A combination is merely two tactics being excecuted on consecutive moves. I actually have game i just won to show what i mean. I will show you this game starting at move 19.
The better your opponnent the more complicated your combos need to be. Its all about getting your pieces into positions whehre they can quickly come into play when needed. You als have to be able to see these attacks a few moves in advance.
Does anyone have advice about how to study and practice combinations? Tactics trainer helps one recognize tactics, but it does a poor job teaching how to combine them.