You are a Queen up - Win with White
In this - Chess Training for Beginners Lesson - you have the white pieces and are a Queen up, so you should be able to win this chess position below easily.
Try it many times until you can beat Black. You are supposed to give checkmate to the black king sooner or later. White moves...
This is a very basic exercise for beginners but it is necessary that you know how to handle it. Just keep playing until you can win this position.
You have to cut off the black king with your queen, then follow up with your king. Your King must work together with your Queen and you have to chase the black King to the edge of the board and then checkmate him.
You can't give a checkmate in the middle of the board.