The book begins with a selection of common josekis for use in handicap games. These
are relevant even today.
The book begins with a selection of common josekis for use in handicap games. These
are relevant even today.
Here is one tesuji-rich example. Genbi invites the reader to learn Black 6.
However, one of the more interesting examples in this section is the pattern below. You will probably recognise it as the start of a famous trap, and also from Honinbo Dosaku's first game with the Ryukyuan Peichin of Hamahiga in 1682. It is usually presented as a great brainwave by Dosaku, and he may well have invented it. But the examples given by Genbi suggest it was well researched (and it does appear in quite a few games in the GoGoD database), and not something Dosaku discovered during play. It would have been reckless, anyway, to play something totally new in such an important game.
This pattern had a standard name, the Double Attachment (ryozuke). This book may also be the earliest occurrence of terms such as the tsukenobi and tsukegiri josekis.
These terms are still used today. But what you probably call the takamoku joseki was
then known as omoku (the 5-4 point), as in this slightly unusual variation at left.
In Genbi's day, the joseki below was what they called takamoku, i.e. it was the high approach move White 2. This is far from the only case of terms that have changed in usage over the years. This particular joseki is common-or-garden nowadays but was very rare in published records in Genbi's day. Our first example is 1784 but it did not become at all popular until the very end of the 19th century.
Genbi gives a rather good selection of pincer josekis in this volume, but not a single example of a pincer against this takamoku. The only other response he shows is attachment on the outside.