A Longer Snake in the Grass
(Published on 18. June 2026, 10:53 by marty_sears)
Rules:
Normal sudoku rules apply.
SNAKE: Draw a snake, one cell wide, that starts and ends at two neighbouring cells within the same 3x3 box. The snake only moves orthogonally, and visits every cell in the grid apart from the large grey rock in the central cell. The snake may not enter any cell more than once.
INSECTS: The snake must eat every insect, and these divide the snake into segments. Adjacent segments along the snake have consecutive totals. No two segments have the same total.
GREY PEBBLES: The snake must not pass directly through any grey pebbles. Digits joined by a grey pebble are either consecutive, or have a 1:2 ratio (or both.)
EGGS: One of the four digits surrounding an egg indicates the number of spots on that egg.
Solution code: Row 9 from left to right
Comments
today, 17:02 by Klausku
Magnificent puzzle! At an early stage, the puzzle seemed broken and I couldn‘t find my mistake until I realized that grey pebbles are not black dots. Thanks, Marty.
today, 12:51 by vukkarak
After all those rat puzzles it was easy and fun!
today, 04:15 by psams
Fun to solve, and hard, with a bit of extra excitement not knowing which end of the snake is the one that bites.
on 28. June 2026, 17:57 by WildEnte
Beautiful!
on 25. June 2026, 02:30 by Fro
Loved it. Difficult but you could always deduce some bits and pieces here and there till in untangled
on 23. June 2026, 20:37 by BG03
Snake run 2 - a fitting encore to the rat runs! The first digit is a bit challenging especially if you haven't done the first snake run. The second digit is 5* hard and one cannot progress without making this deduction. Rated this 5* for difficulty. Thanks!
on 21. June 2026, 21:50 by QuiltyAsCharged
Wow this puzzle had me snakebitten! I struggled for a long time to get any paths started or to narrow down where the start/end should be. I hope there is a video solve, maybe I can learn some new tricks.
Once I was able to place some segments, I reached a point where everything became much smoother. It's a very nice puzzle, just very challenging for me
on 21. June 2026, 15:27 by eladv
Cool puzzle! I was stuck for literally hours until I realized the rules say:
"the snake starts and ends at two neighbouring cells **within the same 3x3 box**"
Without that additional rule, the puzzle is impossible (for me). Might even be worth bolding it.
on 21. June 2026, 05:27 by Lyouke
I love path drawing puzzles!!!!!!
on 20. June 2026, 13:05 by mir85
Another banger! Love a snake puzzle :D
on 20. June 2026, 09:32 by Gunkan
Wonderful
on 19. June 2026, 14:08 by dleclair
Really nice puzzle, it was a nice balance of difficult yet a slow and steady solve path for me.
on 18. June 2026, 16:59 by mscha
That was fun, but a LOT harder than the original!
(I re-did the original as a reminder. At the time I gave it two starts for difficulty; I must be getting dumber, since I considered it 3 stars today. :-) )
on 18. June 2026, 16:07 by Franjo
Doing the math and locating the first digit was fairly easy, but then … As usual I enjoyed my stumbling along the solution path. Thank you very much for creating and sharing another beautiful puzzle.
on 18. June 2026, 14:10 by Angara
Super fun! I used a calculator to find the sequence of segment sums))
on 18. June 2026, 12:01 by Reisen
That's a really nice puzzle :)
