(;AB[bb]AB[cb]AB[db]AB[eb]AW[bc]AW[cc]AW[dc]AW[ec]AW[fc]AW[be]AW[gc]AW[ic]AP[goproblems]
(;B[ab]
(;W[fb]
(;B[ea];W[ba];B[ca]C[RIGHT])
(;B[ba];W[ea];B[da]C[RIGHT])
(;B[ca];W[ea])
(;B[da];W[ba])
(;B[fa];W[ea]
(;B[ba];W[da]
(;B[ca];W[ea];B[ga];W[hb])
(;B[ga];W[hb];B[ca];W[ea]))
(;B[da];W[ba]
(;B[ga];W[hb])
(;B[gb];W[hb])
(;B[ha];W[ib];B[ia];W[kb])
(;B[ca];W[ga]C[only one eye]))
(;B[ga];W[hb]
(;B[ba];W[da];B[ca];W[ea])
(;B[da];W[ba])
(;B[ha];W[ia];B[da];W[ba]))))
(;W[ba];B[fb];W[ca];B[gb];W[hb];B[ga]C[RIGHT])
(;W[ea];B[fb]
(;W[gb];B[fa]C[RIGHT])
(;W[fa];B[gb]
(;W[hb];B[ga]C[RIGHT])
(;W[ga];B[ha]C[RIGHT]))))
(;B[fb];W[ab]
(;B[gb];W[hb]
(;B[ga];W[ba]
(;B[ca];W[ea])
(;B[ea];W[ca];B[da];W[ac];B[aa];W[ba]))
(;B[ba];W[ga]
(;B[fa];W[da])
(;B[da];W[fa])))
(;B[ba];W[gb]
(;B[fa];W[da])
(;B[da];W[fa])
(;B[ga];W[hb]
(;B[da];W[fa])
(;B[fa];W[da])
(;B[ha];W[ia];B[fa];W[da])))
(;B[aa];W[ba];B[ca];W[gb]
(;B[aa];W[ac])
(;B[ac];W[ad]))
(;B[hb];W[gb];B[ga];W[ib])
(;B[da];W[gb]
(;B[ba];W[fa])
(;B[fa];W[ba])))
(;B[ac];W[fb]
(;B[ea];W[ab]
(;B[aa];W[ca])
(;B[ca];W[ad]))
(;B[ba];W[ab])
(;B[ab];W[ba]
(;B[ea];W[ca])
(;B[ca];W[ea]))
(;B[ca];W[ea])
(;B[fa];W[ga];B[ea];W[ab]
(;B[ca];W[ad])
(;B[aa];W[ca]))
(;B[aa];W[ea]C[a18 is only a false eye]))
(;B[ea];W[ab]C[Black has one eye around C19; no eye can be made on the right.])
(;B[ba];W[ab]
(;B[fb];W[gb]
(;B[fa];W[da])
(;B[da];W[fa]))
(;B[da];W[fb]))
(;B[ca];W[ab]
(;B[fb];W[gb])
(;B[aa];W[ac];B[fb];W[gb])
(;B[ea];W[fb]))
(;B[da];W[fb]
(;B[ab];W[ba])
(;B[ba];W[ab]))
(;B[aa];W[fb]
(;B[ca];W[ea])
(;B[ea];W[ca])
(;B[fa];W[ga];B[ea];W[ca])
(;B[ac];W[ea]C[a18 is only a false eye]))
(;B[fa];W[ab]
(;B[fb];W[gb]
(;B[ba];W[da])
(;B[da];W[ba]))
(;B[ba];W[gb]
(;B[fb];W[da])
(;B[da];W[fb])
(;B[ga];W[hb]))
(;B[gb];W[hb];B[ba];W[fb])
(;B[ha];W[ib];B[hb];W[hc]
(;B[gb];W[fb])
(;B[fb];W[gb]
(;B[ba];W[da])
(;B[da];W[ba])))
(;B[ga];W[hb])
(;B[hb];W[gb];B[ga];W[ib];B[ia];W[jb]))
(;B[gb];W[fb]
(;B[fa];W[hb]
(;B[ab];W[ea]
(;B[ba];W[da];B[ca];W[ea])
(;B[da];W[ba]))
(;B[ga];W[ab])
(;B[ea];W[ab])
(;B[ha];W[ia]
(;B[ga];W[ea])
(;B[ab];W[ba]
(;B[ca];W[ea])
(;B[ea];W[ca]))
(;B[ea];W[ab])))
(;B[ab];W[ea];B[da];W[ba];B[fa];W[hb])
(;B[ea];W[ab];B[fa];W[hb]))
(;B[ga];W[fb];B[fa];W[hb]
(;B[ea];W[ab])
(;B[ab];W[ea]
(;B[ba];W[da];B[ca];W[ea])
(;B[da];W[ba]))))