Place the digits 1-9 in every row, column and 3x3 box.
Any run of two or three cells along green lines must each have a different remainder when divided by 3.
Clues outside the grid give the sum of all the digits between the 1 and 9 in that row or column.
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Solution code: digits in row 3
on 26. March 2026, 19:03 by Snookerfan
Fun puzzle! I expected this one to be the hardest because of the modular constraint, but it was the easiest actually. Thanks
on 25. March 2026, 02:29 by Crusader175
Fun puzzle!