(;GM[1]FF[4]SZ[19]
GN[Preventing in one overlapping position]
PC[http://senseis.xmp.net/?TwoSquares]AP[GoWiki:2009]
DT[2018-10-21]
C[Diagram from http://senseis.xmp.net/?TwoSquares

Preventing in one overlapping position]
PL[B]

AB[hh][ih][hi][ji][hj][ij][kj][lj][jk][lk][jl][kl]
CR[jh][jj][ll]
LN[ii:ki][ki:kk][kk:ik][ik:ii]


;CR[jh][jj][ll]
LN[ii:ki][ki:kk][kk:ik][ik:ii]
)
