<P> The traditional set of dominoes contains one unique piece for each possible combination of two ends with zero to six spots , and is known as a double - six set because the highest - value piece has six pips on each end ( the `` double six '' ) . The spots from one to six are generally arranged as they are on six - sided dice , but because blank ends having no spots are used , seven faces are possible , allowing 28 unique pieces in a double - six set . </P>
<P> The traditional set of dominoes contains one unique piece for each possible combination of two ends with zero to six spots , and is known as a double - six set because the highest - value piece has six pips on each end ( the `` double six '' ) . The spots from one to six are generally arranged as they are on six - sided dice , but because blank ends having no spots are used , seven faces are possible , allowing 28 unique pieces in a double - six set . </P>
what dominoes are in a double six set
what dominoes are in a double six set
one unique piece for each possible combination of two ends with zero to six spots
one unique piece for each possible combination of two ends with zero to six spots