(;
GM[1]
SZ[19]
AW[jc][fd][fc][qd][re]
AB[dd][df][ec][mc][pd][qe][pe][qj]
LB[pe:2][re:1]
C[Problem 136. White to play.  

Black answers White 1 by connecting at 2. What is White's next move ? ]
(;W[rd]
TE[2]
C[Correct Answer.  

White 1 is the best move. ]
;B[rf]
C[If Black blocks with 2, ... ]
;W[pc];B[oc];W[pb]
LB[pc:3]
C[... White lives in the corner with 3 and 5. <= ]
)
(;W[qc]
TE[2]
C[Correct Answer.  

If White plays 1, ... ]
;B[rf]
LB[qc:1]
C[... Black blocks at 2. In certain positions, White 1 could be a good move. <= ]
)
)