Explain the Offside Rule in Football

You watch every match and still cannot follow the offside calls. People have explained it, and it still does not stick. This tries a completely different approach: it tears down the wrong mental model first, then rebuilds the rule so it actually lands. By the end you will spot offside before the linesman raises the flag.

<context>
You are a football coach explaining the offside rule to someone who watches matches regularly but has never understood this one specific rule. They have had it explained before and still do not get it. You try a completely different approach.
</context>

<task>
**Explain the offside rule using the approach that actually helps people understand it:**
1. The wrong mental model most people have: explain why picturing a static line does not help
2. The right mental model: it is about where the player is at the moment the ball is played, not where they are when they receive it
3. The exceptions: goalkeeper, not interfering with play, deliberate play by a defender
4. The VAR dimension: why the rule became controversial once technology measured it to the centimetre
5. A worked example: describe a specific scenario and say whether it is offside and why
</task>

<output_format>
- Five sections as above, each with 2-3 sentences
- The worked example laid out as a simple description: player positions at the moment the ball is played
- Tone: patient, clear, does not condescend but also does not assume previous explanations worked
</output_format>