Which Direction?
(Published on 7. December 2021, 01:00 by Lisztes)
Normal Sudoku rules apply. Each row, column, and 3x3 box contains each number from 1 to 9 exactly once.
Little Killer Sudoku rules apply. Digits along the indicated diagonals sum up to the number behind the arrow. Digits on a diagonal may repeat.
You may have noticed that there aren't any clues or arrows in the grid...
That's because the clues are two-digit numbers hidden in the killer cages (read them from left to right or from top to bottom). One killer cage belongs to exactly one little killer clue and vice versa.
The solver must also deduce the direction of the little killer clues. For example a blank clue at R5C0 can start at R4C1 (going north east) or R6C1 (going south east). Example
White dots between two cells indicate that those cells contain consecutive digits. No negative constraint.
The puzzle is also available online.
Solution code: Row 1 and Column 9.
Comments
on 8. December 2021, 11:22 by Sktx
This was a really fun solve, and I'm still amazed at how little it gives us to start, while still being solvable in a very elegant way. Little killers are not my usual cup of hot beverage, but this was a real joy to solve. Thanks !
on 7. December 2021, 20:32 by Lisztes
@henrypijames @SirWoezel
Thank you, much obliged!
on 7. December 2021, 06:28 by SirWoezel
This is a really clever puzzle. Another one on my list of favourites!
on 7. December 2021, 04:23 by henrypijames
Wow, this is truly a further escalation of the "less than nothing" trend of clue-minimization.
Strongly recommend this puzzle for CTC! And this from someone who doesn't usually like little killers. But this one is as miraculous as any miracle sudoku.
