(;AB[ab]AB[ba]AB[cb]AB[bc]AB[dc]AB[dd]AB[dg]AB[cg]AB[eg]AB[gf]AB[hg]AB[fd]AB[hd]AW[db]AW[cc]AW[ce]AW[cd]AW[cf]AW[eb]AW[ec]AW[fc]AW[gc]AW[ic]AW[jc]AP[goproblems]
(;W[fe]
(;B[ee]
(;W[ef]
(;B[df]C[CHOICE]
(;W[de]C[RIGHT])
(;W[ed];B[de])
(;W[gd];B[de]))
(;B[de]C[CHOICE];W[df]C[RIGHT])
(;B[ff]C[CHOICE]
(;W[ed]C[RIGHT])
(;W[de]C[RIGHT])))
(;W[de];B[ed]
(;W[gd];B[ef])
(;W[ef];B[gd]))
(;W[ed];B[de])
(;W[df];B[ed];W[gd];B[ef]))
(;B[ed];W[gd]C[RIGHT]))
(;W[de];B[ed]
(;W[gd];B[fe])
(;W[ee];B[fe])
(;W[fe];B[gd]))
(;W[ed];B[de]
(;W[df];B[ee]
(;W[ef];B[fe]
(;W[ff];B[fg]
(;W[ge];B[gd];W[he];B[ie])
(;W[gd];B[ge])
(;W[he];B[ge]))
(;W[ge];B[ff])
(;W[gd];B[ff]))
(;W[fe];B[ef]))
(;W[ee];B[df]))
(;W[ee];B[ed]
(;W[gd];B[fe]
(;W[ef];B[ff])
(;W[ff];B[ge])
(;W[ge];B[ff]))
(;W[fe];B[gd];W[ge];B[he];W[ff];B[fg])
(;W[ge];B[gd]
(;W[he];B[fe]
(;W[ef];B[ff])
(;W[ff];B[ef]))
(;W[fe];B[he];W[ff];B[fg])))
(;W[ca];B[da]C[You just gave Black 1 extra prisoner. He also could have responded e16 and fought the ko. Since you have a chance to kill cleanly, giving him this chance is wrong.])
(;W[da]
(;B[ed])
(;B[de]C[If B wants to try a ko he can play this way, but usually he'd just connect at c19 and you would have wasted a move.];W[ca];B[bb];W[bd];B[ad];W[bf];B[bg];W[ae];B[ag];W[ac]C[Ko for the 4 white stones, but you could have saved them unconditionally.])))