(;AW[ec]AW[dc]AW[fd]AW[gd]AB[ed]AB[fe]AB[gf]AB[de]AB[df]AB[cf]AW[ce]AW[cd]AB[if]AB[je]AB[jd]AB[ke]AB[kf]AB[ic]AB[jb]AB[hb]AW[jc]AW[kc]AW[kb]AW[lc]AW[kd]AW[le]AW[me]AW[mf]AW[mg]AW[nf]AW[gh]AW[ih]AW[jg]AW[jf]C[After the marked stone black should play ......]AW[he]AB[ie]AW[hf]AB[hd]AW[hg]AB[gc]AW[fb]TR[fb]AB[ch]AP[goproblems]
(;B[gb];W[ja]
(;B[ib];W[fc])
(;B[fc];W[ge]
(;B[ib];W[eb])
(;B[eb];W[db];B[fa];W[ha];B[ib]C[RIGHT]))
(;B[ia];W[ib];B[fc];W[ge]C[];B[jb]C[Ko fight.]))
(;B[fc];W[ge];B[gb];W[ja]
(;B[ib];W[eb])
(;B[eb];W[db];B[fa];W[ha];B[ib]C[RIGHT])
(;B[ia];W[ib];B[eb];W[ha];B[db];W[cb];B[fa];W[da]))
(;B[ia];W[gb]))