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Subject: Re: Strange Fritz 9 Move

Author: Uri Blass

Date: 03:35:00 11/04/05

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On November 03, 2005 at 14:45:53, m.d.hurd wrote:

>The Following position was reached with Fritz as black.
>
>[D]8/1kb5/p2q4/P4Q2/1NP4p/1K1P2p1/1P6/8 b - - 0 63
>
>
>Fritz played Bxa5 and went on to lose.
>
>Regards
>
>Mike

I think that 1...Ba5 is a typical human mistake.

A human may calculate the line with 5...Qe1 or 4...Qh2 and think that black is
winning because the pawn g2 cannot be stopped.

many chess programs simply do not evaluate pawns that cannot be stopped so by
counting material they assume that white is better and do not plsy 1...Bxa5.



[Event "120'/40+120'/40+120'/40"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/1kb5/p2q4/P4Q2/1NP4p/1K1P2p1/1P6/8 b - - 0 1"]
[PlyCount "12"]
[TimeControl "40/7200:40/7200:40/7200"]

1... Bxa5 2. Qxa5 g2 3. Qg5 h3 4. c5 Qe6+ (4... Qh2 5. c6+ Kb6 6. Ka4 g1=Q 7.
Qa5+ Ka7 8. Qxa6+ Kb8 9. Qb7#) 5. Ka4 Qc8 (5... Qe1 6. c6+ Kc7 7. Qg7+ Kd6 8.
Qd7+ Kc5 9. Nxa6+ Kb6 10. Qb7#) 6. c6+ Ka8 7. Qg6 1-0


Uri



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