GIPF Project: Expansion Set 2
GIPF Set 2 contains 12 ZÈRTZ-potentials 12 DVONN-potentials and 12 extra ZÈRTZ rings. You can use the ZÈRTZ rings to play ZÈRTZ on a larger board -- that's clear. But to make use of the potentials you need GIPF in the first place. Potentials are additional pieces that you can add to GIPF (i.e. to add extra twists to the game) -- and ZÈRTZ and DVONN are not needed at that stage yet. You only need them if you want to go one step further: you can use the potentials as a means to link ZÈRTZ and/or DVONN with GIPF.