The work of a participant with the RWR program was interactive and looked as a semi-binary dialogue. The figures were shown as graphical buttons and the participant was allowed to press any of the figure buttons. As a response to this action, RWR program communicated either "Right choice" or "Wrong choice". The figure "rightness" was defined by an algorithm that was unequivocally programmed in the code. The algorithm was unknown to the participants.

If the participant chose "wrong" figure the RWR program communicated
"Wrong choice" and suggested to choose another figure in the same figure set. If the participant chose "right" figure the RWR program communicated "Right choice" and generated another set of figures that the participant was offered to do a new choice in.

The generation of figures was partly random and deterministic: the RWR
program guaranteed that there was at least one "right" figure in every set. All other figures were chosen randomly. It means that there was a small probability of generating of figure selections with two or three "right" figures.

The goal that was announced to the participants was to click in such a way that the RWR program always responded "Right choice". It was possible in the only case that the participants understood the algorithm according to which the program assigned the "rightness" of figures: every next "right" figure was different from the previous one. The work with the RWR program finished successfully if the program six times in succession communicated "Right choice", which was considered as the sign of solving of the task. If a participant interrupted the work before the solution it was considered as he/she has not solved the task.

The RWR program was uploaded to a server, and the participants worked completely autonomously through Internet. An English version of the RWR
7