Critter and new UCI parameters?

[Jouni]

New UCI options:

"GTB Path": Folder where tablebase files are located (default value: \gtb)
"GTB Cache": Size of tablebase cache in magabytes (dafault 32)
"GTB Compression": tablebase compression scheme (default "cp4")

"GTB Usage":
"Disable": Turn off tablebase probing. Useful for debugging/troubleshooting
"Only At Root": This does not slow down the search and allows for optimal play with less than 6 pieces left on the board
"Everywhere": Probe tablebases in search tree. IMO it is worth only for analysis. While it helps in some positions, it slows down the search too much and the engine is actually _weaker_ with this setting.

I don't se any of these in UCI parameters windows: do I need special GUI or Winboard interface?

Jouni

[Werner]

Hi Juoni,
I see them all inside Shredder GUI and Arena.
Here an example of my settings found in ArenaENG.cfg:

[Critter_0.70_64bit]
Hash=64
Ponder=false
OwnBook=true
MultiPV=1
Threads=2
Minimum Split Depth=5
GTB Path=\gtb
GTB Cache=32
GTB Compression=cp4
GTB Usage=Only At Root

[rvida]

New UCI options:

"GTB Path": Folder where tablebase files are located (default value: \gtb)
"GTB Cache": Size of tablebase cache in magabytes (dafault 32)
"GTB Compression": tablebase compression scheme (default "cp4")

"GTB Usage":
"Disable": Turn off tablebase probing. Useful for debugging/troubleshooting
"Only At Root": This does not slow down the search and allows for optimal play with less than 6 pieces left on the board
"Everywhere": Probe tablebases in search tree. IMO it is worth only for analysis. While it helps in some positions, it slows down the search too much and the engine is actually _weaker_ with this setting.

I don't se any of these in UCI parameters windows: do I need special GUI or Winboard interface?

Jouni

Tablebase related options will only appear if gtb32.dll (in 32bit windows) or gtb64.dll (in 64bit windows) is available in the same folder as the engine executable.

Try running the engine outside the GUI, directly double-clicking it in explorer to see if it can load this dll. It should at least give an error code in case of failure.

Richard

[Jouni]

Thanks that helped!

Great engine and beats easily Spark (60/3'):

1 Critter 0.70 64-bit 56.5/92 (+80)
2 spark-0.4 35.5/92

Jouni

[Matthias Gemuh]

New UCI options:

"GTB Path": Folder where tablebase files are located (default value: \gtb)
"GTB Cache": Size of tablebase cache in magabytes (dafault 32)
"GTB Compression": tablebase compression scheme (default "cp4")

"GTB Usage":
"Disable": Turn off tablebase probing. Useful for debugging/troubleshooting
"Only At Root": This does not slow down the search and allows for optimal play with less than 6 pieces left on the board
"Everywhere": Probe tablebases in search tree. IMO it is worth only for analysis. While it helps in some positions, it slows down the search too much and the engine is actually _weaker_ with this setting.

I don't se any of these in UCI parameters windows: do I need special GUI or Winboard interface?

Jouni

Tablebase related options will only appear if gtb32.dll (in 32bit windows) or gtb64.dll (in 64bit windows) is available in the same folder as the engine executable.

Try running the engine outside the GUI, directly double-clicking it in explorer to see if it can load this dll. It should at least give an error code in case of failure.

Richard

Richard,

did you read this ?
http://www.talkchess.com/forum/viewtopi ... 582#350582

Matthias.

[rvida]

New UCI options:

"GTB Path": Folder where tablebase files are located (default value: \gtb)
"GTB Cache": Size of tablebase cache in magabytes (dafault 32)
"GTB Compression": tablebase compression scheme (default "cp4")

"GTB Usage":
"Disable": Turn off tablebase probing. Useful for debugging/troubleshooting
"Only At Root": This does not slow down the search and allows for optimal play with less than 6 pieces left on the board
"Everywhere": Probe tablebases in search tree. IMO it is worth only for analysis. While it helps in some positions, it slows down the search too much and the engine is actually _weaker_ with this setting.

I don't se any of these in UCI parameters windows: do I need special GUI or Winboard interface?

Jouni

Tablebase related options will only appear if gtb32.dll (in 32bit windows) or gtb64.dll (in 64bit windows) is available in the same folder as the engine executable.

Try running the engine outside the GUI, directly double-clicking it in explorer to see if it can load this dll. It should at least give an error code in case of failure.

Richard

Richard,

did you read this ?
http://www.talkchess.com/forum/viewtopi ... 582#350582

Matthias.

Yes, I have read it. I guess this is my reward (punishment?) for being an early adopter
There was no standard nor any recommendation, and I _had_ to give some names for these uci options. Now after critter 0.70 was released, You and Miguel have agreed on a naming convention...

Of course I will rename them (in the next release). But please be fair, and don't make it sound that I had done something wrong.

Richard

[michiguel]

New UCI options:

"GTB Path": Folder where tablebase files are located (default value: \gtb)
"GTB Cache": Size of tablebase cache in magabytes (dafault 32)
"GTB Compression": tablebase compression scheme (default "cp4")

"GTB Usage":
"Disable": Turn off tablebase probing. Useful for debugging/troubleshooting
"Only At Root": This does not slow down the search and allows for optimal play with less than 6 pieces left on the board
"Everywhere": Probe tablebases in search tree. IMO it is worth only for analysis. While it helps in some positions, it slows down the search too much and the engine is actually _weaker_ with this setting.

I don't se any of these in UCI parameters windows: do I need special GUI or Winboard interface?

Jouni

Tablebase related options will only appear if gtb32.dll (in 32bit windows) or gtb64.dll (in 64bit windows) is available in the same folder as the engine executable.

Try running the engine outside the GUI, directly double-clicking it in explorer to see if it can load this dll. It should at least give an error code in case of failure.

Richard

Richard,

did you read this ?
http://www.talkchess.com/forum/viewtopi ... 582#350582

Matthias.

Yes, I have read it. I guess this is my reward (punishment?) for being an early adopter
There was no standard nor any recommendation, and I _had_ to give some names for these uci options. Now after critter 0.70 release You and Miguel have agreed on a naming convention...

Of course I will rename them (in the next release). But please be fair, and don't make it sound that I had done something wrong.

Richard

Of course not. It was my fault. People asked me here in the forum (I am almost sure it was Matthias), I had not idea what so say, and we came up with a name. I should have documented somewhere rather than leaving it as a comment here.

Miguel

[Matthias Gemuh]

did you read this ?
http://www.talkchess.com/forum/viewtopi ... 582#350582

Matthias.

Yes, I have read it. I guess this is my reward (punishment?) for being an early adopter
There was no standard nor any recommendation, and I _had_ to give some names for these uci options. Now after critter 0.70 was released, You and Miguel have agreed on a naming convention...

Of course I will rename them (in the next release). But please be fair, and don't make it sound that I had done something wrong.

Richard

I and Miguel actually agreed on this "long ago", when Daydreamer used gtb options that looked very different from Nalimov options.
The agreement was unfortunately only in programmers sub-forum, and not in gtb files.

Matthias.