plates are on the table in the form of a square.
An apple is in each
of ten plates.
Find a way of removing all the apples
except one by jumping over one at a time to the next vacant square.
You are not allowed to
make any diagonal moves—only moves parallel to the sides of
You are permitted to transfer any single apple you like to a vacant
plate before starting.
The moves must be all leaps, taking off the
apples leaped over.