(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00]TM[] PW[White]PB[Black]AW[bl][bn][cn][dn][do][dp][bq][dq][br][dr][fr][bs]AB[bo][co][ap][cp][cq][ar][cr][cs]C[white to kill]PL[W] (;W[an]CR[an] (;B[ao]CR[ao] (;W[aq]CR[aq]C[RIGHT CHOICE]) (;W[ds]CR[ds] ;B[aq]CR[aq]C[seki]) (;W[as]CR[as] ;B[aq]CR[aq]) (;W[bp]CR[bp] ;B[aq]CR[aq])) (;B[aq]CR[aq] (;W[ao]CR[ao]C[RIGHT CHOICE]) (;W[bp]CR[bp] ;B[as]CR[as]) (;W[ds]CR[ds] ;B[ao]CR[ao]C[seki]))) (;W[ds]CR[ds] ;B[aq]CR[aq] ;W[an]CR[an] ;B[ao]CR[ao]C[seki]) (;W[aq]CR[aq] ;B[bp]CR[bp] (;W[as]CR[as] ;B[ar]CR[ar]) (;W[ds]CR[ds] ;B[as]CR[as])) (;W[as]CR[as] ;B[bp]CR[bp] (;W[aq]CR[aq] ;B[ar]CR[ar]) (;W[ds]CR[ds] ;B[aq]CR[aq])) (;W[bp]CR[bp] ;B[aq]CR[aq]) (;W[ao]CR[ao] ;B[an]CR[an] ;W[am]CR[am] ;B[aq]CR[aq]C[ko]))