- Does where I scratch change the result?
- No. The answer was drawn before you started. Scratch any corner first and you get the same one.
- Do I have to scratch it all?
- No. Scratch about 40% and the rest falls away.
- Is the draw fair?
- Yes. It uses the browser's cryptographic random number generator and removes modulo bias, so every option has exactly the same chance. The Is it fair page shows how.