Winboard Forum

Hi all,

I am hoping someone can answer this. I am trying to answer the question myself but somehow I am having some weird troubles running polyglot on my machine with the setup that I need. While I work on fixing them I am going to ask here.

When a promotion to a Queen move sent by my engine looks like this: "bestmove h7h8" Polyglot seems to ignore it. Does Polyglot expect instead one of the following:

"bestmove h7h8q"
"bestmove h7h8Q"
"bestmove h7h8=q"
"bestmove h7h8=Q"

Or is it happy with the one I send and assumes if nothing is being specified then a promotion to Queen should happen? My experience (during Olivier's OpenWar6 tournament) is that it totally ignores my move.

I would not fault Polyglot for expecting one of the options above, but I would like to know if that is the case. Arena accepts my move just fine, without the queen specifier.

Thank you,
Vlad.

The UCI "specification" here

http://wbec-ridderkerk.nl/html/UCIProtocol.html

seems to suggest that the proper notation is h7h8q

PG accepts both h7h8q and h7h8Q.

If you set

PromoteWorkAround=true

in polyglot.ini then it also accepts h7h8.

Thank you Michel,

It seems you are right indeed. I've done some research using some popular UCI engines and it looks like the promote-to piece is always reported (even when it is a Queen).

Thanks,
Vlad.