Sum Line: Box borders split blue lines into sections, and the digits on those sections must sum to the same value. If a line has multiple sections within a box, these sections are summed separately.
8-Blocks: Pairs of digits connected by a red block sum to 8.
We categorized this puzzle as Heartburn. For more information about our difficulty categories, please visit our website, Missing Deck Puzzles, where we publish a new puzzle each day.
Try the puzzle on the SudokuPad app by Sven Neumann.
Solution code: Row 4, left to right, 9 digits no spaces
on 5. June 2025, 03:56 by strangelyinsane
make more of these please!! so fun
on 17. April 2025, 21:38 by rhodri
Wonderful!
on 15. April 2025, 22:22 by Fra314
Outstanding. Gorgeous. Clever. Wow.
on 15. April 2025, 09:53 by Snookerfan
Brilliant puzzle! Thank you
on 15. April 2025, 05:22 by Elliott810
Beautiful puzzle! Thank you:)
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