They obviously sharpen numerical skills, but they also train concentration and visual perception. Some of them are available free-to-play on this site, including KenKen (also known as MathDoku), LadyBird Logic, and Kakuro. If you enjoy playing Sudoku, there's a whole world of number puzzles you might enjoy. Sometimes I prefer to solve Sudoku on paper, simply because it can be easier to make notations in the margins.īut as you can see, at least one of the online free sudoku games above (247 Sudoku) has a note-taking feature that closely replicates this ability. The few numbers pre-filled, the more difficult it is to figure out the remaining numbers. The difference is simply the number of pre-filled numbers in the 9 x 9 grid. I've made 100 free Sudoku puzzles you can print out anytime. If you'd prefer to solve Sudoku on paper, I've got just the thing. To open the game, click the Small, Medium, or Large link under the picture of the Sudoku game on that page. This opens the game page for that particular Sudoku game. Click the picture of game or the Play Now link in the description. List of Free Sudoku Gamesįollowing are the Sudoku games. The goal is to fill the rest of the 9x9 grid with single-digit numbers 1 through 9 with the following basic restrictions: A number can only be used once in each row, column, and 3x3 cell. Other cells contain a single digit, 1 through 9, already pre-filled in. Moreover, many governments encourage people to play Sudoku because the game is considered to have a significant role in preventing age-related diseases (especially Alzheimers). You'll see that many of the cells in the grid are blank. In recent years, Sudokus incredible rise in popularity and rapid introduction in international newspapers have made it the favorite puzzle game of the 21st century. The grid is subdivided into nine 3 x 3 sections. In standard Sudoku, you're presented with a 9 x 9 grid. ![]() For detailed instructions, including advanced techniques, visit the Sudoku Instructions page. ![]() The basic rules of Sudoku (see below) are fairly easy to understand. Note: Want to print out sudoku to solve with pen or pencil? See my 100 Free Printable Sudoku Puzzles page. It's easy to learn, but that's not to say solving it is easy. These free online Sudoku games are available to play anytime, no registration required.
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