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Subject: Re: Kasparov vs Deep Blue, DIEP not as bad as DeepBlue

Author: Robert Hyatt

Date: 10:32:31 10/30/01

Go up one level in this thread


On October 30, 2001 at 07:24:39, Vincent Diepeveen wrote:

>46:04 0 0 327781499 (111597415) 14 -0.078 Bh5-g6 Nf1-d2 Qb6-c7 a3-a4 Kg8-h7 Ne3-
>c4 Nd7-b6 Nc4xa5 Bc5-b4 c2-c3 Bb4xa5 b3-b4 Nb6-d7 b4xa5 Nd7-c5 h3-h4
>
>Diep doesn't consider the bad move g5-g4.
>




Diep also doesn't _understand_ the position.  It thinks black is worse by
a very tiny bit. (-.078).  That is a strong _understatement_ here.  Black is
nearly losing.

>
>For those who tactical mistakes that's definitely true. For GMs that's not
>exactly true though. They got their GM because they can play a perfect game!
>



I have _never_ seen a GM play a "perfect game"...


>>ChessMaster 8000 output:
>>
>>Time	Depth	Score	Positions	Moves
>>0:00	1/3	-0.04	2059		1...Bd4 2. Nd2 Bg6
>>0:00	2/6	0.02	42104		1...Bd4 2. Nd2 Bg6 3. c3 Bc5 4.
>>					Qc2 Nf8
>>0:01	3/7	0.16	124547		1...Bd4 2. Nd2 Bg6 3. c3 Bc5 4.
>>					Qc2 Nf8 5. Ndc4
>>0:03	3/7	0.09	268740		1...g4 2. h4 Bg6 3. Qd2 Nf8 4.
>>					Qe2 a4 5. Nd2 Bxe3 6. fxe3 axb3
>>					7. cxb3
>>0:06	3/8	0.10	598533		1...g4 2. Nd2 gxh3 3. Bxh3 Qc7
>>					4. c4 Bd4 5. Nf5 Nc5 6. Nxh6+ Kg7
>>0:10	3/8	0.02	981004		1...Bg6 2. Nd2 Qc7 3. Bc3 b5 4.
>>					b4 Bd4 5. Qb2
>>0:18	4/9	0.15	1798706		1...Bg6 2. Nd2 Qc7 3. Bc3 Bd4 4.
>>					Qb2 Nb6 5. Rad1 Bxc3 6. Qxc3
>>1:10	4/10	0.14	6627204		1...Bg6 2. Nd2 Qc7 3. Bc3 Bd4 4.
>>					Qb2 Nb6 5. Rad1 Qe7 6. Nf5 Bxf5
>>					7. exf5 Bxc3 8. Qxc3
>>4:05	5/11	0.11	24328715	1...Bg6 2. Nd2 Qc7 3. Qd1 Bd4 4.
>>					c3 Ba7 5. b4 Nb6 6. Qe2 Qd6 7.
>>					Nec4 Nxc4 8. Nxc4
>>14:02	6/12	0.03	88355386	1...Bg6 2. Nd2 Qc7 3. Bc3 Bd4 4.
>>					Qb2 Nc5 5. Nf5 Bxf5 6. exf5 Qd7
>>					7. b4 Bxc3 8. Qxc3 Qxd2 9. Qxc5
>
>>I suspect that more interesting would be the analysis of these:
>>
>[D]3rr1k1/1p1n1p2/1qp2n1p/p1b1p2b/4P1p1/PP2N1PP/1BP2PB1/R1Q1RNK1 w - -
>position after g4?
>
>DIEP sees this as advantage for white directly from the start:
>
>00:00 0 0 56 (0) 1 0.622 h3xg4 Bh5xg4
>00:00 0 0 75 (0) 1 0.654 Ne3-f5
>00:00 0 0 1065 (0) 2 -2.149 Ne3-f5 Bc5xf2 Kg1-h2 Bf2xe1 Qc1xe1
>++ h3-g4
>00:00 0 0 1133 (0) 2 0.622 h3xg4 Bh5xg4
>00:00 0 0 2459 (173) 3 1.325 h3xg4 Bc5xe3 Nf1xe3 Bh5xg4
>00:00 0 0 6277 (363) 4 0.506 h3xg4 Bh5-g6 b3-b4 a5xb4 a3xb4 Bc5xb4
>00:00 0 0 25704 (5654) 5 0.966 h3xg4 Bh5-g6 g4-g5 h6xg5 Ne3-c4
>00:00 0 0 56414 (11138) 6 0.462 h3xg4 Nf6xg4 Ne3xg4 Bh5xg4 Nf1-e3 Nd7-f6
>00:02 0 0 204394 (48885) 7 0.460 h3xg4 Nf6xg4 Ne3xg4 Bh5xg4 Nf1-e3 h6-h5 Ne3xg4
>h5xg4
>++ f1-d2
>00:03 0 0 343021 (86294) 7 0.696 Nf1-d2 Qb6-a7 b3-b4 Bc5-f8 Ne3-f5 a5-a4 Nd2-c4
>
>00:05 0 0 512604 (116944) 8 0.400 Nf1-d2 Qb6-a7 Nd2-c4 g4xh3 Bg2xh3 Kg8-f8 Bb2-c
>3 b7-b6
>++ h3-g4
>00:07 0 0 730577 (186296) 8 0.548 h3xg4 Bh5-g6 b3-b4 a5xb4 a3xb4 Bc5xb4 Ne3-c4 Q
>b6-c5 Qc1xh6 Qc5xc4
>00:25 0 0 2731856 (750383) 9 0.294 h3xg4 Nf6xg4 Bg2-h3 Ng4xe3 Nf1xe3 Nd7-f6 Kg1-
>g2 Bc5xe3 Qc1xe3 Qb6xe3 Re1xe3
>++ f1-d2
>00:33 0 0 3643383 (1015766) 9 0.506 Nf1-d2 Qb6-a7 Bb2-c3 a5-a4 b3xa4 Kg8-f8 h3-h
>4 Bc5-d4 Qc1-b2 Qa7xa4 Bc3xd4 e5xd4 Qb2-b4 Qa4xb4 a3xb4
>01:07 0 0 7402451 (2116658) 10 0.291 Nf1-d2 Qb6-a7 b3-b4 Bc5xe3 Re1xe3 g4xh3 Bg2
>xh3 Kg8-f8 b4xa5 Nf6-g4
>++ b2-c3
>02:16 0 0 15253229 (3679456) 10 0.341 Bb2-c3 g4xh3 Bg2xh3 Bh5-f3 Nf1-d2 Nf6xe4 B
>c3xa5 Qb6xa5 Nd2xf3 Kg8-f8 a3-a4
>++ f1-h2
>02:40 0 0 17870834 (4220380) 10 0.354 Nf1-h2 g4xh3 Bg2xh3 Bh5-g6 Bh3xd7 Nf6xd7 N
>h2-g4 h6-h5 Ng4-h6 Kg8-f8 Nh6-f5 Nd7-f6
>++ a3-a4
>03:50 0 0 25753917 (6499422) 11 0.354 Nf1-h2 g4xh3 Bg2xh3 Bh5-g6 Bh3xd7 Nf6xd7 N
>h2-g4 h6-h5 Ng4-h6 Kg8-f8 Nh6-f5 Nd7-f6
>++ b2-c3
>++ f1-d2
>06:18 0 0 42810178 (7893075) 11 0.437 Nf1-d2 Qb6-a7 b3-b4 Bc5xe3 Re1xe3 g4xh3 Bg
>2xh3 Nf6-g4 Bh3xg4 Bh5xg4 Nd2-c4 a5-a4
>11:29 0 0 76993736 (11384648) 12 0.437 Nf1-d2 Qb6-a7 b3-b4 Bc5xe3 Re1xe3 g4xh3 B
>g2xh3 a5-a4 Nd2-c4 Kg8-f8 Bh3xd7 Nf6-d5
>
>[D]3rr1k1/1p1n1p2/1qp2nbp/p1b1p1p1/4P3/PP2N1PP/1BP2PB1/R1Q1RNK1 w - -
>position after Bg6
>
>Obviously the scores here are the same like the first output produced where
>diep planned to play Bg6


Not exactly.  You were at -.078.  That has changed although your score is
far from "stable" here...  It is going up and down significantly, every
iteration...




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