Life In 19x19

Change the board slightly. :)


$$Wc Prisoner Return
$$ --------------------
$$| 8 W 5 X O . O . 1 |
$$| X 3 X X O O O O O |
$$| X X X O O X X X X |
$$| O O O O X X . X X |
$$| O O X X X . X O O |
$$| O O X 2 X X O O 9 |
$$| O O X X 4 X O X X |
$$| O O X X X X O O X |
$$| O X X X X X O 6 7 ...

Go is a global game but territory scoring (such as in Japanese style rulesets) violates the spirit by scoring locally (unless the position has exactly one global locale). Go is NOT a "global" game per se.

It is decided by the rules to what extent the game has a global or local character.
In ...

Gérard TAILLE wrote:Do you know is some work has been done in the past, in order to try to identify clearly these one-sided dames in order to be able to exclude these points from the count?

I do not know of any original research into one sided dame, but I expect that they were known well over 1,000 years ago.

Under Spight rules with territory scoring, one sided dame are territory.
That is exactly what I meant.

$$B
$$ ----------------
$$ | . O O X O O . |
$$ | X . O X O O X |
$$ | X X O X O O . |
$$ | . . O X O O O |
$$ | O O O X O O O |
$$ | X X X X X O O |
$$ | . . . . X O . |
$$ -------------

In ...

If White has nothing better than to pass after Black takes the ko. :)
What do you mean Bill?
In any case, in the encore phase, each side takes all dead stones and each side plays her one-sided dame; finally, taking the dead stones costs nothing while taking a one-sided dame gains one point. The ...

$$W Japonese rule +1, Spight rule +3
$$ ----------------
$$ | . W X . O X . .
$$ | O X X . O X . .
$$ | O O O O O X . .
$$ | X X X X X X . .
$$ | . . . . . . . .
$$ | . . . . . . . .
$$ -------------
It is dead, but the stones are in seki, so it is not removable.
OK Bill but black has simply to ...

$$W 0 point in japonese rule and 1 point in Spight rule
$$ --------------------
$$ | O . O . X O . . . .
$$ | X O O . X O . . . .
$$ | X X X X X O . . . .
$$ | O O O O O O . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$
You are the only person I know of who calls that point a one ...

$$W Japonese rule +1, Spight rule +3
$$ ----------------
$$ | . W X . O X . .
$$ | O X X . O X . .
$$ | O O O O O X . .
$$ | X X X X X X . .
$$ | . . . . . . . .
$$ | . . . . . . . .
$$ -------------


The latter is 0 by the 1989 Japanese rules, and is the kind of mannenko position that ...

Another example of very common seki:
$$W 0 point in japonese rule and 1 point in Spight rule
$$ --------------------
$$ | O . O . X O . . . .
$$ | X O O . X O . . . .
$$ | X X X X X O . . . .
$$ | O O O O O O . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$

As you mentionned it very ...

What's the problem?
in the link https://senseis.xmp.net/?SpightJapaneseStyleRules it exist for example the following article:


That's the wrong link, as I just told you. :shock:

Yes Bill I know

Another example of very common seki:
$$W 0 point in japonese rule and 1 point in Spight rule ...

Gérard TAILLE wrote:

Bill Spight wrote:What's the problem?

in the link https://senseis.xmp.net/?SpightJapaneseStyleRules it exist for example the following article:

That's the wrong link, as I just told you.

As I keep saying, Spight rules are not Japanese rules. There is no hypothetical play, although the players may agree to the score without playing everything out. :)

There may also be a territory encore at temperature -1. :)

One way dame — liberties, not neutral points — count as territory. Also ...

As I keep saying, Spight rules are not Japanese rules. There is no hypothetical play, although the players may agree to the score without playing everything out. :)

There may also be a territory encore at temperature -1. :)

One way dame — liberties, not neutral points — count as territory. Also ...

I assume the same kind argument may be used with Spight rule
No, play out territory rules don't use "enable", that only has meaning in hypothetical analysis. With an area phase B collects the points without arguing.

As I keep saying, Spight rules are not Japanese rules. There is no hypothetical ...

The Spight rules are not Japanese rules. An encore is not necessary to resolve any dispute about life and death. :b3: can pass.

$$B
$$ ----------------
$$ | . O O X O O . |
$$ | X . O X O O B |
$$ | X X O X O O . |
$$ | . . O X O O O |
$$ | O O O X O O O |
$$ | X X X X X O O |
$$ | . . . . X O ...