7Sudoku.com is a website dedicated to providing free Sudoku puzzles online.
All puzzles may be played online using the flash based Sudoku player or downloaded and printed for solving in the traditional (and probably more comfortable) way using pencil and eraser.
On the first day of every month we publish a downloadable and printable 30 puzzle pack in PDF format. The puzzle pack is available for download until the following month, when the new monthly pack is published. At regular times, during the year, a bonus season special is published and is available for download for a few days. Puzzles are rated for difficulty in levels from 1 to 5 where level 1 represents the easiest puzzles and level 5 the most difficult. Icons are often used to describe the difficulty of puzzles as follows:
|1||Very easy||Puzzles that can be solved using very simple techniques.|
|2||Easy||Puzzles that can be solved using very simple techniques that may not be as apparent as in level 1 puzzles.|
|3||Medium||Moderate difficulty puzzles that may require the use of slightly more advanced techniques, such as naked pairs or naked triples.|
|4||Difficult||Difficult puzzles may require a moderate use of advanced techniques. The use of pencil marks may be necessary for puzzles rated at level 4.|
|5||Very difficult||These puzzles require the use of advanced techniques.|
All puzzles published on this website have only one solution that can be found by logic. 7Sudoku.com does not publish puzzles that require the use of trial and error.