Golf group pairings

[hoggercup]

I am looking for the optimum golf parings for 10 players split into 2 groups playing 4 rounds.  The rounds will be played as 2 foursomes and a twosome.  Each group will have 2 players from each team with the exception of the the twosome.  Thanks for your help!

[Ian Wakeling]

I think the schedule below is close to optimal.

(1 2 v  6  9)  (3 4 v 7 10)  (5 v  8)
(1 3 v  9  8)  (4 5 v 6  7)  (2 v 10)
(1 4 v  8 10)  (2 5 v 9  7)  (3 v  6)
(1 5 v 10  6)  (2 3 v 7  8)  (4 v  9)

where players 1 to 5 are group A, and players 6 to 10 are group B.  Players 1 and 7 are the two players who always play in a foursome.  Hope that helps.