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Subject: Re: Missed Opportunities in comp vs comp at 40/2

Author: Amir Ban

Date: 07:33:07 09/01/98

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On September 01, 1998 at 10:10:15, blass uri wrote:

>
>On September 01, 1998 at 08:42:30, Amir Ban wrote:
>
>>On September 01, 1998 at 07:17:44, Howard Exner wrote:
>>
>>
>>>5. Rebel missed a chance to immediately transpose to a won ending with
>>>the moves 1. Qxe6+ Qxe6 2. Rxe6 Kxe6. Black's passed d pawn can be
>>>easily stopped while white's pawns are unstoppable. Instead Rebel played
>>>the liguidating sequence 1. Qb7+ Kd4 2. Qb6+ Kd3 3. Qxe3+ Rxe3 4. Rxe3 Kxe3.
>>>Note the better location now of black's king. Black should be able to draw this
>>>now by advancing his d pawn.
>>>4R3/5Q2/3pr3/p2k1p2/5P2/1P2q1PP/P6K/8 w - - id "Rebel 9.0 - Hiarcs 6.0"; am
>>>Qb7+;
>>>
>>
>>This is wrong. Qb7+ is the right move, and it wins a rook:
>>
>>1.Qb7+ Kd4 2.Qb6+ Kd3 3.Qb5+ Kc2 4.Qc4+ or 3...Kd2 Qd5+.
>>
>>How did Rebel manage to miss this ?
>
>I think that Rebel did not miss it because Rebel's line is also winning.
>and Rebel prefered to win in a pawn endgame
>

???

This pawn endgame is not won. Both sides queen, and what happens then is not
clear. To prefer an unclear queen endgame over a simple win of a rook sounds a
bit over-sophisticated to me.

Besides, I guess Rebel didn't win this, otherwise why would Howard mention this
position ?

Amir







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