(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[White]PB[Black]AW[jn][ln][mn][nn][ko][oo][jp][op][fq][hq][iq][jq][nq][oq][pq][qq]AB[lo][mo][no][kp][np][kq][mq][lr]C[White to kill.]PL[W]
;W[lp]CR[lp]
;B[mp]CR[mp]
(;W[ls]CR[ls]C[this correponds to the proverb: "play at the point of symmetry".]
(;B[jr]CR[jr]
;W[mr]CR[mr]
;B[lq]CR[lq]
;W[ks]LB[lp:1][mp:2][lq:6][jr:4][mr:5][ks:7][ls:3]C[only one eye.])
(;B[ks]CR[ks]C[variation.]
;W[jr]CR[jr]
;B[nr]CR[nr]
;W[kr]CR[kr]
;B[lq]CR[lq]
;W[ms]CR[ms]C[still no eye on the bottom.]))
(;W[mr]CR[mr]C[not good.]
;B[lq]CR[lq]
;W[ns]CR[ns]
;B[jr]CR[jr]
;W[ir]CR[ir]
;B[ks]CR[ks]C[whit can only make ko now.]))