(;GM[1]FF[4]SZ[19]
GN[Prevent the rectangle with three stones]
PC[https://senseis.xmp.net/?TwoSquares]AP[GoWiki:2009]
DT[2021-05-11]
C[Diagram from https://senseis.xmp.net/?TwoSquares

Prevent the rectangle with three stones]
PL[B]

AB[ii][ji][ki][hj][kj][ik][jk][kk]
AW[hi][ij][hk]
CR[ij]


;CR[ij]
)
