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

corner]
PL[W]

AB[ba][bb][bc][ad][bd]
AW[ca][cb][cc][cd][ae][be][ce]
CR[ca][ae]

;W[ab]C[W1]MN[1]
;W[ac]C[W3]MN[3]
;B[aa]C[B4]MN[4]

;CR[ca][ae]
)
