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Subject: Re: Nice position on the Chessbase site.

Author: Ernst Walet

Date: 01:24:17 04/16/01

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On April 15, 2001 at 23:35:59, Robert Hyatt wrote:

>On April 15, 2001 at 13:30:06, Ernst Walet wrote:
>
>>In the advertisement for Tiger 14 on the Chessbase site a nice position of a
>>Karpov game is used as example.  I tried five programs on the position.  Fritz6e
>>and Rebel Century 3 could not find the move within half an hour.  Fastes was
>>Gambit Tiger 2, with Chessmaster 8000 (SS=12) close behind.  Computer used is a
>>PIII-500E.  Strangely enough Tiger 14.0 took much more time to find f5 than
>>stated on the web page.  I expected about 42 ((800/500)* 26) seconds.
>>
>>http://www.chessbase.com/magazine/cbm81/tiger1.htm
>>
>>Are there other programs which can find f5 within reasonable time?
>
>
>Is this reasonable?  :)
>
>              time surplus  29.82  time limit 16:39 (16:39)
>         nss  depth   time  score   variation (1)
>                1     0.00   0.98   1. Qg4
>                1->   0.00   0.98   1. Qg4
>                2     0.00     --   1. Qg4
>                2     0.00   0.56   1. Qg4 O-O
>                2->   0.01   0.56   1. Qg4 O-O
>                3     0.01   0.68   1. Qg4 O-O 2. Ng5
>                3->   0.02   0.68   1. Qg4 O-O 2. Ng5
>                4     0.03   0.35   1. Qg4 h5 2. Qg3 Qc7
>                4     0.03   0.40   1. Qh3 h5 2. Ne2 O-O
>                4     0.05   0.48   1. Ng5 h6 2. Qh4 Qc7
>                4     0.08   0.57   1. f5 b4 2. fxe6 fxe6 3. Ne2
>                4->   0.11   0.57   1. f5 b4 2. fxe6 fxe6 3. Ne2
>                5     0.14   0.26   1. f5 b4 2. fxe6 fxe6 3. Ne2 O-O
>                5     0.17   0.55   1. Ng5 O-O 2. Qh4 h5 3. b3
>                5->   0.23   0.55   1. Ng5 O-O 2. Qh4 h5 3. b3
>                6     0.31   0.48   1. Ng5 O-O 2. Qh4 h5 3. Ne2 Bb4
>                6     0.54   0.56   1. f5 b4 2. Ne2 exf5 3. e6 Nf6 4. exf7+
>                                    Kxf7
>                6->   0.65   0.56   1. f5 b4 2. Ne2 exf5 3. e6 Nf6 4. exf7+
>                                    Kxf7
>                7     1.04   0.76   1. f5 exf5 2. e6 Nf6 3. Qg5 Ne4 4.
>                                    exf7+ Kxf7 5. Ne5+ Kg7
>                7->   1.09   0.76   1. f5 exf5 2. e6 Nf6 3. Qg5 Ne4 4.
>                                    exf7+ Kxf7 5. Ne5+ Kg7
>                8     1.58   0.73   1. f5 exf5 2. e6 Nf6 3. exf7+ Kxf7
>                                    4. Ne2 Re8 5. Rc7 Nh5
>                8->   2.08   0.73   1. f5 exf5 2. e6 Nf6 3. exf7+ Kxf7
>                                    4. Ne2 Re8 5. Rc7 Nh5
>                9     5.95   0.80   1. f5 Nc5 2. f6 Bf8 3. Rfd1 b4 4. Ne2
>                                    Qc7 5. Qf4
>                9->   6.13   0.80   1. f5 Nc5 2. f6 Bf8 3. Rfd1 b4 4. Ne2
>                                    Qc7 5. Qf4
>               10    10.88   0.89   1. f5 Nc5 2. f6 Bf8 3. Rfd1 b4 4. Ne2
>                                    Qb5 5. Bxc5 Bxc5+ 6. Ned4
>               10->  12.63   0.89   1. f5 Nc5 2. f6 Bf8 3. Rfd1 b4 4. Ne2
>                                    Qb5 5. Bxc5 Bxc5+ 6. Ned4
>               11    24.76   0.90   1. f5 Nc5 2. f6 Bf8 3. Rfd1 b4 4. Ne2
>                                    Qb5 5. Nf4 Qc6 6. Qg4
>               11->  26.57   0.90   1. f5 Nc5 2. f6 Bf8 3. Rfd1 b4 4. Ne2
>                                    Qb5 5. Nf4 Qc6 6. Qg4
>
>
>etc
>
>:)
>

It suffices :)

Ernst.




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