(;GM[1]FF[4]SZ[19]
GN[Main line]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem54/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem54/Solution

Main line]
PL[W]

AB[cl][cn][dn][fo][go][ip][dq][eq][iq][br][cr][fr][gr][ir][hs]
AW[cp][dp][ep][fp][bq][cq][fq][gq][hq][ar][hr]
LB[bo:c][fs:a][is:b]

;W[dr]C[W1]MN[1]
;B[er]C[B2]MN[2]
;W[ds]C[W3]MN[3]
;B[es]C[B4]MN[4]
;W[gs]C[W5]MN[5]

;LB[bo:c][fs:a][is:b]
)
