(;GM[1]FF[4]SZ[19]
GN[The purpose of W2]
PC[https://senseis.xmp.net/?PlacementPrinciples]AP[GoWiki:2009]
DT[2023-02-27]
C[Diagram from https://senseis.xmp.net/?PlacementPrinciples

The purpose of W2]
PL[B]

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

;B[bb]C[B1]MN[1]
;W[ab]C[W2]MN[2]

;
)
