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Subject: Re: Other peoples thoghts on this?

Author: Mike Byrne

Date: 12:02:01 07/17/04

Go up one level in this thread


On July 17, 2004 at 13:12:38, Drexel,Michael wrote:

>On July 17, 2004 at 10:50:04, Robert Hyatt wrote:
>
>>On July 17, 2004 at 01:39:09, Graham Banks wrote:
>>
>>>That sounds horrible.  No pondering.
>>>
>>>
>>>Yes, I'm really hoping that one day I'll be able to own a dual processor machine
>>>as I'd much prefer to use ponder on. Crafty definitely performs much better with
>>>ponder on in comparison to other programs.
>>>Still, beggars can't be choosers!
>>>Graham.
>>
>>
>>That wasn't my point.  Mike or someone said the adapter sends a "new" command
>>for each move.  that will (a) kill any pondering;  (b) clear the hash table
>>before each move making it impossible to pass things along from one search to
>>another;  (c) slow the search by clearing the pawn hash, making it necessary to
>>do lots of extra pawn evaluations;  etc...
>
>Seems correct.
>I just startet a game against Crafty 19.15 in the Fritz GUI.
>The Wb2uci logfile has only 2 "new" commands at the start of the game but with
>logfile enabled I got 10 logfiles in the Crafty directory.
>For example:
>
>White(1): post
>White(1): hard
>pondering enabled.
>White(1): computer
>playing a computer!
>White(1): level 0 4 0
>White(1): force
>White(1): d4
>Black(1): d5
>White(2): c4
>Black(2): c6
>White(3): Nf3
>Black(3): Nf6
>White(4): Nc3
>Black(4): Be6
>White(5): cxd5
>Black(5): Bxd5
>White(6): e3
>Black(6): e6
>White(7): Bd3
>Black(7): Bxf3
>White(8): Qxf3
>Black(8): Be7
>White(9): O-O
>Black(9): O-O
>White(10): Bd2
>Black(10): Qa5
>White(11): Ne4
>Black(11): Qc7
>White(12): Nxf6+
>Black(12): Bxf6
>White(13): Rac1
>Black(13): Nd7
>White(14): time 27100
>White(14): otim 26198
>White(14): go
>              clearing hash tables
>              time limit 6.77 (47.39)
>              depth   time  score   variation (1)
>                6->   0.10   0.86   14. Bb4 Rfd8 15. Qh5 g6 16. Qf3 Bg7
>                7     0.17   0.77   14. Bb4 Rfd8 15. Qh5 g6 16. Qf3 a5
>                                    17. Bd2
>                7     0.65   0.83   14. Qh3 g6 15. Be4 Be7 16. Qh6 Nf6
>                                    17. Bd3
>                7->   0.74   0.83   14. Qh3 g6 15. Be4 Be7 16. Qh6 Nf6
>                                    17. Bd3
>                8     0.94   0.74   14. Qh3 g6 15. Qg4 Be7 16. e4 Nf6 17.
>                                    Qf4 Qxf4 18. Bxf4
>                8     1.37   0.81   14. Qe4 g6 15. Qf3 Qd6 16. Be4 Be5
>                                    17. h3 Bh2+ 18. Kh1 Be5 19. Kg1
>                8->   2.09   0.81   14. Qe4 g6 15. Qf3 Qd6 16. Be4 Be5
>                                    17. h3 Bh2+ 18. Kh1 Be5 19. Kg1
>                9     4.41   0.75   14. Qe4 g6 15. a4 Be7 16. b4 Rad8 17.
>                                    b5 Ba3 18. Rc4 Nf6
>                9     5.05   0.77   14. Qh3 g6 15. f4 Rfd8 16. Qg4 Be7
>                                    17. Rfe1 Nf6 18. Qg5
>              time=7.89  cpu=95%  mat=0  n=8738682  fh=93%  nps=1.11M
>              ext-> chk=200169 cap=19552 pp=5035 1rep=29979 mate=1857
>              predicted=0  nodes=8738682  evals=1772393  50move=2
>              endgame tablebase-> probes=0  hits=0
>White(14): Qh3
>              time used:   7.89
>
>       +---+---+---+---+---+---+---+---+
>    8  |<R>| . |   | . |   |<R>|<K>| . |
>       +---+---+---+---+---+---+---+---+
>    7  |<P>|<P>|<Q>|<N>| . |<P>|<P>|<P>|
>       +---+---+---+---+---+---+---+---+
>    6  |   | . |<P>| . |<P>|<B>|   | . |
>       +---+---+---+---+---+---+---+---+
>    5  | . |   | . |   | . |   | . |   |
>       +---+---+---+---+---+---+---+---+
>    4  |   | . |   |-P-|   | . |   | . |
>       +---+---+---+---+---+---+---+---+
>    3  | . |   | . |-B-|-P-|   | . |-Q-|
>       +---+---+---+---+---+---+---+---+
>    2  |-P-|-P-|   |-B-|   |-P-|-P-|-P-|
>       +---+---+---+---+---+---+---+---+
>    1  | . |   |-R-|   | . |-R-|-K-|   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>Black(14): g6 [pondering]
>              time limit 6.57 (45.99)
>              depth   time  score   variation (8)
>                8     0.25   0.70   15. f4 Rfd8 16. b4 Rac8 17. Be4 Bg7
>                                    18. Qg4 Nb6
>                8     1.05   0.72   15. a4 Rfd8 16. a5 Be7 17. Rfd1 a6
>                                    18. Be4 Nf6
>                8->   1.55   0.72   15. a4 Rfd8 16. a5 Be7 17. Rfd1 a6
>                                    18. Be4 Nf6
>                9     5.05   0.69   15. a4 Rad8 16. Rfe1 Rfe8 17. a5 Ne5
>                                    18. Be4 Be7 19. Qh6
>Black(14): time 26500
>time remaining:   4:25 (crafty).
>Black(14): otim 25873
>time remaining:   4:18 (opponent).
>Black(14): g6
>predicted move made.
>                9     7.20   0.71   15. f4 Rfd8 16. a4 Be7 17. b4 Nb6 18.
>                                    a5 Nd5 19. b5
>              time=7.20  cpu=92%  mat=0  n=7516770  fh=92%  nps=1.04M
>              ext-> chk=109651 cap=20583 pp=2234 1rep=27145 mate=20
>              predicted=1  nodes=7516770  evals=1895210  50move=3
>              endgame tablebase-> probes=0  hits=0
>              time used:   5.38
>White(15): f4
>              time used:   1.86
>
>       +---+---+---+---+---+---+---+---+
>    8  |<R>| . |   | . |   |<R>|<K>| . |
>       +---+---+---+---+---+---+---+---+
>    7  |<P>|<P>|<Q>|<N>| . |<P>| . |<P>|
>       +---+---+---+---+---+---+---+---+
>    6  |   | . |<P>| . |<P>|<B>|<P>| . |
>       +---+---+---+---+---+---+---+---+
>    5  | . |   | . |   | . |   | . |   |
>       +---+---+---+---+---+---+---+---+
>    4  |   | . |   |-P-|   |-P-|   | . |
>       +---+---+---+---+---+---+---+---+
>    3  | . |   | . |-B-|-P-|   | . |-Q-|
>       +---+---+---+---+---+---+---+---+
>    2  |-P-|-P-|   |-B-|   | . |-P-|-P-|
>       +---+---+---+---+---+---+---+---+
>    1  | . |   |-R-|   | . |-R-|-K-|   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>Black(15): Rfd8 [pondering]
>              time limit 6.57 (45.99)
>              depth   time  score   variation (8)
>                8     0.32   0.68   16. a4 a5 17. b3 Bg7 18. Qg4 Nf6 19.
>                                    Qg5 Nd5
>                8     0.94   0.69   16. b4 Rac8 17. a4 Bg7 18. Qg4 Nb6
>                                    19. a5 Nd5
>                8->   1.29   0.69   16. b4 Rac8 17. a4 Bg7 18. Qg4 Nb6
>                                    19. a5 Nd5
>                9     2.25   0.71   16. b4 a6 17. Qg4 Bg7 18. a4 Nf6 19.
>                                    Qh3 Nd5 <HT>
>                9->   4.08   0.71   16. b4 a6 17. Qg4 Bg7 18. a4 Nf6 19.
>                                    Qh3 Nd5 <HT>
>               10     6.01   0.72   16. b4 a6 17. Rf3 e5 18. fxe5 Nxe5
>                                    19. Rxf6 Nxd3 20. Rcf1 Rd7 21. Qg4
>               10->  12.33   0.72   16. b4 a6 17. Rf3 e5 18. fxe5 Nxe5
>                                    19. Rxf6 Nxd3 20. Rcf1 Rd7 21. Qg4
>               11    29.51   0.69   16. b4 Qd6 17. Be4 Bg7 18. a3 Rac8
>                                    19. a4 Nf6 20. Bd3 Nd5 21. Rc5
>               11->  56.41   0.69   16. b4 Qd6 17. Be4 Bg7 18. a3 Rac8
>                                    19. a4 Nf6 20. Bd3 Nd5 21. Rc5
>               12     1:13   0.67   16. b4 Qd6 17. a4 Nb6 18. a5 Nd5 19.
>                                    Rc5 b6 20. Rc4 Rd7 21. a6 Rad8
>Black(15): quit
>LearnBook() executed


the adapter does send a new command with every move under Fritz GUI, I have
captured this is the winboard2uci log and it is also evidenced by all the log
files - they are created because Crafty is receiving a "new" command with every
move ...this does NOT happen under Arena as a UCI engine using the adapter ...I
think your post after this shows the wb2uci log and it does show a new command
with every move



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