This is a laidback version of that game we don't speak about because of trademarks.

There is no time pressure, or hopefully any pressure. Tell the game where you'd like to place the piece, and it will try to make it happen.

Control the target placement by moving your mouse, or with W A S D, or with arrow keys. Rotate the target placement with mouse scroll or Q E or [ ]. Place at current piece location with mouse click, Space or Enter.

If you lose the game, it might crash, but hopefully you will not lose. Try to relax.