(;AW[pq]AW[rq]AW[sq]AW[nr]AW[or]AW[qr]AW[sr]AW[qs]AW[ss]AB[ro]AB[so]AB[np]AB[op]AB[pp]AB[qp]AB[rp]AB[mq]AB[qq]AB[mr]AB[ms]C[black to kill]SZ[19]GM[1]FF[3]RU[Japanese]HA[0]KM[5.5]PW[White]PB[Black]GN[White (W) vs. Black (B)]DT[1999-07-28]SY[Cgoban 1.9.2]TM[30:00(5x1:00)]
(;B[pr]
(;W[ps]
(;B[ns];W[oq]
(;B[os]C[RIGHT])
(;B[nq];W[os]))
(;B[oq];W[ns]C[only ko])
(;B[os];W[ns];B[oq];W[pr]))
(;W[oq];B[os]
(;W[ps];B[ns]C[RIGHT])
(;W[ns];B[nq]C[RIGHT])))
(;B[oq];W[pr]
(;B[ns];W[os])
(;B[os];W[ns]))
(;B[ns];W[os]
(;B[oq];W[pr])
(;B[pr];W[oq])
(;B[nq];W[pr]))
(;B[os];W[ns]
(;B[pr];W[ps];B[oq];W[pr])
(;B[oq];W[pr])
(;B[ps];W[pr]))
(;B[ps];W[pr]
(;B[ns];W[os])
(;B[os];W[ns])))