(;
GM[1]
SZ[19]
AW[fq][md][nc][oc][re][rf][qf][pg][rc][jc][lp]
AB[dp][pd][pp][dd][cj][dn][pn][qj][pc][rd][qe][pf][nd][ne]
LB[rc:1]
TR[jc]
C[Problem 117. Black to play.  

White has played the marked stone, so the position at the top is different from Problem 116. How should Black answer White 1 here ? ]
(;B[mc]
TE[2]
C[Correct Answer.  

Cutting at 1 creates defects in White's position. ]
;W[mb]
C[In order to save her two stones at the top, White plays 2 ... ]
;B[lc];W[lb]
C[... and 4. ]
;B[se]
C[Black then switches back to the corner with 5. ]
;W[qc];B[qd];W[pb]
C[If White now tries to link up with the sequence to 8 - as in the game in Problem 116 - ... ]
;B[ob]
LB[nb:B][qb:A]
C[... Black cuts at 9. Whether White plays A or B, the two white stones in the corner will die. <= ]
)
(;B[pb]
C[How the game continued.  

Black descended with 1 as in the Correct Answer in Problem 116, but ... ]
;W[sd]
C[... White could still link up with 2. ]
;B[mc]
C[When Black cut with 3, ... ]
;W[mb];B[lc];W[lb];B[kc];W[kb]
TR[jc]
C[... White drove the cutting Black stone towards her marked stone, so White was able to live at the top ... ]
;B[le]
C[... in sente as well as wiping out Black's territory in the corner. <= ]
)
)