Bob Lewis, from Abbey Wood in London, contributes this week's
poser.
This is a very simple three-deck difference triangle, made up
from the consecutive sequence 1-to-6. Below each pair lies the
value of their difference, for example 5 below 6 and 1, 2 below 5
and 3.
Here is the skeleton of a larger four-deck difference triangle,
made up from the consecutive sequence 1-to-10. Given the position
of the 3 as a clue, the challenge is to fill in the other nine
numbers.
Find the answer online>>
