In a way that is carefully planned to gain an advantage.
Tactically means doing something in a smart way to win or be better than others.
Examples:
The team played tactically to win the game.
She tactically placed her pieces on the board.
He thought tactically about how to solve the problem.
The cat tactically waited for the mouse to come out.
Tactically, the general planned the attack to win the battle.
She tactically moved her pieces to win the game.