My English is very bad, sorry in advance.
I'm reading official AGA (
link) go rules and I have a problem with the formal definition of territory.
Please see the diagram and follow my deliriums.
- Click Here To Show Diagram Code
[go]$$
$$ ------------------
$$ | ? ? ? ? X . . . .
$$ | ? ? ? ? X . . . .
$$ | ? ? ? ? X . . . .
$$ | ? ? ? ? X . . . .
$$ | X X X X a : . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | X X X X . : . . .
$$ | W W W W 1 . . . .
$$ | W W W W X . . . .
$$ | W W W W X . . . .
$$ | W W W W X . . . .
$$ ------------------[/go]
Rule 5:
Quote:
Capture: Stones of the same color are said to be connected if they are adjacent
along horizontal or vertical--not diagonal--lines on the board. A string of
connected stones consists of those stones which can be reached from a given
stone by moving only to adjacent stones of the same color. A string of connected
stones is surrounded by stones of the opposite color if it has no empty points
horizontally or vertically--not diagonally--adjacent to any of its member stones.
(Such adjacent empty points are known as liberties of the string.)
After a player moves, any stone or string of stones belonging to the opponent
which is completely surrounded by the player's own stones is captured, and
removed from the board. Such stones become prisoners of the capturing player.
According to this rule, after the move 1, the white stones marked with the red circles have no liberties therefore they are surrounded and I can remove them. So far so good.
Rule 9:
Quote:
Ending the Game: Two consecutive passes signal the end of the game. After
two passes, the players must attempt to agree on the status of all groups of
stones remaining on the board. Any stones which the players agree could not
escape capture if the game continued, but which have not yet been captured and
removed, are termed dead stones. If the players agree on the status of all such
groups, they are removed from the board as prisoners of the player who could
capture, and the game is scored as in Rule 12. If there is a disagreement over the
status of some group or groups, play is resumed as specified in Rule 10.
Rule 12:
Quote:
Counting: There are two methods for counting the score at the end of the
game. One is based on territory, the other on area. The players should agree in
advance of play which method they will use. If there is no agreement, territory
counting shall be used.
(Although players' scores may differ under the two methods, the difference in their
scores, and hence the game result, will be the same.)
Territory: Those empty points on the board which are entirely surrounded by live
stones of a single color are considered the territory of the player of that color.
(At the end of the game, the empty points remaining on the board fall into regions. A
region is the smallest set of empty points containing a given empty point and any empty
points adjacent to any empty point in the set. That is, a region consists of those empty
points which can be reached from a given empty point by moving only to adjacent
empty points. A region is entirely surrounded by stones of a single color if the only
stones adjacent to empty points in the region are of that color.
Now watch the shaded zone of the first diagram, according to my interpretation of the rules, after the agreement phase, it is black territory because it is totally surrounded (horizontally or vertically not diagonally) by black stones. This is the problem. Now I thought that to totally surround the zone and to do territory playing in the point a (is it a teire right?) was required.
Is my interpretation of the rule right? Which of the following zones are formally surrounded and therefore territories?
- Click Here To Show Diagram Code
[go]$$.
$$ ---------------------------------------
$$ | ? X . . . . . . . . . . . . . . . X ? |
$$ | X . . . . . . . . . . . . . . . . X X |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . X X X . . . . . . . X X X X X . . |
$$ | . X ? ? ? X . . . . . . X ? ? ? X . . |
$$ | . X ? ? ? X . . . . . . X ? ? ? X . . |
$$ | . X ? ? ? X . . . . . . X ? ? ? X . . |
$$ | . . X X X . . . . . . . X X X X X . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
What is the state in japanese and chinese rules?
Thank you. Have a nice day and sorry for bad English.