(;SZ[19]AB[ad]AB[ae]AB[be]AB[ce]AB[de]AB[ed]AB[ec]AB[fc]AB[fb]AB[gb]AB[hc]AB[hd]AB[jd]AW[ee]AW[ef]AW[fd]AW[gd]AW[gc]AW[ff]AW[gf]AW[hf]AW[he]AW[jf]AW[ac]AW[bd]AW[cd]AW[dd]AW[cb]C[White to play and live without ko.]FF[4]GM[1]AP[Jago:Version 4.18]
(;W[ab];B[ba]
(;W[db];B[bb]
(;W[cc];B[ea]
(;W[da];B[bc]
(;W[df];B[eb];W[cf];B[dc];W[bf];B[ca])
(;W[ca];B[dc];W[aa];B[bb]
(;W[df];B[eb];W[cf];B[ba])
(;W[eb];B[ba]
(;W[fa];B[bc])
(;W[bc];B[ba];W[fa];B[hb];W[df];B[ga];W[cf];B[ea]C[White gets a bad ko (black has taken first).])))
(;W[eb];B[fa];W[hb];B[ib];W[df];B[ha];W[cf];B[dc];W[bf];B[ca]))
(;W[ca];B[da]
(;W[bc];B[eb]
(;W[df];B[dc];W[aa];B[ba])
(;W[aa];B[ba];W[df];B[dc]))
(;W[df];B[eb];W[cf];B[dc]))
(;W[eb];B[da];W[ca];B[fa]))
(;W[dc];B[bc]
(;W[ca];B[aa];W[ac];B[ab];W[cc];B[ac])
(;W[cc];B[aa];W[ac];B[ab];W[ca];B[ac]))
(;W[ca];B[dc]
(;W[cc];B[eb];W[df];B[ea];W[cf];B[da])
(;W[bc];B[cc];W[aa];B[bb];W[ba];B[eb];W[df];B[ea];W[cf];B[da];W[bf];B[bb]))
(;W[bc];B[dc]
(;W[cc];B[da]
(;W[ea];B[eb];W[ca];B[hb];W[df];B[bg]C[Black escapes])
(;W[ca];B[ea])
(;W[eb];B[ea];W[ca];B[fa]
(;W[hb];B[aa])
(;W[aa];B[ba])))
(;W[ca];B[cc];W[aa];B[bb];W[ba];B[ea];W[df];B[da];W[cf];B[eb];W[bf];B[bb])
(;W[da];B[cc];W[ca];B[aa];W[bc];B[ac];W[ab];B[bd])
(;W[eb];B[cc];W[ca];B[aa];W[bc];B[ac];W[ab];B[ea])
(;W[ea];B[cc];W[ca];B[aa];W[bc];B[ac];W[ab];B[eb])))
(;W[bb];B[db]
(;W[ca];B[cc])
(;W[dc];B[ca]))
(;W[cc];B[da]
(;W[bb];B[ca]
(;W[db];B[ea])
(;W[ea];B[db]))
(;W[ca];B[bb];W[db];B[ea]
(;W[bc];B[eb]
(;W[df];B[dc];W[aa];B[ba])
(;W[aa];B[ba];W[df];B[dc]))
(;W[df];B[eb];W[cf];B[dc]))
(;W[db];B[ea];W[ca];B[bb]
(;W[bc];B[eb]
(;W[df];B[dc];W[aa];B[ba])
(;W[aa];B[ba];W[df];B[dc]))
(;W[df];B[eb];W[cf];B[dc])))
(;W[bc];B[dc]
(;W[db];B[da]
(;W[ea];B[eb]
(;W[df];B[bg]C[Black escapes, white dead])
(;W[ca];B[bg]))
(;W[eb];B[ea]))
(;))
(;W[dc];B[db]
(;W[ca];B[bc];W[cc];B[bb];W[aa];B[bb])
(;W[bc];B[ca])
(;W[da];B[eb]
(;W[bb];B[ca];W[aa];B[ca])
(;W[bc];B[ca])
(;W[ca];B[bc];W[cc];B[bb];W[aa];B[bb]))
(;W[bb];B[ca]))
(;W[ca];B[dc]
(;W[cc];B[bb])
(;W[bb];B[cc]))
(;W[da];B[dc]
(;W[bb];B[cc])
(;W[cc];B[bb];W[db];B[bc])))
(;W[bb]C[White gets an eye in the corner and at B17 or C17 RIGHT])
(;W[bc];B[dc]
(;W[ba];B[ab]
(;W[db];B[da]
(;W[ea];B[eb];W[df];B[cc];W[bb];B[bg]C[Black's lower group escapes])
(;W[eb];B[ea];W[df];B[cc];W[bb];B[bg]C[Black's lower group escapes.])
(;W[ca];B[cc];W[bb];B[ea];W[df];B[eb])
(;W[cc];B[eb];W[df];B[bb];W[aa];B[bg]C[Black escapes]))
(;W[da];B[db];W[df];B[cc];W[bb];B[bg]C[Black escapes])
(;W[eb];B[db];W[df];B[cc];W[bb];B[bg]C[Black escapes]))
(;W[bb];B[ca]
(;W[db];B[da]
(;W[eb];B[ea]
(;W[ba];B[fa];W[df];B[cc];W[cf];B[ab])
(;W[df];B[ba];W[cf];B[cc]))
(;W[ea];B[eb];W[ba];B[da];W[df];B[bg]C[Black escapes]))
(;W[da];B[db];W[df];B[bg]C[Black escapes]))
(;W[ab];B[ba];W[db];B[da];W[ea];B[eb]
(;W[df];B[bg]C[Black escapes, white dead])
(;W[ca];B[bg]))
(;W[ca];B[db]C[Only space for one eye and black's lower group can escape])
(;W[db];B[da]
(;W[eb];B[ea]
(;W[ca];B[fa])
(;W[ba];B[ab];W[df];B[cc];W[bb];B[bg]C[Black's lower group escapes.])
(;W[ab];B[ba])
(;W[bb];B[ca]
(;W[ba];B[fa];W[df];B[cc];W[cf];B[ab])
(;W[df];B[ba];W[cf];B[cc])))
(;W[ea];B[eb]
(;W[ba];B[ab];W[df];B[cc];W[bb];B[bg]C[Black's lower group escapes])
(;W[bb];B[ca];W[ba];B[da];W[df];B[bg]C[Black escapes])
(;W[ab];B[ba]
(;W[df];B[bg]C[Black escapes, white dead])
(;W[ca];B[bg]))))
(;W[da];B[ba]))
(;W[dc];B[bc])
(;W[db];B[bc])
(;W[ca];B[bc];W[ab];B[cc])
(;W[ba];B[bc];W[ab];B[cc])
(;W[aa];B[bc];W[bb];B[ab]C[White gets a ko.])
(;W[da];B[bc];W[ab];B[cc])
(;W[eb];B[bc]
(;W[cc];B[bb];W[ba];B[ab])
(;W[bb];B[ab]
(;W[dc];B[ea];W[da];B[hb];W[fa];B[ba];W[ca];B[ac];W[df];B[bg])
(;W[cc];B[ac];W[dc];B[ea];W[da];B[hb];W[fa];B[ba])))
(;W[cc];B[bb]
(;W[bc];B[db]
(;W[ca];B[da])
(;W[ba];B[ab])
(;W[ab];B[ba]))
(;W[ba];B[ab]
(;W[db];B[bc];W[aa];B[ac])
(;W[da];B[bc];W[aa];B[ac])
(;W[bc];B[db]))
(;W[db];B[bc])
(;W[ab];B[ba];W[db];B[da]
(;W[eb]
(;B[ea];W[ca];B[fa])
(;))
(;W[ea];B[eb]))
(;W[aa];B[ba];W[db];B[da];W[ea];B[eb])))