
r/puzzles


Number Crossword Help
Not sure how to start this one/where to begin. Any help is appreciated! I would start by just filling in a random row and seeing if it works out but I would prefer to not brute force it.
Jane Street Puzzles
Here are a bunch of puzzles created by a trading firm. I haven't solved any of them yet but I thought folks here might enjoy them. Please let me know if you know of similar types of puzzles, like those in college-level puzzle competitions or those used for recruiting for computing companies.
Note the link is for their archived puzzles but they also have an on-going monthly competition puzzle.
Promote your project in this thread
This thread is for promoting your own work. Please limit your promotions to only one per week.

Need help solving this wavelength puzzle
Hello everyone, I recently got into an old online url based riddle game. So far I have managed to get by with hints and my own logic but I have hit a road block with this level. I'm supposed to get a 10 digit code to get onto the next level as you are told to walk along the path of the lines which you start at black 1 at the top. The numbers that act as a guide are "11 52 21 21 13 31 11 11 32." The next hint is "first comes bottom then comes strength" to which people have said that it refers to the wavelength chart at the bottom for each first number of the pairs and the second meaning how many lines are between each segment for strength. I have tried trial and error and cannot seem to get it and would like not to quit! Am I doing something wrong or the hints incorrect? Any help would be appreciated.

“Chemistry” based puzzle
Hello! My freind sent me this puzzle and I’ve been stuck on it for a good while now, the only things I know of other than what I’ve included in the screenshots (the code-based one is from the source code of the webpage the molecule is on) is that it’s not an actual chemical, you (technically according to my freind), the red line image was obtained via a hint on the webpage i got it on (photopotent.neocities.org/smiles) dont need to know anything about chemistry to solve it, and that the answer is always a real word or name. Thanks for the help in advance, and I hope someone smarter than me can figure it out… -3-
(Source code and red line image in comments)
Queendoku challenge mode?
I'm playing it on my phone and I've unlocked challenge mode by playing 50 regular levels or something like that. The problem now is that I can only play on the normal difficulty. If press play on the other difficulties I still get a normal level.
Is it something I don't understand?

Please help 😭 can’t figure out this number/spatial puzzle!
I’ve been trying this part of this puzzle for SO long, please help!!