Instructive as an introductory level Hmm, started off taking a long route too often, I found it tricky for kindergarten level. Although I got it fairly quickly it "felt" slightly tricky and may be challenging for a novice. A nice challenge for novices I tried a few paths before getting 23, fairly tricky if considered an introductory level. Good as an introductory level showing how to piece together a set of moves from restricted move blocks. 
Insights