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

Novice players tend to panic and place their defensive buildings directly in front of the incoming threat, often right at the bridge.
Mastering the Middle
The absolute most important placement to memorize is the center pull, designed specifically to deal with massive, building-targeting tanks.

As the tank trudges toward the center, it will be simultaneously shot by your defensive building AND both of your Princess towers.
Do not pre-plant the turret.A mortar cannot hit units directly next to it.Keep them guessing. Countering the Artillery
The rules of placement change entirely when you are facing a 'Siege' deck that uses X-Bows or Mortars planted on their side of the river.

Place a splash-damage building like a Bomb Tower directly in the center to safely absorb and destroy the endless waves of cheap units.
Attacking UnitPlacement AdjustmentFlying Units (e. Here is more info about tower rush look at the internet site. g., 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
Treat the arena as a grid of tactical possibilities rather than just a patch of grass.

Control the geography of the battlefield, dictate the pathing of the enemy, and build an impenetrable wall.