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Subject: Re: deep junior7 loss to goliath 68. ...Rd8-a8 loses blitz game

Author: Amir Ban

Date: 13:38:08 08/26/01

Go up one level in this thread


On August 26, 2001 at 03:58:38, Uri Blass wrote:

>On August 25, 2001 at 22:48:58, K. Burcham wrote:
>
>>
>>
>>
>>
>>i analysed this game, and the score stayed at 0 most of the game, up until
>> 68. ...Ra8
>>
>>
>>this is the position one move previous. 68. Ke5
>>
>>in this position deep junior6 eval is  +.22 at depth 24.
>>
>>
>>  [D] 3r4/4R2P/6p1/3NKbk1/8/8/8/8 b - - 0 1
>>
>>
>>
>>now in the game, deep junior7 chooses 68. ...Rd8-a8.
>>this was a six point blunder for deep junior7, and the game is over
>>      with this move.
>
>I susect that it is an operator error because Junior7 never considered Ra8 as
>best and has no problem to see +3 for white even at small depthes after Ra8
>
>Here is some analysis
>
>Junior 7 - Blass,U
>r7/4R2P/6p1/3NKbk1/8/8/8/8 w - - 0 1
>
>Analysis by Junior 7:
>
>69.Ne3 Bh3 70.Rb7 Re8+ 71.Kd6 Kh6 72.Rb4
>  =  (-0.12)   Depth: 11   00:00:00  100kN
>69.Nf6!
>  =  (0.23)   Depth: 11   00:00:00  277kN
>69.Nf6! Rh8 70.Re8 Rxh7 71.Nxh7+ Kh6 72.Re7 Bd3 73.Kf6
>  +-  (3.15)   Depth: 11   00:00:00  512kN
>69.Nf6! Rh8 70.Re8 Rxh7 71.Nxh7+ Kh6 72.Re7 Bd3 73.Kf6
>  +-  (3.15)   Depth: 11   00:00:00  525kN
>
>(Blass, Tel-aviv 26.08.2001)
>
>Uri

This is blitz remember (7 minutes/game including operator time), and at move 69
the engine already shows about 0 sec left and moves instantly.

The blunder doesn't matter because Junior would have lost on time anyway.

Blitz is great fun, but don't read science into the results. A lot is up to the
operator, and Goliath owes a lot to its maniacal operator Erdogan Gunes.

I'm still trying to figure out how to do time division for these conditions.
With 3-4 sec average operator time, the choice is between allowing the engine
zero thinking time and a sure lose of time at move 80. Goliath, for example, was
setup for 3 min/game.

Amir




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