Tactics is a mean to achieve strategic goal.
Tactical elements are:-
1) PIN
2) FORK
3) SKEWER
4) DISCOVER ATTACK
5) DOUBLE CHECK
6) DOUBLE ATTACK
7) DISCOVER CHECK
8) AMBUSH
9) OVERLOAD
10)DEFLECTION
11)ATTRACTION
12)INTERFERENCE
I will explain these terms one by one if any reader wants to know.
2 replies
A pin is where a piece cannot move because to do so would expose a more valuable piece to immediate attack. This is particularly effective if the more valuable piece in question is the king, as the pin is forced in this case whereas in other cases the pinned player may choose to sacrifice the more valuable piece.
Ragnorak: A pin is where a piece cannot move because to do so would expose a more valuable piece to immediate attack. This is particularly effective if the more valuable piece in question is the king, as the pin is forced in this case whereas in other cases the pinned player may choose to sacrifice the more valuable piece.
or pinned piece cn be unpinned by delivering check 
