RAT RUN 2: Tenacity
(Published on 12. June 2024, 09:40 by marty_sears)
- Normal 8x8 sudoku rules apply; fill the grid with the digits 1-8 so that no digit repeats in a row, column, or marked 4x2 box.
- AIM OF EXPERIMENT: Finkz the rat must reach the cupcake by finding a path through the maze. The path will be a snaking line that passes through the centres of cells, without visiting any cell more than once, crossing itself or passing through any thick maze walls.
- As well as moving orthogonally, Finkz may move diagonally if there's a 2x2 space in which to do so, but may never pass diagonally through the rounded end / corner of a wall.
- TEST CONSTRAINT: In this experiment, any two adjacent cells along the correct path must sum to at least ten.
Solution code: Column 7 cells that are on the path, reading downwards
Comments
on 19. February 2026, 18:53 by Scorps
Found this one considerably harder than Primer (took about 20 mins longer) but still obviously great! Late to the party but looking forward to working my way through the series.
on 4. January 2026, 13:09 by tstaffor
Starting a replaythrough of Rat Run to prepare myself for the third series. I love the logic of the beginning of this maze.
on 28. December 2025, 10:12 by 26rfeng
I thought this was a bit harder than the last one, but equally enjoyable !
on 18. May 2025, 17:15 by kelatan
once I found the restriction it was not too difficult, but before that it was quite hard
on 31. March 2025, 08:01 by Zinger2099
Okay, I liked this one a lot more than part 1. xD It was worth suffering through Primer to get to Tenacity.
on 7. December 2024, 01:10 by novato
So good!
on 21. November 2024, 16:30 by jakestilesowen
This has a beautiful solve progression. Another great rat installment!
on 25. August 2024, 14:58 by Crusader175
For me this one is a bit harder the first one, but another amazing puzzle!
on 11. August 2024, 20:39 by Snaques
I'd agree, much easier than the first one but still took a bit of thinking to understand the restrictions of the ruleset.
The maze concept is really fun twist on the familiar sudoku concept and this was a fun one.
on 26. June 2024, 19:54 by sockerbecca
This was much easier for me than the first rat maze, and equally adorable and fun ^^
on 24. June 2024, 03:16 by Ratfinkz
Another absolute stunner! There's not many mad scientists I'd allow to trap me in a maze....but for the beauty of the logic, and the buttercream at the end.... I'll let you!
Thank you
on 20. June 2024, 21:44 by Christounet
Never seen such smart lab rat before ! Go Finkz !
on 17. June 2024, 10:56 by davidemsa
This is even better than the first one. It shows that the bigger grid gives you more freedom to do interesting stuff.
on 17. June 2024, 00:31 by Jolly Rogers
Fantastic series, heavily invested in Finkz, this rat will outsmart us all
on 16. June 2024, 19:42 by ViKingPrime
This one actually felt a bit easier than the first (not as any kind of diminishment! rather it felt like there was a lot more confidence to the setting of this entry). I'm sure I speak for everyone when I say we're all eagerly awaiting the next one.
on 14. June 2024, 10:11 by sujoyku
Thank you for this fantastic puzzle, marty sears! I have to admit I had to warm up a little for the idea when I tried the first puzzle but now I would not want to miss Finkz maze races. Can't wait for the next parts of the series.
on 14. June 2024, 07:28 by fitzie
the more the rat gets the cupcake the more hungry it is for more.
on 13. June 2024, 22:20 by ChinStrap
Loved it. Can't wait for the next.
on 12. June 2024, 19:20 by wuc
That one was harder than the first one but way cooler to solve. Looking forward to the upcoming experiments. Thx.
on 12. June 2024, 16:17 by johncj
Looking forward to June 19!
on 12. June 2024, 15:50 by thoughtbyte
Loving the series, thanks!
on 12. June 2024, 15:31 by mihel111
Marty, you owe me a cupcake. The rat.
on 12. June 2024, 11:16 by Prince Myshkin
23:03 for me, more Flowers for Marty <3
