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Subject: Second Deep Blue's Blunder

Author: Adnan

Date: 06:10:40 04/05/99


On April 04, 1999 at 15:24:37, Jeremiah Penery wrote:

>I don't understand your statement "Deep Blue's tactical blunder in game 2 that
>would have forced a draw".  Deep Blue thought it was winning...Why would it want force a draw??

I was talking about Deep Blue's inaccurate 44th and 45th moves:

This was the position:

R7/1r3kp1/1qQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/6K1 w - - 0 44

Here Kh1 would have been a simple win, but Deep Blue played Kf1. Here is the
analysis after Kh1:

44.Kh1! Rb8 45.Ra6 Qe3 46.Qxd6 Re8 47.Ra1! Qxe4 48.Ra7+ Kg8 49.Qd7+-

But Deep Blue played 44. Kf1, and after 44...Rb8 it played 45. Ra6?
Instead 45.Qxb6 followed by Ke2 might have been a won ending. But after 45. Ra6?
the game might have drawn after 45... Qe3!






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