(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00] PW[White]PB[Black]AW[pc][qd][qe][ho][dq]AB[pd][dp]LB[nc:B][od:A]C[Does the ladder work for white? If yes, play it (at A), else play B.]PL[W] (;W[od]CR[od] ;B[pe]CR[pe] ;W[pf]CR[pf] ;B[oe]CR[oe] ;W[ne]CR[ne] ;B[of]CR[of] ;W[og]CR[og] ;B[nf]CR[nf] ;W[mf]CR[mf] ;B[ng]CR[ng] ;W[nh]CR[nh] ;B[mg]CR[mg] ;W[lg]CR[lg] ;B[mh]CR[mh] ;W[mi]CR[mi] ;B[lh]CR[lh] ;W[kh]CR[kh] ;B[li]CR[li] ;W[lj]CR[lj] ;B[ki]CR[ki] ;W[ji]CR[ji] ;B[kj]CR[kj] ;W[kk]CR[kk] ;B[jj]CR[jj] ;W[ij]CR[ij] ;B[jk]CR[jk] ;W[jl]CR[jl] ;B[ik]CR[ik] ;W[hk]CR[hk] ;B[il]CR[il] ;W[im]CR[im] ;B[hl]CR[hl] ;W[gl]CR[gl] ;B[hm]CR[hm] (;W[hn]CR[hn] ;B[gm]CR[gm] ;W[fm]CR[fm] ;B[gn]CR[gn] (;W[go]CR[go] ;B[fn]CR[fn] ;W[en]CR[en] ;B[fo]CR[fo] ;W[fp]CR[fp] ;B[eo]CR[eo] ;W[do]CR[do] ;B[ep]CR[ep] (;W[cp]CR[cp] ;B[eq]CR[eq] (;W[er]CR[er] ;B[fq]CR[fq] (;W[gq]CR[gq] ;B[fr]CR[fr] (;W[gr]CR[gr] ;B[gp]CR[gp] ;W[fs]CR[fs]C[RIGHT Oiotoshi]) (;W[fs]CR[fs] ;B[gr]CR[gr] ;W[hr]CR[hr] ;B[gp]CR[gp] (;W[gs]CR[gs] ;B[hq]CR[hq]) (;W[hp]CR[hp] ;B[hq]CR[hq]))) (;W[fr]CR[fr] ;B[gq]CR[gq]C[3 liberties = failure])) (;W[fq]CR[fq] ;B[er]CR[er]C[3 liberties = failure])) (;W[eq]CR[eq] ;B[cp]CR[cp]C[3 liberties = failure])) (;W[fn]CR[fn] ;B[go]CR[go] ;W[gp]CR[gp] ;B[fo]CR[fo] ;W[eo]CR[eo] ;B[fp]CR[fp] (;W[fq]CR[fq] ;B[ep]CR[ep]C[3 liberties = failure]) (;W[ep]CR[ep] ;B[fq]CR[fq]C[3 liberties = failure]))) (;W[gm]CR[gm] ;B[hn]CR[hn] (;W[gn]CR[gn] ;B[in]CR[in] ;W[jn]CR[jn] ;B[jm]CR[jm] ;W[io]CR[io] ;B[kl]CR[kl]) (;W[in]CR[in] ;B[gn]CR[gn] ;W[fn]CR[fn] ;B[go]CR[go] ;W[gp]CR[gp] ;B[fo]CR[fo] ;W[eo]CR[eo] ;B[fp]CR[fp] (;W[fq]CR[fq] ;B[ep]CR[ep]C[3 liberties = failure]) (;W[ep]CR[ep] ;B[fq]CR[fq]C[3 liberties = failure])))) (;W[nc]CR[nc]C[The ladder actually works...]))