

![0_image_0.png](0_image_0.png)

Fig. 7. Phase portraits of the work with the RWR program for solvers.

Because of the large number of clicks, the data for the participant "K" were smoothed by a sliding mean with the window width of 5. The time flow is marked by arrows. For the participants "K" and "B", the beginning phase is shown as the solid line and the closing phase is shown as the dashed line.

The phase portraits for non-solvers are shown in Fig. 8. As it is seen from the data, the trajectories of non-solvers are also of the sort of spiral cycles. However while working with the RWR program the participants "Ch" and "G" either did not move to the solution or moved too slow. The estimations of mean increments of error numbers give an idea of difference between solvers and nonsolvers. The mean increments for the participants "K", "M", and "B" amount -0.27, -0.56, and -0.69 correspondingly, i.e. they are negative, which means that 14