Information on the evaluation system

In puzzle with n movable fields, points are given according to how fast correct associations are found and how many new associations are still possible: The maximum number of points possible is n (n + 1)/2. This is precisely the number of steps after which the puzzle may be resolved in any case.

On the interpretation of the number of points achieved: Draging fields randomly until the correct position has been found, yields - on the average - just half of the maximum number of points possible. A positive result has thus been achieved if the number of points is considerably above half the maximum. In case your result is considerably less than half the maximum, you display a systematic tendency to incorrect answers (maybe on account of some misconception biasing your understanding of the subject in a systematic way).