player_id = -2

[blurblur12]

Hi,
I have that env = rl_environment.Environment(game="matrix_rps()")
When I run env.reset(), the current player_id is -2, which I think is not a valid player_id, I am wondering what might have caused this?

Thanks

[lanctot]

Ah yes, that is correct actually. -2 is a special player Id referring to a simultaneous move node (meaning multiple players act simultaneously), since this game is not turn-based.

BTW, for the repeated version of the game, you need to use the repeated_game game transform:

open_spiel/open_spiel/python/examples/roshambo_population_example.py

Line 192 in 03cf55f

env = rl_environment.Environment(