A square with a 5x5 grid on it
represents a tasty cake like that shown in the illustration. To solve
the puzzle simply use the printable version of the cake - from
Your task is to divide this cake into five pieces in such a way that
each piece has the same volume.
All the cuts must be "conventional" - each cut has to go straight
exactly from the central point of the cake to its edges, and every
cut's plane has to be perpendicular to the cake's base. In this case
we'll consider any two pieces as being equal if their top surfaces are
To solve the puzzle you are not allowed to use any measuring tools
except the square grid itself and the central point of the cake (the
center of a 5x5 square).