The Halloween Cryptical Puzzle comes from Calum Davidson. The object is slide the red and green tiles to free the key.  When the key gets to the slot, you win a gold coin.
There are 13 levels and I've solved 4 of them.  I really like this puzzle.  It would make for a great cylindrical version of Rush Hour.   Hey Calum: really good job. 
Read this article about Calum.
https://apps.apple.com/us/app/the-halloween-cryptical-puzzle/id1484214291

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