Author: Amir Ban
Date: 14:12:28 05/26/98
Go up one level in this thread
On May 26, 1998 at 07:50:03, blass uri wrote:
>
>On May 26, 1998 at 05:10:13, Amir Ban wrote:
>
>>
>>Fourth round of this tournament produced Junior's first loss. The
>>opponent was IM Alex Krayz (ELO 2395), a familiar player which, however,
>>we have never played before.
>>
>>On other boards Gofshtein beat Manor to score full 4 points, while
>>Smirin lost to Michalevsky in a wild game.
>>
>>Junior played black in a game that started as a Two-Knights Defence and
>>developed into something similar to a closed Ruy Lopez. The key point of
>>the game was black giving up the e5 square and getting a stranded knight
>>on h7. Junior started a queen-side attack, but when it had done its
>>worst, the game was lost anyway.
>>
>>
>>[Event "Dov Porat Memorial"]
>>[Site "Givataim, Israel"]
>>[Date "25-May-98"]
>>[Round "4"]
>>[White "IM Alex Krayz"]
>>[Black "Junior 4.9"]
>>[Result "1-0"]
>>[ECO "?"]
>>
>>1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Bb3 d6 7. c3 h6
>>8. Re1 {Black out of book} Na5 9. Bc2 c5 10. Nbd2 Be6 11. Nf1 Qc7 12.
>>Ng3 Rac8 13. h3 Rfd8 14. Qe2 a6 15. Nh2 c4 {A mistake. Junior
>>miscalculated 16.d4 exd4 17.cxd4 c3 to be good for black, but white can
>>play 18.Bd3 with advantage. b5 is correct}
>
>I gave Junior4.6 to analyze the position for a long time
>at depth 19 it gives the line 15...c4 16.d4 exd4 17.cxd4 Nc6 18.Nf3 d5
>19.e5 Nd7 20.Nf5 Bb4 21.Bd2 Bxd2 22.Nxd2
>as adventage of 0.03 pawns for black.
>
>it does not find 15...b5 at depth 19 so I think the fact that Junior
>miscalculated 16.d4 exd4 cxd4 c3 is not the only problem in this
>position.
>
>can Junior4.9 find 15...b5 if you give it a long time?
>
>Uri
>
It seems right in this position to push the b-pawn and follow up with d5
later. A closer look shows that black has several valid options: b5,
Nc6, Bf8 or even d5.
Junior 4.9 switches at depth 17 to another option: Qd7, which prevents
Nf5 or Ng4. The line is Qd7 Nh5 b6 Nxf6 Bxf6 Qh5 d5 exd5 Qxd5 Ng4 Bxg4
Qxg4 Nc6 +0.05.
Amir
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