The grammar of players' LoPS describes how the players use compositional rules to build their solution. Better players have more sophisticated grammar to navigate in a more complex game state space. Furthermore, the players' grammar complexity evolves with learning and explains their performance.

As my first bluesky post, announcing our new paper "A language model of problem solving in humans and macaque monkeys"! Here, we use a language model to examine humans and monkeys playing the Pac-Man game. We call it the Language of Problem Solving (LoPS). www.sciencedirect.com/science/arti...