You get Points for each BBC game you play, according to the following table:

Place

Points if game is

Step 1

Step 2

Step 3

Step 4

1

10

20

30

40

2

9

18

27

36

3

8

16

24

32

4

7

14

21

28

5

6

12

18

24

6

5

10

15

20

7

4

8

12

16

8

3

6

9

12

9

2

4

6

8

10

1

2

3

4

Calculation of Score

If P is the Number of Points you got and G is the Number of Games you played,
the score is calculated with the following formula:

So its "Points per Game" multiplied with a coefficient.
This coefficient is 1 in the first game, and increases by 1 if you play twice as much games
(for instance it is 2 after 2 games, 3 after 4 games, 4 after 8 games, 5 after 16 games etc.).
Why did we choose this formula?
Because it gives Players who play more often a little bonus,
but high scores requires good results too (because of "Points per Game").

For People who understand PHP, here is the formula copied from the source code:

function calcscore($points, $games)//$games is number of played games
{
if($games<=0 or $points<=0) return 0;
$coefficient = 1 + log((float)$games, 2);//logarithm with base 2
$score =(float)$points* $coefficient /(float)$games;
return (int)($score*1000);
//score will be divided by 1000 in ranking
}

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