Near Algodones (Full Rank Sudoku)
(Published on 11. August 2025, 15:44 by SamuPiano)
RULES:
Sudoku: Normal sudoku rules apply. Place the digits 1 to 9 once each in every row, column, and 3x3 box.
Duality:
Each clue outside the grid is both a full rank clue and an up-to-N sum clue. Stars denote any number and question mark clues denote one-digit numbers.
Full Rank:
The nine-digit numbers attained by reading from each edge of the grid, starting at the clue, are ranked according to size, from smallest (1) to largest (36).
Up-to-N Sum:
Clues outside the grid also indicate the sum of the digits up to, but not including, N, where N is the row/column number of the clue.
Inequality: The inequality sign in the grid points to the smaller digit.
Happy solving! Please leave a comment if you enjoyed this one, and check out some of my other puzzles!
Solution code: The 4th-ranked row or column.
Comments
on 17. August 2025, 16:50 by GoodMorningCallum
A truly remarkable construction with some wonderful and really enjoyable logic throughout. Thank you very much!
on 14. August 2025, 12:00 by marcmees
Very nice break in. Great construction. Thanks
on 12. August 2025, 04:39 by vitaminz
Wow. One of these rows was absolute magic.
on 11. August 2025, 20:16 by ThePedallingPianist
A stellar example of how to set Full Rank puzzles to be consistently interesting, surprising and enjoyable!
on 11. August 2025, 20:08 by bansalsaab
Amazing construction
