Loopy Tiles
(Published on 15. October 2026, 13:33 by marty_sears)
Rules:
Normal 6x6 sudoku rules apply.
Use the 7 types of tile shown at the top to tile the whole grid, so that a picture of a single blue loop is formed. The blue loop moves orthogonally between cells.
A digit in a circle indicates how many times that cell's tile type appears in the grid. (Tiles may not be rotated.)
If a yellow dot sits between two digits, they are non-consecutive digits. The loop may not pass through a yellow dot.
Solution code: Digits on the loop in column 6, reading downwards
Comments
yesterday, 21:36 by valacd
Exceptional! 2h to figure out the logic (thanks to WildEnte!), 10 min to solve. Great fun
on 20. October 2026, 23:06 by SBM
Simply fantastic! When you get it... it just clicks. It took a short while to discover the loop properties, but a very swift solve thereafter. Brilliant!
on 20. October 2026, 06:58 by vitaminz
This puzzle makes you find something beautiful and I can’t think of higher praise than that
on 19. October 2026, 00:37 by mscha
Whew! 5 stars for difficulty, at least, if you're not a professional loopologist.
Interesting new ruleset, nice puzzle.
on 16. October 2026, 16:31 by Miatc
Felt like I had to derive a bunch of rules about loops to solve this, and even then it felt impossible right until I figured it out. Fantastic puzzle, thank you Marty!
on 16. October 2026, 16:28 by SennyK
Wow, what a puzzle, brilliant as always! :-)
on 16. October 2026, 01:33 by marty_sears
made tiles at the top editable for note-taking
on 16. October 2026, 00:44 by eladv
Whow. I think this is the most wonderful Sudoku I've ever solved. The less said about it, the better. I can't wait to see Simon give this one a crack. This is the From Dusk Till Dawn of Sudoku.
on 15. October 2026, 18:59 by emoney1374
Phenomenal puzzle!
on 15. October 2026, 15:36 by mir85
Now I'll have to resolve :D
Marty: two puzzles for the price of one ;)
on 15. October 2026, 15:29 by marty_sears
Changed a couple of the clues, but the solution code is still the same
on 15. October 2026, 15:01 by Franjo
Thank you very much for creating and sharing this new constraint. Not easy to put my head around this one - as expected. I‘d like to see more of these!
on 15. October 2026, 14:57 by mir85
A real brain twister!
