(;AP[goproblems]AB[ar]AB[br]AB[dr]AB[ds]AB[dq]AB[cp]AB[co]AB[bo]AB[do]AB[eo]AB[fr]AB[gr]AB[hr]AB[iq]AB[ip]AW[aq]AW[bp]AW[cq]AW[cr]AW[cs]AW[bs]AW[er]AW[dp]AW[ep]AW[fo]AW[ho]AW[hq]AW[gq]AW[fq]TR[dq]TR[dr]TR[ds]C[Black tto save marked stones](;B[fs];W[eq](;B[es]C[RIGHT])(;B[ir];W[es])(;B[is];W[es]))(;B[es];W[fs](;B[gs];W[eq](;B[fs];W[ir])(;B[ir];W[fs])(;B[jr];W[fs])(;B[is];W[fs]))(;B[eq];W[er]))(;B[eq];W[es])(;B[gs];W[es]))