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Re: current development

From: Philippe Michel
Subject: Re: current development
Date: Wed, 29 Jan 2020 21:41:01 +0100

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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