(;AB[an]AB[bn]AB[cn]AB[dn]AB[en]AB[fn]AB[gn]AB[go]AB[gp]AB[gq]AB[gr]AB[gs]AW[aq]AW[eq]AW[co]AW[cs]AW[es]AP[goproblems]
(;B[dr];W[dq]
(;B[br]
(;W[bp]
(;B[bq];W[cr]
(;B[cp];W[cq];B[ap];W[ao]
(;B[bo];W[dp]C[];B[ap]C[RIGHT])
(;B[ar];W[bs];B[ap]C[RIGHT]))
(;B[ap];W[ao]
(;B[cp];W[cq]
(;B[bo];W[dp]C[];B[ap]C[RIGHT])
(;B[ar];W[bs];B[ap]C[RIGHT]))
(;B[bo];W[cp];B[ap]C[RIGHT])))
(;B[er];W[cr];B[fr];W[bs]C[FORCE])
(;B[cr];W[er];B[cq];W[cp])
(;B[cq];W[cr]))
(;W[cr];B[bq];W[bp]
(;B[cp];W[cq];B[ap];W[ao]
(;B[bo];W[dp]C[];B[ap]C[RIGHT])
(;B[ar];W[bs];B[ap]C[RIGHT]))
(;B[ap];W[ao]
(;B[cp];W[cq])
(;B[bo];W[cp];B[ap]C[RIGHT]))))
(;B[cr];W[cq]
(;B[er];W[br])
(;B[br];W[er]))
(;B[er];W[cr]
(;B[fr];W[bp];B[br];W[bs])
(;B[fq];W[bp]))
(;B[bq];W[br];B[er];W[cr])
(;B[cq];W[cr]))
(;B[cq];W[cr])
(;B[br];W[bq];B[dr];W[er];B[cr];W[cq])
(;B[cr];W[cq];B[dr];W[er]
(;B[br];W[bq])
(;B[dq];W[dp];B[bq];W[br];B[cp];W[bp]))
(;B[er];W[dr])
(;B[bq];W[br]
(;B[cq];W[cr])
(;B[dr];W[dq];B[er];W[cr])))