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Invading deep enough
Difficulty: Intermediate Keywords: MiddleGame
This page deals with an invasion, which might appear even in an early stage of the game. It is especially likely in high handicap games.
White was able to attack a 4473 enclosure with an ikken tobi and is faced with the question how to invade. He might boldly come in at a, or he might opt for the more quiet b.
b might be the "natural" choise of an intermediate player, but a was suggested by Takagawa Kaku, in a German book. (Band 16 der Schriftreihe des Deutschen Go-Bundes),
Main sequence:
This crosscut is an important position, which can be reached by both invasions. White might as well start with
If Black stretches at
White is unlikely to get a better result from the crosscut, as this diagram indicates.
Avoiding the crosscut
a) light invasion
It seems like White will be able to settle his stones even easier than in the crosscut variation.
White has settled his shape, but it does not look like a success to me.
Warning: We still need the comment of a strong player on this variation!
b) deep invasion
If
At least, Black seems to have this possibility to achieve a different crosscut, which might cause some problems.
Maybe this works, but the ikken tobi is under attack now, so White will not be too happy.
Maybe this? Examples:
A) Takagawa Kaku presents the following position in a chapter about "How to answer a boshi":
He mentions, that
After
If Black moves out to the other side,
A very similar problem was found in Pro common sense that even amateurs can acquire, which recommended B) amateur game
Luckily not knowing Takagawa's proposal yet, White initiated the following sequence:
This sequence is a success for White. He started out with a group of weak stones which are now living with territory.
The light invasion seemed to be okay. Black should have played Contributed by: Andre Engels Charles Floris? kokiri Sebastian Karl Knechtel Klaus This is a copy of the living page "Invading deep enough" at Sensei's Library. ![]() |