(;AB[br]AB[bq]AB[cp]AB[dp]AB[ep]AB[fp]AB[gp]AB[hp]AB[hq]AB[hr]AW[cr]AW[cs]AW[cq]AW[eq]AW[dq]AW[fq]AW[gq]AW[gr]AW[gs]AB[bp]C[Black can't kill White but has the best result.FORCE]AP[goproblems]
(;B[bs]C[FORCE];W[hs])
(;B[hs]C[FORCE];W[bs]C[FORCE]
(;B[aq]C[FORCE];W[as]C[FORCE];B[ar])
(;B[ar]C[FORCE];W[as]C[RIGHT])
(;B[as]C[FORCE];W[ar]C[FORCE];B[aq]C[FORCE];W[as]))
(;B[is]C[FORCE]
(;W[bs]C[FORCE];B[ar]C[FORCE];W[hs])
(;W[hs]C[FORCE]
(;B[iq]C[FORCE];W[bs]C[FORCE];B[ar])
(;B[ir]C[FORCE];W[bs]C[FORCE];B[ar])
(;B[jr]C[FORCE];W[bs]C[FORCE];B[ar])
(;B[js]C[FORCE];W[bs]C[FORCE];B[ar]))))