There are many variants of peg puzzles. In this one, the goal is to swap the the red and black pegs. Red can only move right into a free hole; Black only left. Pegs can also jump a single peg of a different colour. There are over 19M solutions (excluding symmetries) ranging from 46 to 58 moves.

📢 My team at Meta (including Yaron Lipman and Ricky Chen) is hiring a postdoctoral researcher to help us build the next generation of flow, transport, and diffusion models! Please apply here and message me: www.metacareers.com/jobs/1459691...

Postdoctoral Researcher, Fundamental AI Research (PhD)

Meta's mission is to build the future of human connection and the technology that makes it possible.

metacareers.com

Made a jewellery box for my daughter. Complete with magic closing drawer.

Finished teaching my new course on deep learning for computer vision. You can find the lecture notes here: users.cecs.anu.edu.au/~sgould/pape...

The illustrated guide to a #PhD matt.might.net/articles/phd...

Every experienced researcher has their own advice for writing scientific papers. Here's mine. users.cecs.anu.edu.au/~sgould/pape...