Bug in ChessKid Lessons: How to Castle

Hi all,

A bug in ChessKid Lesson hinders my son's progress in advancing the lessons. Black to move, but no matter what I move, the app does not accept it. I moved the Queen in all possible directions, but the app did not accept it. Unfortunately, we are stuck here. I shared this with ChatGPT and it recommended Qe8, however, ChessKid did not accept it. Black is in a difficult position and White is threatening to pressure the pinned knight in f6. I have contacted the ChessKid but haven't heard back.

My questions:

1. what's the best move, if you were playing black?

2. Have you tried the lessons on ChessKid, and if so, are there more bugs like this?

If it's a case of what the best move is, Be6 would be the best option, because the knight on c3 is threatening to double attack the pinned night on f6, doubling the kingside pawns, rendering the castled king very weak. (Follow up with bxe5.)

If it's a soft lock or frozen screen do this:

I encountered this glitch very often, a fix I found was to restart your device, it should work then. The glitch happens when you try to tap and move too fast. Alternatively, just uninstall then reinstall the app.

Hope that helped!