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Thickness
Path: AllAboutInfluence   · Prev: Influence   · Next: Atsumi
Path: InvasionItinerary   · Prev: Moyo   · Next: Mochikomi

  Difficulty: Advanced   Keywords: Strategy, Go term

Thickness = Strength + Influence

Atsumi is a Go term meaning "(the influence of) strong stones". We translate it into English with the word thickness. In order to be thick, a group of stones must be strong and it must have influence in a certain direction.

Thickness, strength and influence are often used as synonyms of each other, hence the discussion mentioned above.

Strength

A [[strong group]] is a group with no defects: the stones belonging to the group are connected and have sufficient potential for eyespace. Strength is the local property of a group of stones to stand on its own, the ultimate strength being the group living regardless of what the opponent plays in the neighbourhood.

Influence

Each stone has a certain influence on the board. Captured stones have an influence close to zero. Surrounded stones that make a live group, influence only the surrounding group. Stones that are in open space have an influence on that open space and the stones bordering that open space. Influence is a long range effect. For example: a ladder breaker changes the balance in the opposite corner.

  • The stronger a group, the greater its influence on a neighbouring area.
  • The more open the neighbouring area, the greater the group's influence.
  • The weaker the other groups neighbouring that area, the larger the group's influence.

In Go, maintaining the balance of territory and thickness is very important.

Further reading and discussion


Authors: FCS, HolIgor, MortenPahle, AlainWettach, DieterVerhofstadt




Path: AllAboutInfluence   · Prev: Influence   · Next: Atsumi
Path: InvasionItinerary   · Prev: Moyo   · Next: Mochikomi

This is a copy of the living page "Thickness" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.