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Jonny (Computer)
Number of games in database: 81
Years covered: 2004 to 2015
Overall record: +27 -29 =25 (48.8%)*
   * Overall winning percentage = (wins+draws/2) / total games.

Repertoire Explorer
Most played openings
D20 Queen's Gambit Accepted (4 games)
E12 Queen's Indian (4 games)
C43 Petrov, Modern Attack (3 games)
C45 Scotch Game (3 games)
D87 Grunfeld, Exchange (2 games)
D43 Queen's Gambit Declined Semi-Slav (2 games)
D45 Queen's Gambit Declined Semi-Slav (2 games)
D27 Queen's Gambit Accepted, Classical (2 games)
E15 Queen's Indian (2 games)
D00 Queen's Pawn Game (2 games)

   🏆 WCCC
   Jonny vs Komodo (Jul-01-15) 1-0
   Stockfish vs Jonny (Oct-29-14) 1-0

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[what is this?]

Its programmer is Johannes Zwanzger.

Wikipedia article: Jonny (chess)

Last updated: 2018-11-28 06:22:05

 page 1 of 4; games 1-25 of 81  PGN Download
Game  ResultMoves YearEvent/LocaleOpening
1. Jonny vs Deep Sjeng  1-0432004World Computer Chess ChampionshipE15 Queen's Indian
2. Jonny vs Deep Junior  ½-½442004World Computer Chess ChampionshipD48 Queen's Gambit Declined Semi-Slav, Meran
3. Crazy Bishop vs Jonny  0-1532004World Computer Chess ChampionshipE20 Nimzo-Indian
4. Jonny vs Shredder  ½-½482004World Computer Chess ChampionshipD20 Queen's Gambit Accepted
5. Falcon vs Jonny  1-0592004World Computer Chess ChampionshipB80 Sicilian, Scheveningen
6. Jonny vs IsiChess  1-0782004World Computer Chess ChampionshipD46 Queen's Gambit Declined Semi-Slav
7. Diep vs Jonny ½-½782004World Computer Chess ChampionshipD87 Grunfeld, Exchange
8. ParSOS vs Jonny 1-0392004World Computer Chess ChampionshipC44 King's Pawn Game
9. Movei vs Jonny ½-½502004World Computer Chess ChampionshipD17 Queen's Gambit Declined Slav
10. Jonny vs FIBChess 1-0222004World Computer Chess ChampionshipB12 Caro-Kann Defense
11. Woodpusher vs Jonny  ½-½952004World Computer Chess ChampionshipA13 English
12. Jonny vs Fruit 0-1792005WCCCD39 Queen's Gambit Declined, Ragozin, Vienna Variation
13. Zappa vs Jonny 1-0642005WCCCD00 Queen's Pawn Game
14. Shredder vs Jonny  1-0722005WCCCB65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4
15. Rybka vs Jonny 1-0212005Blitz:110'C69 Ruy Lopez, Exchange, Gligoric Variation
16. Jonny vs Neurologic 1-0332005IPCCC 15 PaderbornA29 English, Four Knights, Kingside Fianchetto
17. Fruit vs Jonny  ½-½732005Blitz:105'B30 Sicilian
18. Jonny vs Argonaut  ½-½652005IPCCC 15 PaderbornA89 Dutch, Leningrad, Main Variation with Nc6
19. Jonny vs Spike  0-1732005IPCCC 15 PaderbornA25 English
20. IsiChess vs Jonny  0-1442005IPCCC 15 PaderbornE12 Queen's Indian
21. Jonny vs SOS ½-½602005IPCCCD87 Grunfeld, Exchange
22. Zappa vs Jonny ½-½1602006WCCC 2006E19 Queen's Indian, Old Main line, 9.Qxc3
23. Uragano3D vs Jonny  0-1342006WCCC 2006B44 Sicilian
24. Jonny vs Spike  0-1412006WCCC 2006D45 Queen's Gambit Declined Semi-Slav
25. Jonny vs Chiron  1-0382006WCCC 2006E91 King's Indian
 page 1 of 4; games 1-25 of 81  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Jonny wins | Jonny loses  

Kibitzer's Corner
Premium Chessgames Member
  BishopBerkeley: Jonny (Computer) tied with Shredder (Computer) for first place in the FischerRandom or Chess960 competition at the World Computer Chess Championship 2005:

Only five of the twelve Chess engines competed in the Chess960 event. Even so, it's a nice prize to have!

(: ♗ Bishop Berkeley ♗ :)

Premium Chessgames Member
  ketchuplover: I thought Jonny was a prima donna. oh wait,I guess he is :)
Jun-07-06  Whitehat1963: Who's Johnny Lyrics
Artist: El Debarge
Album: Short Circuit Soundtrack

There she goes and knows I'm dying when she says "Who is Johnny?" Games with names that girl is playing, all she says is "Who is Johnny?" I tried to understand because I'm people too
And playing games is part of human nature
My heart's in overdrive, it's great to be alive

"Who's Johnny?" she said and smiled in her special way "Johnny," she said, "you know I love you"
"Who's Johnny" she said and tried to look the other way Her eyes gave her away
Alright, oh yeah

She makes sure I see her teasing, hear her say "Who is Johnny?" There's no way today is easy, hear her say "Who is Johnny?" I really couldn't help but fall in love with her
Her being there has made my life worth living
I knew it from the start, that I would lose my heart

"Who's Johnny?" She said and smiled in her special way "Johnny," she said, "you know I love you"
"Who's Johnny" she said and tried to look the other way still pretending
"Who's Johnny?"
"Who's Johnny?"
Wow-oooh, oh no
"Who's Johnny?"
"Who's Johnny?"
Oh no-no-no-no, i don't believe it
"Who's Johnny?" she said and tried to look the other way Her eyes gave her away

(Girls like her) Are very special girls
(Girls like her) Don't rest
'Till'Till you too are a believer
'Till you too have caught their fever

"Who is Johnny?"
There she goes and knows I'm dying when she says
"Who is-who-who is" "Who's Johnny?" She said and smiled in her special way "Johnny," she says, "you know I love you"
"Who's Johnny" she says and tried to look the other way Her eyes gave her away

"Who's Johnny?"
"Who's Johnny?"
"Who's Johnny?"

"Who's Johnny?"
"Who's Johnny?"
"Who's Johnny?"

"Who's Johnny?"
"Who's Johnny?"
"Who's Johnny?"
That girl's pretending she can't remember my name
"Who's Johnny?"
"Who's Johnny?"
Oh, i can't believe it

"Who's Johnny?"
"Who's Johnny?"
I know this girl is only teasing
"Who's Johnny?"
she said, She walked at me with someone else
And left me standing there, ooo-oooh
"Who's Johnny?"
"Who's Johnny?"
"Who's Johnny?"

"Who's Johnny?"
"Who's Johnny?"
"Who's Johnny?"
It isn't love...

"Who's Johnny?"
"Who's Johnny?"
"Who's Johnny?"
Johnny come with me
"Who's Johnny?"

Jun-07-06  Whitehat1963: What a HORRIBLE "song"!
Jun-07-06  THE pawn: -The shining:

« Heeeeerrreee's Johnny!»

Jul-22-09  Dredge Rivers: Jonny be mediocre! :)
Jul-02-15  truefriends: Jonny leads the WCCC 2015 after 7/9 rounds .5 points ahead of Komodo.

The last 2 rounds will be played today, July 3th.

Premium Chessgames Member
  tamar: Could Jonny be cheating?!!
Premium Chessgames Member
  AylerKupp: Given that Jonny is running on a system with 2,400 cores and that the engine with the next higher number of cores (Komodo) is running on a system with "only" 24 cores my biggest surprise is that Jonny has not won all its games and is only 1/2 point ahead of the field.
Premium Chessgames Member
  AylerKupp: Maybe I'm not surprised. The WCCC run by the ICGA stopped being meaningful some years ago.
Premium Chessgames Member
  tamar: Thanks for the explanation Ayler Kupp. I read earlier that Jonny was running on 2400 cores, but assumed it was a misprint.
Jul-03-15  mrandersson: A high‐performance computer at the University of Bayreuth, Germany, has been inaugurated during an elaborate ceremony.

The Bavarian state minister of science, research and art, Wolfgang Heubisch, and the Lord Mayor of the City of Bayreuth, Brigitte Merk‐Erbe, officially activated the system, named 'btrzx3', for its users.

Offering a performance of 97.6 teraflops, the HPC cluster is currently numbered among the world's highest-performance computers. It was developed and installed by the German manufacturer Megware.

Following on from 2005 and 2009, the Bavarian centre of higher education once again commissioned the supercomputer specialist Megware with the intention of delivering cutting‐edge, high‐performance technology.

The high‐performance computer, btrzx3, consists of a total of 12 server racks. It integrates 416 nodes, each consisting of two AMD Opteron 6348 2.8 GHz processors, and four four‐way servers. The computer nodes have 64GB or 128GB of RAM and are connected via a fast QDR InfiniBand network.With that kind of set up no real shock it did not lose a game.

Jul-04-15  Severin: So what does that mean, exactly? Jonny was running on a system that was 1000 times more powerful than anyone else's? So it won on hardware, not software?
Jul-05-15  Tomlinsky: It means that entrants may run their software on pretty much any hardware available, making the relative value of results completely worthless if the objective is to ascertain program strength.
Jul-06-15  mrandersson: There is a software part when each engine has the same model pc/laptop so its more fair in that way. Shredder won that part of it think they were all on a i7 cpu not sure what model number but an i7 is quite standard.

What would be good would to run on a low cpu like a pentium 3 no sse2 sse4 all that jazz basic dino stuff.

Premium Chessgames Member
  AylerKupp: <<Severin> So it won on hardware, not software?>

I would go as far to say that it won in spite of software. This is one of my favorite computer vs. computer games played a few years ago, Jonny vs Rybka, 2010, when Jonny (hosted on a system with 800 cores) was demolished by Rybka (hosted on a system with "only" 260 cores). And make sure that you watch what I think is one of <Kingcrusher>'s best videos,

Premium Chessgames Member
  AylerKupp: <<mrandersson> they were all on a i7 cpu not sure what model number but an i7 is quite standard.>

Actually, the i7 is anything but standard. First released in 2008, he following site,, lists 166 models (5 generations) for desktop and mobile applications, in standard, low, and ultra-low power versions and ranging from 2 to 8 cores, 500 MHz to 4 GHz clocks, 0.5 MB to 1.5 MB L2 cache sizes, 6 MB to 12 MB L3 cache sizes, and different instructions sets. So, needless to say, their performance varies considerably across the board and it's important to know the version if trying to compare chess engine (or any other software) performance.

But why do you think that it would be good to run the engines on a low-performance CPU? As long as the systems that the engines are running on have similar performance then you can make reasonable comparisons between the capabilities of the different engines. It doesn't really matter what the absolute performance of the computer system is.

Jul-11-15  offramp: Famous for its prophylactic qualities.
Jul-11-15  SatelliteDan: How did Microsoft FU so bad with win 8
Jul-11-15  SatelliteDan: Afraid of Apple
Jul-12-15  mrandersson: People still hate vista but tbh if you had a nice pc/laptop it was not all that bad really.

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