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

Difference game]
PL[B]

AB[ar][br][cr][dr][or][pr][qr][rr][as][es][rs]
AW[er][fr][gr][hr][kr][lr][mr][nr][fs][hs][ks]
CR[es][fs]


;CR[es][fs]
)
