. Mathematicians love counting things.