Greg Strong wrote on Fri, Sep 14, 2018 09:33 PM UTC:
There was an error with the Average Mobility numbers - I have now updated the table.
The Average Mobility is a Betza Mobility Calculation with a board occupancy of 30%. Basically, for a piece that can only make a single step, the number of directions attacked and average mobility will be the same (as though the board was empty.) For each additional step in a given direction, though, the weight is that of the previous step multiplied by 0.7 (to approximate a 30% chance that the previous square was occupied.)
There was an error with the Average Mobility numbers - I have now updated the table.
The Average Mobility is a Betza Mobility Calculation with a board occupancy of 30%. Basically, for a piece that can only make a single step, the number of directions attacked and average mobility will be the same (as though the board was empty.) For each additional step in a given direction, though, the weight is that of the previous step multiplied by 0.7 (to approximate a 30% chance that the previous square was occupied.)