The right string
Trace a connection through crossings.
Try this taskSmall mechanisms with consequences to think through.

The bumblebee challenge asks you to trace a connected string, choose and move a ball to a goal within a budget and reproduce a demonstrated action sequence. Every task rewards attention to connections and order.
String crossings can look like shortcuts, but only the continuous line leads to the reward. For the ball puzzle, choose a ball whose route fits the stated move budget. Once chosen, other movable balls disappear; fixed obstacles remain. Demonstration tasks require the observed actions in the correct order.
Trace a connection through crossings.
Try this taskWhich movable ball can get there in time?
Try this taskUnlock, then open. Remember the actions.
Try this taskThree tests with five rounds each. You have one life: every round must be correct. Tests become harder automatically, from Light through Medium to Demanding. Before each test, take your time with the rules and example. Choose relaxed or sport tempo; the clock starts when you start the task.
Open 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.