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. 
PIN I
PIN III
PIN V
PIN VII
360 Brilliant Endgames, click on the picture to view the endgames. 
ENDGAME 1
PROBLEM 3
ENDGAME 5
PROBLEM 7
ENDGAME 9
PIN II
PIN IV
PIN VI
PIN VIII
ENDGAME 2
PROBLEM 4
ENDGAME 6
ENDGAME 8
ENDGAME 10