(;GM[1]FF[4]SZ[19]
GN[corner]
PC[https://senseis.xmp.net/?TwoSquares]AP[GoWiki:2009]
DT[2022-11-15]
C[Diagram from https://senseis.xmp.net/?TwoSquares

corner]
PL[B]

AB[gi][ii]
AW[hi][gj][ij][gk][hk][ik]
CR[gi][ii]


;CR[gi][ii]
)
