More or less?
Choose by amount despite changing sizes and layouts.
Try this taskCount, learn the rule, compare the actual chance.
A larger-looking group is not always a larger count. More gold tokens do not always offer a better chance. These games ask you to separate quantities from appearance and apply the rule that controls the decision.
Bee tasks focus on counts, examples and a remembered +1 or −1 rule. Kea tasks focus on proportions, accessible tokens and drawing behaviour. Start with one task to understand its rule, then try the full animal challenge to switch between three related decisions.
Choose by amount despite changing sizes and layouts.
Try this taskLearn from examples and apply the rule to zero.
Try this taskRemember the amount. Apply +1 or −1.
Try this taskMore good tokens does not always mean better odds.
Try this taskOnly reachable tokens can be drawn.
Try this taskWatch the selection rule, not just the jar.
Try this taskOpen one task and read its goal and example before starting. Training lets you choose the task profile and tempo.
Each task has five rounds. Training allows one wrong round; one-life challenges require all five to be correct.
Progress and records stay locally in this browser. There is no player account. Clearing this website’s browser data also removes the stored progress.
These are original game tasks, partly inspired by animal cognition research. The research notes link to the original papers and explain how our game ideas relate to them. Read the research notes.