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Shredder (Computer)
Number of games in database: 237
Years covered: 1996 to 2014
Overall record: +107 -45 =85 (63.1%)*
   * Overall winning percentage = (wins+draws/2) / total games
      Based on games in the database; may be incomplete.

Repertoire Explorer
Most played openings
B90 Sicilian, Najdorf (14 games)
C45 Scotch Game (8 games)
B97 Sicilian, Najdorf (8 games)
C67 Ruy Lopez (5 games)
E49 Nimzo-Indian, 4.e3, Botvinnik System (5 games)
E52 Nimzo-Indian, 4.e3, Main line with ...b6 (4 games)
B92 Sicilian, Najdorf, Opocensky Variation (4 games)
D20 Queen's Gambit Accepted (4 games)
D45 Queen's Gambit Declined Semi-Slav (4 games)
E12 Queen's Indian (4 games)

RECENT GAMES:
   Critter vs Shredder (Apr-29-14) 1-0
   Shredder vs Gull (Mar-25-13) 1/2-1/2
   Shredder vs Komodo (Mar-19-13) 0-1
   Shredder vs Hannibal (Mar-16-13) 1/2-1/2
   Shredder vs Vitruvius (Mar-14-13) 1/2-1/2

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SHREDDER (COMPUTER)

[what is this?]
The program is authored by Stefan Meyer-Kahlen, Eiko Bleicher and Ingo Bauer and one of its operators is Ernst Walet. Between 2002-5, it was the World Computer Speed Chess Champion, and regained the title in 2007.

References: (1) https://itunes.apple.com/ca/app/shr... (iTunes/AppStore), (2) http://www.shredderchess.com/


 page 1 of 10; games 1-25 of 237  PGN Download
Game  ResultMoves Year Event/LocaleOpening
1. Ferret vs Shredder  1-055 1996 14th World Microcomputer Chess ChampionshipB17 Caro-Kann, Steinitz Variation
2. D Steinwender vs Shredder 1-017 1996 11th AEGON Human-Machine ChampionshipD00 Queen's Pawn Game
3. Ferret vs Shredder  ½-½70 1999 WCCC99C52 Evans Gambit
4. Shredder vs Junior  1-058 1999 WCCC99C86 Ruy Lopez, Worrall Attack
5. Shredder vs Ferret  ½-½101 1999 9th World Computer Chess ChampionshipA29 English, Four Knights, Kingside Fianchetto
6. C Lutz vs Shredder  ½-½41 1999 WCCC99C80 Ruy Lopez, Open
7. Shredder vs G Mittelman  1-036 2000 Israeli LeagueE62 King's Indian, Fianchetto
8. Shredder vs G Kaganskiy  ½-½49 2000 Israeli LeagueB17 Caro-Kann, Steinitz Variation
9. Neurologic vs Shredder  0-141 2000 IPCCCA15 English
10. Shredder vs Nimzo-8 1-031 2000 IPCCCA18 English, Mikenas-Carls
11. Shredder vs Diep  1-061 2000 IPCCCC92 Ruy Lopez, Closed
12. Shredder vs Fritz  ½-½104 2000 IPCCCE12 Queen's Indian
13. Junior vs Shredder  ½-½100 2000 IPCCCC97 Ruy Lopez, Closed, Chigorin
14. Gandalf vs Shredder  0-177 2000 IPCCCB21 Sicilian, 2.f4 and 2.d4
15. Shredder vs SOS 1-030 2000 IPCCC 000E39 Nimzo-Indian, Classical, Pirc Variation
16. V Golod vs Shredder  ½-½86 2000 Israeli LeagueE38 Nimzo-Indian, Classical, 4...c5
17. Shredder vs I Ben-Menachem  ½-½46 2000 Israeli LeagueD20 Queen's Gambit Accepted
18. E Shein vs Shredder  0-126 2000 Israeli LeagueB50 Sicilian
19. Shredder vs B Malisov  1-036 2000 Israeli LeagueE42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)
20. I Liflend vs Shredder 1-036 2000 Israeli LeagueA31 English, Symmetrical, Benoni Formation
21. Shredder vs Fritz  ½-½50 2000 WMCCCD14 Queen's Gambit Declined Slav, Exchange Variation
22. E Nemeth vs Shredder 1-016 2000 Blitz30'D53 Queen's Gambit Declined
23. Shredder vs Gambit Tiger 0-163 2001 Computer Chess Match TournamentE48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5
24. Shredder vs Gambit Tiger  1-075 2001 Computer Chess Match TournamentE49 Nimzo-Indian, 4.e3, Botvinnik System
25. Shredder vs Gambit Tiger  1-084 2001 Computer Chess Match TournamentE49 Nimzo-Indian, 4.e3, Botvinnik System
 page 1 of 10; games 1-25 of 237  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Shredder wins | Shredder loses  

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 9 OF 9 ·  Later Kibitzing>
Aug-14-06  Karpova: When will a new version of Eugen Varshavsky be released?
Oct-14-06  Loisp: Shredder7.04 - Fritz 5.32 4.5-1.5
in an engine match 10'+1'' under fritz6 interface on celeron D 2.8 GHz
Nov-10-06
Premium Chessgames Member
  twinlark:

What's the difference between an engine running a 100 hour 28 ply analysis on a given variation vs running consecutive 50 hour 26 ply (say) analyses? The second stint would be set to start say three moves into the variation under scrutiny?

Which approach would produce a more reliable outcome?

Nov-10-06  Plato: <twinlark> I'm no expert, but my understanding is that the second type of analyses (two consecutive 50 hour sessions) would be more productive. This is because of something known as the "horizon effect."

http://en.wikipedia.org/wiki/Horizo...

Nov-10-06
Premium Chessgames Member
  twinlark:

Thanks <Plato>. BTW Happy 1000th kibitz! Traditionally, this is celebrated around here at Beer.

Feb-01-07
Premium Chessgames Member
  twinlark: SOS

I'm having a problem with my single processor Shredder 10.

I've had to reinstal it (including once or twice after uninstalling it) and when the window pops up asking that the serial number be typed into the five-digit fields, it won't accept them as the "OK" button is greyed out no matter how many times I uninstal or reinstal. (I have registered it online.)

What happens then is that after about ten minutes, a sign pops up saying the serial number is invalid and a couple of minutes later the engine shuts down.

Does anyone know what's going on?

Feb-01-07
Premium Chessgames Member
  twinlark: It's OK, I've sought online support.
Feb-08-07
Premium Chessgames Member
  BishopBerkeley: The ShredderChess website now offers a daily Chess puzzle with three levels of difficulty:

http://www.shredderchess.com/daily-...

Google has included the daily ShredderChess puzzle into the items you can add to your personalized Google homepage:

http://www.google.com/ig/directory?...

http://www.google.com/ig?hl=en

Some very fine websites have offered "plug-ins" that can be added to ones personalized Google homepage. Perhaps <Chessgames.com> should confer with Google on offering the Game of the Day as a Google plug-in!

Just a thought....

(: ♗ Bishop Berkeley ♗ :)

Jun-07-07  get Reti: Has shredder only played 127 games? Is there any way I can see more?
Sep-09-07  minasina: Wikipediassa Chess_engine_rating_lists: http://en.wikipedia.org/wiki/Chess_...
Nov-26-07
Premium Chessgames Member
  WannaBe: Slight annoyance, whenever I start up my Shredder, and do some analysis with it, (usually with infinite analysis) it's slow...

I looked at my task manager, my System Idle is using 80% of the CPU, my Shredder is using 10% with the others going to misc. stuff.

I completely exit my Shredder program, restart it, now it's blazing fast, using 79% of the CPU with the rest going to misc. stuff...

Don't know why exactly, just annoying.

Nov-27-07  hitman84: <WannaBe>I haven't used Shredder but I have faced the problem with other UCI engines.

The problem might be with the hash table size. Does the documentation contain anything about the Hash table ? Its optimal size ? The hash table size and the position is related to each other for a fixed depth. Try experimenting with different hash sizes on your system.

Nov-27-07  Tomlinsky: <WannaBe> I've noticed that it takes a lttle time to settle down when loading its bitbases for the first time.
Nov-27-07  hitman84: I found this very helpful for setting an optimal hash table size.

http://www.chessbase.com/support/su...

Nov-27-07
Premium Chessgames Member
  WannaBe: Well, here is the 'cute' thing, I have .75 gigs of ram on my system, (it came with 256, and I added another 1/2 gig...)

The 'recommended' hash table size is 588 MB, and I did try to use 550 MB for a while, and it is slow! My hard drive goes nuts swapping files...

I lowered it to 400 MB and it doesn't swap as much, but first time running, it's slow (as I described earlier...). So I just exit the program, and restart it.

Mar-25-08  timhortons: [Event "ICC 3 2"]
[Site "Internet Chess Club"]
[Date "2008.03.25"]
[Round "-"]
[White "Matemastr"]
[Black "Habano"]
[Result "1/2-1/2"]
[ICCResult "Game drawn by repetition"]
[WhiteElo "3101"]
[BlackElo "2935"]
[Opening "Ruy Lopez: closed, Keres (...Nd7) defense"] [ECO "C96"]
[NIC "RL.23"]
[Time "07:16:10"]
[TimeControl "180+2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Nd7 12. d5 Nf6 13. b3 Bd7 14. Nbd2 g6 15. Nf1 Nh5 16. Bh6 Re8 17. N1h2 Bf8 18. Bg5 Be7 19. Bh6 Bf8 20. Bg5 Be7 21. Bh6 Game drawn by repetition
1/2-1/2 shredder 11 versus rybka 2.1 x 64

Jul-25-08  offtherook: Hey, a strong commercial chess program that works with Linux. Has anyone tried this program? What are your impressions of it?
Apr-19-10  topi: Does anyone knows the ELO of Fritz, deep Fritz and Shredder?
Jul-30-10  Xaurus: TCEC Tournament 1 has started.

http://home.halden.net/mordor/tcec/...
http://chessbomb.com/o/2010-tcec/

Apr-02-14  mrandersson: Does anybody know if shredder has stopped now? Last new engine was 2009 would be a shame if that was the case.

I never did buy number 12 but shredder 10 has been a great engine over the years

Nov-04-15
Premium Chessgames Member
  offramp: Did they ever reveal who was playing inside Shredder?
Nov-04-15
Premium Chessgames Member
  TheFocus: ,Did they ever reveal who was playing inside Shredder?>

The grandson of Harry Nelson Pillsbury.

Nov-04-15
Premium Chessgames Member
  tamar: Follow the paper trail.
Feb-08-16  scholes: Please somebody submit this amazing game to database

http://tcec.chessdom.com/archive.ph...

Two engines fighting not to draw each other with plethora of sacrifices and counter sacrifices.

Feb-08-16
Premium Chessgames Member
  AylerKupp: <scholes> Why don't you submit it?
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