(Eingestellt am 10. September 2020, 21:33 Uhr von Genomico)

This is one large puzzle, consisting of four different variants of 6x6 sudokus, which are all linked together by numbers in grey circles.
A number in a grey cell is the sum of the outside clues for the adjacent puzzles. Digits used for this sum may not repeat.

Normal 6x6 sudoku rules apply to all sudokus, so every row column and region must contain the digits 1 to 6.

Edge sum: Clues outside the grid indicate the sum of the first two digits in the corresponding direction.
Sandwich sum: Clues outside the grid indicate the sum of the digit(s) placed between 1 and 6 in the corresponding row or column.
Grey cells sum: Clues outside the grid indicate the sum of the digit(s) in the grey cell(s) in the corresponding row or column.
Next-to-6 sum Sudoku: Clues outside the grid indicate the sum of all direct neighbours of the digit 6 in the respective row or column.

A number in a grey cell is the sum of the outside clues for the adjacent puzzles and digits used for this sum may not repeat.
For example: When 10 is in the grey circle between the Edge sum and Sandwich sum sudokus and the digits 2 and 3 are between the 1 and 6 in the Sandwich sudoku, then 2 and 3 may not occur in the first two cells in the corresponding direction of the Edge sum sudoku and therefor those cells must contain 1 and 4.

The puzzle is also available on Penpa.

I think the logic and the interaction between the puzzles are really nice. I hope you like it as well. If you struggle finding the logic of this puzzle, find some hints here. But try it yourself first of course ;) Enjoy solving! :)

Lösungscode: The fourth row of the Edge sum sudoku; followed by the fourth row of the Sandwich; followed by the second row of the Grey cells sum; followed by the second row of the Next-to-6 sum (24 digits in total).

Zuletzt geändert am 19. Oktober 2021, 21:15 Uhr

Gelöst von Jesper, Greg, MagnusJosefsson, clover, dBass, NikolaZ, Narayana, marcmees, Hareeb, wenchang, polar, bosjo, skywalker, Isa, Debrutsid, kishy72, adam001, samuella, Mody, zorant, DamnedLight, ManuH, ... Uhu, ffricke, Zzzyxas, FzFeather, kyled103, tinounou, ch1983, Jaych, sudocolor, moss, April, ibag, DiMono, Mark Sweep, darksida, Felis_Timon, Vebby, ParaNox, misko, Leodekri, h5663454, godoffours
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### Kommentare

am 25. September 2020, 03:47 Uhr von bob
Very fun combination. I look forward to the next one. And thanks also for the gentle optional starting hint. It helped start the proper type of thinking for me.

am 15. September 2020, 08:31 Uhr von Mody
Absolut toll, wie alle vier Sudokus ineinander gegriffen haben

am 11. September 2020, 14:02 Uhr von marcmees
thanks for the nice combi.

Zuletzt geändert am 11. September 2020, 20:54 Uhr

am 11. September 2020, 07:04 Uhr von Narayana
Even the grey cells are thematic as there is an S for sum in the middle and 4 dominos in the corners representing the 4 sudokus. :D

Reply: :D The 'S' for Sum Sudoku was indeed intended, but I didn't think of the S(um) being in the middle of 4 sudokus. Thank you for seeing it like that :D

am 10. September 2020, 23:48 Uhr von MagnusJosefsson
Very nice and pleasant puzzle.

am 10. September 2020, 23:01 Uhr von Greg
Good fun.

am 10. September 2020, 22:44 Uhr von Jesper
I agree - very nice interaction between the puzzles

 Schwierigkeit: Bewertung: 97 % Gelöst: 51 mal Beobachtet: 4 mal ID: 0004B0

Lösungscode: