I think you could establish an upperbound at 50 times larger, because each set of "neurons" could be completely independent for each game, with 49 neurons to de

I think you could establish an upperbound at 50 times larger, because each set of "neurons" could be completely independent for each game, with 49 neurons to determine which set to use. If they have similar features (which they undoubtedly would), the size could drop a lot. Of course, I have no training in neural nets, and so my conclusions are reached from general understanding/reasoning.