Hub protocol

[gwiesenekker]

Hi,

In hub mode I send GWD the starting position and all moves played in the game until now as part of the 'pos' command, but Kingsrow starts to ignore the last played move around move 60, perhaps the string gets too long? In Scan's protocol.txt I read 'Hub only sends king moves, as they are usually reversible.' which suggests I should start sending positions after the last non-reversible move, but you could also have 60 king moves.
What are other engines sending?

Regards,
GW

[gwiesenekker]

Hi,

I found the root cause. My 'International Draughts GUI' was sending a 'K' after a promotion. GWD didn't care but Kingsrow does.

Regards,
GW

[Ed Gilbert]

I found the root cause. My 'International Draughts GUI' was sending a 'K' after a promotion. GWD didn't care but Kingsrow does.

Ah good. I was almost finished typing a rather long response when I saw that you found the problem.

In general I think you should only send the most recent moves starting at the last non-reversible move. The engine doesn't need to see the entire game history every time. I guess it might make a slight difference in super-fast TC games if the game is a very long one.

-- Ed