(;TR[es]TR[er]TR[dr]TR[dq]TR[cq]TR[cp]TR[bp]AB[cr]AW[bq]TR[ap]AW[ar]C[FORCE]AP[goproblems] (;B[as]TR[cq]TR[cp]TR[bp]TR[ap]TR[dq]TR[dr]TR[er]TR[es]LB[br:a]LB[bs:b]LB[cs:c]C[FORCE] (;W[br]TR[ap]TR[cp]TR[bp]TR[cq]TR[dq]TR[dr]TR[er]TR[es]) (;W[bs]TR[ap]TR[bp]TR[cp]TR[cq]TR[dq]TR[dr]TR[er]TR[es]) (;W[cs]TR[ap]TR[bp]TR[cp]TR[cq]TR[dq]TR[dr]TR[er]TR[es])) (;B[br]TR[ap]TR[bp]TR[cp]TR[cq]TR[dq]TR[dr]TR[er]TR[es]C[RIGHT]) (;B[bs]TR[ap]TR[bp]TR[cp]TR[cq]TR[dq]TR[dr]TR[er]TR[es]LB[cs:a]C[FORCE];W[cs]TR[ap]TR[bp]TR[cp]TR[cq]TR[dq]TR[dr]TR[er]TR[es]C[white starts ko.]) (;B[cs]TR[ap]TR[bp]TR[cp]TR[cq]TR[dq]TR[dr]TR[er]TR[es]LB[bs:a]C[FORCE];W[bs]TR[ap]TR[bp]TR[cp]TR[cq]TR[dq]TR[dr]TR[er]TR[es]) (;B[ds]TR[es]TR[er]TR[dr]TR[dq]TR[cq]TR[cp]TR[bp]TR[ap]))