(;GM[1]FF[4]SZ[19]
GN[Mistake]
PC[http://senseis.xmp.net/?HitachiNumber314/EasySolution]AP[GoWiki:2009]
DT[2014-08-22]
C[Diagram from http://senseis.xmp.net/?HitachiNumber314/EasySolution

Mistake]
PL[B]

AB[ac][bc][cc][cd][fd][be][ce][fe][cf][df][ff]
AW[bb][cb][db][eb][fb][gc][ed][hd][de][he][bf][gf][bg][cg][dg][eg][fg]
LB[ee:a][ef:b]

;B[dd]C[B1]MN[1]
;W[ec]C[W2]MN[2]

;LB[ee:a][ef:b]
)
