reversed-color transpositions

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jack512
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reversed-color transpositions

Post by jack512 » Fri Mar 11, 2016 6:31 pm

Do today's engines check for reversed-color transpositions in their transposition table? I'm guessing they don't, since these would only tend to happen near the starting position, where the opening book is being used instead of search.

matthewlai
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Re: reversed-color transpositions

Post by matthewlai » Fri Mar 11, 2016 6:32 pm

jack512 wrote:Do today's engines check for reversed-color transpositions in their transposition table? I'm guessing they don't, since these would only tend to happen near the starting position, where the opening book is being used instead of search.
No they don't, and yes that's why.
Disclosure: I work for DeepMind on the AlphaZero project, but everything I say here is personal opinion and does not reflect the views of DeepMind / Alphabet.

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Nordlandia
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Re: reversed-color transpositions

Post by Nordlandia » Fri Mar 11, 2016 6:33 pm

In Fritz gui nowadays i can confirm it mirrors positions for white and black.

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