(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[White]PB[Black]AW[op][kq][nq][oq][pq][mr][pr]AB[ln][io][ko][no][oo][qo][gp][hp][np][pp][qq][hr][qr]C[Black to kill.]
(;B[lq]CR[lq]
(;W[lr]CR[lr]
;B[jr]CR[jr]
;W[kr]CR[kr]
;B[ks]CR[ks]
;W[ls]CR[ls]
;B[ns]CR[ns]
;W[lp]CR[lp]
;B[mp]LB[lp:8][mp:9][lq:1][jr:3][kr:4][lr:2][ks:5][ls:6][ns:7]C[only one eye.])
(;W[lp]CR[lp]C[variation.]
;B[kr]CR[kr]
;W[lr]CR[lr]
;B[jr]LB[kp:B][mp:A]CR[jr]C[white can not get both A(N4) and B(L4) and only has one eye on the bottom.]))
(;B[jr]CR[jr]C[not good.]
;W[kr]CR[kr]
;B[lq]CR[lq]
;W[lp]CR[lp]
;B[mp]CR[mp]
;W[mq]CR[mq]
;B[kp]CR[kp]
;W[ns]CR[ns]
;B[ls]CR[ls]
;W[ks]CR[ks]C[alive.]))