On Mon, 10 Dec 2007, Heikki Levanto wrote:
Compare these two positions:
playout_benchmark 10000
= Initial board:
komi 7.5
A B C D E F G H J
9 . . . . . O O O O 9
8 O O O O O O O O O 8
7 O O O O O O O O O 7
6 O O O O O O O O O 6
5 # # # # # # # # # 5
4 O O O # # # # # # 4
3 O O O O . # # # # 3
2 . O O O . # # # . 2
1 # . O O . # # . # 1
A B C D E F G H J
Performance:
10000 playouts
0.032002 seconds
312.481 kpps
Black wins = 1937
White wins = 8063
P(black win) = 0.1937
My very simple UCT program (myCtest) evaluates this position (white to
move) after 10000 playouts W: 77.4% loss:
playout_benchmark 10000
= Initial board:
komi 7.5
A B C D E F G H J
9 . # . . . O O O O 9
8 O O O O O O O O O 8
7 O O O O O O O O O 7
6 O O O O O O # # # 6
5 # # # # # # # # # 5
4 O O O # # # # # # 4
3 O O O O . # # # # 3
2 . O O O . # # # . 2
1 . . O O . # # . # 1
A B C D E F G H J
Performance:
10000 playouts
0.084006 seconds
119.039 kpps
Black wins = 7746
White wins = 2254
P(black win) = 0.7746
This position (white to move, 10000 playouts) results: W: 97.5% win.
Christoph
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