(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[5]KM[0.00]
PW[White]PB[Black]AW[ba][dc][ec][ad][bd][dd]AB[cb][db][eb][bc]
(;B[cc]CR[cc]
;W[cd]CR[cd]
(;B[ac]CR[ac]
;W[ca]CR[ca]
;B[da]CR[da]
;W[ab]CR[ab])
(;B[ab]CR[ab]C[RIGHT Notice black need not answer w a3.]))
(;B[ac]CR[ac]
;W[cc]CR[cc]
;B[bb]CR[bb]))