Pointer Arrow Parity Loop
(Published on 31. May 2025, 01:42 by yttrio)
This puzzle using the pointer arrow loop concept used previously in Pointer Arrow Whisper Loop
Rules:
Normal Sudoku rules apply.
Draw a one-cell-wide loop of orthogonally connected cells. The loop may not touch itself, not even diagonally.
The loop acts as a parity line: digits along the loop must alternate between even and odd digits.
Loop Pointer Arrows:
-- Digits along an arrow must sum to the digit in that arrow's bulb, and all bulbs are on the loop.
-- Additionally, arrow tips point towards a cell containing the digit within the arrow's bulb, and this cell with the pointed-to digit is also on the loop.
-- The digit in the arrow tip indicates the distance from the arrow tip to the pointed-to cell. There may be other instances of the same digit between this cell and the arrow tip.
Solution code: Digits on the loop in row 7 (left to right) followed by digits on the loop in column 3 (top to bottom)
Comments
on 19. June 2025, 22:27 by QuiltyAsCharged
That was fun! And not too difficult. Pointer arrows are a nifty concept
on 2. June 2025, 15:14 by damo_89
An yttrio loop puzzle is always lovely. This was a remarkable construction with so many interwoven parts, I can't imagine how long finding a valid grid took. For me right at the outer edge of my solving ability 4.5 stars if I could give it that, but worth every moment.
on 2. June 2025, 06:16 by takeponmaki
Great puzzle, enjoyed very much. Thank you.
on 1. June 2025, 14:53 by e_reads
This was such a challenge for me, but I figured it out eventually! It felt like such an accomplishment!!!! Great puzzle!
on 1. June 2025, 13:15 by Franjo
Another excellent loop puzzle - as expected, and much more approachable than expected. Thank you very much for creating and sharing this lovely odd/even game.
on 1. June 2025, 11:36 by Sinuit
Wow! Very cool interplay of all the constraints. For me it was a clear 3* difficulty.
Thanks a lot for creating and sharing.
on 1. June 2025, 09:45 by Snookerfan
A loop puzzle by Yttrio is always a treat. I found this one easy for a change. Really fun. Thank you.
on 1. June 2025, 00:08 by Exigus
Brilliant. Just enough to piece it together. Thanks!
on 31. May 2025, 17:25 by ssaper
Loved it. At first it seems like there's not enough information, but everything falls into place
on 31. May 2025, 16:04 by Jafacake
Always love a yttrio loop puzzle!
on 31. May 2025, 10:56 by Wuschel
Very cool, thanks!
on 31. May 2025, 10:11 by Juiceshack
This was fun, well done :)
