Author: Dann Corbit
Date: 10:45:25 04/02/04
Go up one level in this thread
On April 01, 2004 at 20:10:21, Uri Blass wrote:
>This is from my correspondence game
>
>How much time does your program need to avoid Qxb2(I played Qc4 and won against
>vladimir turkov)
>
>I decided based on analysis that Qc4 is better but I believe that programs can
>avoid Qxb2 after many hours of analysis(I found that white has probably a draw
>after Qxb2 when Qc4 gives black the better position)
>
>[D]3r1rk1/pp2b1pp/1n3p2/4p3/7Q/2P1B1N1/PP2qPPP/R4RK1 b - - 0 18
>
>
>Here is the game
>
>[Event "40'/40"]
>[Site "Tel-Aviv"]
>[Date "2004.03.29"]
>[Round "?"]
>[White "New game"]
>[Black "Yace Paderborn"]
>[Result "*"]
>[ECO "B22"]
>[Annotator "Blass,Uri"]
>[PlyCount "78"]
>[TimeControl "40/2400:0/0:0/0"]
>
>{64MB, Shredder7.ctg, URI-PC
>} 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3
>Nc6 6. Bc4 Nb6 7. Bb3 d5 8. exd6 Qxd6 9. O-O Be6 10. Bxe6 Qxe6 11. Nxd4 Nxd4
>12. Qxd4 Rd8 13. Qh4 Qe2 14. Nd2 e5 15. Ne4 Be7 16. Bg5 f6 17. Be3 O-O 18. Ng3
>Qc4 19. Qh3 g6 20. Rfe1 Rd3 21. Bxb6 axb6 22. Qh6 Rfd8 23. Qc1 b5 24. Re4 Qc7
>25. Nf1 f5 26. Re2 e4 27. a3 Kg7 28. Qe1 Qc4 29. Rc2 Bg5 30. Qe2 h5 31. Re1 Qb3
>32. g3 h4 33. Rb1 hxg3 34. fxg3 Rf3 35. g4 Qd5 36. c4 Qd4+ 37. Kh1 fxg4 38.
>cxb5 e3 39. Ng3 Rf2 *
>
>Uri
This is a really marvelous position. I think probably you are right about the
best choice. Also, the move every program wants to make slowly marches towards
the enemy's favor in eval (probably drawish at best).
Analysis from E:\qc4.epd
4/1/2004 10:28:11 PM Level: 1000 Seconds
Analyzing engine: Yace
1) Qc4;
Searching move: Qe2-c4
Best move (Yace): Qe2xb2
Not found in: 16:40
2 00:00 1.10 Qe2xb2 c3c4
3 00:00 1.03 Qe2xb2 Ra1b1 Qb2xc3
4 00:00 1.02 Qe2xb2 Be3xb6 Qb2xb6 Qh4c4+ Rf8f7 Ra1d1
5 00:00 0.96 Qe2xb2 Ng3f5 Rf8e8 Ra1b1 Qb2xc3
6 00:00 0.94 Qe2xb2 Ng3f5 Rf8e8 Be3xb6 Qb2xb6 Qh4c4+ Kg8h8 Ra1d1
7 00:00 0.90 Qe2xb2 Ng3f5 Rf8e8 Qh4g4 g7g6 Ra1b1 Qb2xc3
8 00:03 0.83 Qe2xb2 Ng3f5 Be7a3 c3c4 Rf8f7 Rf1b1 Qb2c2 Be3xb6 a7xb6
9 00:09 0.78 Qe2xb2 Ng3f5 Be7a3 c3c4 Rf8f7 Be3xb6 a7xb6 Rf1b1 Qb2c2
Qh4g4
10 00:37 0.72 Qe2xb2 Qh4e4 Rd8d7 Qe4g4 Rd7c7 Ra1b1 Qb2xa2 Ng3f5 g7g6
Be3xb6 a7xb6
11 01:58 0.72 Qe2xb2 Qh4e4 Rd8d7 Qe4g4 Rd7c7 Ra1b1 Qb2xa2 Ng3f5 g7g6
Be3xb6 a7xb6 Rb1xb6
12 07:01 0.68 Qe2xb2 Qh4g4 Rf8f7 Ng3f5 Kg8h8 Ra1d1 Rd8xd1 Rf1xd1 Be7f8
Be3xb6 Qb2xb6 Rd1d8
13 14:44 0.64 Qe2xb2 Qh4g4 Rf8f7 Ng3f5 Kg8h8 c3c4 g7g6 Rf1b1 Qb2c3
Be3xb6 a7xb6 Nf5h6 Rf7f8 Rb1d1
4/1/2004 10:44:57 PM, Time for this analysis: 00:16:40, Rated time: 16:40
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Analysis from E:\qc4.epd
4/1/2004 10:28:11 PM Level: Infinite
Analyzing engine: Ufim404
1) Qc4;
Searching move: Qe2-c4
Best move (Ufim404): Qe2xb2
Not found in: 16:40
2 00:00 1.48 e2b2 g3f5
3 00:00 1.46 e2b2 g3f5 e7a3
4 00:00 1.54 e2b2 g3f5 e7a3 a1b1 b2c3 e3b6 a7b6 b1b6
5 00:00 1.36 e2b2 g3f5 e7a3 h4g4 g7g6
6 00:02 1.35 e2b2 g3f5 e7a3 h4g4 g7g6 f5h6 g8h8
7 00:08 1.17 e2b2 h4g4 e7a3 e3h6 f8f7 g3f5 g7g6
8 00:34 1.12 e2b2 h4g4 e7a3 g3h5 f8f7 f1d1 a3f8 e3b6 b2b6
9 02:02 1.10 e2b2 h4g4 e7a3 g4e6 g8h8 f1b1 b2c3 e3b6 a7b6 e6b6 d8d7
10 06:51 1.03 e2b2 g3f5 e7a3 c3c4 b2b4 f1b1 b4c4 h4c4 b6c4 b1b7 g7g6
4/1/2004 11:18:27 PM, Time for this analysis: 00:16:40, Rated time: 50:00
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Analysis from E:\qc4.epd
4/1/2004 11:36:32 PM Level: 1000 Seconds
Analyzing engine: Amy-net-087
1) Qc4;
Searching move: Qe2-c4
Best move (Amy-net-087): Qe2xb2
Not found in: 16:40
2 00:00 -1.10 1. .. Qxb2 2. Ne4
3 00:00 -0.99 1. .. Qxb2 2. Rab1 Qxc3 3. Bxb6 axb6
4 00:00 -0.99 1. .. Qxb2 2. Rab1 Qxc3 3. Bxb6 axb6
5 00:00 -0.84 1. .. Qxb2 2. Bxb6 Qxb6 3. Qc4+ Rf7 4. Rad1
6 00:00 -0.89 1. .. Qxb2 2. Qg4 Nd5 3. Qe6+ Kh8 4. Rab1 Qxc3
7 00:01 -0.83 1. .. Qxb2 2. Nf5 Ba3 3. Qg4 g6 4. Rab1 Qxc3
8 00:03 -0.76 1. .. Qxb2 2. Qe4 Qxc3 3. Rac1 Qa3 4. Qxb7 Nd5 5. Nf5
9 00:06 -0.72 1. .. Qxb2 2. Rab1 Qxa2 3. Bxb6 axb6 4. Rxb6 Qd5 5. Rfb1
Rd7
10 00:11 -0.64 1. .. Qxb2 2. Rab1 Qxc3 3. Bxb6 axb6 4. Rxb6 Qc7 5. Rfb1
Rd1+ 6. Rxd1 Qxb6
11 00:43 -0.72 1. .. Qxb2 2. Qe4 Qxc3 3. Rac1 Qa5 4. Rc7 Nd5 5. Rxb7 Nxe3
6. Qxe3 Bc5
12 01:50 -0.60 1. .. Qxb2 2. Rab1 Qxa2 3. Bxb6 axb6 4. Rxb6 Rd7 5. Qg4
Qd5 6. c4 Qd4
13 06:38 -0.40 1. .. Qxb2 2. Qg4 Ba3 3. Qe6+ Kh8 4. Rab1 Qxc3 5. Bxb6
axb6 6. Rxb6 Rb8 7. Ne4
4/1/2004 11:51:59 PM, Time for this analysis: 00:15:24, Rated time: 16:40
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Analysis from E:\qc4.epd
4/1/2004 11:36:32 PM Level: Infinite
Analyzing engine: Arasanx-74a
1) Qc4;
Searching move: Qe2-c4
Best move (Arasanx-74a): Qe2xb2
Not found in: 16:40
2 00:06 0.87 Qxb2 Nf5
3 00:06 0.92 Qxb2 Nf5 Nd5
4 00:06 0.92 Qxb2 Nf5 Nd5 Bxa7
5 00:06 0.71 Qxb2 Nf5 Bd6 Rad1 Bc7
6 00:06 0.73 Qxb2 Nf5 Bd6 Rad1 Ba3 Rb1
7 00:07 0.60 Qxb2 Qg4 Ba3 Nf5 g6 Bh6 Rf7
8 00:07 0.56 Qxb2 Qg4 Bd6 Qe6+ Kh8 Nf5 Ba3 Rab1 Qxc3
9 00:13 0.57 Qxb2 Nf5 Ba3 Qg3 Rd7 Rab1 Qxa2 Bxb6 axb6
10 00:26 0.65 Qxb2 Qg4 g6 Qe6+ Rf7 Rab1 Qxc3 Bxb6 axb6 Rxb6
11 01:12 0.65 Qxb2 Nf5 Rf7 Qh5 Ba3 c4 Nxc4 Nh6+ gxh6 Qg4+ Kf8 Bxh6+ Ke8
Qxc4
12 02:58 0.67 Qxb2 Nf5 Ba3 c4 g6 Nh6+ Kh8 Ng4 Be7 Rab1 Qxa2 Nxe5 g5
13 09:01 0.67 Qxb2 Nf5 Rf7 a4 Bf8 a5 Nd5 Bxa7 Nxc3 Be3 Ne2+ Kh1 Qb4 Qh5
Qe4
4/2/2004 12:25:28 AM, Time for this analysis: 00:16:40, Rated time: 49:08
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Analysis from E:\qc4.epd
4/2/2004 12:30:00 AM Level: 1000 Seconds
Analyzing engine: Shredder 7.04
1) Qc4;
Searching move: Qe2-c4
Best move (Shredder 7.04): Qe2xb2
Not found in: 16:40
2 00:00 0.50 Qe2xb2 Ng3f5
3 00:00 0.50 Qe2xb2 Ng3f5
4 00:00 0.50 Qe2xb2 Ng3f5
5 00:00 0.50 Qe2xb2 Ng3f5
6 00:00 0.50 Qe2xb2 Ng3f5
7 00:00 0.50 Qe2xb2 Ng3f5
8 00:00 0.50 Qe2xb2 Ng3f5
9 00:00 0.50 Qe2xb2 Ng3f5
10 00:01 0.50 Qe2xb2 Ng3f5
11 00:01 0.50 Qe2xb2 Ng3f5
12 00:21 0.39 Qe2xb2 Ng3f5 Rf8f7 Qh4g4 Kg8h8 c3c4 Qb2b4 Ra1b1 Qb4xc4
Qg4xc4 Nb6xc4 Rb1xb7 Nc4xe3 f2xe3
13 00:54 0.30 Qe2xb2 Ng3f5 Be7a3 Ra1b1 Qb2e2 Rf1e1 Qe2d3 Qh4g4 g7g6
Nf5h6+ Kg8g7 Rb1b3 f6f5 Qg4h4 Qd3d1 Nh6xf5+ Rf8xf5 Qh4xh7+ Kg7xh7
14 02:04 0.25 Qe2xb2 Ng3f5 Rf8f7 Qh4g4 Kg8h8 c3c4 Be7f8 Rf1b1 Qb2c3
Be3xb6 a7xb6 Rb1c1
15 03:45 0.25 Qe2xb2 Ng3f5 Rf8f7 Qh4g4 Kg8h8 Ra1d1 Rd8xd1 Qg4xd1 Be7f8
Qd1d8 Kh8g8 Be3xb6 a7xb6 Nf5d6
16 09:32 0.25 Qe2xb2 Ng3f5 Rf8f7 Qh4g4 Kg8h8 Ra1d1 Rd8xd1 Qg4xd1 Be7f8
Qd1d8 Kh8g8 Be3xb6 Qb2xb6 Qd8xb6 a7xb6
4/2/2004 12:42:09 AM, Time for this analysis: 00:12:06, Rated time: 16:40
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Analysis from E:\qc4.epd
4/2/2004 12:30:00 AM Level: Infinite
Analyzing engine: Aristarch 4.41
1) Qc4;
Searching move: Qe2-c4
Best move (Aristarch 4.41): Qe2xb2
Not found in: 16:40
2+ 00:01 0.42 Qe2xb2 Be3xb6
2 00:01 1.17 Qe2xb2 Ng3f5
3 00:01 1.09 Qe2xb2 Be3xb6 a7xb6 Ng3f5
4 00:01 0.99 Qe2xb2 Be3xb6 Qb2xb6 Qh4c4+ Kg8h8 Ra1d1
5 00:01 0.98 Qe2xb2 Ng3f5 Be7a3 Be3xb6 a7xb6 Qh4g4
6 00:01 0.76 Qe2xb2 Ng3f5 Be7a3 Be3xb6 Qb2xb6 Qh4c4+ Kg8h8 Ra1d1
7 00:01 0.70 Qe2xb2 Ng3f5 Be7a3 Be3xb6 Qb2xb6 Qh4g4 Qb6c7 Ra1d1
8 00:02 0.89 Qe2xb2 Be3xb6 Qb2xb6 Qh4c4+ Kg8h8 Ra1b1 Qb6c6 Qc4xc6 b7xc6
Rb1b7 Be7c5
9 00:04 0.75 Qe2xb2 Ng3f5 Be7a3 Ra1b1 Qb2c2 Be3xb6 a7xb6 Qh4c4+ Rf8f7
Nf5e3 Qc2d2
10 00:12 0.44 Qe2xb2 Qh4g4 g7g6 Qg4e6+ Rf8f7 Qe6b3 Qb2a3 Be3xb6 a7xb6
Qb3xb6 Rd8d2 Rf1d1
11 00:22 0.65 Qe2xb2 Qh4g4 g7g6 Qg4e6+ Rf8f7 Rf1d1 Qb2xc3 Rd1xd8+
12 01:35 0.66 Qe2xb2 Qh4e4 Rf8f7 Ra1d1 Qb2xc3 Qe4xb7 Qc3c2 Qb7f3 Rf7f8
Ng3f5 Be7b4 Qf3g4
13 03:47 0.39 Qe2xb2 Qh4g4 Kg8h8 Ra1b1 Qb2xc3 Ng3f5 Rf8f7 Rf1c1 Qc3a3
Rc1c7 g7g6 Nf5h6 Rf7f8
14 07:04 0.49 Qe2xb2 Qh4g4 Kg8h8 Ng3f5
15 14:33 0.32 Qe2xb2 Qh4g4 Be7a3 Be3xb6 Qb2xb6 Ra1d1
4/2/2004 1:15:47 AM, Time for this analysis: 00:16:40, Rated time: 35:32
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Analysis from E:\qc4.epd
4/2/2004 12:30:00 AM Level: Infinite
Analyzing engine: Crafty-1912
1) Qc4;
Searching move: Qe2-c4
Best move (Crafty-1912): Qe2xb2
Not found in: 16:40
7 00:01 -0.59 1. ... Qxb2 2. Nf5 Rfe8 3. Bxb6 Qxb6 4. Qg4 g6 5. Rad1
8 00:01 -0.52 1. ... Qxb2 2. Nf5 Ba3 3. Qg4 g6 4. Bh6 Rfe8 5. c4
9 00:04 -0.70 1. ... Qxb2 2. Nf5 Ba3 3. Qg3 g6 4. Nh6+ Kg7 5. Ng4 Kh8 6.
Bxb6 Qxb6 7. Rad1
10 00:16 -0.70 1. ... Qxb2 2. Qe4 Qxc3 3. Rac1 Qa3 4. Nf5 Rf7 5. Rc7 Bb4
6. Rxf7 Kxf7 7. Qxb7+
11 00:47 -0.71 1. ... Qxb2 2. Qe4 Qxc3 3. Rac1 Qa5 4. Nf5 Rf7 5. Rc7 Bf8
6. Rxf7 Kxf7 7. Qxb7+ Kg8
12 02:39 -0.68 1. ... Qxb2 2. Qe4 Rd7 3. Qg4 Rc7 4. Nf5 Ba3 5. Bh6 Rff7
6. Be3 Rfd7 7. Nh6+ Kh8
13 08:03 -0.56 1. ... Qxb2 2. Nf5 Ba3 3. Rab1 Qe2 4. Bxb6 axb6 5. Rxb6
Rd1 6. Ng3 Rxf1+ 7. Nxf1 Rd8 8. Qh3 Bc5 9. Qe6+ Kh8 10. Rxb7 Bxf2+
4/2/2004 1:49:24 AM, Time for this analysis: 00:16:40, Rated time: 52:54
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Analysis from E:\qc4.epd
4/2/2004 12:30:00 AM Level: Infinite
Analyzing engine: DeepSjeng
1) Qc4;
Searching move: Qe2-c4
Best move (DeepSjeng): Qe2xb2
Not found in: 16:40
3 00:00 1.56 Qe2xb2 Ra1b1 Qb2xc3 Be3xb6 a7xb6 Rb1xb6
4 00:00 1.41 Qe2xb2 Ng3f5 Rf8e8 Ra1d1 Rd8xd1 Rf1xd1 Qb2xc3 Nf5xe7+
Re8xe7
5 00:00 1.32 Qe2xb2 Qh4g4 Nb6d5 Ng3f5 g7g6 Be3xa7 Qb2xc3 Nf5xe7+ Nd5xe7
6 00:00 1.16 Qe2xb2 Qh4g4 Be7a3 Ng3f5 g7g6 Ra1b1 Qb2xc3 Be3xb6 a7xb6
Rb1xb6
7 00:00 1.16 Qe2xb2 Qh4g4 Be7a3 Ng3f5 g7g6 Ra1b1 Qb2xc3 Be3xb6
8 00:01 1.16 Qe2xb2 Qh4g4 Be7a3 Ng3f5 g7g6 Ra1b1 Qb2xc3 Be3xb6 a7xb6
Rb1xb6
9 00:02 1.14 Qe2xb2 Qh4g4 Be7a3 Ng3f5 g7g6 Nf5h6+ Kg8h8 Qg4e6 Kh8g7
c3c4 f6f5
10 00:07 0.97 Qe2xb2 Qh4g4 Be7a3 Qg4e6+ Kg8h8 Ra1b1 Qb2xc3 Rb1b3 Qc3a5
Be3xb6 a7xb6 Rb3xb6 Rf8e8
11 00:20 0.83 Qe2xb2 Qh4g4 Kg8h8 Ng3f5 Rf8f7 Be3xb6 Qb2xb6 Qg4c4 Rd8f8
Ra1d1 Be7c5 Qc4d5 Qb6c7
12 01:05 0.83 Qe2xb2 Qh4g4 g7g6 Qg4e6+ Rf8f7 Rf1c1 Rd8d6 Qe6b3 Qb2xb3
a2xb3 a7a6 c3c4 Rd6c6 Rc1d1 f6f5 f2f3 g6g5
13 02:37 0.66 Qe2xb2 Qh4g4 Kg8h8 Ng3f5 Rf8f7 c3c4 Be7b4 Ra1b1 Qb2a3
Be3xb6 a7xb6 Rb1b3 Qa3a4 Rf1b1 Bb4c5 a2a3
14 07:46 0.71 Qe2xb2 Qh4g4 Be7a3 Qg4e6+ Rf8f7 Ra1d1 Rd8xd1 Rf1xd1 Ba3e7
Ng3f5 Be7f8 Rd1c1 g7g6 Nf5h6+ Bf8xh6 Be3xh6 Nb6d7 Qe6e8+ Nd7f8 a2a4 Qb2e2 c3c4
4/2/2004 2:23:23 AM, Time for this analysis: 00:16:40, Rated time: 1:13:58
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Analysis from E:\qc4.epd
4/2/2004 12:30:00 AM Level: Infinite
Analyzing engine: List512
1) Qc4;
Searching move: Qe2-c4
Best move (List512): Qe2xb2
Not found in: 16:40
5 00:00 0.76 Qe2xb2 Ng3f5 Rf8e8 Be3xb6 Qb2xb6 Ra1d1
6 00:01 0.70 Qe2xb2 Ng3f5 Be7a3 Qh4g4 g7g6 c3c4
7 00:01 0.58 Qe2xb2 Ng3f5 Rf8e8 Be3xb6 Qb2xb6 Qh4c4+ Kg8h8 Qc4f7 Be7f8
8 00:01 0.67 Qe2xb2 Ng3f5 Be7a3 Qh4g4 g7g6 Be3h6 Rf8e8 c3c4
9 00:02 0.65 Qe2xb2 Ng3f5 Be7a3 Ra1b1 Qb2xa2 Qh4g4 g7g6 Be3xb6 a7xb6
Rb1xb6
10 00:05 0.70 Qe2xb2 Ng3f5 Be7a3 c3c4 Kg8h8 Qh4g4 g7g6 Be3h6 Rf8f7 Nf5g3
11 00:14 0.73 Qe2xb2 Ng3f5 Be7a3 c3c4 Rf8f7 Be3xb6 a7xb6 Qh4g4 Rf7c7
Rf1d1 Rd8d2 Nf5h6+ Kg8h8
12 00:35 0.71 Qe2xb2 Ng3f5 Be7a3 c3c4 Rf8f7 Qh4g4 Rf7d7 Ra1d1 Kg8h8
Rd1xd7 Rd8xd7 Be3xb6 Qb2xb6 Rf1e1
13 01:21 0.49 Qe2xb2 Ng3f5 Be7a3 c3c4 g7g6 c4c5 g6xf5 c5xb6 f5f4 Ra1b1
Qb2c2 Qh4g4+ Kg8h8 Rb1b3
14 03:47 0.55 Qe2xb2 Ng3f5 Be7a3 Ra1b1 Qb2e2 c3c4 Rd8d7 Qh4h3 Rd7d3
Rf1e1 Qe2xa2 Qh3g4 g7g6 Be3xb6
15 12:40 0.56 Qe2xb2 Ng3f5 Rf8f7 Qh4g4 Kg8h8 c3c4 Be7f8 Rf1b1 Qb2c3
Be3xb6 a7xb6 Rb1c1 Qc3a5 Rc1d1
4/2/2004 2:57:00 AM, Time for this analysis: 00:16:40, Rated time: 1:35:37
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