(;FF[4]CA[UTF-8]AP[GoGui:1.4.9]
KM[6.5]DT[2019-09-15]
AB[gb][gc][ib][fd][ed][dd][ce][be]AW[cc][ec][fb]PL[W]
(;W[bb]C[White dies.];B[db];W[dc];B[eb]
(;W[fc];B[ac]
(;W[ab];B[fa])
(;W[fa];B[ab]))
(;W[bd];B[fa]
(;W[ac];B[cb])
(;W[cb];B[ac])))
(;W[db]C[Ko]
(;B[ab];W[bb];B[bc];W[ea];B[ca];W[ba];B[dc];W[cb];B[fc];W[bd]
;B[ad])
(;B[bc];W[bb];B[ab];W[ea];B[ca];W[ba];B[dc];W[cb];B[fc];W[bd]
;B[ad])
(;B[bb];W[bc];B[ba];W[dc];B[ab];W[ea];B[ac];W[ad];B[cb];W[bd]
;B[da];W[ca])))
