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Solving and printing sudoku 9x9 puzzles online.
Solving and printing hexadoku 16X16 sudoku puzzles online.
PDF, Print and play irregular jigsaw 9x9 sudoku online.
PDF, print and play alphadoku 25x25 sudoku.
PDF, print and play Special Samurai Sudoku puzzles of 4 grids.
PDF and print jigsaw 12X12
PDF and print jigsaw 16X16.
Printable Samurai Sudoku puzzles of 5 grids.
Printable sudoku puzzles 4x4 for kids.
Sudoku solutions. Free Sudoku.

Sudoku, hexadoku and chaos sudoku solver online. helps you solve and play all the 9x9 and 16x16 sudoku puzzles that you set yourself, as well as many pre-set puzzles on the site.
You can also use this solver to help you create and check your own 9x9 and 16x16 sudoku puzzles...

The site also offers:

 • 80,000 free 9x9 irregular sudoku grids, called "chaos sudoku", to print, download in pdf format and play online.
 • 6,000 irregular jigsaw 16x16 sudoku puzzles to print and download in pdf.

 • 60,000 free sudoku puzzles of 25x25 squares to print, download in pdf format, and play online, called "alphadoku".

 • 60,000 free special samurai sudoku puzzles, made up of 4 interlaced 9x9 Sudokus, to print, download in pdf format and play online.

 • 60,000 free Samurai sudoku puzzles, made up of 5 interlaced 9x9 Sudokus, to print online.

 • Many 4x4 sudoku puzzles for kids to print.

What can our solvers do at once at your request?
 • View all the candidates marked for all the squares in the grid you are playing.
 • Solve a grid with the candidates entered by you or automatically.
 • Give you the full resolution of the grid in progress, specifying whether the solution is unique or not.
 • Solve the squares one by one.
 • Identify the next square to find.
 • Check the consistency and soundness of the grid project without giving you the solution.
 • Allow you to print your grid at any time
 • Save the grid in progress
 • Reload the grid and resume previously saved game.

The page General help summarizes the four basic methods for finding the solution for one square.

If you would like to receive advice on the Sudoku program, you can send us your question. The team of sudoku-puzzles-online will respond.

You can help us improve this site by sending us your comments or suggestions.

The team of sudoku-puzzles-online thank all Internet users who have sent their suggestions.

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