Place the digits 1-9 in every row, column and 3x3 box.
Box borders divide blue lines into segments each of which has the same sum. Different lines may have different sums.
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 4
on 31. March 2026, 00:42 by VitP
because this can be solved by beginners, with effort, using standard procedures, it should be level 2
on 28. March 2026, 20:28 by Franjo
Thank you very much for serving another delicious sandwich.
on 28. March 2026, 18:42 by Ragna
That was fun! Thank you. :-)
on 28. March 2026, 18:41 by Chaka
Great!