(;SZ[19]AW[pb]AW[kc]AW[lc]AW[mc]AW[pc]AW[qc]AW[nd]AW[od]AW[ne]AW[pe]AW[nf]AW[pf]AW[rf]AW[pg]AW[qg]AW[qh]AW[rh]AB[oa]AB[hb]AB[jb]AB[lb]AB[mb]AB[qb]AB[ic]AB[nc]AB[oc]AB[md]AB[pd]AB[qd]AB[me]AB[oe]AB[qe]AB[re]AB[qf]LB[qc:1]C[white has played 1. what should black do in response? can he save all his stones?]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[0.00]PW[White]PB[Black]
(;B[rc];W[rb]
(;B[pa];W[qa]
(;B[ob];W[qb]
(;B[sb]C[
yes, he canRIGHT])
(;B[sc];W[se];B[rd];W[sb])
(;B[sd];W[sf];B[sb]C[RIGHT])
(;B[se];W[sc]
(;B[rd];W[sf])
(;B[sf];W[rd];B[rg];W[sd]))
(;B[rd];W[sc])
(;B[sf];W[sc];B[rd];W[rg]))
(;B[sd];W[ob]
(;B[nb];W[na])
(;B[na];W[nb]))
(;B[se];W[sc];B[rd];W[sf])
(;B[sb];W[se];B[rd];W[sc])
(;B[na];W[sc]))
(;B[qa];W[se]
(;B[rd];W[sc])
(;B[sd];W[rd])
(;B[sc];W[rd])
(;B[pa];W[rd])
(;B[ob];W[rd]))
(;B[ra];W[qa]
(;B[pa];W[ob];B[nb];W[na])
(;B[ob];W[se]))
(;B[sc];W[se];B[rd];W[sb])
(;B[sd];W[qa]
(;B[pa];W[ob]
(;B[nb];W[na])
(;B[na];W[nb]))
(;B[ob];W[pa];B[sb];W[sf]))
(;B[se];W[sc])
(;B[ob];W[qa]
(;B[pa];W[qb];B[sb]C[RIGHT])
(;B[sb];W[se]))
(;B[sb];W[se];B[rd];W[qa]))
(;B[rd];W[rc])
(;B[rb];W[rd])
(;B[ob];W[rd])
(;B[qa];W[rd])
(;B[se];W[rc])
(;B[sf];W[rc]
(;B[pa];W[rg])
(;B[rg];W[rb]))
(;B[pa];W[rd]))