I checked this position again, and Many Faces finds j3 after a few thousand
playouts, but even at a million playouts (28 seconds) it's only 61%.
From: computer-go-boun...@computer-go.org
[mailto:computer-go-boun...@computer-go.org] On Behalf Of Brian Sheppard
Sent: Saturday, August 15, 2009
On Sat, Aug 15, 2009 at 09:13:02AM -0600, Brian Sheppard wrote:
assuming komi 7.5 and Chinese rule, playing at J3 white will win. After J3,
white has 35. It only needs to win the ko or takes two dames. If black
fills
the dame, it loses the ko. If it fills the ko, white can take two dames.
Petr Baudis wrote:
1 2 3 4 5 6 7 8 9
A - - O - - - - - -
B X X X O X - - - -
C O O X O X X - - -
D O - O X X - X X -
E - O O O X X O X X
F - X O - X O O O X
G - X O - X O O - O
H O X O - X X O O -
J - - - O X - X O -
O to play
I don't see how J3 works, black still can win the ko,
Valkyria plays J3 or capture the ko, with capturing the ko as the most
common choice. But it always thinks for some thousands of playouts
before it sees a clear win.
Magnus
Quoting David Fotland fotl...@smart-games.com:
I checked this position again, and Many Faces finds j3 after a few
In message 18d95a4b0a2748e39855f882ed6ce...@inspirone1705, Brian
Sheppard sheppar...@aol.com writes
1 2 3 4 5 6 7 8 9
A - - O - - - - - -
B X X X O X - - - -
C O O X O X X - - -
D O - O X X - X X -
E - O O O X X O X X
F - X O - X O O O X
G - X O - X O O - O
H O X O - X X O O -
J - - - O X - X O
assuming komi 7.5 and Chinese rule, playing at J3 white will win. After J3,
white has 35. It only needs to win the ko or takes two dames. If black fills
the dame, it loses the ko. If it fills the ko, white can take two dames.
On Fri, Aug 14, 2009 at 12:56 PM, Nick Wedd n...@maproom.co.uk wrote:
Many Faces thinks X wins if X moves first (85%), but unclear if white moves
first (51%) with no change after huge numbers of playouts. Good test
position. I've seen from KGS games that Many Faces does not handle endgame
kos very well. This is another example.
David
-Original Message-
