(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00] PW[Blanc]PB[Noir]AW[bn][cn][dn][en][ao][eo][ap][ep][aq][bq][eq][gq][ar][cr][fr][fs]AB[bo][co][do][bp][dp][cq][dq][br][er][bs]C[One-move problem. Black to live.] (;B[ds]CR[ds] ;W[dr]CR[dr] (;B[cs]CR[cs] (;W[es]CR[es]C[CHOICE] (;B[dr]CR[dr]C[RIGHT ]) (;B[an]CR[an] ;W[am]CR[am] (;B[dr]CR[dr]C[RIGHT]) (;B[cr]CR[cr] ;W[gm]CR[gm]C[The lower eye is a false one.]) (;B[as]CR[as] ;W[an]CR[an] (;B[dr]CR[dr]C[RIGHT]) (;B[cr]CR[cr] ;W[gm]CR[gm]C[The lower eye is a false one.]))) (;B[cr]CR[cr] ;W[gm]CR[gm]C[The lower eye is a false one.]) (;B[as]CR[as] ;W[an]CR[an] (;B[dr]CR[dr]C[RIGHT]) (;B[cr]CR[cr] ;W[gm]CR[gm]C[The lower eye is a false one.]))) (;W[dr]CR[dr]C[CHOICE This is not White's best move ... but you have to answer wisely !] (;B[es]CR[es]C[RIGHT]) (;B[cr]CR[cr] ;W[es]CR[es]C[The lower eye is a false one.]) (;B[as]CR[as] ;W[an]CR[an] (;B[es]CR[es] ;W[cr]CR[cr]C[ouch !]) (;B[cr]CR[cr] ;W[es]CR[es]C[The lower eye is a false one.])) (;B[an]CR[an] ;W[am]CR[am] (;B[es]CR[es]C[RIGHT]) (;B[as]CR[as] ;W[an]CR[an] (;B[es]CR[es] ;W[cr]CR[cr]C[ouch !]) (;B[cr]CR[cr] ;W[es]CR[es]C[The lower eye is a false one.])) (;B[cr]CR[cr] ;W[es]CR[es]C[The lower eye is a false one.])))) (;B[an]CR[an] ;W[cp]CR[cp]C[ouch !]) (;B[as]CR[as] ;W[cp]CR[cp]C[ouch !]) (;B[es]CR[es] ;W[cp]CR[cp]C[ouch !])) (;B[an]CR[an] ;W[am]CR[am] (;B[ds]CR[ds] ;W[dr]CR[dr] (;B[cs]CR[cs] (;W[es]CR[es]C[CHOICE] (;B[dr]CR[dr]C[RIGHT]) (;B[cr]CR[cr] ;W[gm]CR[gm]C[The lower eye is a false one.]) (;B[as]CR[as] ;W[dr]CR[dr])) (;W[dr]CR[dr]C[CHOICE This is not White's best move ... but you have to answer wisely !] (;B[es]CR[es]C[RIGHT]) (;B[cr]CR[cr] ;W[es]CR[es]C[The lower eye is a false one.]) (;B[as]CR[as] ;W[an]CR[an] (;B[es]CR[es] ;W[cr]CR[cr]C[ouch !]) (;B[cr]CR[cr] ;W[es]CR[es]C[The lower eye is a false one.])))) (;B[es]CR[es] ;W[cp]CR[cp]C[ouch !]) (;B[as]CR[as] ;W[cp]CR[cp]C[ouch !])) (;B[as]CR[as] ;W[cs]CR[cs]C[ouch !]) (;B[cs]CR[cs] ;W[ds]CR[ds] (;B[dr]CR[dr] ;W[es]CR[es]C[The lower eye is a false one.]) (;B[es]CR[es] ;W[dr]CR[dr]C[ouch !])) (;B[es]CR[es] ;W[dr]CR[dr] (;B[as]CR[as] ;W[cp]CR[cp]C[ouch !]) (;B[cs]CR[cs] ;W[cp]CR[cp]C[ouch !]) (;B[ds]CR[ds] ;W[cp]CR[cp]C[ouch !])) (;B[dr]CR[dr] ;W[ds]CR[ds] (;B[es]CR[es] ;W[cp]CR[cp]C[ouch !]) (;B[cs]CR[cs] ;W[es]CR[es]C[The lower eye is a false one.]) (;B[as]CR[as] ;W[cs]CR[cs]C[ouch !]))) (;B[as]CR[as] ;W[cs]CR[cs]C[ouch !]) (;B[cs]CR[cs] ;W[ds]CR[ds] (;B[dr]CR[dr] ;W[es]CR[es]C[The lower eye is a false one.]) (;B[es]CR[es] ;W[dr]CR[dr]C[ouch !]) (;B[an]CR[an] ;W[as]CR[as]C[ouch !])) (;B[dr]CR[dr] ;W[ds]CR[ds] (;B[es]CR[es] ;W[cp]CR[cp]C[ouch !]) (;B[cs]CR[cs] ;W[es]CR[es]C[The lower eye is a false one.]) (;B[an]CR[an] ;W[am]CR[am] (;B[es]CR[es] ;W[cp]CR[cp]C[ouch !]) (;B[cs]CR[cs] ;W[es]CR[es]C[The lower eye is a false one.]) (;B[as]CR[as] ;W[cs]CR[cs]C[ouch !])) (;B[as]CR[as] ;W[cs]CR[cs]C[ouch !])) (;B[es]CR[es] ;W[dr]CR[dr] (;B[an]CR[an] ;W[cp]CR[cp]C[ouch !]) (;B[as]CR[as] ;W[cp]CR[cp]C[ouch !]) (;B[cs]CR[cs] ;W[cp]CR[cp]C[ouch !]) (;B[ds]CR[ds] ;W[cp]CR[cp]C[ouch !])))