Logic Masters Deutschland e.V.

Easy Peasy Sudoku Leftover (01) - Killer Kropki

(Published on 18. February 2026, 06:00 by Richard)

Making the Easy Peasy Advent Sudokus wasn't always easy for me, so I have a small pile of 11 leftovers. Some were too hard, others were equally hard, nice or interesting as the one in the Calendar.
But they are all too good to stay unused, so in the coming weeks there will be a leftover on Wednesday and Friday.
SVS will continue on March 27.

Killer Kropki
Apply classic sudoku rules.
A white dot between two dotted outlined regions indicates that the sums within those regions have a difference of one. A black dot between two such regions indicates that one of the sums is twice the other sum. When there is no dot between two regions, they cannot have sums that differ by one or are double. Digits may not be repeated in regions.

Solve online in
Sudokupad (no answer check)
Sudokupad (with answer check)
or Penpa+.

Solution code: Row 9

Last changed on -

Solved by mayiyang, rcg, cdwg2000, zuzanina, Piatato, MartinR, Gribba Bibba, marcmees, Statistica, Snookerfan, tuturitu, SKORP17, Marian, scushuaishuai, L00ping007, Nick Smirnov, Malakree, Crul, goodcity, ... KlausRG, Felis_Timon, geronimo92, swnlmd, Zzzyxas, NEWS, saturnic, Bazylizz, PixelPlucker, Kino, penny121, Shmartus, Lizzie, bpcobra96, ildiko, Uhu, ManuH, thintheboxking, Senjo, Narayana, pin7guin
Full list

Comments

on 23. February 2026, 19:40 by dzamie
Definitely easier than the "full version" the advent puzzle was based on, but definitely much harder than the advent puzzles.
Still, a lot of fun! I really enjoy this variant.

on 22. February 2026, 14:33 by Franjo
Thank you very much for creating and sharing another lovely puzzle. The negative constraint did a great job.

on 18. February 2026, 12:18 by Snookerfan
Beautiful, thanks!

on 18. February 2026, 11:55 by marcmees
Great logical flow, interesting till the very end. Thanks

on 18. February 2026, 08:54 by Piatato
Lovely!

Difficulty:3
Rating:95 %
Solved:77 times
Observed:3 times
ID:000RIO

Puzzle variant Online solving tool

Enter solution

Solution code:

Login