(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
AW[dn][fn][ao][bo][co][eo][fp][aq][bq][eq][ar][br][cr][er][bs][cs][es]AB[ap][bp][cp][dp][dq][dr][ds]KK[^Bestiary^Symmetry]
;B[cq]
;W[ep]
;B[as]
;W[br]
(;B[bs]
;W[ar]
;B[cr]
;W[cs]
;B[bs]
;W[as]C[Mannenko (ten thousand year ko, unfavorable for both players) : Black cannot crush it (oshitsubushi)]
(;B[bq]
;W[cs]C[this ko is bad for Black, and she cannot crush it]
(;B[aq]
;W[do])
(;B[]
;W[bs]C[Black is dead (bulky five)]
;B[aq]
;W[bs]))
(;B[]
;W[cs]
;B[]
(;W[bs]C[White only get a seki])
(;W[do]
;B[]
;W[bq]
;B[bs]C[This ko is favorable to Black, especially as she already played twice elsewhere])))
(;B[ar]
;W[bs]
;B[bq]
;W[aq]
;B[ar]
;W[as]C[A symetrical problem])
(;B[cs]
;W[bs]
(;B[]
;W[ar]C[Black is dead])
(;B[ar]
;W[aq]
;B[bq]
;W[ar]C[Here again, Black cannot approach]))
(;B[cr]C[The worst move]
;W[bs]
;B[ar]
;W[aq]
;B[bq]
;W[ar]C[This doesn't work (eye against no eye)]))