Is there a fen suite to ...

[Mike Sherwin]

... check the accuracy of a material only search at depth 1 to n when engine has no extensions (except for qsearch that is captures only) or reductions?

[Dann Corbit]

I don't think such a thing would make sense except for a minimax version which would not be useful.
Even alpha-beta would be hard to make repeatable unless the move ordering was somehow idealized.
And if you have pruning like null move, then the results lose their meaning.

Out of curiosity, what is it that you want to measure with such a test suite?

[Mike Sherwin]

I don't think such a thing would make sense except for a minimax version which would not be useful.
Even alpha-beta would be hard to make repeatable unless the move ordering was somehow idealized.
And if you have pruning like null move, then the results lose their meaning.

Out of curiosity, what is it that you want to measure with such a test suite?

I have a new engine, Bricabrac, that is currently a material only searcher. It does not have null move, yet. All I want to verify is at depth n does it find material truth for depth n. Thanks.

[Dann Corbit]

Is this pure wood count, or do you take material imbalance into consideration also?

[Mike Sherwin]

Is this pure wood count, or do you take material imbalance into consideration also?

Pure wood count. 100,300,300,500,900

[Ferdy]

Is this pure wood count, or do you take material imbalance into consideration also?

Pure wood count. 100,300,300,500,900

Uploaded material epds in github.

pawns.epd

Code: Select all

r4rk1/p2b2pp/1q2pb2/3p3Q/3p4/3B4/PP3PPP/R1B1R1K1 b - - ce 100;
r7/p2q1rk1/2p4p/4P1p1/1BQ1Ppb1/1P6/P1P3PP/4RRK1 w - - ce 200;

ce values are side pov. First position black is ahead by 1 pawn. In the second, white is ahead by 2 pawns.

[Mike Sherwin]

Is this pure wood count, or do you take material imbalance into consideration also?

Pure wood count. 100,300,300,500,900

Uploaded material epds in github.

pawns.epd

Code: Select all

r4rk1/p2b2pp/1q2pb2/3p3Q/3p4/3B4/PP3PPP/R1B1R1K1 b - - ce 100;
r7/p2q1rk1/2p4p/4P1p1/1BQ1Ppb1/1P6/P1P3PP/4RRK1 w - - ce 200;

ce values are side pov. First position black is ahead by 1 pawn. In the second, white is ahead by 2 pawns.

Thank you Ferdy! This should be very helpful.