(;GM[1]FF[4]SZ[19]
GN[Invasion example from a joseki]
PC[http://senseis.xmp.net/?Invasion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?Invasion

Invasion example from a joseki]
PL[W]

AB[cd]
LB[dc:a][ed:b]

;W[ec]C[W1]MN[1]
;B[de]C[B2]MN[2]
;W[ic]C[W3]MN[3]
;B[gc]C[B4]MN[4]

;LB[dc:a][ed:b]
)
