(;GM[1]FF[4]SZ[19]
GN[solution?]
PC[http://senseis.xmp.net/?BeginnerExercise283/Attempts]AP[GoWiki:2009]
DT[2009-05-12]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise283/Attempts

solution?]
PL[B]

AB[oa][pa][pb][qc][rc][nd][od][pd][qd][qe][of][qf][qg]
AW[na][ob][mc][nc][oc][pc][sc][md][rd][me][re][rf][ng][rg][ph][qh]
LB[rb:a][sb:b]

;B[ra]C[B1]MN[1]
;W[qb]C[W2]MN[2]
;B[qa]C[B3]MN[3]

;LB[rb:a][sb:b]
)
