Strange problem with Crafty 23.0

[Werewolf]

This refers to the J.A build of Crafty 23.0 UCI running in Fritz GUI.

When Crafty is playing black its evaluation of the position is inverted for some reason. So if black were a rook it would display a score of +5 for white.

Any idea why this is happening??

[Matthias Gemuh]

This refers to the J.A build of Crafty 23.0 UCI running in Fritz GUI.

When Crafty is playing black its evaluation of the position is inverted for some reason. So if black were a rook it would display a score of +5 for white.

Any idea why this is happening??

It is an intensional feature . Bob can say more.

Matthias.

[bob]

This refers to the J.A build of Crafty 23.0 UCI running in Fritz GUI.

When Crafty is playing black its evaluation of the position is inverted for some reason. So if black were a rook it would display a score of +5 for white.

Any idea why this is happening??

It is an intensional feature . Bob can say more.

Matthias.

Crafty reports scores using WPOV (white point of view). +5 is always good for white, -5 is always good for black. It has been that way since the first year or so of its existence.

I did not follow your second sentence (if black were a rook it...) as I am not sure whether black is a rook up or a rook down. Most GUIs have an option to tell them the program uses WPOV for scoring. If you get this wrong for Crafty, when it is playing black the score signs will be inverted.

[Graham Banks]

I'm impressed with Crafty 23.0. It's doing well in my testing so far (still early days though).

One thing I've noticed is that instead of accepting a draw by repetition, it resigns. This is under ChessGUI running it as a Winboard engine.
Matthias - I guess I need to check the box that says draws accepted/refused?

Cheers, Graham.

[Dr.Wael Deeb]

I'm impressed with Crafty 23.0. It's doing well in my testing so far (still early days though).

One thing I've noticed is that instead of accepting a draw by repetition, it resigns. This is under ChessGUI running it as a Winboard engine.
Matthias - I guess I need to check the box that says draws accepted/refused?

Cheers, Graham.

It's simply a conspiracy....Matthias is hanicapping the strong engines in his own GUI to open the path to his BigLion to join the elite group
I am amazed what are people capable of to achieve their targets,it makes me
Tears dropping regards,
Dr.D

[Graham Banks]

Matthias is hanicapping the strong engines in his own GUI to open the path to his BigLion to join the elite group

Go BigLion - yeah!

[Dr.Wael Deeb]

Matthias is hanicapping the strong engines in his own GUI to open the path to his BigLion to join the elite group

Go BigLion - yeah!

See,I'm not making things up
Dr.D

[Matthias Gemuh]

It's simply a conspiracy....Matthias is hanicapping the strong engines in his own GUI to open the path to his BigLion to join the elite group
I am amazed what are people capable of to achieve their targets,it makes me
Tears dropping regards,
Dr.D

Hi Doctor,
the reason you give is totally wrong
Correct is that I clash too often with Bob in discussions here, so ChessGUI frowns at Bob's engine

Matthias.

[Matthias Gemuh]

I'm impressed with Crafty 23.0. It's doing well in my testing so far (still early days though).

One thing I've noticed is that instead of accepting a draw by repetition, it resigns. This is under ChessGUI running it as a Winboard engine.
Matthias - I guess I need to check the box that says draws accepted/refused?

Cheers, Graham.

Hi Graham,
"accepted/rejected" is general and won't solve the draw/resign issue.
If you have a debug of such a resign, please send it to me.
Best,
Matthias.

[Graham Banks]

I'm impressed with Crafty 23.0. It's doing well in my testing so far (still early days though).

One thing I've noticed is that instead of accepting a draw by repetition, it resigns. This is under ChessGUI running it as a Winboard engine.
Matthias - I guess I need to check the box that says draws accepted/refused?

Cheers, Graham.

Hi Graham,
"accepted/rejected" is general and won't solve the draw/resign issue.
If you have a debug of such a resign, please send it to me.
Best,
Matthias.

Okay - will do so shortly.