In late November , a Finnish applied mathematician, Arto Inkala, claimed to have created the world's hardest Sudoku. "I called the puzzle AI Escargot, because it looks like a snail. Solving it is like an intellectual culinary pleasure. AI are my initials," he said. "Escargot demands those tackling it to consider eight casual Or you may play on our classic desktop version (desktop only, not for mobile devices). Play free online Sudoku puzzles on a newly designed Sudoku grid interface with various features. Learn Sudoku solving techniques through examples with our smart Sudoku solver. Blank grid let you play your own puzzles on our Easybrain. Expert Killer Sudoku is suitable for professionals who are aware of all sudoku tricks and techniques. [HOST] gives you the opportunity to solve killer sudoku for 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 Try this on any Sudoku to check whether it has a unique solution. Detailed help. Use Clear to empty the board before entering your own puzzle. Save will remember the current state of the board so you can Reload it again (even if you close your browser - you must allow cookies for this to work). Restart applies only to the example How to play. This is an example of a finished Samurai Sudoku puzzle. It consists of 5 inter-linked standard Sudoku grids. The four 3x3 regions that appear in two separate grids need to satisfy the rules for both grids at the same time. The best way to approach a Samurai Sudoku grid is to tackle each sub-Sudoku independently, How to Play Sudoku: Learn the rules of Sudoku and how to solve Sudoku puzzles. Start with this tutorial to solve any easy Sudoku puzzle and continue on to more advanced techniques. A standard Sudoku puzzle consists of a grid of 9 blocks. Each block contains 9 boxes arranged in 3 rows and 3 columns. Visit Live Sudoku to
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Co-authored by Eric McClure. Last Updated: July 29, Fact Checked. Sudokus are phenomenal brain teasers, but if you find yourself solving easier puzzles in a jiffy, you Sudoku 4x4 is a simplified version of the classic Sudoku, tailored especially for beginners and children due to its straightforwardness. The puzzle consists of a 4x4 grid, which is further divided into four 2x2 subgrids, referred to as "regions". Some cells are pre-filled with numbers, serving as clues to assist in solving The base case of a completely empty puzzle can be filled in with any completed puzzle's values, which is very easy. Adding one or two numbers still leaves an enormous number of possible solutions, so it's probably still quite easy to solve, you just have to find a completed solution with the few given numbers in the right
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Play the hardest unlimited free sudoku puzzles online. Choose one of five very difficult levels from Evil to Extreme for a real challenge. Each puzzle has a unique solution and Will Shortz has been the crossword puzzle editor of The New York Times since He is also the puzzlemaster on NPR's Weekend Edition Sunday and is founder and director of the annual American Crossword Puzzle Tournament. He has edited countless books of crossword puzzles, Sudoku, KenKen, and all Play our daily 16×16 Giant Sudoku! Thousands more printable puzzles in the archive! Register FREE. Login. Fantastic! You've completed this puzzle with a final score of. Register for a free account to track your progress and compete in our leaderboards! Register. Try another puzzle. View archive. Reset. Are you sure Sudoku puzzles come prefilled with numbers in some of the cells. They are ranked by a difficulty level which corresponds with how many numbers come pre-filled in the puzzle. Play extremely hard Sudoku puzzles on your desktop computer with keyboard and mouse. Expert Area - Extremely Hard Puzzles. Expert Area: More Extremely Difficult Sudoku Puzzles. Your Free Sudoku Puzzle: (L6: #) Auto. Undo. Redo. Restart. How to Solve. Check. New Puzzle. Or get this puzzle L6:# For those who dare to tackle the hardest Sudoku puzzles, mastering advanced techniques is essential. These include: Naked and Hidden Singles/Doubles/Triples: These techniques involve identifying instances where only one or a specific combination of numbers can occupy a cell based on existing