A score is calculated after each puzzle and a total is calculated at the end of each series.
The score ranges from 0 to 100000 points for each puzzle.
It helps to evaluate your performance more accurately than a simple Elo calculation.
As the resolution time and the number of errors are taken into account, your score allows you to assess your progress, especially when you repeat the same series several times. In this case, when your score improves, you are notified at the end of each puzzle.