(;GM[1]FF[4]SZ[19]
GN[Line 1 (9 at marked stone)]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem23/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem23/Solution

Line 1 (9 at marked stone)]
PL[W]

AB[jb][qb][kc][lc][oc][pc][jd][pd][me][oe][pe]
AW[kb][lb][ob][pb][mc][nc][od]
CR[qb]
LB[la:a][ma:b][pa:c][ra:d]

;W[rb]C[W1]MN[1]
;B[nb]C[B2]MN[2]
;W[qc]C[W3]MN[3]
;B[qd]C[B4]MN[4]
;W[qa]C[W5]MN[5]
;B[ka]C[B6]MN[6]
;W[mb]C[W7]MN[7]
;B[na]C[B8]MN[8]

;CR[qb]
LB[la:a][ma:b][pa:c][ra:d]
)
