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Refuting a trick play (hamete) problem 055

55 Black to play. The marked white move attacks the two black stones from the wrong side. What happens next?

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(;
GM[1]FF[4]VW[]AP[goproblems.ru]
SZ[19]
AB[qp][oo][po][np][rp]
AW[op][pp][qq][qo][ro]
;W[tt]C[55
Black to play
The marked white move attacks the two black stones from the wrong side. What happens next?]
TR[ro]
(;B[rq]
TE[1]C[Correct answer
Black must play 1.
See the continuation]
(;W[qr]
C[See the variation]
;B[qn];W[rn];B[rm];W[qm];B[pn];W[rl];B[or]
C[…Black prudently sacrifices a stone with 3 and 5 to strengthen the weak group, and then captures with 9 (this works because A is sente for Black).]
LB[pm:A][or:9][rl:8][pn:7][qm:6][rm:5][rn:4][qn:3][qr:2][rq:1]
)
(;W[nq];B[pm];W[rm];B[oq];W[pq];B[or]
C[…If White tries to gain liberties with 2, Black must defend with 3. If White then saves the group on the right side with 4, Black kills the white group below with 5.]
LB[or:7][pq:6][oq:5][rm:4][pm:3][nq:2][rq:1]
))
(;B[or]
BM[1]C[Wrong answer
The move 1 is a gift to White.
See the continuation]
;W[pq]
C[…White connects at 2 and keeps the points in the corner. Black no longer has any useful kikashi on the outside.]
LB[pq:2][or:1]
))

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