6.1. Can a figure with a perimeter of less than 25 cells be formed from four five-cell crosses and four four-cell corners? The figures cannot overlap.
Solution. For example, like this:

![](https://cdn.mathpix.com/cropped/2024_05_06_f043563e6dedbc182611g-1.jpg?height=534&width=542&top_left_y=606&top_left_x=846)

To the solution of problem 6.1

Answer. Yes, it is possible.