(;AW[bo][co][do][eo][fo][gp][gq][gr][fs]AB[bp][cp][dp][ep][fp][fq][fr]
;B[es]CR[es]
;W[gs]CR[gs]
(;B[br]CR[br]
;W[er]CR[er]
;B[ds]CR[ds]
;W[dr]CR[dr]
;B[cs]CR[cs]
;W[bs]CR[bs]
(;B[as]CR[as]
;W[cr]CR[cr]
;B[bs]CR[bs]
;W[bq]CR[bq])
(;B[cr]CR[cr]C[RIGHT]))
(;B[dr]CR[dr]
;W[ap]CR[ap]
;B[aq]CR[aq]
;W[ao]CR[ao]
(;B[br]CR[br]C[Now white has been able to play at A4 in sente.])
(;B[bq]CR[bq]C[Now white has been able to play at A4 in sente.]))
(;B[er]CR[er]
;W[ap]CR[ap]
;B[aq]CR[aq]
;W[ao]CR[ao]
(;B[bq]CR[bq]C[Now white has been able to play at A4 in sente.])
(;B[br]CR[br]C[Now white has been able to play A4 in sente.])))