Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Crafty 17.7 @ 200M nps results

Author: Slater Wold

Date: 16:01:06 04/13/02

Go up one level in this thread


On April 13, 2002 at 16:24:05, Uri Blass wrote:

>On April 13, 2002 at 15:36:27, Slater Wold wrote:
>
>>On April 13, 2002 at 02:08:18, Slater Wold wrote:
>>
>>>[D]r2qk2r/pp3ppp/2p1pn2/4n3/1b6/3P2PP/PPPN1PB1/R1BQK2R b KQkq - 0 11
>>>
>>>In this position Deeper Blue found h5 in 121 seconds.  After Murray moved,
>>>Kasparov looked at him in disarray.  After the match, Kasparov said "Sometimes
>>>the computer plays very human moves."
>>>
>>>The power supply to my new machine has not arrived yet, so I can only test this
>>>move using Fritz 7.  It found h5 in 11:47 and played it through the 15th ply and
>>>over 20 minutes.  (On an AMD 1200mhz.)  This move (h5) has been confirmed by
>>>several masters to be the "best" move.  Can anyone get it faster?
>>>
>>>This is move 11 from game 5 of the 1997 match.
>>
>>
>>              clearing hash tables
>>              time surplus   0.00  time limit 855:00 (855:00)
>>         nss  depth   time  score   variation (1)
>>                5->   0.00  -0.12   1. ... O-O 2. O-O Nd5 3. c4 Nb6
>>                6     0.00  -0.27   1. ... O-O 2. O-O Bxd2 3. Bxd2 Qd4
>>                                    4. b4 Rad8
>>                6     0.00  -0.25   1. ... Qd6 2. f4 Ng6 3. c3 Bc5 4. Qe2
>>                6->   0.00  -0.25   1. ... Qd6 2. f4 Ng6 3. c3 Bc5 4. Qe2
>>                7     0.00  -0.19   1. ... Qd6 2. a3 Bc5 3. f4 Qd4 4. Ne4
>>                                    Ned7 5. Nxc5 Nxc5
>>                7->   0.00  -0.19   1. ... Qd6 2. a3 Bc5 3. f4 Qd4 4. Ne4
>>                                    Ned7 5. Nxc5 Nxc5
>>                8     0.00  -0.37   1. ... Qd6 2. O-O O-O-O 3. d4 Ng6 4.
>>                                    c3 Ba5 5. b4
>>                8     0.01  -0.35   1. ... Qc7 2. a3 Bd6 3. O-O O-O-O 4.
>>                                    d4 Ng6 5. Qe2
>>                8->   0.03  -0.35   1. ... Qc7 2. a3 Bd6 3. O-O O-O-O 4.
>>                                    d4 Ng6 5. Qe2
>>                9     0.03  -0.19   1. ... Qc7 2. O-O O-O-O 3. Qe2 Kb8
>>                                    4. Re1 Bd6 5. a4 Nd5
>>                9->   0.06  -0.19   1. ... Qc7 2. O-O O-O-O 3. Qe2 Kb8
>>                                    4. Re1 Bd6 5. a4 Nd5
>>               10     0.06  -0.28   1. ... Qc7 2. O-O O-O-O 3. a3 Bd6 4.
>>                                    Qe2 Kb8 5. d4 Ng6 6. Qc4
>>               10->   0.17  -0.28   1. ... Qc7 2. O-O O-O-O 3. a3 Bd6 4.
>>                                    Qe2 Kb8 5. d4 Ng6 6. Qc4
>>               11     0.21  -0.26   1. ... Qc7 2. O-O O-O-O 3. d4 Ng6 4.
>>                                    a4 Kb8 5. Nc4 Rd7 6. Bg5 Rhd8
>>               11->   0.41  -0.26   1. ... Qc7 2. O-O O-O-O 3. d4 Ng6 4.
>>                                    a4 Kb8 5. Nc4 Rd7 6. Bg5 Rhd8
>>               12     0.69  -0.26   1. ... Qc7 2. O-O h5 3. Ne4 O-O-O 4.
>>                                    Qe2 Kb8 5. a4 h4 6. Nxf6 gxf6 <HT>
>>               12->   1.38  -0.26   1. ... Qc7 2. O-O h5 3. Ne4 O-O-O 4.
>>                                    Qe2 Kb8 5. a4 h4 6. Nxf6 gxf6 <HT>
>>               13     3.19  -0.26   1. ... Qc7 2. Qe2 h5 3. d4 Bxd2+ 4.
>>                                    Bxd2 Ng6 5. O-O-O O-O-O 6. c3 Kb8 7.
>>                                    Kb1 h4 8. Qd3 <HT>
>>               13->   5.34  -0.26   1. ... Qc7 2. Qe2 h5 3. d4 Bxd2+ 4.
>>                                    Bxd2 Ng6 5. O-O-O O-O-O 6. c3 Kb8 7.
>>                                    Kb1 h4 8. Qd3 <HT>
>>               14     9.01  -0.20   1. ... Qc7 2. a3 Bd6 3. Nb3 h5 4. Be3
>>                                    h4 5. gxh4 Ng6 6. h5 Nf4 7. Qf3 O-O-O
>>                                    8. Bxa7 Nxg2+ 9. Qxg2 Nxh5
>>               14    18.38  -0.18   1. ... h5 2. Qe2 Qc7 3. a3 Bd6 4. Ne4
>>                                    Nxe4 5. Qxe4 O-O-O 6. b4 f5 <HT>
>>               14->  19.48  -0.18   1. ... h5 2. Qe2 Qc7 3. a3 Bd6 4. Ne4
>>                                    Nxe4 5. Qxe4 O-O-O 6. b4 f5 <HT>
>>               15    26.03  -0.19   1. ... h5 2. Qe2 Qc7 3. a3 Bd6 4. Ne4
>>                                    Nxe4 5. Qxe4 Ng6 6. Qe3 h4 7. Be4 f5
>>                                    8. Bf3 hxg3 9. Qxe6+ Qe7
>>               15->  49.01  -0.19   1. ... h5 2. Qe2 Qc7 3. a3 Bd6 4. Ne4
>>                                    Nxe4 5. Qxe4 Ng6 6. Qe3 h4 7. Be4 f5
>>                                    8. Bf3 hxg3 9. Qxe6+ Qe7
>>               16     1:44  -0.13   1. ... h5 2. Qe2 Qc7 3. a3 Be7 4. Ne4
>>                                    O-O-O 5. Be3 Nd5 6. Bxa7 b6 7. f4 Nd7
>>                                    8. Bxb6 Qxb6 9. c3
>>               16->   3:01  -0.13   1. ... h5 2. Qe2 Qc7 3. a3 Be7 4. Ne4
>>                                    O-O-O 5. Be3 Nd5 6. Bxa7 b6 7. f4 Nd7
>>                                    8. Bxb6 Qxb6 9. c3
>>               17     3:14   1/48   1. ... h5
>>
>>
>>Crafty 17.7 @ 700k nps found it in 85:25.
>
>The question is if Qc7 is worse than h5.
>
>Crafty had h5 in the main line when it wanted to play Qc7 and
>the difference at depth 14 is only 0.02 pawns.
>
>Uri

As I said, several masters, including Kasparov himself said h5 was the better
move here.  I am going by what they said.  I don't think I am in a position to
disagree with them.



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.