Normal sudoku rules apply.
Modular (teal lines): any set of three adjacent digits must contain one of 147, one of 258, and one of 369.
Entropic (peach lines): any set of three adjacent digits must contain one low digit (123), one middle digit (456), and one high digit (789).
The violet line is both a region sum line and a renban line.
Some lines touch each other, but lines do not fully overlap. Every line segment is visible.
Kropki dots: Digits in cells joined by a white dot are consecutive. Digits in cells joined by a black dot are in a 1:2 ratio. (i.e., one digit will be double the other).
Beaded thread constraint: All kropki dots that fall directly on a line are given, and no kropki dots that are partially or fully off the lines are given (though they may exist).
Lösungscode: Row 3, left to right
am 19. November 2025, 14:58 Uhr von bboom
Fun one! Some nice relations, and limiting the negative constraint to lines only is a nice touch, makes the solve a bit more focussed for me.