(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]
SZ[19]RU[Japanese]KM[5.50]TM[1800]
GN[White (W) vs. Black (B)]PB[Black]PW[White]DT[1999-07-28]SY[Cgoban 1.9.2]
AW[mb][ob][kc][mc][qc][kd][qd][ke][pe][kf][of][pf][kg][lg][mh][nh][oh][ph]AB[qb][rb][pc][md][nd][pd][le][oe][lf][nf][mg]LB[ob:A]C[white just played A. black's best move?
]
(;B[pb]
;W[rc]C[black still needs one more move: not optimal
])
(;B[nb]
;W[pb]
(;B[nc]
;W[na])
(;B[oc]
;W[nc]))
(;B[qe]
;W[re]
;B[rd]
;W[qf]
;B[rc]C[RIGHT
black gets a few in the corner and reduces white
])
(;B[rd]
;W[qe]
;B[pb]C[RIGHT
can be best choice depending on rest of board])
(;B[oc]
;W[pb]
(;B[nb]
;W[nc])
(;B[nc]
;W[nb]))
(;B[rc]CR[rc]
;W[rd]CR[rd]
;B[pb]CR[pb]C[RIGHT
this can be correct depending upon rest of board, yose situation]))