BFOIT - Introduction to Computer Programming

Sudoku in jLogo

Sudoku Applet

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"Sudoku ... is a logic-based, combinatorial, number-placement puzzle. The objective is to fill a 9-by-9 grid with digits so that each column, each row, and each of the nine 3-by-3 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-squares") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a unique solution.
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http://en.wikipedia.org/wiki/Sudoku

Visit the WikipediA entry for an introduction to Sudoku puzzles.