Underground
(Published on 1. October 2026, 08:00 by Kaktuslav)
Link to SudokuPad: https://sudokupad.app/fqm0d8zkws
Rules: Normal 6×6 sudoku rules apply.
Invisible region sum lines: The numbers outside the grid give the lengths of straight lines that must be placed in the corresponding rows and columns. Each line occupies the indicated number of consecutive cells and must cross at least one box border. Box borders divide each line into segments with equal sums.
Invisible region sum lines: The numbers outside the grid give the lengths of straight lines that must be placed in the corresponding rows and columns. Each line occupies the indicated number of consecutive cells and must cross at least one box border. Box borders divide each line into segments with equal sums.
Solution code: All digits in cells belonging to two lines (in normal reading order)
Last changed on -
Solved by Luaryo, marcmees, antiknight, Fool on Hill, mihel111, Lozzo, zeniko, damo_89, drbs, Franjo, brskri, Jesper, sze, cvil, PluckyVillain, Major314, Mr. Happy, Exigus, Krisonium, kasperd, uhu170, TheShubhi, emoney1374, zlotnleo, Crusader175, widjo, Dr Hans, carsten
Comments
on 5. October 2026, 16:17 by emoney1374
Very cool puzzle!
on 2. October 2026, 11:00 by Major314
Beautiful puzzle ! Figuring out the implications of the rules is fascinating and very fun !
on 1. October 2026, 16:09 by Franjo
Thank you very much for creating and sharing another lovely and unusual puzzle.
