(;AB[jb]AB[kc]AB[kd]AB[ic]AB[id]AB[hb]AB[gb]AB[fb]AB[fa]AB[lb]AB[mb]AB[nb]AB[na]AW[ea]AW[eb]AW[ec]AW[oa]AW[ob]AW[oc]AW[nc]AW[mc]AW[lc]AW[ld]AW[ke]AW[je]AW[ie]AW[hd]AW[hc]AW[jd]AW[jc]AW[gc]AW[fc]AW[he]AW[le]AB[qb]AB[pd]AB[ne]AW[kf]AW[jg]AW[if]AB[mf]AB[lg]AB[kh]AB[ih]AB[hg]AB[gf]AB[fe]AB[dd]AB[cb]AB[jh]AB[od]AB[ed]C[Black to kill]AP[goproblems] (;B[ja] (;W[ib] (;B[ic] (;W[id] (;B[ha];W[kb] (;B[kc];W[kd] (;B[la]C[CHOICERIGHT]) (;B[ka];W[la]C[ko.])) (;B[ka];W[kc]) (;B[la];W[kc])) (;B[ia];W[ha]C[ko.]) (;B[kb];W[ia])) (;W[kb] (;B[kc] (;W[id] (;B[ha];W[kd] (;B[la]C[CHOICERIGHT]) (;B[ka];W[la]C[ko.])) (;B[ia];W[ha]C[ko.]) (;B[ka];W[ia])) (;W[kd] (;B[la];W[id] (;B[ha]C[CHOICERIGHT]) (;B[ia];W[ha]C[ko.])) (;B[ia];W[ka]) (;B[ka];W[la]C[ko.]))) (;B[ia];W[ka]) (;B[ka];W[kc]) (;B[la];W[kc]))) (;B[ha];W[ic]) (;B[ia];W[ic]) (;B[kb];W[ia])) (;W[kb] (;B[kc] (;W[ib] (;B[ic] (;W[id] (;B[ha];W[kd] (;B[la]C[CHOICERIGHT]) (;B[ka];W[la]C[ko.])) (;B[ka];W[ia]) (;B[ia];W[ha]C[ko.])) (;W[kd] (;B[la];W[id] (;B[ha]C[CHOICERIGHT]) (;B[ia];W[ha]C[ko.])) (;B[ka];W[la]C[ko.]) (;B[ia];W[ka]C[ko.]))) (;B[ka];W[ia]) (;B[ia];W[ic]) (;B[ha];W[ic])) (;W[kd] (;B[la];W[ib] (;B[ic];W[id] (;B[ha]C[CHOICERIGHT]) (;B[ia];W[ha]C[ko.])) (;B[ia];W[ic]) (;B[ha];W[ic])) (;B[ka];W[la]C[ko.]) (;B[ib];W[ka]C[ko.]))) (;B[la];W[kc]) (;B[ka];W[kc]) (;B[ib];W[ka]))) (;B[ia];W[kb] (;B[ka];W[kc]) (;B[kc];W[ka])) (;B[ka];W[ib] (;B[ia];W[ic]) (;B[ic];W[ia])) (;B[ib];W[kb] (;B[ka];W[kc]) (;B[kc];W[ka])) (;B[kb];W[ib] (;B[ia];W[ic]) (;B[ic];W[ia])))