(;GM[1]FF[4]SZ[19]
GN[Standard reduction]
PC[http://senseis.xmp.net/?FourStarPointsBoxFormation]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?FourStarPointsBoxFormation

Standard reduction]
PL[W]

AB[dd][jd][dj][jj]

;W[gj]C[W1]MN[1]

;
)
