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MOVE
- A player chooses a stone and slides it along an orthogonal line by
a number of empty cells (just like the chess rook movement). |
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CAPTURE
- A stone or set of stones are captured if they are trapped between
two enemy stones along a straight row or column (i.e., custodian
capture).
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Any
captured stone is removed and replaced by stones of the other
color. |
|
A
stone may move between two opponent stones on a straight line
without being captured. |
|
Stones
on the corner cannot be captured. |
|
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KO
- A player cannot make a move that repeats a previous position. |
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SECURITY
- An area (i.e., a set of cells) is secured if there is no way for
the opponent to capture any part of it. |
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PASS
- A player may pass his turn. If both players pass, the game
ends (all areas become secured). |
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GOAL
- A player wins if he secures an area larger than half the board
(empty cells plus cells with his own stones).
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If
there are some cells not secured by no player, these are not
counted as part of the total board area. |
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