Sudoku

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 (cried "boxes", "blocks", or "regions" an aw) conteens aw o the deegits frae 1 tae 9.

A typical Sudoku puzzle

An its solution

References

1. Grossman, Lev (11 Mairch 2013). "The Answer Men". Time. Archived frae the original on 16 August 2013. Retrieved 4 Mairch 2013.(registration needit)
2. Arnoldy, Ben. "Sudoku Strategies". The Home Forum. The Christian Science Monitor.
3. Schaschek, Sarah (22 Mairch 2006). "Sudoku champ's surprise victory". The Prague Post. Archived frae the original on 13 August 2006. Retrieved 18 Februar 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.