[Retros] Fwd: Proof game promotion task

[Kevin Begley]

 I just wanted to add:  I'm not entirely certain why promoted force
has been avoided in some of these efforts -- many of which are clearly
driven by the desire to produce an extremely long (if not the longest)
orthodox proofgame.

 Certainly, for tasks such as this (and the one you've outlined),
promoted force would be forgiven!?
 This makes me wonder if an orthodox PG beyond 57.5 might be possible!?
 But, I'll not be making any attempts, in the short-term, at a new record. :)

Kevin.