(;GM[1]FF[4]SZ[19]
GN[solution; B9 at B1]
PC[http://senseis.xmp.net/?GokyoShumyoSection5Problem25/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection5Problem25/Solution

solution; B9 at B1]
PL[B]

AB[fb][gb][dc][ec][fc][cd][gd][ce][ge][cf][gf][cg][gg][bi][ei]
AW[db][bc][cc][gc][hc][ic][dd][ed][fd][ff][eg][dh][fh][di]

;B[ef]C[B1]MN[1]
;W[df]C[W2]MN[2]
;B[ee]C[B3]MN[3]
;W[de]C[W4]MN[4]
;B[dg]C[B5]MN[5]
;W[fe]C[W6]MN[6]
;B[fg]C[B7]MN[7]
;W[eh]C[W8]MN[8]
;B[ef]C[B9]MN[9]

;
)
