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

Hard to invade]
PL[B]

AB[ia][ib][ic][id][ie][if][ig][ih][ai][bi][ci][di][ei][fi][gi][hi][ii]
AW[ha][hb][cc][hc][hd][he][hf][hg][ah][bh][ch][dh][eh][fh][gh][hh]


;
)
