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problem
Matching numbers
Can you find different ways of showing the same number? Try this matching game and see!
problem
Favourite
Totality
This is an adding game for two players. Can you be the first to reach the target?
game
Got it for two
Got It game for an adult and child. How can you play so that you know you will always win?
game
Board block for two
Board Block game for two. Can you stop your partner from being able to make a shape on the board?
game
Dicey operations in line for two
Dicey Operations for an adult and child. Can you get close to 1000 than your partner?
problem
Favourite
Snap
Try this version of Snap with a friend - do you know the order of the days of the week?
problem
Drug testing
How do different drug-testing regimes affect the risks and payoffs for an athlete who chooses to take drugs?