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Play free online Sudoku puzzles on our featured Sudoku game interface. Learn Sudoku solving techniques through numerous examples with our smart Sudoku solver. Our online blank grid lets you play your own puzzles on our Sudoku game interface.
Play free online (extremely hard) Sudoku puzzles on our featured Sudoku game interface. You can fill in candidates, highlight cells, undo or redo steps, check mistakes, and more, so that you can apply the logic to solve the puzzles more conveniently.
Play free online (intermediate) Sudoku puzzles on our featured Sudoku game interface. You can fill in candidates, highlight cells, undo or redo steps, check mistakes, and more.
This online Sudoku solver is unique on the web. It not only gives the solution to each valid Sudoku puzzle instantly, but also explains the techniques and logic behind each step and how the digit to be filled in each empty cell is determined.
Blank grid - Play your own Sudoku puzzles on our online Sudoku game interface with various features such as pencil marks, one key filling all candidates, background highlights, undo/redo functions and more.
Classic Desktop Version - Play free online Sudoku puzzles with keyboard and mouse. Interface is featured with pencil marks, background highlights, undo-redo functions and more.
Play extremely hard Sudoku puzzles on your desktop computer with keyboard and mouse.
Classic Desktop Version - Play free online Sudoku puzzles (intermediate) with keyboard and mouse. Interface is featured with pencil marks, background highlights, undo-redo functions and more.
Every day, our Daily Sudoku page gives you a completely new Sudoku puzzle for each difficulty level. You can make a plan to give your brain a free daily workout. Printable Daily Sudoku Puzzle. A printable version of this daily Sudoku puzzle is also available online.
Play free online (very hard) Sudoku puzzles on our featured Sudoku game interface. You can fill in candidates, highlight cells, undo or redo steps, check mistakes, and more.
