The **composite score** is used to determine the
**monthly ranking**.
It is calculated using a formula taking into account three things:

- The average score (the higher the better)
- The average time taken to complete a puzzle (the lower the better)
- The total number of puzzles completed during the month (the higher the better)

For those of you interested, here is the formula we are using:

**CS** = (**AS** + 100 * 10^(-**
AT**/25000)
+ 100 * 10^(-(7***DM**-**NP**)/3000))/3

where:

**CS**is the composite score**AS**is the average score**AT**is the average time in seconds**DM**is the number of days in the month**NP**is the number of puzzles completed during the month