In Burma they supposedly played a form of dice chess with 3 dice ... and players moved 3 times in a row ... I wonder if it would be possible to implement easier version with 2 dice and move twice in a row ... I would suggest for doubled numbers (1-1,2-2, 3-3 etc) to introduce free one move with any chosen piece ... ususally when we think about thwo dice version we think of choosing the number to move ... Burmese chess (modified by reducing number of dice) would be very intriguing and challenging variant. Here is the link and please scroll to the last sentence (History) where they talk about this variant.

http://en.wikipedia.org/wiki/Dice_chess