Did you know that SUDOKU

The number of valid 9×9 Sudoku grids is:



The puzzle which players insert one to nine into a grid consisting of nine squares subdivided into a further nine smaller squares in such a way that every number appears once in each horizontal line, vertical line and square.


2 thoughts on “Did you know that SUDOKU”

  1. The world is built up of letters and numbers in the U.K. ALPHA bet its 0 – 9 and A – Z repeated multiple times and then the brain puts it in the order thats called life ….. the crossword was the prelude to developing sudoku or was it just like the chicken and the egg which came first ….


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