Swim through a living dish, absorb smaller cells and escape larger predators.

Brew twenty fantasy recipes by controlling ingredient order, heat and stirring.

Assign ant workers to food, defense and nursing across twenty colony seasons.

Fit gears of three sizes so one motor drives two outputs in the required directions.

Outlast a computer rider on a grid of permanent light trails.

Fill, empty and pour three jugs to measure an exact amount.

Ferry passengers across a river without leaving conflicting pairs alone.

Bring walkers across a narrow bridge before their shared torch runs out.

Plan a chess knight route that visits every open square exactly once.

Arrange queens around blocked squares without shared attack lines.

Write movement commands for a robot to collect stars and reach its exit.

Guide two robots to matching exits with one shared set of directions.