(;AP[goproblems]AB[ca]AB[db]AB[cc]AB[bc]AB[bd]AW[ea]AW[eb]AW[ec]AW[dc]AW[cd]AW[ce]AW[be]AW[ae](;B[ab];W[ad](;B[ba]C[];W[da](;B[cb]C[RIGHT])(;B[ac];W[cb]))(;B[bb];W[da])(;B[da];W[ba])(;B[cb];W[ba])(;B[ac];W[da](;B[ba];W[cb])(;B[cb];W[ba])))(;B[bb];W[da](;B[aa];W[cb]C[Disadv. ko])(;B[cb];W[ad](;B[ac];W[aa]C[])(;B[aa];W[ac]C[]))(;B[ad];W[cb])(;B[ac];W[aa])(;B[ab];W[ad]))(;B[ad];W[ab];B[bb];W[da];B[aa];W[cb]TR[db]LB[ba:A]C[])(;B[ba];W[ab](;B[da];W[ad](;B[bb];W[ac]C[])(;B[ac];W[bb]C[]))(;B[bb];W[da]C[]))(;B[da];W[ba])(;B[ac];W[bb])(;B[cb];W[ab]))