(;GM[1]FF[4]SZ[19]
GN[ko]
PC[http://senseis.xmp.net/?FiveHundredAndOneTesujiProblems/Errata]AP[GoWiki:2009]
DT[2010-04-08]
C[Diagram from http://senseis.xmp.net/?FiveHundredAndOneTesujiProblems/Errata

ko]
PL[W]

AB[bb][eb][fb][cc][dc][fc][bd][cd][gd]
AW[cb][db][bc][ec][dd][ed][ce][de]

;W[ab]C[W1]MN[1]
;B[ac]C[B2]MN[2]
;W[ba]C[W3]MN[3]

;
)
