3770:1-9-55 Ohio Lottery Commission game rule number fifty-five. (A) Title and term. Ohio lottery commission game rule number fifty-five, “KENO,” shall be conducted at such times and for such periods as the commission may determine. For the purpose of this rule, “sales cycle” shall mean any such period beginning on the date when ticket sales are commenced and continuing through the date established by the director as the final sales date.(B) General design. (1) Game rule number fifty-five is a lottery game of the type generally known as a number match game.(2) Each ticket in game rule number fifty-five shall be imprinted with one set of unique numbers from the set of integers one through eighty inclusive, as determined by the choice of the ticket purchaser or the auto pick feature of the on-line gaming computer system, and recorded on the ticket at the time of purchase. Each set of numbers shall consist of at least one unique number and not more than ten unique numbers as chosen by the...