Try to cluster/connect the fogtiles. Hopefully this makes your opponent lose sight of where the menhirs are, or how to free them. Which then give you a chance to free the last menhir(s). Make sure you're not the one making that mistake. ;)
Use the roundmarker or scoremarkers if you like. See below.
Use the roundmarker if you like. The game then consists of 12 rounds. Each player having 1 turn per round.
The roundmarker shows you what happens in which round. Round 1 & 2: both players place the remaining fog tiles. Round 3 till 7 both players move the fog according to the rules on the board.
They actually continue doing so until the end of the game. But starting at the end of round 7 with player 2, both players now also remove a fog tile at the end of their turn.
Note: You can never remove a fogtile that uncovers the last Menhir. That would be to easy. ;)
So the game ends: either when someone uncovers the last Menhir, or after 12 rounds when all the fog is gone.
Use the scoremarkers if you like. For instance when playing best of three, or a tournament.
The score of the winner is determined by the number of fogtiles still in the game, when he/she uncovers the last Menhir.
With the same game material the popular Amsterdam version of the game can be played. So, no need to buy any extra components. But be aware: It becomes real mind sport :)
1) Go for the sets, not for luck.
You can of course walk away from the other players in the hope, that you can put a nice point tile, near your wooden figure and far away from the others. For this however, you need luck and you will see that this way of playing (almost) never pays off. It's more interesting to ensure that you get as many complete sets as possible. And therefore you should also visit the points tiles placed by the others players.
2) Build Rifugio's!
If we assume that all players try to get as many sets as possible (see tip 1), then the difference is made by the strategic placing of the huts (Rifugio's). Strategic positioning means that you place the hut in a spot where others will likely come to pass. The real challenge then becomes: placing the tiles in a way, that the others will have to pass your hut!
3) Finds the right balance between placing huts and achieving the sets.
If you are too busy building the huts and therefore forget to get your own sets, then it is possible that the other players use your huts to gain tempo and eventually get more sets than you. And thus win. This you wanna avoid.
4) Avoid tempo loss.
In general you never want to stand still for too long. Or make too big a detour. The higher your walking tempo, the more chance you will have of achieving all the sets.
5) Manipulate your fellow players.
Instead of hoping to draw that one mountain top from the pile (luck), you can also use a forest tile to prevent a mountain top from being placed next to certain rock tiles. In doing so you manipulate your fellow players. Because if they later draw a mountain top, they can only place it next to rock tiles, which are free. Preferably with your puppet nearby ;)