(;GM[1]FF[4]SZ[19]
GN[Simple angle protection]
PC[https://senseis.xmp.net/?TwoSquares]AP[GoWiki:2009]
DT[2024-01-11]
C[Diagram from https://senseis.xmp.net/?TwoSquares

Simple angle protection]
PL[B]

AB[dd][ed][fd][de][fe][df][ef][ff]
CR[dd][fd][df][ff]
LB[ee:i]


;CR[dd][fd][df][ff]
LB[ee:i]
)
