(;AB[ab][bb][cc][ec][eb][fa]AW[ac][be][ce][ba][fb][hb][fc][fd][dd][ed]PL[B]
(;B[ca];W[da]
(;B[aa]C[RIGHT Black lives])
(;PL[B]B[ea];W[cb]C[No, no, no!]))
(;PL[B]B[dc];W[da];B[ea];W[cb]C[Wrong approach - white builds a nakade inside.])
(;PL[B]B[cb];W[dc]C[Slack!])
(;PL[B]B[bd];W[da];B[dc];W[ea];B[ca];W[cb]C[This is a ko]))