(;GM[1]FF[4]SZ[19]
GN[Invading the ideal extension]
PC[http://senseis.xmp.net/?ExtensionFromAWall]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ExtensionFromAWall

Invading the ideal extension]
PL[W]

AB[fc][jc][fd]
CR[fd]

;W[hc]C[W1]MN[1]
;B[hd]C[B2]MN[2]
;W[id]C[W3]MN[3]
;B[ic]C[B4]MN[4]
;W[gd]C[W5]MN[5]
;B[he]C[B6]MN[6]
;W[gc]C[W7]MN[7]
;B[ge]C[B8]MN[8]

;CR[fd]
)
