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#Printable color sudoku pdf
#Printable color sudoku free

If you select 16×16 grid, you will fill empty square boxes in such a manner that every row and column as well as every 4×4 square box contains the numbers from 1 to 16.

To play this interactive game, you will need to fill empty spaces of a 16×16, 9×9 and 4×4 grid. They help sharpen mind and improve concentration skills. Puzzles like Sudoku help to keep our brain challenged and engaging.

#Printable color 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.Looking to improve your brain health? Studies suggest that solving puzzles are highly effective for brain functionality and improving memory.

#Printable color 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 :

Puzzles " Extreme" are solvable by " Inclusion", " Exclusion", Pairs exclusive" and " Multiple choices".

Puzzles " Expert" are solvable by " Inclusion", " Exclusion" and "Pairs exclusive".

Puzzles " Confirmed" are fully resolvable by " Inclusion" and " Exclusion" while admitting to other methods.

Puzzles " Beginner" are fully resolvable by " Inclusion" while accepting other methods.

Only the expert level requires you to pencil in the candidates if you cannot see the solution. The beginner and confirmed levels are solvable by logical deduction. It allows veterans of sudoku to find new visual configurations. Why play irregular sudoku? Irregular sudoku is a variation of sudoku. Also note that the aspect of difficulty is subjective, because different solving techniques suit different people. Indeed, the symmetrical ones have an additional constraint - precisely to be symmetrical - so they have fewer empty squares to solve. Choose a random puzzle:Ĭhoice of puzzles: Our irregular sudoku were designed and graded so that at the same level the higher the puzzle number, the more difficult the solution, with this nuance that in our classification, at equal levels and numbers, symmetrical puzzles are a little easier to solve than asymmetrical ones.