(;GM[1]FF[4]SZ[19]
GN[Other B2 doesn't work. B8 @ W5]
PC[http://senseis.xmp.net/?GokyoSeimyoVolume3Problem1/Solution]AP[GoWiki:2009]
DT[2009-05-21]
C[Diagram from http://senseis.xmp.net/?GokyoSeimyoVolume3Problem1/Solution

Other B2 doesn't work. B8 @ W5]
PL[W]

AB[ka][la][sa][kb][mb][qb][rb][sb][ic][jc][mc][nc][oc][pc][sc]
AW[jb][lb][kc][lc][qc][rc][md][nd][od][pd][sd][qe][re]

;W[pb]C[W1]MN[1]
;B[ob]C[B2]MN[2]
;W[pa]C[W3]MN[3]
;B[oa]C[B4]MN[4]
;W[ma]C[W5]MN[5]
;B[na]C[B6]MN[6]
;W[ja]C[W7]MN[7]
;W[nb]C[W9]MN[9]

;
)
