Extreme Sudoku 9x9

What is an Evil Sudoku?

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.

How to solve an expert-level Sudoku?

The Evil difficulty level can only be tackled by someone with experience in solving Sudoku. Your arsenal should include all Sudoku strategies and tricks, and the use of notes is mandatory. Here are several strategies for solving super-hard Sudoku:

• Single Candidate
• Unique Candidate
• Techniques for removing candidates Block and Column/Row Interaction
• Techniques for removing candidates Block/Block Interaction
• Naked Subset
• Hidden Subset
• X-Wing
• Swordfish
• Forcing Chain

How much time might be needed to solve an extremely difficult Sudoku?

Some internet users claim to solve very hard Sudokus in 20 minutes, while others may take 6.5 hours for the same puzzle. Everyone is different. It's crucial to note that time is not the main factor here. Understanding your actions, avoiding hints, and choosing the right digit for a cell are the key aspects.

Advantages of playing online Evil Sudoku:

1. Play Extreme Sudoku for free and without limitations.
2. A wide selection of very difficult Sudoku puzzles.
3. Test how sharp your mind is online.
4. Play Sudoku even offline.
5. Play web Sudoku without being tied to a specific time or place.