Wonderful idea! As far as the timing, either the 3 days per move or the
total day limit idea would work, I think. Total days used could be tracked
manually with each PBEM exchange. As far as a list of games, here's some
ideas:
- Chaturanga (worthy grandad of Chess)
- Jumping Chess (interesting capturing mechanic)
- Glinski's Hexagonal Chess (hex mechanics)
- Makruk (wonderful old and contemporary variant)
- Take Over Chess (I'm partial to it!)
- Chess on a Longer Board (its that Wall)
- Xiangqi (another worthy variant)
- Mulligan Stew Chess (crazy but fun)