(;AP[goproblems]AB[db]AB[dc]AB[de]AB[ca]AB[bb]AB[be]AB[af]AB[bf]AB[cf]AB[bg]AW[cb]AW[cc]AW[cd]AW[ce]AB[dd]AW[bd]AW[ad]AW[df]AW[dg]AW[ch]AW[bh]MA[be]MA[bf]MA[af]MA[bg]MA[cf]C[white's best result](;W[ae];B[ac])(;W[cg];B[ac](;W[ah];B[bc])(;W[ag];B[ah];W[ai];B[bc];W[ag];B[ae]))(;W[ah];B[ac];W[cg];B[bc])(;W[bc];B[ae])(;W[ac];B[ba](;W[cg];B[ab];W[ah];B[bc])(;W[aa];B[ab](;W[cg];B[bc])(;W[bc];B[ae]))(;W[ab];B[bc](;W[cg];B[da];W[ah];B[aa])(;W[aa];B[ae]))(;W[bc];B[ab]))(;W[ab];B[ba](;W[bc];B[ae])(;W[ac];B[da];W[cg];B[aa];W[ah];B[bc])(;W[cg];B[bc](;W[ag];B[ah];W[ai];B[ac])(;W[ah];B[ac])(;W[ac];B[da](;W[ag];B[ah];W[ai];B[aa];W[ag];B[ae])(;W[ah];B[aa]))))(;W[ba];B[aa](;W[bc];B[ae])(;W[ac];B[ab](;W[cg];B[ah];W[ai];B[bi];W[ag]C[black played a direct-ko. Of course, it can mean a lot of ko-threats given to white while escaping on the border, but finally the result will be good for black because it gives influence RIGHT])(;W[ah];B[ae](;W[cg];B[bc])(;W[ag];B[bc])))(;W[ah];B[ac](;W[ag];B[bc])(;W[cg];B[bc])(;W[bc];B[ae]))(;W[cg];B[ac];W[ah];B[bc])))