(;AW[bq][cq][dq][cp][ep][fp][gp][ho][hn][hm][gl][fl][el][dl][cl][bm]AB[em][fm][gm][gn][go][dn][do][dp][cn][co][bn][ao][bp]C[Black to live]SZ[19]
(;B[fo];W[eo]
(;B[en]C[RIGHT])
(;B[dm];W[en])
(;B[ap];W[en])
(;B[an];W[en])
(;B[am];W[al]
(;B[ap];W[en])
(;B[en];W[an]LB[bo:a]C[Black now has to fight ko to get second eye at a.])))
(;B[eo];W[fo]
(;B[fn];W[dm])
(;B[en])
(;B[dm];W[fn])
(;B[am];W[al];B[fn];W[dm]))
(;B[en];W[fo])
(;B[dm];W[eo])
(;B[am];W[al];B[fo];W[eo];B[en];W[an]C[Black now has to fight ko to get second eye at a.]LB[bo:a])
(;B[ap];W[fo]))