Distance mate pruning conflicts with EGTBs

[Cardoso]

Hi everyone,
I have distance mate pruning, but if I use EGTBs my engine gives away material and looses immediately.
Does anyone solved this problem?

thanks in advance,
Alvaro

Code: Select all

        alpha = Max(alpha, -MATE + ply);
        beta = Min(beta, MATE - ply - 1);
        if (alpha >= beta)
            return(alpha);

[zamar]

Hi everyone,
I have distance mate pruning, but if I use EGTBs my engine gives away material and looses immediately.

Sounds like there is a problem with your EGTB probing implementation... Mate distance pruning should work just fine EGTBs.