Play Sudoku The Numbers Game – Like Real Estate Investing
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”, “regions”, or “sub-squares”) contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which typically has a unique solution.
Click:
- Game
- New
- Easy – Medium – or Hard
Click the other tabs: Keyboard etc to set your game
[WPSCPL_CODES-1] From Wikipedia, the free encyclopedia Not to be confused with Sodoku or Sudeki.
A typical Sudoku puzzle
The same puzzle with solution numbers marked in red
Sudoku (数独 sūdoku?, すうどく) i/suːˈdoʊkuː/ soo-DOH-koo, originally called Number Place,[1] is a logic-based,[2][3] combinatorial[4] number-placement puzzle.
Completed puzzles are always a type of Latin square with an additional constraint on the contents of individual regions. For example, the same single integer may not appear twice in the same 9×9 playing board row or column or in any of the nine 3×3 subregions of the 9×9 playing board.[5]
The puzzle was popularized in 1986 by the Japanese puzzle company Nikoli, under the name Sudoku, meaning single number.[6] It became an international hit in 2005.[7]