Secondary Sequence 4
Black 1 intends not so much to attack White to (triangle) but to sound out White's response. This move appears in actual games very rarely. White 2 to 6 are the normal way settling the situation . After 7 , White will attack Black 1 with A or B
If Black links the corner with the side with moves 5 and 3 , White can then develop the lower side with 8
Diagram 4
If Black dosen't like the result of the previous diagram , he must bend at 3 when White attaches at 3 in Diagram 2 . Up to 6 , both players have strong side positions.
Diagram 1
Here, it is out of the question for White to attach at 1. Thus cut , White will be in trouble.
Diagram 2
It is also possible for White to attach at 2 instead of jumping at4 ,as in Secondary 4 After White 6...
Diagram 3
If Black links the corner with the side with moves 5 and 3 , White can then develop the lower side with 8
Diagram 4
If Black dosen't like the result of the previous diagram , he must bend at 3 when White attaches at 3 in Diagram 2 . Up to 6 , both players have strong side positions.
Diagram 5
It is not good for Black to extend at 1 , because White can freely attack the one black stone on the right side with 6 after strengthening the corner up to 4. Besides, the Blacks in the corner are not completely safe yet.
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