(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?OD1PAug10Problem/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?OD1PAug10Problem/Solution

Solution]
PL[B]

AB[pq][qq][rq][nr][or][qr]
AW[rn][pp][qp][rp][kq][mq][nq][oq][sq][pr][ps]
LB[mr:b][sr:a]

;B[os]C[B1]MN[1]
;W[rr]C[W2]MN[2]
;B[qs]C[B3]MN[3]

;LB[mr:b][sr:a]
)
