Issue 42 in gray-matter: Re8 was played, but what happened afterwards?
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Owner: jonne.zutt
Labels: Type-Defect Priority-Medium
New issue 42 by jonne.zutt: Re8 was played, but what happened afterwards?
http://code.google.com/p/gray-matter/issues/detail?id=42
Something goes wrong here, I worked on it tonight, but could not yet fix it.
setboard 3R4/8/8/8/8/8/4p1K1/4k3 w - - 0 1
go
gm plays d8e8 (Re8), which is good
usermove e1d1 (Kd1).
gm plays g2f2 (Kf2), which is good
here i switch sides by entering go
gm played d1d2 (Kd2), which is good, promoted piece would be captured
anyways.
I move my white's rook to b8 because I want gm to promote, so:
usermove e8b8 (Rb8)
Now gm played e2e3 (Kd3), which is very bad...
e1=Q+ should've been played instead.
*** the debug output for this last bad Kd3 move is:
usermove e8b8
Kd3 (Kf3): max of 18 children: 512.
(Kd3): max of 8 children: -512.
search_base::change changes state from PONDERING to THINKING.
search_base::start doing requested work (hash = 2d422809161b5a4c, status =
THINKING).
: Setting alarm to 788 csecs from now.
: Iterative deepening maxdepth set to 1.
: Iterative deepening maxdepth set to 2.
: Iterative deepening maxdepth set to 3.
: Iterative deepening maxdepth set to 4.
: Iterative deepening maxdepth set to 5.
: Iterative deepening maxdepth set to 6.
: Iterative deepening maxdepth set to 7.
Kd3 (Rb4): max of 22 children: 507.
Kc3 (Kg2): max of 22 children: 507.
Ke3+: terminal state 6.
Kd1 (Kg2): max of 22 children: 507.
Ke1+: terminal state 6.
Kc2 (Kxe2): max of 22 children: 507.
e1=N (Rd8+): max of 22 children: 218.
e1=B+ (Kf3): max of 22 children: 199.
e1=R (Rd8+): max of 22 children: 497.
e1=Q+ (Kf3): max of 22 children: -870.
(e1=Q+): max of 11 children: 870.
move d2d3
search_base::change changes state from THINKING to PONDERING.
search_base::start doing requested work (hash = 2d422809161b5a4c, status =
PONDERING).
*** end of debug output
I'm a bit lost here:
+ it says max of 11 children while i see only 10, ok, Kc1 is missing
somehow, it might be possible
i forget to print the first or last move in debugging code.
+ why does it play Kd3 if it says e1=Q+ is the max?
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Status: Fixed
Comment #1 on issue 42 by jonne.zutt: Re8 was played, but what happened
afterwards?
http://code.google.com/p/gray-matter/issues/detail?id=42
Cannot reproduce anymore.