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Re: current development

From: Joseph Heled
Subject: Re: current development
Date: Sun, 8 Dec 2019 08:46:05 +1300

Yes. But there is the question of how easy it is to "navigate" to those positions. can you reliably get to those positions against a bot and win from their ignorance?
I have my doubts.

(written by someone who spend a very long time trying to train a net for backgames, and failed).


On Sun, 8 Dec 2019 at 08:21, Timothy Y. Chow <address@hidden> wrote:
On Sat, 7 Dec 2019, Nikos Papachristou wrote:
> The moral: If one needs to experience the full power of the bg bots one
> needs to change the default settings which are configured for the
> average user. Whatever errors bots occasionally make at their
> evaluations, they make up by searching deeper.

I agree that changing the default settings helps, but your second
statement is wildly optimistic.  You got lucky in this one particular
position, but I can easily produce many positions where the bots are
obviously confused no matter what search depth or move filter or rollout
setting you use.  The easiest examples concern superbackgames and snake
rolling.  Put five black checkers on each of the 6pt, 4pt, 2pt of black's
home board, and put five white checkers on each of the 5pt, 3pt, and 1pt
of black's home board (so it's a "superbackgame").  Now ask for the cube
action.  Whatever setting you use, you'll get nonsense.

Or try putting 2 white checkers on each of black's 1pt, 2pt, 3pt, 4pt,
5pt, 6pt, and 3 white checkers on black's 7pt.  Put two black checkers
somewhere else on the board.  Now sit back and laugh as you watch the bot
try to roll white's prime around the board.


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