Dear Ian

After a carefull analysis of the proposed grid we found out that I may have not specified clearly our needs

Please let me specify our needs so that you may be able to help us find a more appropriate solution.

I)We are looking for a grid of 12 players ,playing 7 days.

Each day there are 3 lines of 4 players each

The format is such that each day the players play simultaneously 3 formats, as follow

a) Each player plays a medal play (individual score)

b) fourball : which means that each day, each player plays in a twosome with a different partner ( thus,any player plays in 7 days in twosomes with other 6 players) choosing the best score of the two balls, hole by hole and adding up the scores for the 18 holes. Each team of two players play against the other 5 teams.

The lower score give points to each player of the winning team

c) Each line formed by four players play as a team, choosing in each hole the best score adding up the scores of the 18 holes.The lower score give points to each player of the winning team.

At the end of each day, then each player get a number of points as a result of his own individual game (medal), plus the points he may have earned as part of a twosome plus the points he may have earned as part of a line of four.

With this format in mind what we need is to have each player play with a different partner each day in a twosome without repetition and to play with all the players in lines of four with the minimum possible repetitions.

II) 12 players , 12 days

The same concept we would need for 12 players and 12 days ( in this case a particular player will play with the other 11 partners in a team of two at least once with some repetitions on the 12th day ,but we would need to minimize the repetitions with the other players when forming the groups of four players

Hope that is not to much and you can help us

thank you very much