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Re: current development

From: Joseph Heled
Subject: Re: current development
Date: Thu, 30 Jan 2020 09:51:47 +1300

What are "roller levels"?

And "5 points"? are those Elo points? something else?


On Thu, 30 Jan 2020 at 09:41, Philippe Michel <address@hidden> wrote:
On Wed, Jan 29, 2020 at 09:28:04AM +0000, Sarah Payne wrote:

> For sure, I would expect gnu still to have some playing strengths
> against xg. That’s what is so impressive: how it’s still as strong as
> it is with no new recent versions.

You wording is somewhat confusing. The last major versions of GNUbg
(1.0x) are more recent than XG2.

It went something like : GNUbg 0.90, then XG1 (about 5 Elo points
stronger at 2ply/GNU 3ply/XG), then XG2 (about 15 points stronger than
XG1), then GNUbg 1.0 (about 15 points stronger than 0.90 and 5 points
short of XG2). In addition, XG has its roller levels that give it
another advantage.

It was a bit disappointing to remain slightly weaker than XG2 but enough
of an improvement over GNUbg 0.90 to be worth releasing as it was rather
than wait for hypothetical further improvements.

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