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Even Sumdoku
https://www.calcudoku.org/forum/viewtopic.php?f=20&t=1278
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Author:  quadrata  [ Thu Sep 10, 2020 5:59 pm ]
Post subject:  Even Sumdoku

Here's a sudoku I just made where the clues reveal the sums of the entries in adjacent cells. The catch is that the numbers are only given when that sum is even! A numberless dot tells you that the sum is odd without revealing what it is.

Solution, PDF, and more at: https://quadratablog.blogspot.com/2020/ ... udoku.html

Image

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