(;AW[cc]AB[bb]AB[cb]AB[bc]AB[ca]AB[ab]AW[bd]AW[cd]AW[db]AW[ad]AW[da]AB[ae]AB[be]AB[de]AB[ce]AB[ed]AB[ec]AB[fb]AW[dc]C[White to live in the corner.]AB[fc]AB[gb]AP[goproblems]
(;W[ba];B[ea];W[ac];B[dd];W[aa];B[bb];W[cb]C[RIGHT])
(;W[ac];B[ba];W[aa];B[bb])
(;W[aa];B[ba];W[ac];B[ea];W[aa];B[bb]))