(;AP[goproblems]AB[mb]AB[mc]AB[md]AB[lc]AB[kc]AB[jd]AB[ke]AB[id]AB[ie]AB[jf]AB[jg]AW[he]AW[hd]AW[hc]AW[ic]AW[jc]AW[kb]AW[lb]AW[ma]AW[if]AW[ig]AW[hg]AW[jh]AW[ii]AW[hi]AW[kg]AW[lg]AW[mg]AW[ng]AW[lh]AW[ne]AW[nd]AW[nc]AW[nb]AW[ob]AW[pb]AW[pc]AW[od]AB[kh]AB[ki]AB[li]AB[lj]AB[lk]AB[mk]AW[mi]AW[mj]AW[nj]AB[mh]AB[nh]AB[ni]AB[oi]AW[oh]AB[og]AB[pg]AB[qh]AB[pj]AB[oe]AB[pe]AB[pd]AB[qe]AB[re]AW[qf]AW[qd]AW[rd]AB[qc]AB[qb]TR[md]TR[mc]TR[mb]TR[lc]TR[kc]TR[jd]TR[id]TR[ie]TR[jf]TR[jg]TR[ke]C[black to save his marked stones](;B[me];W[kf](;B[nf];W[je];B[mf];W[kd])(;B[je];W[mf]))(;B[kf](;W[le](;B[me];W[lf](;B[nf]C[RIGHT])(;B[mf];W[nf])(;B[of];W[nf])(;B[ld];W[nf]))(;B[lf];W[me])(;B[mf];W[me](;B[nf];W[lf])(;B[lf];W[nf])))(;W[kd](;B[ld];W[le](;B[me];W[lf];B[nf]C[RIGHT])(;B[lf];W[me])(;B[mf];W[me](;B[nf];W[lf])(;B[lf];W[nf])))(;B[me];W[je])(;B[le];W[je])))(;B[le];W[kf];B[je])(;B[nf];W[mf](;B[me];W[of](;B[pf];W[le](;B[nf];W[kd])(;B[kd];W[nf]))(;B[kf];W[pf]C[b has lost many points in the right]))(;B[le];W[of](;B[kf];W[pf]C[b has lost many points in the right])(;B[pf];W[kf]))))