There are other results on chess, you know, like grandmasters spending more effort on falsifying their suggested moves: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.117...

Correlation is not causation, and of the two correlations, I think falsificationism is more useful than quick board-encoding - you don't play chess from memory, you play the position the game is currently at.