Escalator Temporarily Stairs
(Published on 16. May 2026, 08:14 by FibonacciCascade)
Rules:
Standard Sudoku: place the numbers 1-9 once each into every row, column, and 3x3 box
Anti-Knight: cells a chess knight's move apart cannot contain the same digit
Killer Cages: Digits inside cages do not repeat, and must sum to the value given in the upper left corner
Renban lines: Digits along a magenta renban line must contain a set of digits that are consecutive, though they need not be in consecutive order along the line.
Arrows: Digits along an arrow must sum to the digit in the circle at the end of the arrow
Solution code: Row 6
Comments
on 21. May 2026, 14:41 by itsid
very enjoyable indeed, thanks a lot!
on 17. May 2026, 18:39 by sacklunch
Beautifully designed puzzle! It made for an elegant and enjoyable solve. Thanks for setting and sharing.
on 17. May 2026, 14:51 by Elker
RIP Mitch Hedberg, a great tribute.
on 17. May 2026, 04:11 by Elker
RIP Mitch Hedberg, a great tribute.
on 17. May 2026, 01:18 by Calvinball
I enjoyed this puzzle like a duck enjoys bread.
FC: And ducks eat for free at Subway!
on 16. May 2026, 17:12 by wuc
Agree hard 2* to 3*. Had to dig deep in the anti-knight toolbox. Great setting thx.
on 16. May 2026, 14:10 by wuc
Agree hard 2* to 3*. Had to dig deep in the anti-knight toolbox. Great setting thx.
on 16. May 2026, 12:18 by VitP
this isn't level 2.
yes, you can make a lot of progress in the beginning.
yes, you can grind the rest out with long chain bifurcation.
i'm sure there's something better, but it's buried pretty deep
FC: Did you perhaps overlook the anti-knight rule? You really shouldn't have to bifurcate at all
on 16. May 2026, 09:06 by FibonacciCascade
Forgot to include anti-knight in the rules, fixed
on 16. May 2026, 08:59 by mezkur7
There is anti knight constraint that is omitted in the description.
FC: Dang, you're right, I forgot to include that rule in the description, I'll fix it right now, thanks for the heads up!
