Abstract

Lightbot is an interesting game app that has strong educational purpose to guide kids at young age to learn programming skills. It has a free version named Lightbot Code Hour consisting of 20 levels. Although it is not too hard to solve the puzzles, finding the optimal solutions with the smallest number of blocks is non-trivial for some levels. In this paper, we provide a complete list of the block numbers for optimal solutions adding up to 174 blocks total as the smallest number, as well as the detailed analysis of all the non-trivial levels. 

Keywords

lightbot, optimal solution, puzzles, spiral move