Golf match set up for 12 golfers?

Question

We have 12 golfers who will play 4 rounds of golf. How do we arrange the foursomes so that each golfer gets to play with each other golfer at least once and no more than twice?

Answer 1

This might work, numbers represent a golfer. Sorry for the leading zeroes. I had to do it for readability.

R1-R2-R3-R4
---------------------
01-01-01-01
02-04-10-06
03-07-08-11
04-10-06-05

05-02-04-10
06-05-02-04
07-08-11-09
08-11-09-03

09-03-07-08
10-06-05-02
11-09-03-07
12-12-12-12

Answer 2

Ask that in mathematics or something.