(;
GM[1]
SZ[19]
AW[cd][ed][hc][ch][qc][oc][qf][pf][qi]
AB[jc][cj][od][nd][pd][qe][re]
LB[od:1]
TR[oc]
C[Problem 128. White to play.  

Connecting with Black 1 is an obvious move. In response, White has two possibilities. Where are they ? ]
(;W[nc]
LB[nb:A]

TE[2]
C[Correct Answer.  

White can play either 1 or A. Both of these moves are joseki. <= ]
)
(;W[pc]
C[Failure.  

Connecting at 1 is heavy. ]
;B[nc]
C[Black plays 2 and, ... ]
(;W[nb];B[mb];W[oa]
LB[nb:3]
C[... after 3 and 5, ... ]
;B[pb];W[qb];B[sb]
LB[pb:6]
C[... kills White with 6 and 8. <= ]
)
(;W[nb]
TE[2]
C[Correct Answer.  

Also correct. <= ]
)
(;W[rb]
C[White 3 here is better, she just manages to live. <= ]
))
)