Author: Dann Corbit
Date: 15:06:15 02/22/99
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If we define a sacrifice as a loss of material for positional advantage without being able to see a tactical bonus, then it was a sacrifice *for him*. If we can see deeply enough, then all sacrifices become tactical manuvers, unless they are unsound sacrifices. At which time, they become blunders. ;-) Crafty might make what it thinks is a positional sacrifice, but Deep Blue, at the same time control says "Combination" because it see 'x' plies further to the actual solution. It seems (from previous discussion) that a sacrifice is only a sacrifice has "hoped for" benefits rather than directly calculated material benefits. We may further differentiate and say that 'accidental' sacrifices do not count unless your program made the move for positional reasons.
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