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Subject: Re: Nice position on the Chessbase site.

Author: Robert Hyatt

Date: 20:35:59 04/15/01

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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

:)

>
>[D]r1b1k2r/1q1nbp1p/p3p1p1/1p1pP3/3B1P2/2NP1NQ1/PP4PP/2R2RK1 w kq -
>
>Chess Tiger 14.0, 96MB hash
>
>00:00:00.8	0,56	6	45082	Ng5 Qb8 Qh4 h6 Rfe1 Bb7
>00:00:01.3	0,36	7	220828	Ng5 Nb8 Ne2 h6 Qh4 Nc6 Rfd1 Nxd4 Nxd4
>00:00:02.8	0,44	7	336656	Rf2 b4 Nd1 Qb5 Ng5 Bb7 Rc7
>00:00:03.1	0,52	7	469983	Ne2 b4 Ng5 Qb5
>00:00:04.4	0,54	8	593209	Ne2 b4 Ng5 Qb5 Rc7 Bd8 Rc2 Bxg5 fxg5
>00:00:09.6	0,46	9	1096637	Ne2 O-O Ng5 Qb8 Qh4 Bxg5 Qxg5 Bb7 Qe7 Qd8 Qxd8 Rfxd8
>00:00:18.9	0,46	10	2164716	Ne2 O-O Ng5 Qb8 Qh4 Bxg5 Qxg5 Bb7 Qe7 Qd8 Qxd8 Rfxd8
>00:00:47.0	0,52	11	5625510	Ne2 b4 f5 Qb5 f6 Bd8 Nf4 Bb7 Ng5 Bb6 Qf2
>00:01:46.1	0,54	12	12989789	Ne2 O-O Ng5 b4 Qh4 h5 Rfd1 Qb5 Rc7 Bd8 Rc2 Bb7
>00:03:01.1	0,60	12	23124132	f5 Nc5 f6 Bf8 Rfd1 b4 Ne2 Qb5 Nf4 Bb7 Ng5 Bc6
>00:04:17.9	0,50	13	33324542	f5 Nc5 fxg6 fxg6 Ne1 Na4 Nxa4 bxa4 Qf4 Rf8 Qh6 Rxf1+
>Kxf1 Bb4 Nf3 Qf7 Rc6
>
>
>Gambit Tiger 2.0, 96MB hash
>
>00:00:00.8	0,56	6	45082	Ng5 Qb8 Qh4 h6 Rfe1 Bb7
>00:00:01.3	0,36	7	220828	Ng5 Nb8 Ne2 h6 Qh4 Nc6 Rfd1 Nxd4 Nxd4
>00:00:02.8	0,44	7	336656	Rf2 b4 Nd1 Qb5 Ng5 Bb7 Rc7
>00:00:03.1	0,52	7	469983	Ne2 b4 Ng5 Qb5
>00:00:04.4	0,54	8	593209	Ne2 b4 Ng5 Qb5 Rc7 Bd8 Rc2 Bxg5 fxg5
>00:00:09.6	0,46	9	1096637	Ne2 O-O Ng5 Qb8 Qh4 Bxg5 Qxg5 Bb7 Qe7 Qd8 Qxd8 Rfxd8
>00:00:18.9	0,46	10	2164716	Ne2 O-O Ng5 Qb8 Qh4 Bxg5 Qxg5 Bb7 Qe7 Qd8 Qxd8 Rfxd8
>00:00:47.0	0,52	11	5625510	Ne2 b4 f5 Qb5 f6 Bd8 Nf4 Bb7 Ng5 Bb6 Qf2
>00:01:46.1	0,54	12	12989789	Ne2 O-O Ng5 b4 Qh4 h5 Rfd1 Qb5 Rc7 Bd8 Rc2 Bb7
>00:03:01.1	0,60	12	23124132	f5 Nc5 f6 Bf8 Rfd1 b4 Ne2 Qb5 Nf4 Bb7 Ng5 Bc6
>00:04:17.9	0,50	13	33324542	f5 Nc5 fxg6 fxg6 Ne1 Na4 Nxa4 bxa4 Qf4 Rf8 Qh6 Rxf1+
>Kxf1 Bb4 Nf3 Qf7 Rc6
>
>
>Chessmaster 8000, 128MB hash, Sel. Search=12
>
>Time	Depth	Score	Positions	Moves
>0:05	1/7	0.81	203046		1. Ne2 h5 2. Be3 a5 3. Qf2 h4 4.
>					Rfd1
>0:06	1/7	0.85	242069		1. Qf2 O-O 2. Qc2 f5 3. exf6 Nxf6
>					4. Ne2 Bd7
>0:08	1/8	0.84	344242		1. Qf2 b4 2. Na4 Qb5 3. Nc5 Qa5
>					4. Nxd7 Bxd7
>0:10	1/8	0.89	426411		1. Nb1 O-O 2. Nbd2 Bb4 3. Nb3 a5
>					4. a3 Be7
>0:13	1/8	1.04	612944		1. Ne2 h5 2. Qe1 b4 3. Qd2 Qb5
>					4. Rc7 Bb7 5. Bf2
>0:19	1/9	0.89	922956		1. Ne2 h5 2. Qe1 b4 3. Qd2 Qb5
>					4. Bf2 Qa5 5. Qc2 Qxa2
>0:29	1/9	0.94	1406272		1. f5 exf5 2. e6 Nf6 3. Qh4 Nh5
>					4. exf7+ Kxf7 5. Ng5+ Kg8 6. Bxh8
>					Kxh8
>1:12	1/10	1.20	3718409		1. f5 exf5 2. e6 Nf6 3. Qh4 Nh5
>					4. exf7+ Kxf7 5. Ng5+ Kg8 6. Bxh8
>					Kxh8 7. Qd4+ Bf6 8. Qc5
>2:55	1/11	1.20	9615168		1. f5 O-O 2. f6 Bb4 3. Be3 Re8
>					4. Qh4 a5 5. a3 Bf8 6. Ne2
>6:08	1/12	1.27	20763729	1. f5 gxf5 2. Qg7 Rf8 3. Qxh7 Nc5
>					4. Rfd1 a5 5. Ne2 Qb6 6. Be3 Bb7
>					7. Qh6
>
>Ernst.



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