In case anyone hasn't realized it, you don't actually have to solve the sliding puzzle. You just have to move the ball among the sliding pieces to get to the goal. Which I think is a little bit easier.

感谢指南！在这里卡了好久好久

帮大忙了，在这里疯狂卡关

There are couple of points where it can be made even shorter:
-skip 5-6, go directly from 4 to 7
-Instead of 14-17, use the lower corridor of the starting block to move from 13 to 18

(among the last puzzles I did, because this did take a while to figure out)

Genius. This is so helpful.

Thank you this was so helpful, was the last one i was stuck one! :)

@rwella.c the 14 is next to 15 it just looks a little like 16

@rwella.c can u find 15? 14 is, from 15, 1 step upwards and 1 step to the left

theres no 14 ._.

thx