Chess Combinations 

Removing the guard or defender. This theme is the very essence of chess logic. If Piece A guards. Piece B. Attack the Piece A and you win one or the other. 

PINNING, The pin is by far one of the most used tactical theme. Click on each board to see the answers. 
360 Brilliant Endgames, click on the picture to view the endgames. 
ENDGAME 1
ENDGAME 5
PROBLEM 7
ENDGAME 9
ENDGAME 2
PROBLEM 4
ENDGAME 6
ENDGAME 10