(;
GM[1]
SZ[19]
AW[ic][md][nc][od][mb]
AB[dd][gc][lc][jb][oc][pc][qd][qf]
LB[jb:1]
C[Problem 36. White to play.  

How does White respond to Black 1 ? ]
(;W[kd]
TE[2]
C[Correct Answer.  

White 1 is the only move. <= ]
)
(;W[ib]
C[Failure.  

Preventing Black from linking up with 1 fails. ]
;B[jc];W[id];B[ke]
LB[jc:2]
C[Black plays 2 and 4 and the white stones on both sides come under siege. <= ]
)
(;W[jc]
C[Failure. ]
;B[kc];W[ib];B[ke]
C[<= ]
)
)
