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Direction of play and tesuji problem 011

11 Black to play Hane 1 clings firmly to the corner territory. Black needs to get stronger on the side.

(;
GM[1]FF[4]VW[]AP[goproblems.ru]
SZ[19]
AB[eo][ep][dl][jp][dq]
AW[cq][dp][co][dn]
C[11
Black to play
Hane 1 clings firmly to the corner territory. Black needs to get stronger on the side.]
LB[cq:1]
(;B[cr]
TE[1]C[Correct answer
To get rid of the cut at A, the best way is the double hane (nidan bane) 1. This move was first suggested by Kajiwara Takeo, 9 dan.
See the continuation]
LB[eq:A]
;W[dr];B[eq];W[br];B[do];W[cp];B[er];W[cs];B[en]
C[…5,7 is the correct move order. Black’s influence after 9 is impressive. 9 could be played elsewhere, but the move is far too solid to pass up!]
LB[en:9][cs:8][er:7][cp:6][do:5][br:4][eq:3][dr:2]
)
(;B[eq]
C[Almost correct answer
Connecting at 1 is an old joseki.
See the continuation]
;W[cr];B[en]
C[…The drawback of this line is the open skirt towards the lower side (susoaki).]
LB[en:3][cr:2][eq:1]
)
(;B[er]
BM[1]C[Wrong answer
The hanging connection 1 is an awkward move.
See the continuation]
;W[fq];B[eq];W[cr];B[en]
C[…The nozoki 2 is a kikashi that White may find useful for operating \
on the side.]
LB[en:5][cr:4][eq:3][fq:2][er:1]
))

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