(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?OD1PAug2Problem/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?OD1PAug2Problem/Solution

Solution]
PL[B]

AB[bm][cn][dn][fn][gn][go][bp][cp][gp][gq][fr][gr]
AW[do][fo][dp][fp][cq][dq][fq][er]

;B[ds]C[B1]MN[1]
;W[es]C[W2]MN[2]
;B[br]C[B3]MN[3]

;
)
