Ludo logic

It was raining so the kids decided to play ludo. I had to marvel at Léon's logic. He was playing just with Charlotte at that point. One of the purple men was missing. He wanted to be purple and Charlotte blue so obviously he had two solutions - either they could each play with three men, or he could take say green and play three purple and a green against her four blue. Oh no! That would be way too simple. I walked in in time to hear him explain that he would take three purple and a blue and she could have three blue and a red and he would just keep his eye on his blue one as it went round the board so as not to get it mixed up with any of hers! Mind boggling!