problem
Favourite
Reflector ! rotcelfer
Can you place the blocks so that you see the reflection in the picture?
Can you place the blocks so that you see the reflection in the picture?
How will you decide which way of flipping over and/or turning the grid will give you the highest total?
In how many ways can you fit all three pieces together to make shapes with line symmetry?
Where can you put the mirror across the square so that you can still "see" the whole square? How many different positions are possible?