(;AP[goproblems]AB[ab]AB[bc]AB[bd]AB[cf]AB[ee]AB[fe]AB[gd]AB[gc]AB[gb]AW[fc]AW[ed]AW[dd]AW[cc]AW[bb]C[White to KO](;W[db];B[ba](;W[ca]C[RIGHT])(;W[cb];B[fb])(;W[eb];B[cb])(;W[fb];B[cb]))(;W[cb];B[eb](;W[db];B[ec])(;W[ec];B[fb]))(;W[eb];B[cb])(;W[fb];B[cb];W[db];B[ba](;W[ea](;B[ec]C[CHOICE])(;B[cd]C[CHOICE]))(;W[ec];B[ea]))(;W[ca];B[db])(;W[ba];B[eb])(;W[ec];B[db])(;W[dc];B[eb])(;W[ea];B[cb]))