There is a high score at the end of games where scoring is higher than already established guidelines.   Nowhere in the documentation of the game is it discussed how scoring points are generated.    I am trying to beat previous scores, but I don't know how matching tiles are scored so I do not have an optimal strategy.

Reproducible: Always

Steps to Reproduce:
1. Make high scores
2. Try to make higher scores
3.

Actual Results:  
Not sure how scoring occurs.    Being placed on the high scores results is unexpected.

Expected Results:  
This is a documentation problem.   The code already scores moves, I just want to know how it is doing that.