Salix (159 Index Line Sudoku)
(Published on 29. April 2026, 03:43 by Ambrose)
Rules
Standard Sudoku: Place a digit from 1 to 9 in each cell so that each row, column, and outlined box contains exactly one of each digit.
159 Column Indexing: If digit X appears in row N of column 1, then 1 appears in row N, column X. Similarly for columns 5 and 9.
Index Lines: On a blue index line, if digit X appears in the Nth cell counting from the diamond, then digit N appears in the Xth cell from the diamond.
Solution code: Digits of column 7, top to bottom.
Comments
on 11. May 2026, 08:19 by ark29
Great puzzle.
on 11. May 2026, 03:28 by MysticMan
Great work combining two of my favorite constraints. Lovely puzzle!
on 5. May 2026, 17:39 by damo_89
Lovely and actually quite approachable if you know the secrets of index lines and 159s
on 3. May 2026, 22:50 by BG03
My first time solving this variant (not sure if it is unique). Greatly enjoyed unwrapping it. Thanks!
on 29. April 2026, 16:27 by PinkNickels
This should have a LOT more solves. Very nice construction. Bravo
on 29. April 2026, 15:55 by sujoyku
Lovely puzzle! Thank you, Ambrose!
