(;AB[ab]AB[bc]AB[cc]AB[dc]AB[ec]AB[eb]AB[ea]AW[ba]AW[da]AW[fb]AW[fc]AW[fd]AW[ed]AW[dd]AW[cd]AW[bd]AW[ad]AW[ac]AP[goproblems]
(;B[cb];W[ca];B[bb]C[RIGHT])
(;B[ca];W[cb]C[];B[bb]C[This is not seki, Black is dead];W[ca]
(;B[db];W[fa];B[aa];W[ca])
(;B[aa];W[fa];B[db];W[ca]))
(;B[bb];W[cb]C[]))