(;GM[1]FF[4]SZ[9]
GN[Diagram 1]
PC[http://senseis.xmp.net/?AlexanderYoshiGoProblem1/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?AlexanderYoshiGoProblem1/Solution

Diagram 1]
PL[W]

AB[ba][bb][cc][ec][fc][cd][be][ce][cf][df][gf][hf][eg][fg][dh][fh][gh][bi][ei]
AW[da][cb][eb][dc][dd][fd][de][ee][ge][bf][ef][ff][bg][cg][dg][gg][ah][ch]
SQ[gc]
LB[ca:b][bd:a]

;W[ad]C[W1]MN[1]
;B[ac]C[B2]MN[2]
;W[ae]C[W3]MN[3]
;B[af]C[B4]MN[4]
;W[ag]C[W5]MN[5]
;B[bc]C[B6]MN[6]
;W[ci]C[W7]MN[7]
;B[hd]C[B8]MN[8]
;W[hc]C[W9]MN[9]
;B[he]C[B10]MN[10]

;SQ[gc]
LB[ca:b][bd:a]
)
