(;GM[1]FF[4]SZ[19]
GN[First, the obvious answer]
PC[http://senseis.xmp.net/?TwoSpaceExtensionUnobviousAnswers]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TwoSpaceExtensionUnobviousAnswers

First, the obvious answer]
PL[W]

AB[hc][kc]
LB[jb:b][jc:a][hd:c][ke:d]

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

;LB[jb:b][jc:a][hd:c][ke:d]
)
