Solve the classic Tower of Hanoi puzzle! Move the stack of disks from one peg to another, following the rules: only one disk at a time, and never place a larger disk on a smaller one. Plan your moves carefully to solve it in the minimum number of steps. This classic problem-solving task trains planning, foresight, and logical reasoning.

Adapt and switch! You'll alternate between different tasks or rules — respond according to the current rule, then quickly adapt when it changes. This cognitive flexibility task challenges your brain's ability to switch between mental sets. Essential for improving adaptability and reducing cognitive rigidity.