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

Exchange]
PL[W]

AB[dc][bd][dd][ce][de][bf][di]
AW[cc][cd][be][cf][df][bg]
LB[fb:a]

;W[af]C[W1]MN[1]
;B[bc]C[B2]MN[2]
;W[ff]C[W3]MN[3]

;LB[fb:a]
)
