puzzles

I like solving puzzles and have been asked about them by friends, so I thought I’d make a page.


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 occasionally 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? :white_check_mark: 61/94 Link
May 2026 Arch Madness :white_check_mark: 599/599  
June 2026 Regional Artwork :white_check_mark: 558/1136  
July 2026 ‘Pent-Up’ Frustration 3 / Knight Moves 7 :white_check_mark: 156/1139  
August 2026 Andy’s Afternoon Amble :white_check_mark: 149/  


Project Euler

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