Blog "Chess Engines Diary" - needs a new laptop for chess engine tests

♔ We use for testing only 2 old laptops:
1. Acer - Intel Core i3-3217U ( 5 years old)
2. Lenovo - Intel Core i7-4710MQ is over 3 years old (He works 24 hours a day)

♕♞ A modern laptop that will be designed only for chess engine tests costs (with software) about $ 1000-1200 (4200-4500 PLN). We will no longer invest private money, and chess engine testing costs are big. That is why we are starting the collection for the purchase of a laptop for testing.

♕ Our blog "Chess Engines Diary" is visited by around 2,000-3.000 users daily. If only everyone paid 1 dollar - we will pay the required amount in one day!


Thursday, January 19, 2017

Chess engine: Roc (derived from Gull 3)

Roc is a new chess engine, derived from Gull 3

Roc has the following refinements: 
-- based on a C++ port of Gull 3, eliminating goto tatements. 
-- fixes some minor bugs found in the Gull source 
-- unit of valuation changed from 1 cp to 1/4 cp 
-- extends Gull's two phases (opening, endgame) to 3 phases (opening, middle, endgame) plus a phase-like contribution for closed-ness 
-- supports a contempt setting 
-- adds king tropism to evaluation 

In tests so far, Roc appears to be slightly stronger (5 +/- 5 Elo) than Gull 3. 

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