A memory sheet with signs/symbols (e.g. degree signs, circle, square, etc.), pictures (e.g. tree, star, house, etc.) or formulae (e.g. a2+b2=c2, 4+5x3=19, etc.) is located at the turnaround point of the relay. The runners memorise as many fields as possible so that they can enter them on a blank answer sheet at the start. The next runner is therefore well advised not to start immediately, but to communicate with the previous runner to clarify the status of the solution process. The first group to complete all the fields on the answer sheet correctly wins the relay.