Team Sum Sudoku
(Published on 7. May 2024, 19:32 by Phistomefel)
- Normal Sudoku rules apply.
- Divide the digits from 1 to 9 into two teams such that every digit from 1 to 9 is in exactly one of the two teams.
- Thereby, the finished grid is divided into orthogonally connected areas which contain only digits from one team and are bounded by digits of the other team and/or the border of the grid. A number clue gives the sum of all the digits in such an area.
- Digits may repeat in such an area and the sum clues are in an arbitrary position within the area.
- Each area has at most one clue, but may also have none at all.
Apart from the 4x4 example you can also try a 6x6 example.
4x4 example
6x6 example
The actual puzzle is also available online in Penpa Plus and in the CtC App (Many thanks, Florian Wortmann!). Have fun solving!
Solution code: Last column
Comments
on 5. June 2024, 14:45 by Prutsbeest
Very very nice puzzle indeed! Very satisfying solve as well. Thank you!
on 15. May 2024, 11:55 by Piatato
Awesome puzzle, thanks!
on 14. May 2024, 02:58 by ViKingPrime
Such an incredibly fun idea, perfectly executed. This feels like a gift to the entire Sudoku community, can't wait to see what people do with this.
on 12. May 2024, 09:53 by Phistomefel
@RJBlarmo, MagnusJosefsson, Christounet: Thank you very much for the kind words, guys! I am glad that enjoyed the puzzle. (:
on 9. May 2024, 22:26 by Christounet
Great opening with a super original ruleset ! Thanks :)
on 8. May 2024, 21:11 by Phistomefel
Added CtC link and normal Sudoku rules.
on 8. May 2024, 18:13 by Florian Wortmann
@Phistomefel @henrypijames
There is a trick in penpa to make it work, so that you can highlight cells outside the grid in sudokupad:
Go to "Transform" and add a row/column outside the existing grid, then add a 1-cell killer cage in the rows/columns (in this case on the left/right of the very bottom row). Those cages are invisible in sudokupad but since you have placed a "clue" in that row, it now lets you highlight it :-)
--> https://sudokupad.app/0xjbifzcjx
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That is very good to know. Thanks a lot for the tip, Florian!
on 8. May 2024, 14:53 by henrypijames
SudokuPad: https://sudokupad.app/1ugqin1ay0
FYI, the SudokuPad importer by @MarkTekfan can very reliably convert Penpa+ puzzles into SudokuPad:
https://marktekfan.github.io/sudokupad-penpa-import/
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Thanks, Henry! Unfortunately, your link has the same issue as mine with marktekfan's importer: it is not possible to colour the digits outside of the grid. I tried a few constellations, but haven't found something that would allow me to do get a grid in Sudoku Pad where I can colour them.
on 8. May 2024, 11:48 by MagnusJosefsson
Wonderful puzzle, very enjoyable and fresh ruleset!
on 8. May 2024, 00:11 by RJBlarmo
Nice break-in idea! Very smooth solve throughout.
