New to Syrtis? Here are a few basic strategy tips to get you started.
1. Sink foreign territory.
Make an effort to sink the tiles that have your opponent's color and your opponent's shape. This especially goes for the early part of the game. Those tiles aren't doing you much good, and getting rid of them will make it more difficult for your opponent's towers to move around.
There's another benefit, too. The more foreign territory you sink, the more of what remains has your color or shape. In other words, the more of what's left could help you make a game-winning island.
So nine times out of ten, sinking foreign territory is a good idea. (On the exceptions, see this post.)
2. Slide toward the center.
If you don't have useful tiles near the center of the board, it will be difficult to make a complete island. So slide useful tiles (especially ones with your color and shape) toward the center, and keep one of your towers nearby to protect them.
3. Sink some tiles to secure others.
Take advantage of the requirement that the whole board to remain connected. In the middle phase of the game, many of the remaining tiles will form a core that is hard to sink without breaking up the board. Try to make useful tiles part of that core.
4. Be ready to sink.
True, you may need to slide tiles around as you approach the endgame. But remember to keep one of your towers ready to sink a tile, especially when your opponent has sunk the last two or more tiles. If you're caught off guard, you'll lose by quicksand.