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Old May 26th 07, 12:19 AM
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Default How to Fool Fritz

ALL:

Despite the formidable calculation capacity of modern computers, I think "humans" will always be able to win from Fritz, Rybka, Junior. What it takes is positional sacrifices with higher risk then taken in tournament games. Amateurs can not "head calculate" like GM's, so use the machine to analyze these sacrifices "on screen". Man-Assisted-Machine-Schach(=Chess) or MAMS. Examples of winning lines in openings used in the KRAMNIK-DEEP FRITZ 2-4 match Bonn 2006 on www.howtofoolfritz.com. What went wrong Vladimir?
Accidentally: "Fritz" was the code-name for German submarines in World War II.

Albert H. Alberts, Amsterdam, The Netherlands.
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Old May 31st 07, 01:23 PM
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Quote:
Originally Posted by albert h.alberts
ALL:

Despite the formidable calculation capacity of modern computers, I think "humans" will always be able to win from Fritz, Rybka, Junior. What it takes is positional sacrifices with higher risk then taken in tournament games. Amateurs can not "head calculate" like GM's, so use the machine to analyze these sacrifices "on screen". Man-Assisted-Machine-Schach(=Chess) or MAMS. Examples of winning lines in openings used in the KRAMNIK-DEEP FRITZ 2-4 match Bonn 2006 on www.howtofoolfritz.com. What went wrong Vladimir?
Accidentally: "Fritz" was the code-name for German submarines in World War II.

Albert H. Alberts, Amsterdam, The Netherlands.
HERE IS AN EXAMPLE. Is the RUY LOPEZ EXCHANGE VARIATION LOST FOR WHITE IN ALL LINES?
1.e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bc6 dc6 5.0-0 (Fischer) Bg4 6. h3 h5 (Barendregt-Portisch IBM 1964) 7.d3 Nh6?!(N) 8.Be3 f5!?(N) (initial risk +2.8 dwindling to +1.6 at ply 16) 9.hg4 hg4 10. Ne5 Qf6 11. f4 gf3*ep 12.Nf3 0-0-0 13.d4 Ng4!? (reraising the risk) 14. Bg5 Qg6 15. Bd8 Kd8 16. Qe1 (game tilts to -1.87 advantage for black) Be7 17.Qg3 Qh6 18.Nh2 Nh2 19.Qh3 Nf1 20.Qh6 Rh6 and black safely enter the endgame at +2 advantage. Never leave g4, always go Qf6/Qg6?Qh6/0-0-0.
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Old June 4th 07, 10:45 AM posted to rec.games.chess.computer
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Default How to Fool Fritz

On May 31, 1:23 pm, albert h.alberts albert.h.alberts.
wrote:
albert h.alberts Wrote:

ALL:


Despite the formidable calculation capacity of modern computers, I
think "humans" will always be able to win from Fritz, Rybka, Junior.
What it takes is positional sacrifices with higher risk then taken in
tournament games. Amateurs can not "head calculate" like GM's, so use
the machine to analyze these sacrifices "on screen".
Man-Assisted-Machine-Schach(=Chess) or MAMS. Examples of winning lines
in openings used in the KRAMNIK-DEEP FRITZ 2-4 match Bonn 2006 on
www.howtofoolfritz.com. What went wrong Vladimir?
Accidentally: "Fritz" was the code-name for German submarines in World
War II.


Albert H. Alberts, Amsterdam, The Netherlands.


HERE IS AN EXAMPLE. Is the RUY LOPEZ EXCHANGE VARIATION LOST FOR WHITE
IN ALL LINES?
1.e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bc6 dc6 5.0-0 (Fischer) Bg4 6. h3 h5
(Barendregt-Portisch IBM 1964) 7.d3 Nh6?!(N) 8.Be3 f5!?(N) (initial
risk +2.8 dwindling to +1.6 at ply 16) 9.hg4 hg4 10. Ne5 Qf6 11. f4
gf3*ep 12.Nf3 0-0-0 13.d4 Ng4!? (reraising the risk) 14. Bg5 Qg6 15.
Bd8 Kd8 16. Qe1 (game tilts to -1.87 advantage for black) Be7 17.Qg3
Qh6 18.Nh2 Nh2 19.Qh3 Nf1 20.Qh6 Rh6 and black safely enter the endgame
at +2 advantage. Never leave g4, always go Qf6/Qg6?Qh6/0-0-0.


However, it seems that white was given several opportuniities in this
game to take the lead.

13. e5 Qe6 14. Bg5 Be7 15. Qd2 etc. looks playable
14. e5 Qg6 14. Re1 Qh5 15. Kf1 etc. is still OK for white
15. exf5 Qh5 14. Bh4 Bd6 etc. is less clear but stll looks survivable.

16. g3 Qh6 17. Nh4 Qe3+ etc. was the last chance to save the game Qe1
loses
but I also think 16. .... Be7 leaves white dead in the water 17. Qd2
isn't good enough.
17. Rf2 will prolong the agony a little longer

So in conclusion I would say that Fritz doesn't always see the right
lines in certain types of position. But that is nothing new. Other
engines like Shredder10 can analyse this game without serious
difficulty.

Regards,
Martin Brown

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