(;GM[1]FF[4]SZ[19]
GN[Variation]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem37/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem37/Solution

Variation]
PL[W]

AB[jb][ob][pb][ic][jc][nc][qc][pd][ie][je][pe][kf][mf][of]
AW[nb][kc][oc][pc][ld][md][nd][od]
CR[nc]
LB[qd:a]

;W[oa]C[W1]MN[1]
;B[pa]C[B2]MN[2]
;W[qb]C[W3]MN[3]
;B[na]C[B4]MN[4]
;W[mb]C[W5]MN[5]
;B[rb]C[B6]MN[6]
;W[kb]C[W7]MN[7]

;CR[nc]
LB[qd:a]
)
