Rules are as follows:
1) Standard sudoku rules apply for rows and columns but not for blocks defined by solid line around a coloured area.
2) Each solid block must add up to a value X and all blocks of the same colour must add up to the same value X.
3) The sum value may be different for each colour.
4) It's possible for a number to be repeated in a block, as long as it doesn't appear more than once in any row or column.
A completed puzzle
Here is a completed puzzle, where pink pieces add up to 11 and blue pieces add up to 10:
2 comments:
it would be good to have an online tutorial, because I can't do them without the X number
OK, see here for a step-by-step walkthrough....
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