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!


Saturday, April 29, 2017

Stockfish 17042905 - new version!

Stockfish, chess engine UCI
Leader rating list JCER = 3405
🔬 Author: Joost VandeVondele


Timestamp: 1493436544 

Copy killers in the movepicker 
ss->killers can change while the movepicker is active. 
The reason ss->killers changes is related to the singular 
extension search in the moves loop that calls search<> 
recursively with ss instead of ss+1, 
effectively using the same stack entry for caller and callee. 
By making a copy of the killers, the movepicker does the right thing nevertheless. 

Tested as a bug fix 

LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 70845 W: 12752 L: 12716 D: 45377 

LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 28368 W: 3730 L: 3619 D: 21019 

Bench: 6465887 
Closes #1085 
⭐⭐⭐   Stockfish 17042905 - download

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