A new version of this scenario was uploaded on Tue Aug 20 06:39:04 UTC 2013
亂數分布無法保證可還原,不用亂數分布。Random distribution can not be guaranteed to restore, not random distribution.
A new version of this scenario was uploaded on Tue Aug 20 07:33:10 UTC 2013
Streamlining the code
Randomly placing the numbered tiles into the puzzle will not always produce a solvable one. It is best to start with a solved puzzle and randomly make moves to mix it up. Then, it will always be solvable.
2013/8/20