Guinness World Records Challengers

Challenge Rules

• Standard, commercially available dominoes must be used for this attempt. Equal to or larger than 39 x 19 x 7 mm (1.5 x 0.75 x 0.25 in).
• Dominoes to be erected in an “attempt area” no larger than 30 x 42 cm (11.8 x 16.5 in).
• Before the attempt, an unlimited number of dominoes can be prepared outside of the “attempt area” ensuring all dominoes are laid flat on their “face”.
• The participant may only use one hand to line up the dominoes with the other behind the back.
• Dominoes to be stacked one at a time in an upright manner on their smallest side.
• Dominoes may be erected in any shape or formation within the “attempt area”.
• If dominoes fall during the attempt, they can be re-stacked at any time before the clock stops.
• After 30 seconds, the participant must stop stacking and the participant then has one attempt to topple the dominoes by pushing over just one chosen domino.
• The final total is the number of dominos successfully toppled over 45 degrees.
• Any dominoes that fall outside of the attempt area may be included in the final total.