(B) (2, 0) => (-1, -3)
Chess on an Infinite Plane (PixelByPixel - vickalan)

I wouldn't mind trying the game with some changes to starting position, and maybe adding rules on how to castle. But I probably can't test or try it for a while - I'll have to finish at least one or two games first before starting anything new.
If you have other ideas, feel free to visit (chess on an infinite plane) - it's a good place to add new ideas about playing strategy and so forth.
22...N(4,7)