Author: Jonas Cohonas
Date: 05:22:00 01/06/02
Go up one level in this thread
On January 06, 2002 at 07:55:12, Uri Blass wrote:
>On January 05, 2002 at 23:47:31, Jonas Cohonas wrote:
>
>>At the moment Shredder 6_ Dual is leading 5.0-2.0 with no losses so far, this
>>is game 7 which i found to be especially good!
>>Check out the difference in evals in the beginning of the game.
>>
>>[Event "Dual_Shredder6-1"]
>>[Site "Dual MP 1600+"]
>>[Date "2002.01.06"]
>>[Round "7.1"]
>>[White "Shredder 6"]
>>[Black "Fritz 7"]
>>[Result "1-0"]
>>[ECO "D16"]
>>[PlyCount "94"]
>>[EventDate "2002.01.05"]
>>
>>1. d4 {0} 1... d5 {0} 2. Nf3 {0} 2... Nf6 {0} 3. c4 {0} 3... c6 {0} 4. Nc3 {0}
>>4... dxc4 {0} 5. a4 {0} 5... Nbd7 {0} 6. e4 {0.61/14 93} 6... Qa5 {0.25/13 82}
>>7. Bd2 {0.83/13 45} 7... e5 {(e6) 0.03/13 53} 8. Bxc4 {0.57/13 105} 8... exd4 {
>>(Bb4) 0.00/13 102} 9. Bxf7+ {1.71/12 70} 9... Kxf7 {0.00/13 55} 10. Ng5+ {
>>1.69/12 148} 10... Kg6 {(Qxg5) 0.00/14 268} 11. Nd5 {2.02/12 147} 11... Qc5 {
>>(Qxd2+) 0.00/12 73} 12. Nf4+ {(h4) 2.29/11 53} 12... Kxg5 {-0.10/12 96} 13. h4+
>>{2.33/11 116} 13... Kh6 {-0.22/9 1} 14. g4 {2.33/11 112} 14... g5 {1.15/12 49}
>>15. hxg5+ {2.09/10 14} 15... Kxg5 {1.31/12 58} 16. Qf3 {2.77/11 60} 16... Rg8 {
>>0.90/11 71} 17. b4 {(Ne6+) 2.82/10 213} 17... Qe5 {(Nxg4) 0.00/12 68} 18. O-O-O
>>{(Rh5+) 4.21/10 40}
>
>I suspect a big catling bug by Fritz7
>
>Fritz7a did not expect 18.0-0-0 and had evaluation of 0.00
>
>Can Fritz7a find 18.0-0-0 in it's main line at move 17 after enough time
>
>Not that black has no good alternative to 17...Qe5
>
>Here is yace analysis after learning that 17...Qe5 is bad
>and Deep Fritz anaysis on p800(48 mbytes hash) when it has no problem to expect
>0-0-0 and see that white has a big advanatge after 17...Qe5
>The problem was clearly before 17...Qe5 but it is possible that the castling bug
>prevented Deep Fritz to play better in previous moves
>
>Shredder 6_Dual - Fritz 7a
>[D]r1b2br1/pp1n3p/2p2n2/2q3k1/PP1pPNP1/5Q2/3B1P2/R3K2R b KQ b3 0 1
>
>Analysis by Yace 0.99.56:
>
>17...Qxb4 18.Bxb4 Bxb4+ 19.Kd1
> µ (-0.88) Depth: 1 00:00:00
>17...Qc2
> -+ (-5.38) Depth: 1 00:00:00
>17...Qc2
> -+ (-5.38) Depth: 1 00:00:00
>17...Ne5
> -+ (-5.44) Depth: 1 00:00:00
>17...Ne5 18.Nd3+ Kg6 19.Qxf6+ Kxf6 20.Nxc5
> -+ (-4.99) Depth: 2 00:00:00
>17...Ne5 18.Nd5+ Kg6 19.Qxf6#
> -+ (-1.56) Depth: 2 00:00:00
>17...Ne5 18.Nd5+ Kg6
> +- (#2) Depth: 2 00:00:00
>17...Qc2 18.Rh5+ Nxh5 19.Nxh5+ Qxd2+
> ² (0.37) Depth: 2 00:00:00
>17...Qc2 18.Nd5+ Kg6
> -+ (-4.95) Depth: 2 00:00:00
>17...Qc2 18.Rh5+ Nxh5 19.Nxh5+ Qxd2+ 20.Kxd2 Bxb4+ 21.Kd3
> -+ (-3.15) Depth: 3 00:00:00
>17...Qd6 18.0-0-0
> -+ (-3.16) Depth: 3 00:00:00
>17...Qd6 18.Ne6+ Kg6 19.Qf5+ Kf7 20.Rxh7+ Ke8
> -+ (-4.47) Depth: 3 00:00:00
>17...Qd6 18.0-0-0 Rg6 19.Nxg6+ Qf4
> -+ (-4.07) Depth: 4 00:00:00
>17...Qd6 18.0-0-0 Nc5 19.Ne6+ Kg6 20.Nxc5 Nxe4
> -+ (-3.03) Depth: 4 00:00:00
>17...Qd6 18.0-0-0 b6 19.Rh5+ Nxh5 20.Nxh5+ Kh4 21.Rh1+ Qh2 22.Rxh2#
> +- (2.00) Depth: 4 00:00:00
>17...Qd6 18.0-0-0 Qxf4 19.Bxf4+ Kg6 20.g5
> +- (3.05) Depth: 4 00:00:00
>17...Qc2 18.Ng2+ Kg6 19.Nh4+ Kf7 20.Qc3
> +- (3.03) Depth: 4 00:00:00
>17...Qc2 18.Rh5+ Nxh5 19.Nxh5+ Qxd2+ 20.Kxd2 Bxb4+ 21.Ke2 Ne5
> -+ (-3.43) Depth: 4 00:00:00
>17...Qc2 18.Nd3+ Kg6 19.g5 Kg7 20.gxf6+ Nxf6
> -+ (-3.12) Depth: 5 00:00:00 175kN
>17...Qc2 18.Rh5+ Nxh5 19.Ne6+ Kh4 20.Qh1+ Kxg4 21.Qg2+ Kh4 22.Qh1+ Kg4
> = (0.00) Depth: 6 00:00:00 225kN
>17...Qc2 18.Rh5+ Nxh5 19.Ne6+ Kh4 20.Qh1+ Kxg4 21.Qg2+ Kh4 22.Qh1+ Kg4 23.Qg2+
>Kh4 24.Qh1+ Kg4
> = (0.00) Depth: 6 00:00:01 310kN
>17...Qc2 18.Rh5+ Nxh5 19.Ne6+ Kh4 20.Qh1+ Kxg4 21.Qg2+ Kh4 22.Bg5+ Rxg5 23.Qxg5+
>Kh3 24.Nf4+ Nxf4 25.Qg3#
> +- (#8) Depth: 7 00:00:02 690kN
>17...Qxb4 18.Rh5+ Nxh5 19.Ne6+ Kh4 20.Qh1+ Kxg4 21.Qg2+ Kh4 22.Nxd4 Rxg2 23.Nf5+
>Kh3 24.Ra3+ Qxa3 25.Bh6
> +- (#9) Depth: 7 00:00:10 5056kN
>17...Qxb4 18.Nd3+ Qxd2+ 19.Kxd2 h5 20.Qf5+ Kh6 21.e5 Kg7 22.exf6+ Nxf6 23.Qg5+
>Kf7 24.Ne5+ Ke7
> ± (1.29) Depth: 7 00:00:20 8721kN
>17...Qxb4 18.Nd3+ Qxd2+ 19.Kxd2 h5 20.Rag1 Kg6 21.g5 Kf7 22.gxf6 Bh6+ 23.Ke1
>Rxg1+ 24.Rxg1 Nxf6
> +- (1.43) Depth: 8 00:00:38 15593kN
>17...Qxb4 18.Nd3+ Qxd2+ 19.Kxd2 h5 20.Rag1 Kg6 21.g5 Nxe4+ 22.Qxe4+ Kf7 23.Rxh5
>Rg7
> +- (1.83) Depth: 9 00:00:42 16930kN
>17...Qxb4 18.Nd3+ Qxd2+ 19.Kxd2 h5 20.Rag1 Kh6 21.e5 Be7 22.Qf4+ Kh7 23.exf6
>Nxf6
> +- (2.27) Depth: 9 00:01:44 43083kN
>17...Qxb4 18.Nd3+ Qxd2+ 19.Kxd2 h5 20.Qf5+ Kh6 21.Ne5 Bb4+ 22.Kd1 Kg7 23.g5 Kf8
>24.Nxd7+ Kg7 25.gxf6+ Kh8
> +- (2.67) Depth: 10 00:02:30 56385kN
>17...Qxb4 18.Nd3+ Qxd2+ 19.Kxd2 h5 20.Qf5+ Kh6 21.Ne5 Bb4+ 22.Kc1 Rxg4 23.Nxg4+
>Kg7 24.Nxf6 Nxf6 25.Rg1+ Kf7
> +- (2.94) Depth: 10 00:06:06 144098kN
>
>(Blass, Tel-aviv 06.01.2002)
>
>Shredder 6_Dual - Fritz 7a
>r1b2br1/pp1n3p/2p2n2/2q3k1/PP1pPNP1/5Q2/3B1P2/R3K2R b KQ b3 0 1
>
>Analysis by Deep Fritz:
>
>17...Nxe4--
> -+ (-2.69) Depth: 1/3 00:00:00
>17...Nxe4-- 18.Ne6+ Kg6
> +- (5.84) Depth: 1/15 00:00:00
>17...Qxb4!
> +- (5.81) Depth: 1/15 00:00:00
>17...Qxb4! 18.Ne6+ Kg6
> ³ (-0.44) Depth: 1/15 00:00:00
>17...Qe7!
> µ (-1.03) Depth: 1/15 00:00:00
>17...Qe7!
> -+ (-5.31) Depth: 1/15 00:00:00
>17...Qe7--
> -+ (-2.47) Depth: 2/8 00:00:00
>17...Qe7-- 18.Nd5+ Kg6 19.Nxe7+ Bxe7
> ² (0.34) Depth: 2/8 00:00:00
>17...Qc4!
> µ (-0.94) Depth: 2/8 00:00:00
>17...Qc4! 18.Rc1
> -+ (-5.22) Depth: 2/9 00:00:00 1kN
>17...Qc4--
> -+ (-4.88) Depth: 3/18 00:00:00 2kN
>17...Qc4-- 18.e5 Bxb4 19.exf6
> -+ (-4.25) Depth: 3/18 00:00:00 4kN
>17...Qc2!
> -+ (-4.28) Depth: 3/18 00:00:00 5kN
>17...Qc2! 18.Ne6+ Kg6 19.Qf5+ Kf7
> -+ (-5.19) Depth: 3/18 00:00:00 6kN
>17...Qc2--
> -+ (-4.78) Depth: 4/14 00:00:00 7kN
>17...Qc2-- 18.Rh5+ Nxh5 19.Nxh5+ Qxd2+ 20.Kxd2
> -+ (-2.56) Depth: 4/20 00:00:00 11kN
>17...Qc2 18.Rh5+ Nxh5 19.Nxh5+ Qxd2+ 20.Kxd2 Bxb4+ 21.Kd1
> -+ (-2.56) Depth: 5/23 00:00:00 29kN
>17...Qc2 18.Rh5+ Nxh5 19.Nxh5+ Qxd2+ 20.Kxd2 Bxb4+ 21.Kd1
> -+ (-2.56) Depth: 6/24 00:00:00 65kN
>17...Qc2 18.Rh5+ Nxh5 19.Nxh5+ Qxd2+ 20.Kxd2 Bxb4+ 21.Kd1 Rd8
> -+ (-2.78) Depth: 7/30 00:00:00 181kN
>17...Qc2--
> -+ (-2.31) Depth: 8/24 00:00:00 230kN
>17...Qc2-- 18.Rh5+ Nxh5 19.Ne6+ Kh4 20.Qh1+ Kxg4 21.Qg1+ Kh4
> = (0.00) Depth: 8/34 00:00:01 807kN
>17...Qc2 18.Rh5+ Nxh5 19.Ne6+ Kh4 20.Qh1+ Kxg4 21.Qg1+ Kh4 22.Qh1+ Kg4 23.Qg1+
> = (0.00) Depth: 9/33 00:00:03 2086kN
>17...Qc2 18.Rh5+ Nxh5 19.Ne6+ Kh4 20.Qh1+ Kxg4 21.Qg1+ Kh4 22.Qh1+ Kg4 23.Qg1+
> = (0.00) Depth: 10/34 00:00:06 4614kN
>17...Qc2--
> +- (#10) Depth: 11/33 00:00:09 6278kN
>17...Qc2-- 18.Rh5+ Nxh5 19.Ne6+ Kh4 20.Qh1+ Kxg4 21.Qg2+ Kh4 22.Bg5+ Rxg5
>23.Qxg5+
> +- (#8) Depth: 11/33 00:00:12 8865kN
>17...Qd6!
> +- (#9) Depth: 11/36 00:00:24 18632kN
>17...Bd6!
> +- (28.47) Depth: 11/38 00:00:32 26457kN
>17...Bd6! 18.bxc5 Bxf4 19.Qxf4+ Kg6 20.g5 Rh8 21.gxf6 Kf7 22.e5 Nxc5 23.Qxd4
> +- (6.97) Depth: 11/40 00:00:53 40317kN
>17...Qe5!
> +- (6.94) Depth: 11/40 00:01:03 47705kN
>17...Qe5! 18.0-0-0 h6 19.Qg3 Qxf4 20.Qxf4+ Kg6 21.e5 Nxe5 22.Qxe5 Bxg4
> ± (1.31) Depth: 11/40 00:02:03 88978kN
>17...Qe5 18.0-0-0 h6 19.Qg3 Qxf4 20.Bxf4+ Kg6 21.e5 Nd5 22.e6 Nxf4
> +- (1.50) Depth: 12/36 00:02:49 122082kN
>
>(Blass, Tel-aviv 06.01.2002)
>
>Uri
Yes i too suspected the 0-0-0 bug in Fritz 7a to be a problem here, but if you
look at Shredder's eval from 9.Bxf7 it is already ahead by a healthy +1.71 and i
suspect that the casteling bug aside Shredder have a better understanding of
this kind of position.
Regards
Jonas
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