Experimental Puzzle 5/6: Kropki
(Published on 18. May 2026, 20:40 by Sudokujoker)
This is the fifth puzzle in a short series of experimental puzzles. The first five puzzles in the series each explore one constraint in a 6x6 puzzle, and the sixth puzzle combines all five constraints in a full-size sudoku.
Normal 6x6 sudoku rules apply: place the digits 1-6 in each row, column and 2x3 box. Dynamic fog: the grid is covered in fog. Correctly entering a digit will clear the fog in that cell and may clear the fog in other cells too. Kropki: Digits joined by a black dot are in a 1:2 ratio. Digits joined by a white dot are consecutive. All possible dots are given.
Sudokupad link: https://sudokupad.app/ir0tbmbxpm
Solution code: Column 1
Comments
on 11. July 2026, 12:54 by Kirra
Very enjoyable
on 23. May 2026, 18:01 by fishsaltyak
SPEED RUN!
on 20. May 2026, 20:46 by SanFranSam
I was about to type in a rant about impossible to solve until i saw that it black and WHITE Kropki dots. For some strange reason i thought that it was only black dots in the puzzle. Ooops!
on 19. May 2026, 17:18 by micking
Great puzzle. I love negative constraint in kropki.
on 18. May 2026, 23:25 by dzamie
Fastest one by far. Negative constraint kropkis are often quite quick.
on 18. May 2026, 20:41 by Sudokujoker
Difficulty updated to 1 star
