(;GM[1]FF[4]SZ[19]
GN[White 1 is a ko threat]
PC[http://senseis.xmp.net/?GetStrongAtTenuki]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GetStrongAtTenuki

White 1 is a ko threat]
PL[W]

AB[aa][ca][ga][ha][ia][ab][bb][cb][db][eb][hb][ib][ac][bc][cc][dc][ec][ic][ad][bd][cd][dd][ed][id][ae][be][ce][de][ee][ie][af][bf][cf][df][ef][hf][if][gg][hg][ah][bh][ch][dh][eh][fh][gh]
AW[fb][gb][fc][hc][fd][gd][hd][fe][he][ff][gf][ag][bg][cg][dg][eg][fg]

;W[fa]C[W1]MN[1]

;
)
