(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[7]KM[0.50]TM[] AW[eb][fb][gb][dc][ec][bd][cd][dd][ae][be][de][cf][df]AB[bb][cb][db][ac][bc][fc][gc][ad][ed][fd][ee][ef][ff]C[No komi, no prisoners - black to play and win!] (;B[aa]CR[aa] (;W[eg]CR[eg] ;B[fg]CR[fg] ;W[dg]CR[dg] (;B[ea]CR[ea] ;W[fa]CR[fa] ;B[da]CR[da]C[ Black wins by one point! RIGHT CHOICE]) (;B[da]CR[da] ;W[ea]CR[ea]C[Jigo... Bd7 is wrong])) (;W[da]CR[da] ;B[ca]CR[ca] ;W[ea]CR[ea] (;B[dg]CR[dg] ;W[cg]CR[cg] ;B[eg]CR[eg]C[Black wins by one point! RIGHT CHOICE]) (;B[eg]CR[eg] ;W[dg]CR[dg]C[Jigo... BE1 is wrong]))) (;B[da]CR[da] (;W[ea]CR[ea] (;B[ba]CR[ba] ;W[eg]CR[eg] ;B[fg]CR[fg] ;W[dg]CR[dg]C[This is only a jigo....]) (;B[dg]CR[dg] ;W[cg]CR[cg] ;B[eg]CR[eg] ;W[ba]CR[ba] ;B[aa]CR[aa] ;W[ab]CR[ab]C[Now c7 is not possible (WE7 took away a liberty), so black collapses])) (;W[ba]CR[ba] ;B[aa]CR[aa] ;W[ab]CR[ab] ;B[ca]CR[ca]C[So after D7 black is alive, but there is the problem of WE7 after BD8...!])) (;B[ea]CR[ea] ;W[da]CR[da]C[Black is dead]) (;B[dg]CR[dg] ;W[da]CR[da]C[Black is dead]))