Joseki

With the Play of go, a joseki (定石 or 定式 in Chinese) is a traditional sequence. The most used are those of corner, mainly at the beginning of part ( Fuseki ), but there exist joseki of edge and they can be useful throughout the part.

It is in theory a sequence locally equitable for the two players, but in practice, it is necessary to take into account the total situation on the Goban to play the good alternative. There is of it a very great number and new joseki can be created if a sequence played between strong players seems equitable and that it is then re-used in other parts.

The control of an exhaustive list of alternatives of joseki requiring a great experiment, a player can try a Hamete at the time of the sequence. It is about an alternative “trap” which penalizes the adversary severely. But if this last manages to refute the trap, the Hamete is turned over then against its instigator. In both cases, the joseki is not then equitable any more, with more or less large scales.

In its book has off Way Play for the 21st Century , the large player Go Seigen compares the choice of the good joseki with the choice of the good drug: “ Pick the right one, and you feel better. Pick the wrong one, and you die. ” In the same way, the player of Chinese origin Naiwei Rui 9th daN notices that “ playing joseki is easy choosing the right one has range) is hardware. ''”

Classification of the joseki

The joseki are classified according to their starting position. Thus the joseki of corners are located by their first stone ( Hoshi , items (3,4), (3,3), (3,5) etc, Then, they are subdivided according to the characteristics of their alternatives.

Sources

Kosugi Kiyoshi & James Davies; 38 BASIC Joseki , Kiseido
Naiwei Rui, Essential Joseki , Yutopian Enterprises, 1998

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