[JRobertson]

Strategy refers to overarching objectives that will direct the larger part of your moves throughout the game.

IE - Knowing your opponent is aggressive with their queen and having plans in place to quickly neutralize her, or being good at manipulating your opponents pieces util it gets to a point where you can gain a strong advantage by castling.

All these objectives form the basis of what you're trying to accomplish with the ideal being that successfully executing your major objectives will gain you victory.

Tactics refers to how well one reacts to and overcomes changes on the board.

IE - Based on the current board layout you notice that a certain move(s) will heavily fortify a section of the board that you previously were not focused on, or seeing your opponent set up for a particular pattern of play you feint a reaction only to hit them somewhere else.

As a tactical player he focuses more on evolving his strategy(larger objectives) to fit the board rather than trying to manipulate the board to fit his strategy more so than the average chess player.