(;AB[as]AB[bs]AB[br]AB[ar]TR[cs]TR[cr]TR[cq]TR[cp]TR[co]TR[bo]TR[bn]TR[an]AB[bq]C[The triangles are edges of the board. White to win.FORCE]AP[goproblems]
(;W[ap]TR[cs]TR[cr]TR[cq]TR[cp]TR[co]TR[bo]TR[bn]TR[an]C[RIGHT])
(;W[ao]TR[cs]TR[cr]TR[cq]TR[cp]TR[bo]TR[bn]TR[an]AB[an]AB[bn]AB[bo]TR[co]C[FORCE];B[ap]TR[cs]TR[cr]TR[cq]TR[cp]TR[bo]TR[bn]TR[an]TR[co])
(;W[bp]TR[cs]TR[cr]TR[cq]TR[cp]TR[co]TR[bo]TR[bn]TR[an]AB[bo]AB[co]AB[cp]C[FORCE];B[ap]TR[cs]TR[cr]TR[cq]TR[cp]TR[co]TR[bo]TR[bn]TR[an])
(;W[aq]TR[cs]TR[cr]TR[cq]TR[cp]TR[co]TR[bo]TR[bn]TR[an]C[FORCE];B[ap]TR[cs]TR[cr]TR[cq]TR[cp]TR[co]TR[bo]TR[bn]TR[an]))