Re: Re: [Bug-gnubg] Command-line bug ?

[Massimiliano . Maini]

>You may turn on a log of all games in a rollout. If you do so you
>observe that the error when using the cli is caused by gnubg not
>doubling on the first turn as it should. Later doubles for both
>players are made correctly (not relevant for this position) and
>anything else you may think of is seemingly correct.

Right, even Jon's hypothesis of a problem due to truncation to
exact bearoff/one-sided databases is wrong (I disabled the option
and the outcome didn't change).

>Is it possible
>that the rollout position is initialized so that gnubg skips the
>doubling decision?

It shouldn't be. The only thing I can imagine is if it is rolled as
an "initial position", but it doesn't make sense, especially since
the GUI version gets it right !

On the bug-tracker there's a patch proposed by Michel Delpreli : Jon
said it didn't solve the problem, but if you understand the intended
modification maybe you can get a clue at what's happening ...


MaX.