This morning I was listening to some guy's lecture on WWI and WWII and he described why France surrendered early in WWII. Basically he said it was because the French had learned from WWI experience that going to war was highly damaging, expensive, and generally ended without any real benefit, so when WWII rolled around, they opted to just surrended, trying to minimize damage.
That made me think that Conquer Club should have some kind of surrended move (which could be an optional game setting).
So just like Fog or Trench, when you set up a game or search for one, you choose Surrender? Yes or No and check the Yes or No box.
If Surrender is available in a game, then at the beginning of your turn (or end, haven't thought through all the details and ramifications yet), you could make the decisions to Surrender or not.
If you choose to Surrender, all your cards are forfeited, your territories either get randomly redistributed to the opponents or revert to some form of neutral setting, and you lose half the points you otherwise would have if the game had legitimately ended at that same moment.
So say your ranking is 1200, and you're playing someone else whose ranking is 2400 in a 2-player game. Normally if you lose, you would lose 1200/2400 * 20 = 10 points. But if Surrender is an option, and you elect to Surrender, then the game ends and you lose 5 points to them right then and there.
To make the points work in a multi-player game, you apply a similar calc. Say you are playing a 4-player game and your ranking is 1200. Two opponents rankings are 2400, and the third opponent has a ranking of 1200. If at some point you decide to enact the Surrender option, right then and there you lose the average number of points you would have lost if you had individually surrendered to each opponent in a 1 vs 1 game. That means you would lose 1/2 * 1/3 * ( 1200/2400 * 20 + 1200/2400*20 + 1200/1200*20) = 6.67 points, which would ordinarily round to 7 points. But because we have to distribute whole numbers of points to the other 3 players, I'd propose that rather than each opponent getting 7/3 = 2.33 points which rounds down to 2, that when you Surrender, that number is always rounded up, so each opponent gets 3 points, and you lose 9 total.