(;SZ[9]AB[dh]AB[di]AW[eg]AW[eh]AW[ei]AB[dg]AW[bg]AW[df]AW[ef]AB[cf]AB[bf]AB[ag]AB[af]AW[cg]MA[cg]AB[be]AW[fh]C[White has just played at the marked stone, but has made a reading error; punish white!CHOICE]AP[goproblems]
(;B[ch];W[bh]
(;B[bi];W[ci])
(;B[ci];W[bi])
(;B[ai];W[ci])
(;B[ah];W[ci]))
(;B[ci];W[bi]
(;B[bh];W[ch])
(;B[ch];W[bh])
(;B[ah];W[ch])
(;B[ai];W[ch]))
(;B[bi];W[bh]
(;B[ci];W[ah]C[Seki, but this is not the best outcome.]TR[ch]TR[ai])
(;B[ai];W[ci]
(;B[ah];W[ch])
(;B[ch];W[ci]))
(;B[ch];W[ci])
(;B[ah];W[ch];B[ci]C[Good!RIGHT]))
(;B[ai];W[ch]
(;B[ci];W[bi])
(;B[bi];W[ci])
(;B[bh];W[ci])
(;B[ah];W[ci]))
(;B[ah];W[ch]
(;B[bh];W[ci])
(;B[ci];W[bi])
(;B[bi];W[ci])
(;B[ai];W[ci]))
(;B[bh];W[ch];B[ci]C[Good!RIGHT]))