Board set up

Can you set up a board for practice in Lichess?

I would like to practice getting a mate with a bishop and knight.

I almost had to do that in my last game but my opponent blundered in the end so I didn't have to.

I find it very difficult to get a mate with a knight and bishop how many players can do this?

I know Magnus can.

Here is the game I was talking about that could of ended up with me going for a bishop and knight mate.

I do not think I would of been able to do it in 50 moves so the game would of ended up in a draw.

There's a link to the board editor in the top menu.

It takes you here: https://lichess.org/editor

to add to #3
And then you click "continue from here".

@rmilin
There is the board editor: https://lichess.org/editor

You can edit a position, for example one position with knight and bishop vs king.
If you finished editing, then go on the button „analysis board“, where you can turn on the engine to see whether your moves are correct or not, and how to checkmate the king.

#1 I have a number of such endgames already set up for practice in a study. The Knight and Bishop ones I did start here
Practice: Non Pawn Endgame: Chapter 25 NBKk I

https://lichess.org/practice

Thanks I also like to play against a top level with pieces missing to give me a chance.

I have found for every point you remove from the board your performance rating goes up 100 points.

So if I were able to remove 10 points worth of your pieces at the start of the game my performance level would go from 1700 to 2700.

I still would not be able to beat the top GM's unless I removed 12 points then I would have a chance which shows you just how good they are.