(;AB[ag]AB[af]AB[bf]AB[be]AB[ce]AB[df]AB[de]AB[ee]AW[ah]AW[bg]AW[cg]AW[cf]AW[dg]AW[ef]AW[fe]AW[ge]AB[fd]AW[hf]AW[hg]AW[el]AW[gk]AW[hi]AW[hh]AW[gj]AW[fl]AB[en]AB[fm]AB[gm]AB[ji]AB[jh]AB[hk]AB[hj]AB[ii]AW[ih]AB[jg]AB[if]AB[ie]AB[gd]AW[em]AB[he]AB[ig]AB[hl]AW[gl]AW[gf]AW[fh]C[What can black do here?]AW[aj]AW[bj]AB[ak]AB[bk]AW[ck]AW[dk]AB[cl]AB[dl]AB[bm]AB[dn]AB[dm]AB[hm]AW[di]AW[ej]AW[cj]AP[goproblems]
(;B[bh]
(;W[ai];B[eg];W[ff]
(;B[dh];W[ch];B[ci]C[RIGHT])
(;B[eh];W[dh])
(;B[ch];W[dh]))
(;W[ch];B[ai];W[bi];B[ah]C[RIGHT]))
(;B[eg]
(;W[ff];B[bh];W[ai]
(;B[dh];W[ch];B[ci]C[RIGHT])
(;B[ch];W[dh])
(;B[eh];W[dh]))
(;W[eh];B[ff];W[fg];B[ef]C[RIGHT])
(;W[fg];B[ff]C[koRIGHT]))
(;B[ai];W[bi])
(;B[ff];W[fg])
(;B[ch];W[bh]
(;B[eg];W[ff])
(;B[ff];W[fg]))
(;B[dh];W[eh]
(;B[eg];W[fg])
(;B[ff];W[fg])
(;B[bh];W[ai]
(;B[ch];W[eg])
(;B[eg];W[fg];B[ch];W[eg]))))