Added Middle-Eastern dominoes as independent game

[Brunozml]

Added 2v2 dominoes, also known as ME dominoes, to the repo as an independent game.

The current PR could be modified so that this is just a separate configuration of block dominoes instead of a whole new game. The game implementations vary sufficiently as to require different State classes in my opinion, but it could be done in a manner similar to tiny_bridge.

If this second course of action is suggested, I would appreciate advice on how to implement it correctly according to OpenSpiel's guidelines.

[lanctot]

Great thanks!

A few quick things:

Can you add the test to the Python CMakeLists.txt ([here](Here:

open_spiel/open_spiel/python/CMakeLists.txt

Line 218 in e5d1f09

games/block_dominoes_test.py

))

so that it runs on Github Actions CI?

[lanctot]

Also, can you add it to the list of games pyspiel_test.py here:

open_spiel/open_spiel/python/tests/pyspiel_test.py

Line 109 in e5d1f09

"python_block_dominoes",

(That is needed for general simulation tests and to check the list of games matches what is registered.)

[lanctot]

The current PR could be modified so that this is just a separate configuration of block dominoes instead of a whole new game. The game implementations vary sufficiently as to require different State classes in my opinion, but it could be done in a manner similar to tiny_bridge.

I think it's fine as a separate game since they were developed separately and also it means the complexity of each game doesn't get out of hand with all the handling of separate logic cases for each variant.

[lanctot]

Can you add the game to the games list?

This one: https://github.com/google-deepmind/open_spiel/blob/master/docs/games.md

[Brunozml]

I have updated the boilerplate code and made a few changes to the references (the Middle Eastern version is slightly different from the Latin American version so I referenced the latter).

[lanctot]

I have updated the boilerplate code and made a few changes to the references (the Middle Eastern version is slightly different from the Latin American version so I referenced the latter).

Ok, thanks. I have now triggered the tests on Github Actions.

If this is a specific variant of the more popular game, we should probably not call it just dominoes unless it supports the most widely-known "default" version of the game. What do you think about calling it latin_america_dominoes or la_dominoes or team_dominoes? (I'm referring the the main filename, e.g. changing it to latin_america_dominoes.py and the short name to python_latin_america_dominoes)

[Brunozml]

You're right, and I like team_dominoes ! I will change that as soon as the tests are done.

On a separate note, I'm now trying to work on training the best possible agent based on available OpenSpiel algorithms (or expand to other algorithms if necessary). Due to the size of the game, I'm a bit overwhelmed as to how to go about this process. Do you have any tips/resources that could be useful?

I developed tiny_dominoes locally (with two domino blocks per player instead of 7) for OpenSpiel to perhaps perform some more rapid testing, but even basic algorithms such as CFR are incredibly slow when being run locally. I'm thinking of using Google Colab's GPU service, but I haven't managed to install my local OpenSpiel version so that I can test algorithms on tiny_dominoes. Any advice helps!

[Brunozml]

updated name to team_dominoes.