uci eval command

[elcabesa]

thank you all

[lucasart]

hi,
Stockfish implement a non standard uci command "Eval" that help debugging the engine. I have impemented it in Vajolet too.

The Eval debug print the static eval of the position and it also print some term of th evaluation. Do you know any other engine (UCI if possibile) implementing this command or a sort of it?

I know I can use a search at depth1 and take the cp but it's not like the static eval

DiscoCheck also responds to the "eval" command, but it's not as well implemented as in SF. It just displays the board (equivalent to SF's "d" command) and the eval with no details. Example:

Code: Select all

$ uci
id name DiscoCheck 5.2.1
id author Lucas Braesch
option name Hash type spin default 16 min 1 max 8192
option name Clear Hash type button
option name Contempt type spin default 25 min 0 max 100
option name Ponder type check default false
option name Time Buffer type spin default 100 min 0 max 1000
uciok
$ isready
readyok
$ ucinewgame
$ position startpos moves e2e4 c7c5
$ eval
 r n b q k b n r
 p p . p p p p p
 . . . . . . . .
 . . p . . . . .
 . . . . P . . .
 . . . . . . . .
 P P P P . P P P
 R N B Q K B N R
rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - 0 2
eval = 15
$ quit

[jdart]

Arasan has an "eval" command but only in Winboard mode (not UCI). It takes a file as argument containing a FEN position.

If you compile the scoring module with debug flags (PAWN_DEBUG and/or EVAL_DEBUG) it also dumps a lot of details about the eval process.

--Jon

[hgm]

In Spartacus I just print the eval info as thinking output, before the first depth 1 PV. Then I don't have to mess with command line, but can monitor them through the GUI.

[Ajedrecista]

Hello Marco:

hi,
Stockfish implement a non standard uci command "Eval" that help debugging the engine. I have impemented it in Vajolet too.

The Eval debug print the static eval of the position and it also print some term of th evaluation. Do you know any other engine (UCI if possibile) implementing this command or a sort of it?

I know I can use a search at depth1 and take the cp but it's not like the static eval

Critter also has it. Just open the executable and write psq:

Code: Select all

Critter v1.6a 32-bit, by Richard Vida
hardware POPCNT disabled
psq
             | Score | White     Mg     Eg | Black     Mg     Eg
-------------+-------+---------------------+--------------------
        pawn | +0.00 | -0.77  -0.77  -0.79 | +0.77  +0.77  +0.79
        king | +0.00 | -0.01  -0.01  -0.28 | +0.01  +0.01  +0.28
      knight | +0.00 | -0.85  -0.85  -0.34 | +0.85  +0.85  +0.34
      bishop | +0.00 | -0.22  -0.22  -0.03 | +0.22  +0.22  +0.03
        rook | +0.00 | -0.12  -0.12  +0.00 | +0.12  +0.12  +0.00
       queen | +0.00 | -0.07  -0.07  -0.07 | +0.07  +0.07  +0.07
-------------+-------+---------------------+--------------------
       total | +0.00 | -2.06  -2.06  -1.53 | +2.06  +2.06  +1.53

Good luck with the development of Vajolet2.

Regards from Spain.

Ajedrecista.

[Evert]

In Spartacus I just print the eval info as thinking output, before the first depth 1 PV. Then I don't have to mess with command line, but can monitor them through the GUI.

Funny. I have a special "eval" command (and others) so I can work from the command line and don't have to mess with a GUI.

[asanjuan]

Rhetoric also has a non-standard eval command.

the usage is like this:

Code: Select all

Rhetoric 1.4.3 Beta x64 UCI by Alberto Sanjuan, Spain
position startpos moves d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2
eval

returns

Code: Select all

eval -17

[elcabesa]

Hello Marco:

hi,
Stockfish implement a non standard uci command "Eval" that help debugging the engine. I have impemented it in Vajolet too.

The Eval debug print the static eval of the position and it also print some term of th evaluation. Do you know any other engine (UCI if possibile) implementing this command or a sort of it?

I know I can use a search at depth1 and take the cp but it's not like the static eval

Critter also has it. Just open the executable and write psq:

Code: Select all

Critter v1.6a 32-bit, by Richard Vida
hardware POPCNT disabled
psq
             | Score | White     Mg     Eg | Black     Mg     Eg
-------------+-------+---------------------+--------------------
        pawn | +0.00 | -0.77  -0.77  -0.79 | +0.77  +0.77  +0.79
        king | +0.00 | -0.01  -0.01  -0.28 | +0.01  +0.01  +0.28
      knight | +0.00 | -0.85  -0.85  -0.34 | +0.85  +0.85  +0.34
      bishop | +0.00 | -0.22  -0.22  -0.03 | +0.22  +0.22  +0.03
        rook | +0.00 | -0.12  -0.12  +0.00 | +0.12  +0.12  +0.00
       queen | +0.00 | -0.07  -0.07  -0.07 | +0.07  +0.07  +0.07
-------------+-------+---------------------+--------------------
       total | +0.00 | -2.06  -2.06  -1.53 | +2.06  +2.06  +1.53

Good luck with the development of Vajolet2.

Regards from Spain.

Ajedrecista.

psq code does eval the position or it print out some partial results?

[Fabio Gobbato]

critter supports the eval command too.

[Robert Pope]

On a related note, I would like to run a large number of epd positions through one of the better engines and collect the static evaluation (or, barring that, a one ply search), so I can identify positions where my own program's evaluation is significantly different. Is there maybe already a tool that could do that?