(;AB[ff]AB[fg]AB[gh]AB[gi]AB[fi]AW[fh]AW[eg]AW[ef]AW[ei]AW[ej]AW[ek]AW[dh]AW[di]AW[dg]AB[fj]AB[hi]AB[hj]AB[gk]AW[fk]AW[gl]AW[hl]AW[fl]AW[hk]AB[ij]AB[jj]AB[ik]AB[il]AB[jk]AW[im]AW[jl]AW[kk]AW[kj]AW[ki]AW[ji]AW[ii]AW[kl]AW[hm]AB[jm]AB[km]AB[lm]AB[ll]AB[lk]AB[lj]AW[li]AB[mi]AB[mh]AB[lh]AW[jh]AW[jg]AB[ih]AW[hh]AW[hg]AW[hf]AW[if]AW[gf]AW[fe]AW[fd]AB[ge]AB[he]AB[ie]AB[jf]AB[je]AB[kg]AB[kf]AB[kh]LB[fh:1]LB[kh:2]C[white played 1 and black responded at 2. white has NO ko threats. how to continue?]AP[goproblems] (;W[ig];B[eh] (;W[gj]C[double-ko: white wins this fight unconditionallyRIGHT]) (;W[fh]C[NOTTHIS]) (;W[gg];B[ih])) (;W[gg];B[ig]C[wrong choice. white could have won here.]) (;W[gj];B[ig]C[bad]) (;W[eh];B[ig]))