(;AB[as]AB[br]AB[aq]AB[bp]AB[co]AB[bn]AB[do]AB[eo]AB[fo]AB[fp]AB[gn]AB[gq]AB[gr]AB[ho]AB[hp]AB[ip]AB[iq]AB[ir]AW[cs]AW[cr]AW[cq]AW[bq]AW[dp]AW[eq]AW[fr]AW[gs]AW[hs]AW[hr]AW[hq]AW[dr]AB[es]AW[fs]AB[kr]AB[is]C[Black can't kill White but has the best result. FORCE]AP[goproblems]
(;B[ao];W[bs])
(;B[bo];W[bs])
(;B[ap]
(;W[bs];B[ar];W[fq];B[gp]C[])
(;W[fq];B[gp];W[bs];B[ar]C[]))
(;B[ar]
(;W[bs]
(;B[ao];W[ap])
(;B[bo];W[ap])
(;B[ap];W[fq];B[gp]C[]))
(;W[fq]
(;B[go];W[gp])
(;B[gp];W[bs];B[ap]C[])))
(;B[er];W[fq])
(;B[fq];W[er]
(;B[ao];W[bs])
(;B[bo];W[bs])
(;B[ap];W[bs];B[ar]C[RIGHT])
(;B[ar];W[bs]
(;B[ao];W[ap])
(;B[bo];W[ap])
(;B[ap]C[RIGHT]))
(;B[bs])))