(;GM[1]FF[4]SZ[19]
GN[solution]
PC[http://senseis.xmp.net/?GokyoShumyoSection2Problem28/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection2Problem28/Solution

solution]
PL[W]

AB[db][ec][cd][dd][ed][fd]
AW[eb][fb][fc][hc][gd][ce][fe][cf][ef][ch]

;W[bb]C[W1]MN[1]
;B[bd]C[B2]MN[2]
;W[da]C[W3]MN[3]
;B[ca]C[B4]MN[4]
;W[cb]C[W5]MN[5]
;B[ea]C[B6]MN[6]
;W[ba]C[W7]MN[7]
;B[dc]C[B8]MN[8]
;W[be]C[W9]MN[9]

;
)
