C3H4E1Q10U1E1R1I1N1G2
25 points
CHEQUERING is validvalid
CHEQUER, to checker [v]
CHEQUER, to divide into or mark with squares, esp. of alternate colours, also CHECKER [v]
CHEQUER, to checker [v]
CHEQUER, to divide into or mark with squares, esp. of alternate colours, also CHECKER [v]