Hidato Put a number between 1 and 100 inclusive such that two consecutive numbers are adjacent (orthogonally or diagonally).
Expected difficulty Medium • Answer • Comment/E-mail if you want a solution to be published
This one has been laying in my archive for I forgot how long. Instead of having a long absence of puzzles, let’s throw this out. I was planning to use it on a test, but considering now I use exclusively new variants, I think it won’t do any good into the test.
Also, as you can see, I’m figuring out how to make a good tooltip thingy. (See the dotted 100 above? If you use a desktop computer, you can hover your cursor above it. If you can’t (on mobile phone? or something), then don’t worry, it’s not that important, only that you’re missing “why 100?”.)
Anyway, back to making puzzles. I need to make more to avoid leaving the blog dead…


This is fun! Thanks! You really need to look at all directions at all times. Nice setup.