WOD The CrossFit Games Open Workout 14.2

The CrossFit Games Open Workout 14.2
For as long as possible:
From 0:00-3:00
2 rounds of:
10 Overhead Squats 43/30kg
10 Chest 2 Bar Pull Ups
From 3:00-6:00
2 rounds of:
12 Overhead Squats 43/30kg
12 Chest 2 Bar Pull Ups
From 6:00-9:00
2 rounds of:
14 Overhead Squats 43/30kg
14 Chest 2 Bar Pull Ups
Etc., following same pattern