(;GM[1]FF[4]SZ[19]
GN[W2 is wrong - even simpler]
PC[http://senseis.xmp.net/?HermanHiddema/DifficultProblemAttempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?HermanHiddema/DifficultProblemAttempts

W2 is wrong - even simpler]
PL[B]

AB[bb][ib][kb][bc][ic][bd][dd][id][be][de][ee][he][gf][if]
AW[hb][cc][dc][ec][hc][ed][fd][gd][hd]

;B[ea]C[B1]MN[1]
;W[eb]C[W2]MN[2]
;B[da]C[B3]MN[3]
;W[fa]C[W4]MN[4]
;B[ha]C[B5]MN[5]

;
)
