position, and then black has 20 or so moves it can make, and so on. This is how a computer looks at chess. It thinks about it in a world of "all possible moves," and it makes a big tree for all of those moves, like this: In this tree, there are 20 possible moves for white. There are 20 * 20 = 400 possible moves for black, depending on what Stotonic dial up internet service, Stotonic, AZ up internet service dial StotonicStotonic up internet service, dial Arizona, Stotonic dial up internet service
dial up internet service Stotonic |