I wish I knew how to develop something that would - at a glance - let me know how many games my opponents have played together. This would be handy info for a million reasons that I don't need to explain to a good CCer.
To save space, players in the grid would be identified by their color and ordinal position in the game.
There would be two settings:
- Game Count (or games played together)
- Game % (games that the top row player has played with each other player as a percent of the total number of games he's played since the other player joined CC)
That's it! I've envisioned it in this mock-up...