(;AP[goproblems]AW[ap]AW[bq]AW[br]AW[bs]AW[cs]AB[bp]AB[bo]AB[co]AB[cq]AB[cr]AB[dr]AB[ds]AW[cp]AW[dp]AW[fp]AW[eq]AW[fr]TR[bq]TR[br]TR[bs]TR[cs](;B[aq];W[ar];B[ao];W[er];B[aq]C[it is only ko])(;B[ar];W[er](;B[aq];W[as];B[aq]C[RIGHT])(;B[ao];W[dq])(;B[as];W[aq](;B[ao];W[dq])(;B[ar];W[dq])(;B[as];W[dq])))(;B[ao];W[dq](;B[ar];W[er])(;B[aq];W[er])(;B[as];W[er]))(;B[er];W[dq]))