(;AB[rb]AB[rc]AB[qd]AB[pc]AB[pe]AB[pf]AB[pg]AB[ph]AB[pi]AB[pj]AB[qj]AB[rj]AB[sj]AW[ri]AW[qi]AW[qh]AW[qg]AW[qf]AW[qe]AW[rf]AW[rd]AW[sc]C[black to kill]AB[rg]AP[goproblems]
(;B[se]
(;W[sg]C[CHOICE]
(;B[sd];W[rh];B[si]C[RIGHT])
(;B[sb]C[RIGHT])
(;B[re];W[sf]))
(;W[sd]C[CHOICE]
(;B[sb];W[re];B[sh]C[RIGHT])
(;B[sf]
(;W[sh]
(;B[sb];W[re];B[si];W[sg])
(;B[si];W[re];B[sb];W[sg])))
(;B[sh];W[rh]
(;B[sf];W[re])
(;B[sg];W[si])
(;B[si];W[sg]))))
(;B[sd];W[se]
(;B[sb];W[sd]C[='(];B[sh];W[si];B[sf]C[ko])
(;B[sg];W[sf])
(;B[sh];W[si];B[sb];W[sf];B[sd];W[sg]))
(;B[si];W[sg]
(;B[se];W[sd])
(;B[sh];W[rh];B[se];W[sd]))
(;B[sf];W[se]C[='(];B[sh];W[rh])
(;B[sg];W[sf])
(;B[sh];W[si]
(;B[se];W[sf];B[sd];W[sg])
(;B[sf];W[se];B[sb];W[sg])))