(;GM[1]FF[4]SZ[19]
GN[Exchange]
PC[http://senseis.xmp.net/?posting=4698]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?posting=4698

Exchange]
PL[W]

AB[eb][fb][dc][gc][cd][be][de]
AW[cb][db][ec][bd][ed][ce]

;W[cf]C[W1]MN[1]
;B[dd]C[B2]MN[2]
;W[bc]C[W3]MN[3]
;B[ee]C[B4]MN[4]

;
)
