Author: Dann Corbit
Date: 14:01:00 03/27/04
Go up one level in this thread
On March 27, 2004 at 13:53:48, Derek Paquette wrote:
>New game
>r1bqk1nr/pppp1ppp/2n5/b7/2BpP3/2P2N2/P4PPP/RNBQ1RK1 b kq - 0 1
>
>Analysis by Shredder 8:
>
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 1/3 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0
> ³ (-0.63) Depth: 5/17 00:00:00
>1...dxc3 2.Qd3 Nf6 3.Nxc3 0-0 4.Bb2
> ³ (-0.53) Depth: 6/15 00:00:00
>1...Nf6 2.Nxd4 Ne5 3.Bd5 c6 4.g4
> ³ (-0.54) Depth: 6/15 00:00:00
>1...Nf6 2.Ng5 0-0 3.Ba3 d6 4.cxd4
> ³ (-0.60) Depth: 6/15 00:00:00
>1...Nf6 2.e5 d5 3.Bb5 Ne4 4.Bxc6+ bxc6 5.Qa4 Bxc3 6.Nxc3 Nxc3 7.Qxc6+ Bd7
> ³ (-0.45) Depth: 7/19 00:00:00 54kN
>1...Nf6 2.e5 Ne4 3.Qxd4 Nxd4 4.Bxf7+ Kxf7 5.Ng5+ Nxg5
> ³ (-0.70) Depth: 8/19 00:00:00 115kN
>1...Nf6 2.e5 Ne4 3.Qb3 d6 4.cxd4 0-0 5.Qd3
> ³ (-0.70) Depth: 8/19 00:00:00 120kN
>1...Nf6 2.e5 Ne4 3.Qb3 Nxc3 4.Nxc3 Bxc3 5.Bxf7+ Kf8
> ³ (-0.45) Depth: 9/24 00:00:01 142kN
>1...Nf6 2.e5 d5 3.Bb5 Ne4 4.Bxc6+ bxc6 5.Qa4 Bxc3 6.Qxc6+ Qd7 7.Qxc7 Qxc7
> ³ (-0.45) Depth: 9/24 00:00:01 212kN
>1...Nf6 2.e5 d5 3.Bb5 Ne4 4.cxd4 Bd7 5.Qb3 Bc8
> = (-0.21) Depth: 10/26 00:00:01 347kN
>1...dxc3 2.Qb3 Qe7 3.Bg5 Nf6 4.Nxc3 Bxc3 5.Qxc3 d6 6.Bxf6 Qxf6 7.Qe5+ Nxe5
> = (-0.22) Depth: 10/29 00:00:02 529kN
>1...dxc3 2.Qb3 Qe7 3.Nxc3 Nf6 4.e5 Nxe5 5.Nxe5 Qe6 6.Bxe6
> = (-0.22) Depth: 10/29 00:00:02 556kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Nf6 5.Bxf6 gxf6 6.Bxf7+ Qxf7 7.Qxb7 Bxb7
> ³ (-0.47) Depth: 11/27 00:00:04 1003kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Nf6 5.Bxf6 Qxf6 6.Nd5 Qg6 7.Nf4 Qf6
> ³ (-0.56) Depth: 11/27 00:00:05 1237kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Nh6 5.Qa3 Bb4 6.Qb2 0-0 7.Nd5 Qxe4 8.Bxh6
>gxh6 9.Nxc7
> ³ (-0.33) Depth: 12/33 00:00:07 1793kN
>1...Nf6 2.cxd4 Nxe4 3.Bd5 Nf6 4.Bxc6 bxc6 5.Qe1+ Bxe1
> ³ (-0.34) Depth: 12/37 00:00:10 2652kN
>1...Nf6 2.e5 d5 3.Bb5 Ne4 4.Bxc6+ bxc6 5.Qa4 Bxc3 6.Nxc3 Nxc3 7.Qxc6+ Bd7 8.Qc5
>Ne2+ 9.Kh1 c6 10.Nxd4 Nxd4 11.Qxd4
> ³ (-0.35) Depth: 12/37 00:00:12 3154kN
>1...Nf6 2.e5 Ne4 3.Qc2 Nxc3 4.Bg5 Nb4 5.Qc1 Nxb1 6.Bxd8 Kxd8
> = (-0.11) Depth: 13/36 00:00:17 4694kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Nh6 5.Qa3 Bb4 6.Qb2 0-0 7.Qa3 Bxa3
> = (-0.12) Depth: 13/36 00:00:19 5294kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Bxc3 5.Qxc3 Nf6 6.Bd3 0-0 7.e5 Nd5 8.Qc4 Qe6
> ³ (-0.41) Depth: 13/36 00:00:22 6145kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Bxc3 5.Qxc3 Nf6 6.Bxf6 Qxf6 7.e5 Qe7 8.Qa3
> ³ (-0.65) Depth: 14/39 00:00:35 9387kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Nh6 5.Nd5 0-0 6.Bd3 Re8 7.Nf4 Qxe4 8.Bxe4
>Rxe4
> ³ (-0.49) Depth: 15/39 00:00:55 14629kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Bxc3 5.Qxc3 Nf6 6.Rfe1 0-0 7.Bd3 d6 8.e5
>dxe5 9.Bxg6
> ³ (-0.54) Depth: 16/45 00:01:46 28157kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Nf6 5.Bxf6 Qxf6 6.Nd5 Qd8 7.Qa3 d6 8.Bb5 0-0
>9.Bxc6
> ³ (-0.49) Depth: 17/47 00:03:17 52444kN
>1...dxc3 2.Qb3 Qf6 3.e5 Qg6 4.Nxc3 Nge7 5.Ne2 0-0 6.Nf4 Qe4 7.Bxf7+ Kh8 8.Nd3 d6
> ³ (-0.68) Depth: 18/52 00:09:23 148771kN
>1...dxc3 2.Qb3 Qf6 3.e5 Qg6 4.Nxc3 Nge7 5.Ne2 0-0 6.Nf4 Qe4 7.Bxf7+ Kh8 8.Nd3 b6
>9.Ng5 Qf5 10.f4
> ³ (-0.64) Depth: 19/50 00:14:58 227754kN
>1...dxc3 2.Qb3 Qf6 3.e5 Qg6 4.Nxc3 Nge7 5.Ne2 0-0 6.Nf4 Qe4 7.Bd3 Qb4 8.Bxh7+
>Kxh7 9.Ng5+ Kg8 10.Qh3 Qxf4 11.Bxf4 Nd4
> ³ (-0.39) Depth: 20/45 00:19:50 293603kN
>1...dxc3 2.Qb3 Qf6 3.e5 Qg6 4.Nxc3 Nge7 5.Ne2 0-0 6.Nf4 Qe4 7.Bd3 Qb4 8.Bxh7+
> ³ (-0.39) Depth: 20/53 00:27:50 421826kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Bxc3 5.Qxc3 Nf6 6.Rae1 0-0 7.Bd3 h6 8.e5 Nd5
>9.Qc4 Qh5 10.Bxh6 Nb6 11.Bg5
> ³ (-0.38) Depth: 21/55 01:02:41 953418kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Bxc3 5.Qxc3 Nf6 6.Rfe1 0-0 7.Bd3 d5 8.exd5
>Nxd5 9.Qc2 Qh5 10.Be4 Ncb4
> ³ (-0.51) Depth: 22/57 02:05:59 1935716kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Bxc3 5.Qxc3 Nf6 6.Rfe1 0-0 7.Bd3 d5 8.exd5
>Nxd5 9.Qb3 Bf5 10.Bxf5 Qxf5 11.Qxb7 Ncb4 12.Re5
> ³ (-0.56) Depth: 23/61 04:07:39 3837544kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Bxc3 5.Qxc3 Nf6 6.e5 Ne4 7.Qe3 h6 8.Bh4 0-0
>9.Bd5 d6 10.Qxe4 dxe5 11.Qxg6 Kh8
> ³ (-0.31) Depth: 24/59 05:41:24 5237053kN
>1...dxc3 2.Qb3 Qf6 3.Bg5 Qg6 4.Nxc3 Bxc3 5.Qxc3 Nf6 6.e5 Ne4 7.Qe3 0-0 8.Bd3 d5
>9.exd6 Bf5 10.Be7 Nxd6 11.Nh4
> = (-0.25) Depth: 24/63 08:13:41 7597816kN
As you can see, Shredder 8 still does not get it. Nor does any other chess
engine I have tried. However, the score is much closer to reality than other
chess engines.
Here is Shredder 7.04's analysis of :
[D]r1bqk2r/ppppnppp/2n5/b7/2BpP3/2P2N2/P4PPP/RNBQ1RK1 w kq -
Which is the position for white after black moves the knight to e7 instead of
capturing the pawn on d3:
Analysis from E:\bozuk.epd
3/27/2004 1:52:07 AM Level: 30000 Seconds
Analyzing engine: Shredder 7.04
1) bqk2r/ppppnppp/2n5/b
Searching move:
Best move (Shredder 7.04): c3xd4
Not found in: 8:20:00
2 00:00 -0.41 c3xd4 00
2+ 00:00 -0.26 Nf3xd4 Ne7d5
2 00:00 -0.11 Nf3xd4 Nc6e5
3 00:00 0.17 Nf3xd4 Nc6e5 Bc4b3
4- 00:00 -0.12 Nf3xd4 Nc6e5 Bc1g5 Ne5xc4 Bg5xe7
4 00:00 -0.44 Nf3xd4 Nc6e5 Bc4b3 00
4+ 00:00 -0.39 c3xd4 d7d5 e4xd5 Bc8h3
4 00:00 -0.22 c3xd4 d7d5 e4xd5 Ne7xd5
4+ 00:00 -0.21 Bc1b2 d7d5 e4xd5 Bc8e6 d5xc6 Be6xc4 c6xb7 Ba5xc3 b7xa8Q
4 00:00 -0.21 Bc1b2 00 c3xd4 d7d6
5- 00:00 -0.46 Bc1b2 00 Bc4xf7+ Kg8xf7 Qd1xd4 Nc6xd4
5 00:00 -0.61 Bc1b2 d4xc3 Nb1xc3 00 Nc3d5 d7d6
5+ 00:00 -0.60 Nf3xd4 Nc6xd4 c3xd4 Ba5e1
5+ 00:00 -0.25 Nf3xd4 00 Bc1g5
5 00:00 -0.12 Nf3xd4 Nc6e5 Bc4b3 00 Bc1g5
5+ 00:00 -0.11 c3xd4 Nc6xd4 Qd1xd4 d7d5
5+ 00:00 0.24 c3xd4 Nc6e5 Nf3xe5 d7d5
5 00:00 0.28 c3xd4 d7d5 e4xd5 Ne7xd5 Bc1g5
6- 00:00 0.03 c3xd4 d7d6 d4d5 Nc6e5 Bc1h6
6 00:00 0.02 c3xd4 d7d6 d4d5 Nc6e5 Nf3xe5 d6xe5
7 00:00 0.24 c3xd4 d7d5 e4xd5 Ne7xd5 Bc1g5 f7f6 Qd1b3 h7h6
8 00:01 0.35 c3xd4 d7d5 e4xd5 Ne7xd5 Qd1b3 Nc6e7 Bc1g5 f7f6 Qb3a3 f6xg5
Qa3xa5
9- 00:02 0.10 c3xd4 d7d5 e4xd5 Ne7xd5 Qd1b3 Nc6e7 Bc1g5 f7f6 Nf3h4 f6xg5
Bc4xd5
9 00:02 0.04 c3xd4 d7d5 e4xd5 Ne7xd5 Bc1a3 Bc8e6 Nb1d2 Ba5b4 Ba3xb4
Nc6xb4
10+ 00:04 0.29 c3xd4 d7d5 e4xd5 Ne7xd5 Qd1b3 Nc6e7 Bc1g5 00 Bc4xd5 Ne7g6
Bg5xd8
10 00:04 0.29 c3xd4 d7d5 e4xd5 Ne7xd5 Qd1b3 Nc6e7 Bc1g5 c7c6 Bg5xe7
Ke8xe7 Qb3e3+ Nd5xe3
11 00:11 0.24 c3xd4 d7d5 e4xd5 Ne7xd5 Bc1a3 Bc8e6 Bc4b5 Nd5b4 Ba3xb4
Ba5xb4 Bb5xc6+ b7xc6 Nf3e5
12 00:23 0.11 c3xd4 d7d5 e4xd5 Ne7xd5 Qd1b3 Nc6e7 Bc1a3 c7c6 Ba3xe7
Ke8xe7 Bc4xd5 Qd8xd5 Qb3a3+ Ke7e8 Nb1c3
13 01:40 0.22 c3xd4 Ba5b6 Nb1c3 00 d4d5 Nc6a5 Bc4d3 f7f5 d5d6 c7xd6
Bc1g5 Na5c4
14 02:57 0.03 c3xd4 Ba5b6 Nb1c3 00 d4d5 Nc6a5 Bc4e2 d7d6 Nc3a4 f7f5
Na4xb6 a7xb6 Qd1a4 f5xe4 Qa4xe4
15 07:09 0.27 c3xd4 d7d5 e4xd5 Ne7xd5 Bc1a3 Ba5b4 Ba3xb4 Nd5xb4 Rf1e1+
Bc8e6 Bc4xe6 f7xe6 Re1xe6+ Ke8f7 Qd1b3 Qd8d7 Re6xc6+ Qd7e6 Rc6xe6
16 14:28 0.21 c3xd4 00 d4d5 Nc6b8 Qd1a4 Ba5b6 d5d6 c7xd6 Nb1c3 Nb8c6
Bc1f4 d6d5 e4xd5 Ne7g6 Bf4d6
17 29:28 0.10 c3xd4 00 d4d5 Nc6b8 d5d6 c7xd6 Bc1b2 d6d5 Qd1d4 f7f6
Bc4xd5+ Kg8h8 Bd5b3 Nb8c6 Qd4c4 d7d6 Nb1d2 Nc6e5 Qc4e6
18 2:20:38 0.12 c3xd4 Ba5b6 Nf3g5 d7d5 e4xd5 Nc6a5 d5d6 Na5xc4 Qd1a4+
Ne7c6 Rf1e1+ Nc4e5 Re1xe5+ Ke8f8 d6xc7 Bb6xc7 Bc1a3+ Kf8g8 Ng5xf7 Kg8xf7 Qa4b3+
Kf7g6 Qb3d3+ Kg6f7 Qd3b3+ Kf7g6 Qb3d3+ Kg6f7 Qd3b3+
19 4:37:24 0.02 c3xd4 00 d4d5 Nc6b8 d5d6 c7xd6 Bc1b2 d6d5 e4xd5 d7d6
Nb1d2 Rf8e8 Nd2b3 Ba5b6
20 8:01:19 0.08 c3xd4 00 d4d5 Nc6b8 Qd1a4 Ba5b6 d5d6 c7xd6 Nb1c3 d6d5
Nc3xd5 Ne7xd5 Bc4xd5 Nb8c6 Bc1g5
3/27/2004 10:12:10 AM, Time for this analysis: 08:20:00, Rated time: 8:20:00
I am also analyzing the position after the pawn capture right now. It has only
been 4 hours so far. I analyzed this position years ago and found the GM advice
to be sound. I am trying again with modern equipment and programs to see if I
can improve the machine analysis. The last time I tried, you had to make two
moves along the pv before the programs could get an inkling of what is actually
going on.
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