(;
GM[1]
SZ[19]
AW[hc][ic][jd][kd][ld][qd][pf][qj]
AB[dc][ce][jc][kc][lc][nd][oc][qb]
LB[md:A]
C[Problem 49. White to play.  

Black has neglected to play at A. What should White do ? ]
;W[mc]
LB[md:A]

TE[2]
C[Correct Answer.  

Neglecting to play at A is a mistake, since White will hane with 1. ]
;B[mb]
C[Black has no choice but to submissively link up with 2 ... ]
;W[md];B[nb]
C[... and 4, ... ]
;W[ne]
C[... after which White becomes thick in the center when she plays 5. <= ]
)
)