Herlock Sholmes:one more thing about Doubled Dice Chess for board 10x10 ... we increased the size of the board, trippled the number of Kings but the same, "middle age" weapon of capturing remained  ...
so, I Ithink, introducing doubled dice will balance somewhat the increased size and the number of kings with the chances of capturing them ... there are situations on 10x10 board that some kind of accelerator would be helpful ... please think about it ... and, of course, there is always more excitements when doubling of any kind is utilized ...
Andy.