(;GM[1]FF[4]SZ[5]
GN[Illegal move]
PC[http://senseis.xmp.net/?RulesOfGoIntroductory]AP[GoWiki:2009]
DT[2017-10-22]
C[Diagram from http://senseis.xmp.net/?RulesOfGoIntroductory

Illegal move]
PL[W]

AB[cb][bc][cd]
AW[db][ec][dd]

;B[dc]C[B2]MN[2]

;
)
