(;GM[1]FF[4]SZ[19]
GN[Omitting corners in rectangles]
PC[https://senseis.xmp.net/?TwoSquares]AP[GoWiki:2009]
DT[2021-02-23]
C[Diagram from https://senseis.xmp.net/?TwoSquares

Omitting corners in rectangles]
PL[B]

AB[cf][df][ef][cg][eg][ch][dh][eh][di][dj][ck][dk][ek][fk][ik][jk][kk][lk][ok][pk][qk][cl][fl][il][ll][ml][nl][ol][ql][cm][dm][em][fm][im][jm][km][lm][om][pm][qm]
CR[fk][ik][cm][lm]


;CR[fk][ik][cm][lm]
)
