Normal Sudoku: Place each digit, 1-9, exactly once in each row, column, and 3x3 region.
Stubborn Fog: The grid is covered with fog. Placing a correct digit removes the fog from that cell.
Dutch whispers: Digits connected by an orange line must have a difference of at least 4.
Arrows: Digits on an arrow (thin grey line) sum to the value in the connected circle. (All arrow sums are a single digit number.)
Quadruples: Digits in a quadruple circle must appear in the four adjoining cells. (All quadruples contain four digits, arranged in ascending order from top-left to bottom right.)
Maximum: Yellow shaded maximum cells are greater than each orthogonally adjacent cell.
Solution code: Row 9, left to right.
on 13. April 2025, 17:50 by Myfyr MJ
Nice challenging puzzle.
on 13. April 2025, 17:20 by Myfyr MJ
Nice challenging puzzle.
on 13. April 2025, 17:07 by dingledork
Gorgeous puzzle. Easy without being trivial. Thanks!
on 13. April 2025, 12:36 by nunc
Thanks for this nice puzzle!
I have a suggestion for the naming of the rule, though: Somewhere else it is called "dense fog", which I like much more. Of couse you can do as you like.
on 13. April 2025, 04:26 by larmoejr
Thank you for the puzzle!
on 13. April 2025, 01:54 by ul-Rhymm
Changed challenge rating
on 12. April 2025, 23:34 by Tank
That was fun! I would say 2 stars for difficulty
on 12. April 2025, 23:31 by ul-Rhymm
Changed challenge rating
on 12. April 2025, 23:17 by Sralser
Agree 1-2.
on 12. April 2025, 23:13 by Sralser
Agree 1-2.
on 12. April 2025, 22:32 by kakstront
Break in was not trivial (mainly because I missed the quadruple constraint). Everything after is pretty easy. 1-2 stars for me
on 12. April 2025, 21:38 by ul-Rhymm
Fixed Link
on 12. April 2025, 20:03 by Azure
Bro where is the link?
Sometimes, I am a fool. /ul-rhymm
on 12. April 2025, 19:09 by Killer-Ly
A link to solve it?
Oops! Fixed! /ul-rhymm
on 12. April 2025, 19:07 by larmoejr
I can't seem to find a link to the puzzle.
Thanks for pointing this out! My mistake. . . /ul-rhymm
Please note: The German version of this page has changed. It is possible that this page does not contain the latest information.