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Transcript
[-∞,∞]
[-∞, 8]
9 is bigger than alpha=–inf, so alpha is
assigned 9.
Now alpha=9 is bigger than beta=8!
[8,∞]
[9, 8]
8
3
Interpretation: One of the players will
ensure that this position never occurs.
9
In this case, it is MIN, since MIN can
achieve 8 by choosing a different
move, and this move results in MAX
being able to force at least 9.