(;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[eb][dc][ec][dd][df]
AW[cb][db][cc][fc][be][fe]

;B[gd]C[B1]MN[1]
;W[fd]C[W2]MN[2]
;B[gb]C[B3]MN[3]

;
)
