4 ms·

John Graham-Cumming posted something like this some years ago.

• mcconnma 11y ago
  Thanks for the name, I found the article here: http://blog.jgc.org/2010/01/more-fun-with-toys-ikea-lillabo-train.html http://blog.jgc.org/2010/01/more-fun-with-toys-ikea-lillabo-.... However, he only solves for 16 pieces. This post and program solves for any number of pieces.
  • zokier 11y ago
    You an jgc also use different criteria for symmetry/rotation removal, evidenced by different count of layouts for 16 pieces (jgc 9, you 15)
    • mcconnma 11y ago
      I noticed that as well, I need to figure out what is the difference ...