Accused me of cheating because I played fast in a bullet game

HOW my move is mistake and how I move c6?

Why is it oversight?

What about it?

I ended up taking rook and Queen

How is Bb4 not a brilliant move but an inaccuracy?

What about it?

A great would also be fine but inaccurate really?

Why is taking the knight with queen the best move?

Mate at the edge of the board i did today.

A Brilliant move?

What about it?

This is my first brilliant move. I’ve played casually for a while but only recently started really getting into chess. I’m confused as to why a long castle would warrant a brilliant?

Why can’t I en passant in this position?

What about it?

Chess.com won’t let me en passant in this position. Am I missing something?

What can black do to defend?

What about it?

As above, I assume there’s a good move here for black but I didn’t see it, I played pawn to e5

[WHITE TO MOVE] Mate in 4

I’m so confused

What about it?

Isn’t rook f8 check in 2 or am I crazy