(;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]

;B[ec]C[B1]MN[1]
;W[dc]C[W2]MN[2]
;B[dd]C[B3]MN[3]
;W[fc]C[W4]MN[4]
;B[ee]C[B5]MN[5]
;W[ef]C[W6]MN[6]

;
)
