First derivative
(Published on 18. May 2026, 00:04 by Testarossa)
Rules:
- Normal Sudoku rules apply
- Look at the gaps between adjacent cells in each row and column, reading left-to-right or top-to-bottom. A gap is an ascent if the second digit is larger than the first.
- The clues outside the grid are Nonogram clues showing the lengths of consecutive runs of ascents in that row or column.
Example 6x6:
Solution code: row 9 (9 digits)
Last changed on on 18. May 2026, 00:06
Solved by Razalynn, TaeChi, Hrothan, hearnicane, ellipsisfinisher, ratolibre, lmg131, firespire, olliwright, chenlu, SKORP17, misha, dzamie, Freegerator, misko, benbradley_123, ebulku, CharlesK, Ulistef, RubberMittens
Comments
on 3. July 2026, 01:58 by RubberMittens
Wonderful puzzle, what a cool logic idea! Would love to see more.
on 4. June 2026, 22:03 by CharlesK
This is an extremely cool puzzle. I'd love to do more in this style
on 21. May 2026, 14:29 by benbradley_123
Loved this! An inventive yet completely natural combination of sudoku and nonogram rules
on 19. May 2026, 12:36 by Freegerator
I really liked this one thank you!
on 19. May 2026, 02:52 by Freegerator
I really liked this one thank you!
on 18. May 2026, 23:06 by dzamie
Trickier than a normal nonogram, since the rows only *in*directly interact with the columns.
