These secondary problems have not yet been solved. Can you be the first?
Some treasure has been hidden in a three-dimensional grid! Can you work out a strategy to find it as efficiently as possible?
In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?
Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?
Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?
Can you rearrange the cards to make a series of correct mathematical statements?
Nicola has lost a piece of her 3D jigsaw. Can you work out the shape of the missing piece?