(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00]TM[] PW[White]PB[Black]AW[fd][kd][ld][md][je][ne][oe][gf][jf][nf][hg][ig][og][hh]AB[jc][kc][mc][nc][pc][id][nd][le][me][hf][if][kf][gg][jg][jh][kj]TR[kd][ld][md][je][jf]C[how to save the marked stones? ladders work for either side.]PL[W] (;W[lf]CR[lf] ;B[mf]CR[mf] (;W[mg]CR[mg] ;B[lg]CR[lg] (;W[ke]CR[ke] ;B[lf]CR[lf] (;W[lh]CR[lh] ;B[kg]CR[kg] (;W[ji]CR[ji] ;B[mh]CR[mh] (;W[kh]CR[kh] ;B[ng]CR[ng] ;W[ih]CR[ih] ;B[mg]CR[mg] ;W[mi]CR[mi]C[RIGHT ladder]) (;W[ih]CR[ih] ;B[ng]CR[ng] ;W[kh]CR[kh] ;B[mg]CR[mg] ;W[mi]CR[mi]C[RIGHT ladder]) (;W[ng]CR[ng] ;B[kh]CR[kh]) (;W[nh]CR[nh] ;B[mi]CR[mi] ;W[ng]CR[ng] ;B[kh]CR[kh])) (;W[ii]CR[ii] ;B[ji]CR[ji]) (;W[kh]CR[kh] ;B[ji]CR[ji])) (;W[kg]CR[kg] ;B[kh]CR[kh] ;W[lh]CR[lh] ;B[kg]CR[kg])) (;W[lh]CR[lh] ;B[mh]CR[mh] ;W[ng]CR[ng] ;B[kg]CR[kg] ;W[ke]CR[ke] ;B[lf]CR[lf] ;W[ji]CR[ji] ;B[ki]CR[ki]) (;W[kg]CR[kg] ;B[kh]CR[kh] ;W[ke]CR[ke] ;B[lf]CR[lf] ;W[lh]CR[lh] ;B[kg]CR[kg])) (;W[lg]CR[lg] ;B[mg]CR[mg] (;W[kg]CR[kg] ;B[lh]CR[lh] ;W[ke]CR[ke] ;B[kh]CR[kh]) (;W[lh]CR[lh] ;B[mh]CR[mh]) (;W[mh]CR[mh] ;B[lh]CR[lh]))) (;W[mf]CR[mf] (;B[lf]CR[lf]) (;B[kg]CR[kg])) (;W[kg]CR[kg] ;B[lg]CR[lg] ;W[kh]CR[kh] ;B[lh]CR[lh] ;W[ki]CR[ki] ;B[ji]CR[ji] ;W[li]CR[li] ;B[mi]CR[mi] ;W[lj]CR[lj] ;B[lk]CR[lk]) (;W[ke]CR[ke] ;B[lf]CR[lf]) (;W[ie]CR[ie] ;B[he]CR[he] ;W[hd]CR[hd] ;B[ge]CR[ge] ;W[fe]CR[fe] ;B[ff]CR[ff] ;W[gd]CR[gd] ;B[gf]CR[gf]) (;W[jd]CR[jd] ;B[ie]CR[ie]) (;W[he]CR[he] ;B[ie]CR[ie]) (;W[lg]CR[lg] ;B[kg]CR[kg]) (;W[lh]CR[lh] ;B[kg]CR[kg]) (;W[lc]CR[lc] ;B[lb]CR[lb]C[loses a liberty]))