I've been thinking about tactics recently (as can be seen from my posts). Going through lots of puzzles, it seems to be all tactics are based on double attacks. I've read this somewhere before. The tactics are straight line shots: x ray, discovered, etc, except for knights. In their twisted logical world L-shaped is a straight line. Now lots of books and software have tactical exercises, but the flaw is that these tactics are presented to you, as in the "find Waldo" children's pictures or the animals in the tree branches that used to illustrate books. As we all know, most of the time, tactical shots don't exist. Which comes to my point: How does one create the tactics? In beginners terms we used to line up the queen and bishop of opponents f7 and he would blithely let us checkmate him. Now we have to be more subtle. Some great players, Tal, Fischer, Morphy have countless tactics in their games which win for them, even against upper level players. What do they do to create which others don't? Rapid development? Open lines? Exchange pawns, not pieces? Unbalance the position? Any other ideas out there?? The one ability all good tactical players have is the ability to recognize a tactic efficiently. Time and time again, you'll read where Tal or Fischer played a move instantly and his opponent almost falls over. Surely, these players must spot the situation a long time before it actually happens or, even better, create the situation. Any thoughts?