(;GM[1]FF[4]SZ[19]
GN[A significant difference 3]
PC[http://senseis.xmp.net/?SubtlePointAboutApproachMoves]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SubtlePointAboutApproachMoves

A significant difference 3]
PL[B]

AB[da][bb][eb][ac][bc][fc][ad][dd][ed][fd][be][ce][bg][ci]
AW[ba][ca][ab][cb][fb][gb][cc][dc][ec][gc][bd][cd][de][df]

;B[ae]C[B1]MN[1]
;W[fa]C[W2]MN[2]
;B[aa]C[B3]MN[3]

;
)
