[fbbnanft] Instantaneous chess UI

Create a computer chess opponent which always responds instantaneously within the limit of human perception.  This should be easy given the power of computers nowadays, though it will require some care with an opening book, endgame tablebases, ponder, and even speculating the opponent's moves and precalculating responses.

The computer will still probably win against a human.

After the game, it nearly instantaneously provides analysis of the game, perhaps a list of all the moves better than the move you made for every position in the game.  This could also be calculated as the game progresses if the computer has spare cycles, an application of multipv.