Life In 19x19
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Scoring - Could someone tell me how these are being scored?
http://www.lifein19x19.com/viewtopic.php?f=11&t=9185		 Page 1 of 1
Author:  test354 [ Thu Oct 10, 2013 12:17 pm ]
Post subject:  Scoring - Could someone tell me how these are being scored?
And what does 'White Player (White) has won this game with a score of 83 (bounded by 83 and 83)' mean?

I've read the rules of scoring extensively, and can not make sense out of how this program at the end of game is scoring everything.

Is this Japanese or Chinese?

The first image below is from a 9x9, and the total score is 83... How is that possible when there are only 81 intersections on the board?

http://s23.postimg.org/huk1ilqvv/image.png

The second image below is even more perplexing to me. It's a 19x19 and the total won score is 147.5. I counted the territories and it just doesn't add up.

http://s23.postimg.org/huk1ilqvv/image.png
Author:  DrStraw [ Thu Oct 10, 2013 12:25 pm ]
Post subject:  Re: Scoring - Could someone tell me how these are being scor
Both links are the same - pointing to a 9x9 board.

The 83 points come from:
30 dead black stones
30 points from intersections after the dead stones are removed.
12 points of open territory
11 prisoners.

The 83 is more than 81 because the 2 handicaps stones give two extra points captured.
Author:  asura [ Thu Oct 10, 2013 1:29 pm ]
Post subject:  Re: Scoring - Could someone tell me how these are being scor
test354 wrote:
Is this Japanese or Chinese?

It works with Chinese scoring, too.
There white owns the whole board (=81 points) and gets one compensation-point for each handicap stone (=2 points)
Author:  test354 [ Thu Oct 10, 2013 4:21 pm ]
Post subject:  Re: Scoring - Could someone tell me how these are being scor
I'm using as a reference this link: http://www.online-go.com/faq.php?name=rules

Here's the image of its example board: http://www.online-go.com/images/faq/example_board.gif

Quote:
Dead Stones:
If a stone or group of stones are clearly dead, and both players are aware of this, the game will normally finish by agreement with the stones left on the board. In this case, the stones are then marked as dead and treated as though they have been captured.


Quote:
In Japanese rules, white's total score would be:
16 (territory) - 2 (captured stones) + 6 (komi) = 20


If you're subtracting captured stones from the territory, then won't you get a negtative outcome?

My 9x9: 12 (territory) - 30 (captured stones) + 2 (komi) = -16

What am I missing here?
Author:  DrStraw [ Thu Oct 10, 2013 4:43 pm ]
Post subject:  Re: Scoring - Could someone tell me how these are being scor
Yes, in theory you are right about the potential negative. But as it is only the difference in score that matters it is usual to count the stones as being positive for white instead of negative for black. The end result is the same.
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