(;GM[1]FF[4]SZ[19]
GN[Mistake 1]
PC[http://senseis.xmp.net/?DiagonalToTheFirstLine]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?DiagonalToTheFirstLine

Mistake 1]
PL[B]

AB[hb][kb][hc][ic][kc][jd][kd]
AW[ja][gb][jb][gc][jc][hd][id][he]

;B[ka]C[B1]MN[1]
;W[ha]C[W2]MN[2]

;
)
