If you're a senior Go player and you think robots can play I'm suspicious of your expertise.

Literally what people thought after Fan Hui (2-dan) was beaten. For humans software requires ingenuity and creativity. Computers can cheat that, infact computers ALWAYS cheat that to beat humans. NTP as a method of cheating is slightly more general than say board evaluation, so it's less efficient for the same problem, but scaling laws show that with enough compute NTP can beat humans at chess (or any most other arbitrary games, in real time).