25 golfers playing 6 rounds of golf in fivesomes

[par5n2]

Planning a trip of 25 golfers playing 6 rounds of golf.  We are playing in fivesomes.  Any help determining pairings where everyone plays with each other at least once.

Thanks,
PAR5N2

[Ian Wakeling]

Hi,

This is a well known combinatorial construction where every player plays all the others exactly once, there is an example here.

Ian.