Does move sorting matter for zero window searches?

General discussion about computer chess...
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Tobs40
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Joined: Fri Jan 07, 2022 7:29 am
Real Name: Tobi

Does move sorting matter for zero window searches?

Post by Tobs40 » Fri Jan 07, 2022 7:36 am

Hi all,

does move sorting matter (much) for zero window searches?
I'm asking because I'm thinking about using MTD-f, an algorithm which uses zero window searches (which yield either an upper or a lower bound) to close in on the real value (until the bounds meet).
My guess would be, that it does matter, but by far not as much?

Also another question: Since zero window searches are like blazingly fast, wouldn't it be an idea to guess the value straight away with a [guess-1, guess+1] search and run N guesses in parallel? Or would this in sum always search more than MTD-f or Alpha Beta?

Best regards,
Tobi

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