Here is a nice position that Gérard Taille shared recently:
Assuming area scoring and superko, what is the best move for white?
(the image links to a demo board if you want to play out some variations)
Solution
In general, the value of A is greater than the value of B (we could say that A is a 1.5 point move and B is only a 1 point move). But due to superko shenanigans, B is strictly better in this position!
The idea is that if play continues like this, white could create a frozen life at the bottom:
Thus black will be forced to play 4 at G1, conceding the G5 dame to white.
The same sequence does not work if white starts at B5, because then black can play 6 on one of the triangles to unfreeze the game:
