It is harder for our naked eye to work with the wiggly, irregular-shaped regions that replace the orderly 3×3 boxes in standard sudoku puzzles. These jigsaw-like shapes must also contain the numbers 1 to 9 exactly once. Why? Because instead of a 3×3 square/region, in jigsaw sudoku, you will see irregular jigsaw-like shapes. However, jigsaw sudoku online is generally trickier to solve than standard sudoku. Each row and column must contain numbers 1 to 9 exactly once.
JIGSAW SUDOKU FREE
Free reproductionĪll irregular jigsaw puzzles offered on this site are created by and these puzzles can be reproduced free on condition that a link to the web site appears on every reproduced page.In jigsaw sudoku, the rules are very simple, as the rules for standard sudoku still apply.
JIGSAW SUDOKU PDF
You can select pdf files in white, gray, hatched or colored. Our irregular jigsaw sudoku are downloadable through the menu 9X9 JIGSAW SUDOKU and the link Download pdf puzzles. You can select prints in white, gray, hatched or colored. Our irregular jigsaw sudoku are printable through the menu 9X9 JIGSAW SUDOKU and the link Print grids. However, the advantage of non-symmetrical 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. This is only esthetic and does not change the resolution mode of the grid. Symmetrical and asymmetrical puzzlesĪn irregular jigsaw puzzle is symmetrical when the squares that compose it are arranged equally around the central square known as the center of symmetry. Number of multiple choices in extreme asymmetrical puzzles :įrom 1 to 19 multiple choices are possible, in proportion with the puzzle number.Įxtreme asymmetrical puzzles with the highest numbers are the most difficult to be solved and just proposed as a "curiosity".įor more details on these techniques similar to those of regular sudoku, see: General help.
Number of multiple choices in extreme symmetrical puzzles :
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