(;FF[4]
CA[UTF-8]
GM[1]
GN[Demo Board]
PC[https://online-go.com/review/638820]
PB[Black]
PW[White]
BR[3p]
WR[3p]
OT[Error: time control missing]
RE[?]
SZ[19]
KM[6.5]
RU[Japanese]

(;AW[ab]
;AW[ac]
;AW[cb]
(;AW[cd]
)(;AW[cc]
(;AW[bd]
;AW[db]
;AW[eb]
;AW[ea]
;AB[ca]
;AB[fa]
;AB[fb]
)(;AW[dc]
;AW[eb]
;AB[cd]
;AB[dd]
;AB[ad]
;AB[bd]
;AB[ec]
;AB[fb]
;AB[gc]
;AB[ca]
(;AW[ea]
(;B[db]
;W[bb]
;B[da]
;W[ba]
;B[ca]
;W[da]
)(;B[ba]
;W[aa]
(;B[bb]
;W[bc]
;B[da]
;W[db]
)(;B[fa]
;W[db]
;B[bc]
;W[bb]
)))(;B[ba]
))))(;AB[ab]
;AB[bb]
;AB[dc]
;AB[db]
;AB[eb]
;AW[ac]
;AW[bc]
;AW[cd]
;AW[dd]
;AW[ec]
;AW[fb]
;AW[gc]
;AW[ed]
;AW[bd]
;B[ol]
;W[cb]
(;B[ca]
;W[cc]
)(;B[cc]
;W[ca]
;B[da]
;W[ba]
;B[aa]
;W[ca]
))(;AE[ab]
;AE[bb]
;AE[dc]
;AE[db]
;AE[eb]
;AE[ac]
;AE[bc]
;AE[cd]
;AE[dd]
;AE[ec]
;AE[fb]
;AE[gc]
;AE[ed]
;AE[bd]
;B[ol]
;W[cb]
;B[cc]
;W[ca]
;B[da]
;W[ba]
;B[aa]
))