(;SZ[19]AW[mo]AW[no]AW[oo]AW[po]AW[mp]AW[pp]AW[qp]AW[mq]AW[rq]AW[mr]AW[or]AW[rr]AW[ms]AW[rs]AB[qm]AB[qo]AB[ro]AB[np]AB[op]AB[rp]AB[nq]AB[pq]AB[qq]AB[nr]AB[qr]AB[ns]AB[qs]LB[or:1]C[how to respond to white's move at 1?]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[0.00]PW[White]PB[Black]
(;B[os];W[pr]
(;B[sq];W[oq]
(;B[ps];W[or]
(;B[sr];W[oq]
(;B[ss]C[RIGHT])
(;B[pr];W[or];B[ss]C[RIGHT]))
(;B[ss];W[oq]
(;B[sr]C[RIGHT])
(;B[pr];W[or];B[sr]C[RIGHT])))
(;B[sr];W[ps])
(;B[ss];W[ps]))
(;B[sr];W[oq]
(;B[ps];W[or]
(;B[sq];W[oq]
(;B[pr];W[or];B[ss]C[RIGHT])
(;B[ss]C[RIGHT]))
(;B[ss];W[sq]
(;B[sp];W[oq]
(;B[pr];W[or])
(;B[sr];W[pr])
(;B[ss];W[pr]))
(;B[sr];W[oq];B[pr];W[oq])
(;B[ss];W[oq];B[pr];W[oq])))
(;B[sq];W[ps])
(;B[ss];W[ps]))
(;B[ss];W[oq]
(;B[ps];W[or]
(;B[sr];W[sq]
(;B[sp];W[oq]
(;B[pr];W[or])
(;B[sr];W[pr])
(;B[ss];W[pr]))
(;B[sr];W[oq];B[pr];W[oq])
(;B[ss];W[oq];B[pr];W[oq]))
(;B[sq];W[oq]
(;B[sr]C[RIGHT])
(;B[pr];W[or]
(;B[sr]C[RIGHT])
(;B[oq];W[or]))))
(;B[sq];W[ps])
(;B[sr];W[ps]))
(;B[oq];W[ps])
(;B[ps];W[oq]))
(;B[oq]
(;W[ps]
(;B[sq];W[pr]
(;B[os];W[pr]
(;B[sr];W[ps]
(;B[or];W[pr]
(;B[ss]C[RIGHT])
(;B[ps];W[pr]))
(;B[ss]C[RIGHT]))
(;B[ps];W[or])
(;B[ss];W[sr];B[ss]C[RIGHT])
(;B[or];W[ps]))
(;B[sr];W[os])
(;B[ss];W[os]))
(;B[sr];W[pr];B[os];W[pr]
(;B[sq];W[ps]
(;B[ss]C[RIGHT])
(;B[or];W[pr]
(;B[ps];W[pr])
(;B[ss]C[RIGHT])))
(;B[ss];W[sq]
(;B[ps];W[or])
(;B[or];W[ps])
(;B[sp];W[ps];B[or];W[pr];B[ps];W[pr]))
(;B[sp];W[ps]))
(;B[ss];W[sr]
(;B[sp];W[pr]
(;B[os];W[pr];B[sq]C[RIGHT])
(;B[sq];W[os]))
(;B[sq];W[sp];B[so];W[pr];B[os];W[pr];B[sq]C[only ko]))
(;B[pr];W[os])
(;B[os];W[pr]))
(;W[pr]
(;B[ps];W[os])
(;B[sq];W[ps];B[os];W[pr];B[sr];W[ps]
(;B[or];W[pr]
(;B[ss]C[RIGHT])
(;B[ps];W[pr]))
(;B[ss]C[RIGHT]))))
(;B[pr];W[os];B[oq];W[ps])
(;B[ps];W[oq];B[os];W[pr])
(;B[sq];W[oq]
(;B[os];W[ps])
(;B[sr];W[ps];B[ss]C[Black does not get as much as he could.])
(;B[ss];W[ps];B[sr]C[Black does not get as much as he could.]))
(;B[sr];W[oq]
(;B[os];W[ps])
(;B[sq];W[os])
(;B[ss];W[os]))
(;B[ss];W[oq]
(;B[os];W[ps])
(;B[sq];W[os])
(;B[sr];W[os])))
adum