puzzles

Some friends have asked me about various puzzles, so I thought I’d make a page for them.


Jane Street Puzzles

I learned about Jane Street’s monthly puzzles in August 2025 and have usually attempted them since. When I have time, I sometimes post a cursory writeup.

Month Puzzle Solved Position Post
August 2025 Dogs Playing Poker :white_check_mark: 210/245 Link
September 2025 Hooks 11 :x:    
October 2025 Robot Baseball :white_check_mark: 770/777  
November 2025 Shut the Box :white_check_mark: 387/500  
December 2025 Robot Javelin :white_check_mark: 437/647 Link
January 2026 Timely Journey :white_check_mark: 24/52 Link
February 2026 Subtiles 2 :white_check_mark: 354/970  
March 2026 Planetary Parade :x:    
April 2026 Can U Dig It?      


Project Euler

I sometimes do Project Euler problems, and I post my code in this repo.