Stockfish 13

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Ian Thompson
Posts: 2722
Joined: Wed Jul 02, 2008 4:31 pm
Location: Awbridge, Hampshire

Stockfish 13

Post by Ian Thompson » Sat Feb 20, 2021 11:34 pm

The thread on Fat Fritz 2 encouraged me to download and install Stockfish 13.

When I run it, I see this analysis window:
Stockfish 13.jpg
Stockfish 13.jpg (72.71 KiB) Viewed 645 times
What's the 17.0% telling me? With my previous engine that box was always empty. In the time it's taken me to write this post the number has increased to 97.5%.

MSoszynski
Posts: 185
Joined: Thu Apr 05, 2007 4:43 pm

Re: Stockfish 13

Post by MSoszynski » Sun Feb 21, 2021 9:02 am

Hash (transposition table) usage.

Phil Neatherway
Posts: 580
Joined: Thu Apr 12, 2007 4:10 pm
Location: Abingdon

Re: Stockfish 13

Post by Phil Neatherway » Sun Feb 21, 2021 9:59 am

Er, what does that mean?

Ian Thompson
Posts: 2722
Joined: Wed Jul 02, 2008 4:31 pm
Location: Awbridge, Hampshire

Re: Stockfish 13

Post by Ian Thompson » Sun Feb 21, 2021 10:43 am

Phil Neatherway wrote:
Sun Feb 21, 2021 9:59 am
Er, what does that mean?
It's what it uses to store its assessment of positions it's already evaluated, so it doesn't have to evaluate them again if the same position arises in multiple variations.

E Michael White
Posts: 1397
Joined: Fri Jun 01, 2007 6:31 pm

Re: Stockfish 13

Post by E Michael White » Sun Feb 21, 2021 10:48 am

Hi Phil, The term "hash table" as used for chess engine computer programs is not the usual meaning or purpose compared to applications in general computing, although hashing techniques are used. This is similar to misuse of the word "variance" when chess ratings are discussed.

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