Opening book for game with handicap

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lkaufman
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Re: Opening book for game with handicap

Post by lkaufman » Thu Sep 12, 2019 6:15 pm

mmt wrote:
Thu Sep 12, 2019 5:26 pm
lkaufman wrote:
Thu Sep 12, 2019 3:40 pm
I think Lc0 (presumably a current net) is okay for f7 handicap, but it is totally useless for knight odds or more, the analysis is ridiculous (old net like 11248 or 11258 is ok).
Interesting. Is the reason you're saying it's ridiculous for b1 handicap is because of a very negative evaluation? That's what seems to be happening at the beginning of the analysis but then the evals become somewhat less negative. I'll run it for longer (net 42850). A few games vs other top engines would also be interesting.
The problem is similar to the "trolling" behavior of Lc0. Versions since 11258 have been trained with resignation on, presumably in positions less bad than knight odds. So it has no understanding of how it is worse to be down two knights than one (just for example). The PVs often include ridiculous moves, even blunders that a 1200 player would be ashamed of. As long as the initial eval of the losing side (as a winning percentage) is double digit or at least close to that, everything seems to be fine, But with win probabilities like 2 or 3 % it outputs nonsense. Version 11248 or 11258 gives double digit win prob for knight odds so it is ok at that handicap.
Komodo rules!

mmt
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Joined: Sun Aug 25, 2019 6:33 am
Full name: Jim Fields

Re: Opening book for game with handicap

Post by mmt » Thu Sep 12, 2019 6:27 pm

Thanks for the explanation!

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