(;GM[1]FF[4]SZ[19]
GN[]
PC[http://senseis.xmp.net/?HermanHiddema/BigSacrificeToGetAWall]AP[GoWiki:2009]
DT[2014-02-07]
C[Diagram from http://senseis.xmp.net/?HermanHiddema/BigSacrificeToGetAWall

]
PL[B]

AB[fb][gb][ec][fc][ic][fd][ge][cf][gf]
AW[db][hb][gc][hc][cd][dd][ed][gd][fe][he]
LB[ff:a]

;B[ib]C[B15]MN[15]
;W[ha]C[W16]MN[16]
;B[id]C[B17]MN[17]
;W[hd]C[W18]MN[18]
;B[if]C[B19]MN[19]
;W[dc]C[W20]MN[20]
;B[hf]C[B21]MN[21]
;W[fa]C[W22]MN[22]

;LB[ff:a]
)
