Welcome to the free impossible sudoku games by the Los Angeles Times. Fill in each square with a number, making sure no number repeats in each column or row. Check back every Sunday for a new...

Play impossible Sudoku Puzzles online for free. Hardest level puzzles for pro players. Play them and challenge yourself.

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.

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.

This difficult sudoku board was designed to challenge even the most experienced sudoku solvers and is considered by many to be the world's most difficult sudoku puzzle. It requires a high level of logic and deduction skills to solve, and only a few people in the world have been able to …

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 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.

Evil sudoku is a master game level for experienced players and sudoku fans. Play evil sudoku online on Sudoku.com website to train your brain and have fun!

Evil sudoku is only for experienced sudoku solvers. It is extremely difficult. Be prepared that your head very tormented. Find out if you correctly solved the puzzle after pressing the the button "Check". Incorrectly filled fields are marked red.

Truly challenging Sudoku is a Sudoku puzzle with very few initially filled cells (22 in total). At the initial stage, each digit can appear a maximum of 3 times. If you solve the Evil Sudoku without errors, you can earn 1003 points to your score.