One of the most important factors is the gem board, which mostly depends on luck I guess. What do you do if your board is stuck, i.e. there are no obvious combinations and you can only match 3 gems in a move? In situations like these, I try to get as much movement (neighbouring gem changes) as possible. I apply the following heuristics:
- Matching on top of the board is better than at the bottom, since the gems below the match move up, thereby creating changes below.
- Matching in the middle of the board is better than on the border, since there are possible combinations on both sides, not just one side.
- Matching vertically is better than horizontally, not sure, just a feeling.
- Under time pressure (titan fights), I use the auto-pilot for 1-2 turns if I can’t see a move right away.
Does this make sense? Do you have other suggestions?