Kobayashi Opening Part 3

Kobayashi Part 3

Secondary Sequence 2

It is more modern to extend up to 1 than at R9 , thus emphasizing the center . Indeed, White 1 here appears more often than White A in modern Baduk. Black 2 and White 3 generally follow,but Black 4 is rather new. Before the advent of this move, Black just kept the lower side with 6 abd yielded sunsoo to White. By virtue of Black 4, Black can noww force White to add another stone on the left side with 7.

Diagram 1

If White omits the jump at 3 in Secondary Sequence 2 , then Black's invasion at 1 will be very fierce. Cut aprt to 5, it will be very difficult for White to settle the situation

Diagram 2

It is possible for White to respond to Black 1 with 2 if  the ladder created by the sequence Black A , White B, Black C , and White D works,but then Black will get to play a ladder breaker

Diagram 3

It is also possible for White to push at 1, but a the right time , Black can gain territorial profit with moves form 2 to 8.

Diagram 4

If White didn't protect the left side with 7 in Secondary Sequence 1 , Black 1 would be a good attack here. If White blocks at 2 , Black will come out with moves form 3 to 11 .

Diagram 5 

Continuing from the last sequence , up to 23 , Black succeeds in creating White's weaknesses at A and B.

Diagram 6

So,the best thing White can do is to push at 2. But this result is not satisfactory, either ,

 because Black will take a soid territory on the right side in sunsoo

Diagram 7

After white plays (triangle) Black can still activate his stone on the right side with 2 and 4 ,Black hollows out White's territory up to 7 .

Diagram 8

So , the strongest and best response for White is to bend solidly at 1 . When white covers the outside with 11..

Diagram 9

Although Black can capture the Whites on the side up to 13 , White doesn't need to complain because  he has sunsoo and there also remains a possibility for him to make a two step pae with A