About 4 years ago, a friend i know used a 3-4d level computer against me for a fraction of his game. I noticed something was off, i actually thought he was being substituted, but it didnt cross my mind it was a bot. However, it was a very tactical situation.

Looking at alpha, something similar but at higher level happens: it looks so profoundly tactical that its hard to catch character from it. I can tell how Lee felt however: like i felt playing people close to his level, like you play a wall that you cant read.