Having the strongest defensive building in your deck means absolutely nothing if you do not know exactly where to place it on the map.

This is a catastrophic error that allows the enemy to destroy your building instantly with ranged support units from their side of the river.
The Anti-Tank Center Pull
When the enemy tank crosses the bridge, its AI will calculate that your center turret is closer than your Princess tower, causing it to walk sideways.

Furthermore, any melee support troops following the tank will also be pulled into the center, bunching them up perfectly for your splash-damage spells.
Place the turret as high and far away from your Princess tower as possible.Against fast units like the Hog Rider, you must react instantly.Use cheap cycle buildings like cannons for fast threats. Defending Against Siege and Spawners
Against these threats, you cannot use the center pull; you must place your defensive building directly on the river, right in front of their siege weapon.

Place a splash-damage building like a Bomb Tower directly in the center to safely absorb and destroy the endless waves of cheap units.
Enemy ThreatHow to Alter Your GeometryFlying Units (e.g. Here's more information on tower rush take a look at our web site. , Balloon)Must be placed slightly higher and more central, as flying units ignore the river and take a direct diagonal pathHeavy Spell PushPlace the building extremely high up by the river so the lightning spell cannot physically hit the building and your tower simultaneously Building the Perfect Fortress
When you master turret placement, your opponent will feel as though their units are fighting through thick mud.

Practice your center pulls until you can do them with your eyes closed.