(;
GM[1]
SZ[19]
AW[dd][pk][nk][ni][nm][iq][kq][lq][mq][pq][oq]
AB[cp][pd][pg][pi][qo][op][no][lp][kp][jp][lm][lk]
LB[qm:B][cj:A][eq:C]
C[Problem 127. White to play.  

A sharp exchange took place on the lower right. It is White's move. Should she leave the right side as it is and play at A or C, or does she need to play a move at B ? ]
(;W[qm]
TE[2]
C[Correct Answer.  

Before anything else, White must secure her position on the lower right by playing on the urgent move of 1. ]
;B[cf];W[fc];B[gd];W[gc];B[id];W[hd];B[he];W[hc];B[ie];W[qc];B[qd];W[cj]
C[The sequence to 13 is one possible continuation. <= ]
)
(;W[cj]
C[Failure.  

If White plays on the left side with 1 or approaches the stone in the lower left, ... ]
;B[qm]
C[... Black will play 2, robbing White's stones of their base. These stones will now come under a severe attack. <= ]
)
(;W[eq]
C[Failure.  

Also wrong. ]
;B[qm]
C[Black attacks with 2. <= ]
)
)