The Yellow Present
Silouhette of santa's sleigh

Cymraeg

The Yellow Present

It is Christmas Eve and Tomos is really excited.

His family has a tradition of opening one present before going to bed.

There are several presents under the tree, and Tomos knows he's allowed to open the one wrapped in yellow paper tonight.

Unfortunately, there is a power cut just before retrieving the presents from under the tree.

Thankfully they have some battery powered lights on the Christmas Tree.

The problem is that the lights only have three colour settings: red, green and blue.

Six presents shown under red light. The top row of 3 presents under red light show as black, red, and black (left to right). The bottom row of 3 presents show as red, red, and black (left to right)
Six presents shown under green light. The top row of 3 presents under green light show as black, green, and green (left to right). The bottom row of 3 presents show as black, black, and green (left to right)
Six presents shown under blue light. The top row of 3 presents under blue light show as blue, black, and blue (left to right). The bottom row of 3 presents show as black, blue, and black (left to right)

Can you identify the yellow present?

Hint: We have an online workshop called Science of Colour which may be of assistance in this challenge.

Merry Christmas!