Sudoku is an addictive logic puzzle that comes in varying levels of difficulty. The goal is to fill in all the squares in the 9x9 grid with digits in the range 1 - 9 inclusive. The placement of some digits has already been provided. The catch is that no digit may be repeated for every column, row, and 3x3 block. There are 9 such 3x3 blocks on the grid. We rate our puzzles according to the following scale: painless, simple, easy, medium, tough, grueling, and severe. Here we have combined art (the background image) and logic (the puzzle). Note that these puzzles may be solved using logic alone - no guessing. Enjoy!
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