Rules Trivia
How well do you really know the Laws of the Game?
25 questions on pitch and goal dimensions, match time, substitutions and officiating — including UEFA Champions League-specific rules like semi-automated offside technology and the 5+1 substitution limit. 18 questions come with a side-by-side comparison diagram.
Football's Laws of the Game, Explained
Every Champions League match is governed by IFAB's Laws of the Game — the same rulebook used in professional football worldwide, with a handful of decisions left to each competition organiser, UEFA included.
For example, the Laws of the Game allow pitches within a size range, but UEFA requires an exact 105×68 metre pitch for Champions League matches. The same goes for substitutions: IFAB left the 5-substitute limit up to each organiser, and UEFA adopted it permanently from the 2022/23 season, adding one extra substitute if the match goes to extra time.
Frequently Asked Questions
Where do the Rules Trivia questions come from?
From IFAB's official Laws of the Game and the UEFA Champions League's own regulations, checked for the 2026/27 season — not generic "football in general" trivia.
Are some of these rules specific to the Champions League rather than all of football?
Yes. The exact 105×68m pitch size, the 5-plus-1 substitution limit in extra time, and the 7-player minimum before a match is abandoned are UEFA's own competition decisions, not universal IFAB Laws.
What are the comparison diagrams?
18 of the 25 questions show three options (A, B, C) drawn to scale — for example three different pitch sizes — so you pick which one is the real regulation measurement.
Do I need refereeing knowledge to play?
No. Questions range from basic pitch measurements to more specific officiating rules like semi-automated offside technology, so there is a challenge for every level.