(;GM[1]FF[4]SZ[19]
GN[Eye-making]
PC[https://senseis.xmp.net/?PlacementPrinciples]AP[GoWiki:2009]
DT[2023-02-27]
C[Diagram from https://senseis.xmp.net/?PlacementPrinciples

Eye-making]
PL[B]

AB[eb][ec][ed][be][ce][de][ee]
AW[db][dc][bd][cd][dd]
SQ[aa]

;B[bb]C[B1]MN[1]
;B[ab]C[B3]MN[3]

;SQ[aa]
)
