Cutechess-Cli for Android

[Karim]

Update.
Cutechess-cli 1.2.
New:
GCC-10.2, many new patches.
Download:
https://app.box.com/s/yviql8pw3egefk9rx3fb598e4ysk4qiw

Waiting since long time to see it's gui form...

[flither]

Has anyone tried 'policy=round' command in cutechess-1.2 and earlier? It is supposed to change the opening after every round played, but it seems not working for me - opening is still changed after each game pair.

For A, B, C engines I set '-games 2', '-rounds 2' and 'policy=round' - it is playing 6 games for 1 round (A-B, B-A, A-C, C-A, B-C, C-B), so for 2 rounds =12 games. With 'policy=round' It is supposed to use one opening for each round, 2 openings in total but still seems changing after each 2 games.
Or am I doing something wrong?

[Moisanov]

Has anyone tried 'policy=round' command in cutechess-1.2 and earlier? It is supposed to change the opening after every round played, but it seems not working for me - opening is still changed after each game pair.

For A, B, C engines I set '-games 2', '-rounds 2' and 'policy=round' - it is playing 6 games for 1 round (A-B, B-A, A-C, C-A, B-C, C-B), so for 2 rounds =12 games. With 'policy=round' It is supposed to use one opening for each round, 2 openings in total but still seems changing after each 2 games.
Or am I doing something wrong?

I know its been a bug for a while in cutechess for windows. I think in Windows it is corrected since version 1.2. I don't know about android.

Maybe you could try "-tournament pyramid" instead of round-robin (or gauntlet). If there are engines A-B-C-D, I think pyramid does A vs B-C-D followed by B vs C-D and C vs D. I'am not sure how it would handle the openings throught this though (I'm not evven sure if pyramid really works like that, but it would make sense).

[Skynet]

Has anyone tried 'policy=round' command in cutechess-1.2 and earlier? It is supposed to change the opening after every round played, but it seems not working for me - opening is still changed after each game pair.

For A, B, C engines I set '-games 2', '-rounds 2' and 'policy=round' - it is playing 6 games for 1 round (A-B, B-A, A-C, C-A, B-C, C-B), so for 2 rounds =12 games. With 'policy=round' It is supposed to use one opening for each round, 2 openings in total but still seems changing after each 2 games.
Or am I doing something wrong?

Just switch to older version, i have no problem at all. As Moisanov i'm also using Cutechess 1.2 for PC, and it is a little bit tricky, i mean a lot changes has been done regarding the tournaments.

[leonhurricaneX]

[woo Found something amazing c-chess-cli a good replacement of cutechess-cli written in C and it's extremely light executable size is only 50 kb and also it have officiall Android support too.

It's main feature it runs 8 games at once in 8 threads Devices and cutechess-cli runs 3 games in my device more than twice.

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For both armv8 + armv7.
https://pixeldrain.com/l/Lf9VGtvu

ARM8 executable size is only 50kb but ARM7 is 470kb yes it's size bigger because of both are compiled using different method ARM8 is compiled using ndk-build and ARM7 using standalone toolchains now why I different method because ndk-build requires minimum API 19 to compile.

How to use , Its same as cutechess-cli

#Here is a example with Cfish and Stockfish.

$ chmod +x c-chess-cli

$ ./c-chess-cli -each tc=4+0.04 option.Hash=8 option.Threads=1 -engine cmd=./stockfish "option.Time Buffer=80" nodes=200000 -engine cmd=./cfish depth=11 -games 1920 -concurrency 8 -repeat -sprt elo0=1 elo1=5 -resign 3 700 -draw 8 10 -pgn g.pgn


Now I think Skynet you can use it in your ARM7 device in place of CFA it will speed up your tour 4x times , Last request if my armv7 binary didn't work please forgive me, I tried my best for API-16.

And there is another best thing it's very easy to build because it doesn't require QT-5 like cutechess-cli.

To discover all features of c-chess-cli
https://github.com/lucasart/c-chess-cli

SPECIAL THANKS to Mr.Vondele for helping me out .

[leonhurricaneX]

Tutorial how to use c-chess-cli on Android using Terminal Emulator.

Install Terminal Emulator from playstore and download c-chess-cli for your device.

Primary objective is to copy binaries from UCI folder of Droidfish to Home directory and I have already extracted everything in UCI folder , I will be using last CF and SF release with noob_2moves.epd only epd format is working

#Move to UCI folder and copy necessary items to Home directory.

$ cd /storage/emulated/0/DroidFish/uci
$ ls
$ cp c-chess-cli noob_2moves.epd CF-030121-arm8 Stockfish_20210112 $HOME

4 items copied from UCI folder.

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#Now move to Home directory and give permission to executables.


$ cd $HOME
$ ls
$ chmod +x c-chess-cli CF-030121-arm8 Stockfish_20210112

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#Now we can run tournament between CF and SF

$ ./c-chess-cli -each tc=10+0.10 option.Hash=16 option.Threads=1 -engine cmd=./Stockfish_20210112 -engine cmd=./CF-030121-arm8 -openings file=./noob_2moves.epd order=random -games 500 -concurrency 8 -repeat -resign 3 700 -draw 8 10 -pgn games.pgn

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Noob_2moves.epd
https://github.com/official-stockfish/books/blob/master/noob_2moves.epd.zip

You can edit this command as per your requirements and this commands will also work in Termux but Terminal Emulator is recommended because it's support multiple windows..
If any problem do not pm ask in Android discussion so anyone can have view it.

[Skynet]

Some more books.
noob_4moves.epd https://github.com/official-stockfish/books/blob/master/noob_4moves.epd.zip

noob_5moves.epd https://github.com/official-stockfish/books/blob/master/noob_5moves.epd.zip

popularpos_lichess_v3.epd https://github.com/official-stockfish/books/blob/master/popularpos_lichess_v3.epd.zip
Complete description about chess-cli options (taken from https://github.com/lucasart/c-chess-cli).

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How to use ?

c-chess-cli [-each [eng_options]] -engine [eng_options] -engine [eng_options] ... [options]

Example

./c-chess-cli -each tc=4+0.04 option.Hash=8 option.Threads=1 \
-engine cmd=demolito "option.Time Buffer=80" nodes=200000 \
-engine cmd=../Engines/critter_1.6a depth=11 \
-games 1920 -concurrency 8 -openings file=test/chess960.epd order=random -repeat \
-sprt elo0=1 elo1=5 -resign 3 700 -draw 8 10 -pgn out.pgn 2

Options

*engine OPTIONS: Add an engine defined by OPTIONS to the tournament.
*each OPTIONS: Apply OPTIONS to each engine in the tournament.
*concurrency N: Set the maximum number of concurrent games to N (default value 1).
*draw COUNT SCORE: Adjudicate the game as a draw, if the score of both engines is within SCORE centipawns from zero, for at least COUNT consecutive moves.
*resign COUNT SCORE: Adjudicate the game as a loss, if an engine's score is at least SCORE centipawns below zero, for at least COUNT consecutive moves.
*games N: Play N games per encounter (default value 1). This value should be set to an even number in tournaments with more than two players to make sure that each player plays an equal number of games with white and black pieces.
*rounds N: Multiply the number of rounds to play by N (default value 1). This only makes sense to use for tournaments with more than 2 engines.
*gauntlet: Play a gauntlet tournament (first engine against the others). The default is to play a round-robin (plays all pairs).
*with n=2 engines, both gauntlet and round-robin just play the number of -games specified.
*gauntlet for n>2: G(e1, ..., en) = G(e1, e2) + G(e2, ..., en). There are n-1 pairs.
*round-robin for n>2: RR(e1, ..., en) = G(e1, ..., en) + RR(e2, ..., en). There are n(n-1)/2 pairs.
*using -rounds repeats the tournament -rounds times. The number of games played for each pair is therefore -games * -rounds.
*sprt [elo0=E0] elo1=E1 [alpha=A] [beta=B]: Performs a Sequential Probability Ratio Test for H1: elo=E1 vs H0: elo=E0, where alpha is the type I error probability (false positive), and beta is type II error probability (false negative). Default values are elo0=0, and alpha=beta=0.05. This can only be used in matches between two players.
*log: Write all I/O communication with engines to file(s). This produces c-chess-cli.id.log, where id is the thread id (range 1..concurrency). Note that all communications (including error messages) starting with [id] mean within the context of thread number id, which tells you which log file to inspect (id = 0 is the main thread, which does not product a log file, but simply writes to stdout).
*openings file=FILE [order=ORDER] [srand=N]:
*Read opening positions from FILE, in EPD format. Note that Chess960 is auto-detected, at position level (not at file level), and FILE can mix Chess and Chess960 positions. Both X-FEN (KQkq) and S-FEN (HAha) are supported for Chess960.
*order can be random or sequential (default value).
*srand sets the seed of the random number generator to N. The default value N=0 will set the seed automatically to an unpredictable number. Any non-zero number will generate a unique, reproducible random sequence.
*pgn FILE [VERBOSITY]: Save games to FILE, in PGN format. VERBOSITY is optional
*0 produces a PGN with headers and results only, which can be used with rating tools like BayesElo or Ordo.
*1 adds the moves to the PGN.
*2 adds comments of the form {score/depth}.
*3 (default value) adds time usage to the comments {score/depth time}.
*repeat: Repeat each opening twice, with each engine playing both sides.
*sample freq[,resolvePv[,file]]. See below.

Engine options

*cmd=COMMAND: Set the command to run the engine.
*The current working directory will be set automatically, if a / is contained in COMMAND. For example, cmd=../Engines/critter_1.6a, will run ./critter_1.6a from ../Engines. If no / is found, the command is executed as is. Without /, for example cmd=demolito will run demolito, which only works if demolito is in PATH.
*Arguments can be provided as part of the command. For example "cmd=../fooEngine -foo=1". Note that the "" are needed here, for the command line interpreter to parse the whole string as a single token.
*name=NAME: Set the engine's name. If omitted, the name is take from the id name value sent by the engine.
*tc=TIMECONTROL: Set the time control to TIMECONTROL. The format is moves/time+increment, where moves is the number of moves per tc, time is time per tc (in seconds), and increment is time increment per move (in seconds).
*movetime=N: time limit per move, in seconds (can be fractional like movetime=0.123).
*depth=N: depth limit per move.
*nodes=N: node limit per move.
*option.OPTION=VALUE: Set custom option OPTION to value VALUE.

Sampling

The purpose of this feature is to the generate training data, which can be used to fit the parameters of a chess engine evaluation, otherwise known as supervised learning.

Using -sample freq[,resolvePv[,file]] will generate a csv file of samples, in this format:

fen,score,result

where score is the search result (in cp), and result is the result of the game from the side to move's perspective (0=loss, 1=draw, 2=win).

Using resolvePv=y does two things:

*First, it resolves the PV, which means that it plays the PV and reocords the position at the end (leaf node), instea of the current position (root node).
*Second, it guarantees that the recorded fen is not in check (by recording the last PV position that is not in check, if that is possible, else discarding the sample).

[Walkot]

And is it possible to connect engines designed in the form of applications? For example, Komodo.

[leonhurricaneX]

And is it possible to connect engines designed in the form of applications? For example, Komodo.

No you can't because it's an app and c-chess-cli/cutechess-cli requires executables for running tournament.

But if you want to create tournament using Komodo just extract libkomodo.so executable from .apk file of Komodo App and create tournament using executable.

[Walkot]

There are a few questions about the settings in cutechess-cli and c-chess-cli. How to register the engine options, for example, for working with the network. The engine has Use NNUE, an option with a space, make out:
option."Use NNUE"=true or otherwise? And how to specify the path to the network: option.EvalFile=???? It is also not clear whether all the settings of the engine will work or there are some restrictions.

[Skynet]

There are a few questions about the settings in cutechess-cli and c-chess-cli. How to register the engine options, for example, for working with the network. The engine has Use NNUE, an option with a space, make out:
option."Use NNUE"=true or otherwise? And how to specify the path to the network: option.EvalFile=???? It is also not clear whether all the settings of the engine will work or there are some restrictions.

For engines with embedded nets you don't need to point anything, just engine's name, option hash and option threads (cores)..

Foe engines without embedded net, add after command -> option.Threads=1 option.EvalFile=/storage/emulated/0/ + path to the net. Example

Code: Select all

option.EvalFile=/storage/emulated/0/nn-62ef826d1a6d.nnue

Make sure that the path to the net is correct, on some other devices the path is different eg /storage/emulated/legacy/ instead of /storage/emulated/0/ .

[Walkot]

There is a question! If all 8 cores are the same, but 4 operate at one frequency and 4 at another. Will this cause a delay in time? For some engines, this problem occurs even if you reduce the number of simultaneous batches to 4.This is the problem of the engine or tablet?

[SwiftSnips]

What is this illegal FEN error I keep getting? Theres no way its an illegal FEN.

[Skynet]

What is this illegal FEN error I keep getting? Theres no way its an illegal FEN.

You are talking about cutechess or c-chess?

[supersharp77]

Need a working build for {CuteChess-GUI 1.2} for android so I can do some detailed android engine testing...
Thx in Advance..kc