Disgroup Joints
(Published on 10. November 2025, 17:15 by SennyK)
If you will have hard time solving it, turn on the conflict checker, should make it much easier :-)
I hope you will enjoy and I would be really grateful for all the comments and ratings.
Normal sudoku rules apply.
Diagonal: Digits along the marked diagonals must not repeat.
Antiknight: Identical digits cannot appear in cells a chess knight’s move apart.
Disjoint groups: Cells with the same position within the boxes must contain all the digits 1 to 9 (i.e., identical digits cannot appear within the same position in two different boxes, given digits help to understand this rule).
Kropki dots: Digits in cells joined by a black dot are in a 1:2 ratio (i.e., one digit will be double the other). Not all dots are given.
If you liked this puzzle, I recommend trying out my other puzzles: The Erica Series:★☆☆☆☆: 1, 2, 4, 5, 6, 12, 15, 17, 23, 26, 27
★★☆☆☆: 3, 7, 8, 10, 11, 13, 14, 16, 18, 20, 24, 25
★★★☆☆: 9, 19, 21, 22 Shading/Ying-Yang:
★★☆☆☆: Pretty Odd Shaded Area
★★★☆☆: (+5)-Yang, Negative 8 YY
★★★★★: Why-Why? Fog of War:
★☆☆☆☆: Erica 12, Erica 17
★★☆☆☆: It's What You Do in the Dark That Puts You in the Light, Find It All, What the Fog?, Erica 20
★★★☆☆: Broken Flashlight in the Dark Pencil Puzzle/Sudoku Hybrid:
★★☆☆☆: Masyu (Short) Sudoku
★★★☆☆: Tetromino Sudoku
Various Puzzles:
★☆☆☆☆: Blown Fuses in Electrical Installation, Let Me Introduce Myself, French Wrench
★★☆☆☆: Symmetrical Fan, Night Club, Important Hour on the Clock, What Was the Sum Again?, Disgroup Joints, 10-Arrows, Antiking Dutch Skyscrapers
★★★☆☆: Cops & Robbers, Positive Symmetry, Doppelgänger Killer 1-25
★★★★☆: Liars. Liars Everywhere.
Solution code: Ninth (9th) row of the grid from left to right.
Comments
on 9. December 2025, 14:28 by itsid
very approachable and nicely flowing puzzle, no hiccup, no hesitation...
great puzzle for a quick mind-soothing break.
Thank you very much for setting this
on 18. November 2025, 05:01 by siliciousreese
Lovely Puzzle! I overlooked one deduction for a while, but I think the entire puzzle flowed smoothly.
on 16. November 2025, 23:57 by VitP
disjoint groups is a variant that AUTOMATICALLY STARTS at level 2.
THIS one is considerably harder.
SK: Hi, I have posted it as 3*, but it is up to solvers to establish the difficulty level
on 10. November 2025, 22:27 by War
Cool puzzle!
