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Extreme Sudoku is the most challenging version of the 9x9 grid puzzle game for the real puzzle masters! It's not just about following the basic rules - you've got to be a puzzle-solving expert and use advanced strategies to crack it.
- Hard
Play hard level Sudoku online on Sudoku.com. Our daily...
- Hard
Expert level Sudoku. Expert Sudoku is a game for experienced Sudoku players with a very high level of difficulty. This hardest Sudoku puzzle is characterized by the fact that only a few numbers are shown in the Sudoku square, which consists of 9 small squares, where the cells are located 3x3.
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 hard level Sudoku online on Sudoku.com. Our daily difficult web sudoku puzzles are suitable for people, who possess an excellent knowledge of sudoku game and know how to build a proper strategy to get a right solution in short terms.
Play unlimited sudoku puzzles online. Five very difficult levels from Evil to Extreme. Each puzzle has a unique solution and can be solved with pure logic.
Play free expert web sudoku puzzles online at Sudoku-Guru.com. The Expert Sudoku levels are extremely hard, can be solved by professionals, who possess an excellent knowledge of game and are aware of all the techniques!
Try to solve the all-mighty Evil web Sudoku, also known as Killer Sudoku or Very Hard sudoku. It's a High quality extremely difficult Sudoku Puzzle that is daily curated Just for the best of the best!
