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3454 enclosure
Keywords: Opening
This enclosure was very much in fashion in the first half of the twentieth century, and many variations were worked out for it. For a while the tight style characteristic of early komi go led to the small low shimari being the predominant choice; but this enclosure is an integral part of contemporary go. It in fact may be considered more complex than the small low shimari; it aims more at influence and the way to play with it is more related to the 4-4 point. Compared to the 4-4 point it is clearly slower; but a double-wing formation based on it is more formidable than such a formation involving a 4-4 point in the corner (because there is no corner invasion as simple as the 3-3 invasion) and harder to reduce than such a formation based on the small low shimari. See double wing formations based on small high enclosure. The most common side patterns with an enclosure have variants with the small high enclosure:
This enclosure is important in the Chinese fuseki. See plays against low Chinese - follow-ups for a study of possibilities later in the game. See also ryojimari sides. There is a complex set of techniques concerned with invasion, reduction and probe plays near this enclosure. Unfortunately the treatment in Enclosure Josekis (out of print) isn't very reliable in its choice of main variations. There is a Go Super Series book by Okubo Ichigen called Shimari Joseki which gives many hundreds of diagrams; but it too lacks authority in parts. Therefore, although there is much material scattered through the literature, it seems that really reliable information must come from database research.
BobMcGuigan: The book Keshi and Uchikomi - Reduction and Invasion in Go by Iwamoto has a lot of information related to the one-space high shimari.
Queries about Enclosure Josekis 1 This is a copy of the living page "3454 enclosure" at Sensei's Library. ![]() |