I don't think GPUs are good for chess, but I could be wrong.
A chess pool would need a completely different structure than a mining pool, I don't think much can be reused from the existing code and infrastructure of mining pools.
I support the idea of (and had for a while an interest in) a distributed chess playing agent, if such a thing doesn't exist yet.
There are some chess-related grid computing projects, such as chess960@home.
You are 100% right. CPU is good for chess not GPU but OP is clueless.
They use Ivy Bridge CPUs not dedicated hardware or GPUs anymore.