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

Diagram 4]
PL[W]

AB[ba][bb][ac][bc][cc][ec][fc][bd][cd][gd][hd][be][ce][fe][he][af][cf][df][gf][hf][eg][fg][dh][fh][gh][bi][di][ei]
AW[ca][da][ab][cb][eb][fb][dc][gc][hc][ic][dd][fd][de][ee][bf][ef][ff][ag][bg][cg][dg][gg][ah][ch][ci]
CR[db]

;W[ae]C[W1]MN[1]
;B[id]C[B2]MN[2]

;CR[db]
)
