Commentary for black move 37:

MAURICE ASHLEY: But you know what I really like about this last move, the fact -- first of all, we know the most drawn types of endings tend -- there's some drawn endings like bishop of opposite colors, but single piece endings of rooks, rooks tend to be very drawish. In fact there's the old saying, "All rook endings are drawn."

GK MOVE: 37...Nxd4.

MAURICE ASHLEY: Kasparov has captured Nxd4, and we're going into a rook ending, but it's not a single rook ending, it's a double rook ending. Deep Blue could somehow battle to exchange a pair of rooks, then you get into a single rook ending and there's a tendency for them to be drawish. And as you pointed out, Yaz, these pawns to the g-file, they might go, and if they go, then it's a bit easier to draw this ending. Another thing, too, we notice, Deep Blue is a great defender. Deep Blue has been in trouble game after game after game, and then you watch it just wiggle its way out and get to a drawn position. It knows well in advance when it's going to lose material and if it's going to lose material. So this will be very frustrating to actually hold this ending for Kasparov, because he had an advantage, it looked like suddenly he had this big advantage, but he got into time pressure h to make some quick moves, and who knows if they're the most accurate moves, but certainly Deep Blue has seemed to put a lot of pressure right at the most critical point. But Kasparov is now at move 38? And has to make that critical move after Deep Blue takes on d4.

YASSER SEIRAWAN: Well, I'm just looking at the position after the forced recapture by Deep Blue, e3xd4.

MAURICE ASHLEY: Kasparov has 4 minutes 50 seconds on his clock. Has to make accurate moves but quickly.

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