(;GM[1]FF[4]SZ[19]
GN[4-4 point, double low approach, attach-extend, 3-3 invasion]
PC[http://senseis.xmp.net/?44DoubleLowApproachAttachExtend33Invasion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?44DoubleLowApproachAttachExtend33Invasion

4-4 point, double low approach, attach-extend, 3-3 invasion]
PL[B]

AB[dd]
AW[fc][cf]
LB[dc:c][ec:a][cd:b]

;B[fd]C[B1]MN[1]
;W[gd]C[W2]MN[2]
;B[fe]C[B3]MN[3]
;W[cc]C[W4]MN[4]

;LB[dc:c][ec:a][cd:b]
)
