As a logic puzzle, Sudoku is also an excellent brain game. The goal of Sudoku is to fill a 9×9 grid with numbers so that each row, column and 3×3 section contain all of the digits between 1 and 9. For trickier puzzles, click Options to turn on pencil marks. After entering a number, check to see where else it has to go. Try adding numbers which already appear often in the Sudoku puzzle. Free reproductionĪll irregular dodecadokus offered on this site are created by and these puzzles can be reproduced free on condition that the link to appears on every reproduced page. Play Free Sudoku Now Sudoku is one of the most popular puzzle games of all time. Look for rows, columns and 3×3 boxes with just a few blanks remaining. However, the advantage of aymmetrical puzzles is that, having one less constraint, they allow the elaboration of more difficult problems. Indeed it is the puzzle that is symmetrical and not the solution. Work them online, or print and enjoy at your leisure. 12 by 12 sudoku are no more difficult but lots more fun. This is only esthetic and does not change the resolution mode of the grid. 12x12 sudoku (which I also call 'su dozen') work just like a regular sudoku puzzle - place the numbers such that each appears only once in each row, column, and box. Symmetrical and asymmetrical puzzlesĪ 12x12 jigsaw puzzle is symmetrical when the cells that compose it are arranged equally around the central square known as the center of symmetry.
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