Mate Engine: nomate when there is a rook on 1st file about yaneuraou HOT 5 CLOSED

I apologize for the long wait. The cause of this bug was that when magic bitboard was ported from Apery, it didn't handle the effects correctly when ROOK or BISHOP was in SQ_NB. (Apery is probably the same).

It should be fixed in the following commit.

ed796e9

from yaneuraou.

Maybe it's the effect of the most recent mate engine fix commit. There seems to be a bug about this commit, and Mr.Qhapaq is investigating it now.

from yaneuraou.

Also reproducible from YaneuraOu-mate-linux-clang++-evallearn bench 4096 1 3 test.sfen mate with test.sfen, although I haven't figured out how to run this from #123 :

4k4/9/4P4/8r/9/9/9/9/9 b Gr2b3g4s4n4l17p 1

from yaneuraou.

I am still curious whether this can be reproduced on all platforms. Pull request #123 is updated to compile for Android, MSYS2, and Linux; and results can be seen at https://github.com/ddugovic/YaneuraOu/runs/1235706415

from yaneuraou.

Apparently setting MorePreciseMatePv to false is a workaround?

from yaneuraou.