Slitherine

for +2 mod it says bases in contact must gave 3 corners uphill
for +1 mod if just says bases. so any base ? back rank? not in contact (large v small etc)

have I got it right?

The +1 is for being partially uphill. So only some bases are on the hill, or rear bases are and front bases are not. It's a judgment call you should agree on before your opponent charges in and finds himself down hill.

The way I look at it is that if you have 3 or 4 corners higher than opponent you get +2 dice and if you have 1 or 2 corners higher you get +1 die.

p. 108

Fully Uphill = all bases in contact are uphill (at least 3 of 4 corners on hill and front edge is in front of ridge)

So, if enemy is in contact with only one base (angled in perhaps?) then that base can give you full uphill. If enemy is in contact with both (or all 3 front bases) then each in contact must count as uphill (3 corners at least...etc.).

If one but not all bases in contact are uphill, and enemy not, then +1.