Commentary for black move 18:

Mr. ASHLEY: Now, in a situation like this, we can imagine Deep Blue, if it sees nothing to do, tending a resignation. This is not unusual for the programmers to look, see the variations that it's considering, and say, "It looks like it's a loss in all variations, there's really nothing to be done," and just offer their resignation to Kasparov. So don't be surprised in the game ends any second now. We thought it might have taken awhile, but after that liquidation by Kasparov, it just looks over.

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