(;GM[1]FF[3]
RU[Japanese]SZ[19]HA[0]KM[0.5]
PW[]
PB[]
GN[ (W) vs. (B)]
DT[2002-04-20]
SY[Cgoban 1.9.5]TM[-];
C[Black played at A and White played B. He didn´t like R17 which leads to a ko (I hope this is correct). But was his defense at B a good choice? If you can kill, do so. If not play at C.
]
LB[rc:A][rb:B]AW[pb][qb][rb][pc][qd][qe][re]
AB[ob][oc][rc][pd][pe][pf][qf][rf][rh]LB[ph:C]
(;B[ph]C[well, black could kill. sorry ...
])
(;B[sd];W[se];B[qc]
C[RIGHT
This sequence forced my 2dan opponent to resign, hardly 30 moves beeing played.
Well it was a leisurely handicap game late in the evening, but it still felt great :-) .
])
(;B[sb];W[sd]
(;B[sc];W[qc];B[pa];W[qa]C[
]
(;B[oa];W[rd]C[white alive
])
(;B[sa];W[oa]C[white alive
])
)
(;B[pa]
(;W[sc];B[ra];W[sa]C[ko, black can do better.
])
(;W[qc];B[sc];W[qa]C[
]
(;B[sa];W[oa]C[W alive
])
(;B[oa];W[rd]C[W alive
])
)
)
)
(;B[sc];W[sb];B[se];W[sd];B[rd];W[qc]C[W alive
])
(;B[rd];W[sd];B[sc];W[sb];B[se];W[qc]C[W alive
])
(;B[se];W[sd];B[sc];W[sb];B[rd];W[qc]C[W alive
])
)