Sudoku

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A teepical Sudoku puzzle, wi nine raws an nine columns that intersect at square spaces. Some o the cells are filled wi a nummer; ithers are blank cells tae be solved.
A typical Sudoku puzzle
The previous puzzle, shawin its solution.
An its solution

Sudoku (数独, sūdoku, digit-single) (oreeginally cried Nummer Place)[1] is a logic-based,[2][3] combinatorial[4] nummer-placement puzzle. The objective is tae fill a 9×9 grid wi deegits sae that each column, ilk raw, an each o the nine 3×3 subgrids that compone the grid (an aa cried "boxes", "blocks", or "regions") conteens aw o the deegits frae 1 tae 9.

References[eedit | eedit soorce]

  1. Grossman, Lev (March 11, 2013). "The Answer Men". Time. Retrieved March 4, 2013. (registration needit)
  2. Arnoldy, Ben. "Sudoku Strategies". The Home Forum. The Christian Science Monitor. 
  3. Schaschek, Sarah (March 22, 2006). "Sudoku champ's surprise victory". The Prague Post. Archived frae the oreeginal on August 13, 2006. Retrieved February 18, 2009. 
  4. Lawler, E. L. (1985). The Traveling Salesman Problem: A Guided Tour of Combinatorial Optimization. West Sussex: John Wiley & Sons. ISBN 0-471-90413-9.