(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
AW[jk][jl][hm][lm][fn][gn][mn][nn][ho][io][jo][ko][lo]AB[gl][ml][gm][mm][hn][in][jn][kn][ln][go][mo][gp][jp][mp][gq][hq][iq][kq][lq][mq]KK[^Bestiary^Xuanxuan Qijing^Symmetry]
;B[en]C[The nose tesuji is the only move (well, are the only moves)]
(;W[fo]C[If instead, white goes up...]
;B[eo]
;W[fp]
;B[ep]
;W[fq]
;B[fr]
;W[eq]
;B[dq]
;W[er]
;B[dr]
;W[es]
;B[fm]
;W[gr]
;B[on]
;W[no]
;B[oo]
;W[np]
;B[op]
;W[nq]
;B[nr]
;W[oq]
;B[pq]
;W[or]
;B[pr]
;W[os]
;B[nm]
;W[mr]
(;B[hs]C[For the moment, the other attack fails]
(;W[hr]
(;B[ms]C[The symetry must be broken (is this really essential ?)]
(;W[ns]C[forced, because of hte snapback]
;B[ls]
;W[lr]
;B[ks]
;W[kr]
;B[is]
;W[ir]
;B[jr]C[Incredible])
(;W[lr]
;B[ps]))
(;B[ls]
;W[ns]
;B[ms]
;W[lr]
;B[ks]
;W[kr]
;B[is]
;W[fs]C[hite could maintain the symmetry to the end]
(;B[gs]
;W[ir]
;B[jr])
(;B[js]C[or could he ?])))
(;W[fs]
;B[ls]
;W[lr]
;B[ks]
;W[kr]
(;B[ds]
;W[hr])
(;B[js]
;W[jr]
;B[ms]
;W[ns]
;B[is]
;W[jm]
;B[ps]
;W[nr]
;B[ir]C[this fails too
])))
(;B[gs]C[If Black starts here...]
;W[fs]
;B[hs]
;W[hr]
;B[is]
;W[ir]
;B[ls]
;W[ns]
;B[ms]
;W[lr]
;B[ks]
;W[kr]
;B[jr]
;W[js]C[the symetry was never broken, so...]))
(;W[fm]
;B[fl]
;W[em]
;B[el]
;W[dm]
;B[im]
;W[hl]
;B[il]
;W[hk]
;B[ik]
;W[ij]
;B[hj]
;W[gk]
;B[gj]
;W[fk]
;B[ek]
;W[fj]
;B[fi]C[he is caught in this ladder]))