boundary
The proponent boundary is comprised of those stones necessary to delineate and hold the proponent territory. The opponent boundary is comprised of those stones necessary to delineate and hold the opponent territory. Except for seki, after dame has been filled, the opposing boundaries are adjacent to each other. The diagram shows the end of a game after dame has been filled. The respective boundaries are indicated by crosses. Note that the marked white stone next to A is an integral part of the boundary, necessary to protect against a cut. However, not all stones form part of the boundary but, at the time they were played, they might have been a necessary step in order to establish the boundary in its final place. During play, envisioning where the boundary might form is an important skill - see notional boundary. |
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