Place the digits 1-9 in every row, column and 3x3 box.
Grey lines can be split into one or more non-overlapping sections each of which sum to 10.
Clues outside the grid give the sum of all the digits between the 1 and 9 in that row or column.
If you enjoyed this puzzle you might want to look at one of these similar puzzles:
Solution code: Digits in the top row
today, 11:55 by marcmees
Very nice but may loose my appetite due to oversupply.
today, 05:42 by Elliott810
Beautiful puzzle! Thank you:)
yesterday, 16:50 by phil_the
corrected puzzle link
yesterday, 15:34 by ddefalbe
The link is to your Modular Sandwhich :)
(phil)oops! thank-you - now corrected