Now when they see a certain arrangement of pieces, they don’t have to carefully figure out which piece is attacking or could attack every other piece; instead they recognize a pattern and know almost reflexively what the most powerful moves and countermoves would likely be. No longer do they have to apply their short-term memory and analytical skills to imagine what would happen if they made this move and their opponent made that move and so on, trying to recall the position of every piece on the board. Instead, they have a good general idea of what is going on in a given position—in terms of
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