Ichidoku [Ichimaga/Sudoku Hybrid, Region Sum Lines]
(Published on 29. September 2023, 18:45 by Malrog)
Rules
Normal sudoku rules apply.Ichimaga: Draw some lines in the grid that travel orthogonally through centers of cells. Each line must start and end in circles, and may not turn more than once. Different lines may not overlap or cross each other except being joined at circles, and all lines and circles must be connected together to form one network. The digit in each circle indicates how many lines are connected to it.
Region Sum Lines: Each line is a region sum line. Digits along the line (including the circles) sum to the same total in every sudoku box it visits, although some lines may stay entirely within one box.
Links
Penpa+ (answer check on numbers and lines)
SudokuPad (answer check on numbers only)
Solution code: The digits NOT on lines or circles in row 8, reading left to right.
Comments
on 16. August 2024, 10:09 by Qodec
I can't believe you pulled this off. Straight into my favourites!
on 15. August 2024, 21:00 by cybers
Great fun, super well designed :)
on 15. August 2024, 20:12 by Fool on Hill
Really nice puzzle - had to keep my wits about me with the combination of clues: some really neat interactions there.
on 15. August 2024, 16:16 by SamuPiano
I definitely believe this took 8 months! This is a miraculous construction.
Take a bow!
on 8. November 2023, 00:41 by Myxo
Wonderful puzzle! Really loved it :)
on 29. September 2023, 18:59 by yttrio
It was really fun being able to be an initial tester for this puzzle. It was quite astonishing that this rule set could have a unique and logical solution using only circles for clues! Definitely a tricky puzzle, but well worth the effort to solve.
