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

Good exchange]
PL[B]

AB[cb][cc][cd][dd][ed][be][fe]
AW[db][dc][fc][fd][ce][ee][bf][cf][ef]

;B[da]C[B1]MN[1]
;W[gb]C[W2]MN[2]
;B[ad]C[B3]MN[3]

;
)
