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Go tactics deal with immediate fighting between stones, capturing and saving stones, life, death and other issues localized to a specific part of the board.〔(【引用サイトリンク】title=Tactics )〕 Larger issues, not limited to only part of the board, are referred to as ''strategy'', and are covered in their own article. ==Capturing tactics== There are several tactical constructs aimed at capturing stones.〔(【引用サイトリンク】author=Sensei's Library )〕 These are among the first things a player learns after understanding the rules. Recognizing the possibility that stones can be captured using these techniques is an important step forward. A ladder. Black cannot escape unless the ladder connects to friendly stones further down the board. The most basic technique is the ladder.〔(【引用サイトリンク】author=Sensei's Library )〕 To capture stones in a ladder, a player uses a constant series of capture threats —called ''atari''— to force the opponent into a zigzag pattern as shown in the diagram to the right. Unless the pattern runs into stones along the way, the stones in the ladder cannot avoid capture. Experienced players will recognize the futility of continuing the pattern and will play elsewhere. The presence of a ladder on the board does give a player the option to play a stone in the path of the ladder, thereby threatening to rescue his stones, forcing a response. Such a move is called a ladder breaker and may be a powerful strategic move. A net. The chain of three black stones cannot escape in any direction. Another technique to capture stones is the so-called ''net'',〔(【引用サイトリンク】author=Sensei's Library )〕 also known by its Japanese name, ''geta''. This refers to a move that loosely surrounds some stones, preventing their escape in all directions. An example is given in the diagram to the left. It is generally better to capture stones in a net than in a ladder, because a net does not depend on the condition that there are no opposing stones in the way, nor does it allow the opponent to play a strategic ladder breaker. A snapback. Although Black can capture the white stone by playing at the circled point, White can then ''snap back'' by playing at 1 again. A third technique to capture stones is the snapback.〔(【引用サイトリンク】 author=Sensei's Library )〕 In a snapback, a player sacrifices a stone in order to immediately capture several opposing stones, in effect ''snapping back'' those stones. An example can be seen on the right. As with the ladder, an experienced player will not play out such a sequence, recognizing the futility of capturing only to be captured back immediately. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Go tactics」の詳細全文を読む スポンサード リンク
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