(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
AW[cn][en][in][co][fo][go][jo][bp][fp][cq][iq][jq][kq][cr][ds][es]AB[cp][dp][gp][hp][dq][dr][fr][hr][ir][fs]C[Black to play and get a ko.]PL[B]
;B[fq]
;W[jr]
(;B[bq]
;W[br]
;B[ar]
;W[aq]
;B[bs])
(;B[ep]TR[ep]C[Mistake and leads to death]
;W[er]
;B[bq]
;W[br]
(;B[bs]
;W[aq]
;B[ar]
;W[cs])
(;B[ar]
;W[aq]
;B[bs]
;W[cs]))
(;B[bs]
(;W[br]
;B[bq]
;W[aq]
;B[ar])
(;W[ep]
;B[bq]
;W[br]
;B[ar]
;W[aq]
;B[er])))
