Whistle

Each play shows a quick diagram and a situation across one of six sports. Choose the correct ruling, offside, a travel, a strike, and so on, then, where it applies, pick the smartest next play. A round runs through several plays for a combined accuracy and timing score.

• Read the diagram and situation, then pick the correct call
• Some plays add a follow-up strategy question
• Each correct call and smart tactic adds to your score
• Daily is a shared rotation; Practice randomises the plays

• Desktop: click an option or press number keys 1-4
• Phone & tablet: tap an option

• Each sport has its own rulebook, switch your thinking as the sport rotates
• Read the rationale after every call to sharpen the next one
• Faster correct answers help your time bonus, so don't overthink the easy calls

Whistle is a multi-sport officiating quiz about the rules and on-field decisions.

• Skills: sports rules, officiating, decision-making
• Best for: roughly grades 5–12 (ages 10+)
• For parents & teachers: the rules behind the calls.

Ruling on a situation across six sports — offside, a travel, a strike — is officiating, and the referee's job is judgement under the same time pressure the players face.

Spanning six sports is the original breadth.

Comparing codes reveals what rules are for. Offside exists to stop goal-hanging, the travel rule to keep basketball a dribbling game — each is a patch on a specific degeneracy, which is much clearer across sports than within one.

Whistle is a multi-sport officiating quiz about rules and on-field decisions. It's an original, free browser game built for PlayPendium.

A free, original browser game on PlayPendium. No download, no install.