So, after asking AI whether and how to solve a solo mode task in Collapsi with 16 cards and classic settings, I was told that it is theoretically possible, but that it doesn't happen very often. So my successful attempt with 16 cards was probably just a coincidence, because I haven't been able to do it since. So I switched to the original solo game variant with 9 cards, but to make it a little more difficult, I changed their values to 1, 1, 2, 2, 3, 3, 4, and red and black jokers. The solo game has been updated and statistics on successfully solved puzzles in solo mode have been added.
Solo mode (difficulty)
The program offers three levels of difficulty to choose from easy, medium and hard. In difficult mode, it is randomly generated from three sets of cards.
['1', '1', '1', '2', '2', '2', '3', 'R', 'B'] - easy
['1', '1', '2', '2', '3', '3', '4', 'R', 'B'] - medium
['1', '2', '3', '3', '3', '3', '4', 'R', 'B'] - hard 1
['1', '2', '3', '3', '4', '4', '4', 'R', 'B'] - hard 2
['2', '2', '3', '3', '4', '4', '4', 'R', 'B'] - hard 3
https://sentinel65.github.io/Collapsi_AI_BASE64_en.html
