The puzzle's classic is a 9x9 grid, made up of 3x3 blocks. On the initial layout some cells already contain numbers, known as "givens". The goal is to fill in the empty cells with numbers (or symbols) in each, so that each column, row, and region contains the numbers 1-9 (or different symbols) only once. So, all numbers or symbols are single.
Nowadays, you can come across various grids - 4x4, 5x5, 6x6, 7x7, 8x8, 12x12, 16x16, 25x25. In addition to that, some unique variations emerged, such as:
A three-dimensional Sudoku puzzle invented by Dion Church and published in the Daily Telegraph in May 2005.
The 2005 U.S. Puzzle Championship includes a variant called Digital Number Place: rather than givens, most cells contain a partial given - a segment of a number, with the numbers drawn as if part of a seven-segment display.
Wei-Hwa Huang created a meta-Sudoku, where the object is to finish drawing the 5x5 grid's pentomino-region borders so as to leave a uniquely solvable puzzle with no identically-shaped regions.
Welcome to Absolutist gaming portal where you can get all free games downloads. Enjoy playing games for PC, Mac and Linux, than check our best free to try casual games. Choose from a range of shareware hidden object adventure games, seek-and-find, arcade and action games, time management and strategy games, match 3 and marble popper games, card and board games, educational kids games and puzzles.
There is no need to pay before you can play the game. You also have an opportunity to enable full version of any game you like. You can get the registration data or key for any other game at Absolutist. Click "Order" button and proceed with the payment. You won't find casual cracked games on this site, but we often have game discounts and daily deal offers.
Check our free online games collection. As it is completely free of charge you needn't pay to play the game or download it for your PC. Download our top mobile games for Android, iPhone and iPad. We also have games for other mobile platforms, including, Windows for Smartphone, Palm, Pocket PC, Symbian and Java.