Competition settings: each group number is 1- 10.
Five groups compete at the same time.
Round 1 1-6, 2-7, 3-8, 4-9, 5- 10
Round 2-6, 3-7, 4-8, 5-9, 1- 10.
Round 3-6, 4-7, 5-8, 1-9, 2- 10.
Round 4-6, 5-7, 1-8, 2-9, 3- 10.
Round 5-6, 1-7, 2-8, 3-9, 4- 10.
This means that all groups can get together. Select the three highest points. If the points are the same, it is overtime. If three or five points are the same, then draw lots to decide who will play and who will advance!