(;AB[bs]AB[br]AB[cr]AB[dq]AB[dp]AB[ep]AB[cp]AB[co]AB[bn]AB[cm]AW[ar]AW[bq]AW[cq]AW[bp]AW[bo]AW[ao]AW[dr]AW[er]AW[eq]AW[fp]AW[gq]AP[goproblems] (;B[aq] (;W[ds]C[CHOICE] (;B[an]C[RIGHT]) (;B[cs];W[as]) (;B[as];W[cs] (;B[an];W[ar]) (;B[ap];W[ar]) (;B[ar];W[ap]))) (;W[ap];B[an]C[RIGHT];W[aq])) (;B[ap];W[aq]TR[as]C[White made an eye. Now Black will never be able to approach, due a shortage of liberties.]) (;B[an];W[aq]TR[as]C[White made an eye. Now Black will never be able to approach, due a shortage of liberties.]) (;B[as];W[cs]) (;B[ds];W[aq]TR[as]C[White made an eye. Now Black will never be able to approach, due a shortage of liberties.]) (;B[cs];W[aq]TR[as]C[White made an eye. Now Black will never be able to approach, due a shortage of liberties.]))