In the Ring: Greko 5.1

Questions and comments related to CCRL testing study
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Chuck Wilson
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In the Ring: Greko 5.1

Post by Chuck Wilson »

In the Ring: Greko 5.1

A new Blitz gauntlet has been started featuring the new-to-CCRL Greko 5.1 by Vladimir Medvedev of Russia. Greko seems to be a well-featured and stable UCI engine, qualities that make it fun to play. It's listed as also supporting Winboard, though I'll be running it under the UCI protocol.

The following 30-round matchups have been selected for Greko 5.1.

Greko 5.1 - BamBam (2041)
Greko 5.1 - FireFly 2.13 (2077)
Greko 5.1 - Gibbon 2.01b (2154)
Greko 5.1 - Wing 2.0a (2172)
Greko 5.1 - LittleThought v0.97 (2294)
Greko 5.1 - Atlas 2.20 (2308)
Greko 5.1 - Horizon 4.3 (2326)
Greko 5.1 - Popochin 2.7 (2335)
Greko 5.1 - Anechka 0.08 (2363)
Greko 5.1 - Arion 1.7 (2420)
Chuck Wilson
Posts: 540
Joined: Fri Oct 13, 2006 2:53 pm
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Location: Annapolis, Maryland, USA
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Post by Chuck Wilson »

Final results over 30 rounds are:

Greko Gauntlet 2007

GreKo 5.1 - Gibbon 2.01b 26.0 - 4.0
GreKo 5.1 - BamBam 26.0 - 4.0
GreKo 5.1 - FireFly v2.1.3 23.0 - 7.0
GreKo 5.1 - Wing 2.0a 19.5 - 10.5
GreKo 5.1 - LittleThought v0.97 19.0 - 11.0
GreKo 5.1 - Atlas 2.20 14.5 - 15.5
GreKo 5.1 - Popochin 2.7 17.5 - 12.5
GreKo 5.1 - Horizon 4.3 9.0 - 21.0
GreKo 5.1 - Anechka 0.08 14.5 - 15.5
GreKo 5.1 - Arion 1.7 7.0 - 23.0


Only Arion and Horizon scored significantly better, and based on the results GreKo enters the CCRL Blitz Rating List at 2318 after 300 games. All of GreKo's games also qualified for the CCRL Pure List, and so GreKo 5.1 appears on the Pure List as well, with a rating of 2323.

Congratulations to the author, Vladimir Medvedev of Russia, for an excellent engine.
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