Normal Sudoku rules apply.
X-sum clues give the sum of the first X digits in its row or column, where X is the first digit in the direction from which the row or column is read.
Each clue in this puzzle is the X-sum starting from one or other end of its row or column, but you must determine which for each clue. If a row or column has two clues, they start at different ends.
Question marks (?) represent any digit from 0 to 9, but no clue may start 0.
Solution code: Row 3
on 24. June 2026, 13:04 by pmays123
This was a beautiful puzzle. Very clean solve. Thank you for sharing!
on 24. June 2026, 11:45 by EdTheAlchemist
Difficulty set to 3* after feedback
on 24. June 2026, 07:26 by Elliott810
Brilliant puzzle! I agree with snookerfan (and you), that this puzzle has at most 3* difficulty! Thank you:)
on 23. June 2026, 16:17 by Snookerfan
Fun and beautiful puzzle! A bit tricky, but my solve time fits a 2.5 star puzzle. Thanks
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Alchemist says: I originally rated it 3*, but upped it after feedback from testers!
on 23. June 2026, 13:20 by Piff
Very very nice!