(;AB[cr]AB[cq]AB[cp]AB[do]AB[ep]AB[fp]AB[ho]AB[ip]AB[jq]AB[jr]AB[js]AB[is]AW[hs]AW[ir]AW[hq]AW[gq]AW[dq]AW[eq]AW[dr]C[White to play and get a ko]AP[goproblems]
(;W[fr];B[es];W[ds];B[hr];W[gr];B[iq];W[fs]C[RIGHT];B[hr]C[RIGHT])
(;W[fq];B[iq];W[hr];B[ds];W[es];B[fr])
(;W[ds];B[fr];W[fq];B[gr];W[hr];B[fs]))