Funny Sudoku Unlimited. Brain-twisting fun for all ages! Generate new puzzles on the fly. Funny Sudoku is a great activity to sharpen the mind.
Sudoku (数独, sūdoku, digit-single), originally called Number Place is a logic-based, combinatorial number-placement puzzle. In classic sudoku, the objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub grids that compose the grid (also called "boxes", "blocks", or "regions") contain all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a single solution.
