I know this would probable not be easy to program, but I think would be great if it is possible.

I would love to play different combinations of chess - for example, Crazy Screen Chess board setup, played as Dark & Knight Relay. Or Capablanca Random Dice Chess (with of course a few extra numbers on the dice to cover the extra pieces)

Currently there are basically 2 types of Chess games - one with special setup, one with special rules.

So for Mix-n-Match.

First have player pick board type. So choose 1:
Regular Chess, Corner, Fortress, Janus, Embassy, Capablanca Random, Screen, Crazy Screen, Amazon, Fischer Random, Legan, or Grand. (I left out Horde, Maharajah, & Los Alamos - but those might work also)

Second have player pick Game Rules: So choose 1:
Loop, Anti, Extinction, 3 Checks, Dark, Atomic, Cylinder, Berolina, Knight Relay, Ambiguous, Dark, Recycle, or Ice Age

Third - I think there are a few of those rules which would work good doubled up - while others not so much - so third, possible pick a second rule: So choose 1 (in addition to the one before):
Dark, Cylinder, Knight Relay, Recycle, Ice Age, or NONE (just stick with 2nd choice)

Again, probable too much to program - but I think it would solve the issue of not making a many many many new games of variants of variants - but a fun way to come up with interesting combinations for people to play.

**edited because I forgot about Recycle Chess**