(;GM[1]FF[4]SZ[19]
GN[''a'' or ''b'' kills, ''c'' allows black to make ko.]
PC[http://senseis.xmp.net/?TsumegoFromGames81/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TsumegoFromGames81/Attempts

''a'' or ''b'' kills, ''c'' allows black to make ko.]
PL[W]

AB[db][eb][gb][ec][fc][kc][bd][dd][ed][ce][bf][df][ef][cg]
AW[cb][hb][cc][dc][gc][cd][fd][gd][de][ee][fe][le]
LB[ca:a][da:b][fa:c]


;LB[ca:a][da:b][fa:c]
)
