![Image](https://scontent.fmxl1-1.fna.fbcdn.net/v/t39.30808-6/271734633_4681258971923199_369757453366779881_n.jpg?_nc_cat=104&ccb=1-5&_nc_sid=825194&_nc_ohc=jsLVWP0lptwAX_idGRQ&_nc_ht=scontent.fmxl1-1.fna&oh=00_AT-fv_cXRVVCCr5NJo_fPiZ-FiAQnHPgaAUu8AqVTIl4hQ&oe=61E2816D)
Revealing private knowledge such as the content of your hand in this case, is indeed illegal as it is shown in the official KDE Tournament Policy.
![Image](https://i.imgur.com/ctxIvMD.png)
So, if your opponent ever tries to bluff you by saying "no ht's pop off" or "just attack I don't have mirror force" or something like that, it is indeed a violation to the policy, and you can report them.
Btw, Blue got frozen if someone ever thought he was in the right.
![Image](https://i.gyazo.com/3bd0dde945d998c4358548c3e6a2d069.png)