Tactical ability is a prerequisite in all phases of the game. In the opening when development is in its early stages, one slip can be instantly fatal. In the middlegame, there is a myriad of tactical devices available to the well-practiced player in order to carry out the successful prosecution of his or her initiative. In the endgame, tactical solutions require concrete and accurate calculation.
Improve Your Chess DVD Series - Tactics: The Opening, Middlegame & Endgame