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Fruit (Computer)
  
Number of games in database: 28
Years covered: 2005 to 2008
Overall record: +14 -6 =8 (64.3%)*
   * Overall winning percentage = (wins+draws/2) / total games.

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C47 Four Knights (3 games)
B40 Sicilian (2 games)

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FRUIT (COMPUTER)
(born 2003)

[what is this?]

Its programmer is Fabien Letouzey. It is related to Cyclone (Computer). Fruit uses the "null move heuristic" in which all variations are pruned that stem from positions so strong for the player to move, that even if they "make a null move" ("pass" the move, which is of course illegal) still leaves that player with a substantially winning position. Special programming disables the null-move heuristic in situations where zugzwang may be relevant. (1).

Toga (Computer) is a modification of Fruit, using node extension recaptures only at principle variation nodes, multiprocessor support, and other features.(2)

(1) Wikipedia article: Null-move heuristic

(2) http://wbec-ridderkerk.nl/html/deta...

https://www.chessprogramming.org/Fr...

Wikipedia article: Fruit (software)

Last updated: 2018-12-03 08:27:58

 page 1 of 2; games 1-25 of 28  PGN Download
Game  ResultMoves YearEvent/LocaleOpening
1. Fruit vs The Baron  1-0582005WCCCC41 Philidor Defense
2. Jonny vs Fruit 0-1792005WCCCD39 Queen's Gambit Declined, Ragozin, Vienna Variation
3. Zappa vs Fruit 1-0752005WCCCD00 Queen's Pawn Game
4. Fruit vs IsiChess ½-½192005WCCCB51 Sicilian, Canal-Sokolsky (Rossolimo) Attack
5. Shredder vs Fruit  0-1942005WCCCB46 Sicilian, Taimanov Variation
6. Fruit vs Crafty 1-0462005WCCCC47 Four Knights
7. Fruit vs Crazy Bishop 1-0502005WCCCC47 Four Knights
8. Diep vs Fruit 1-0502005WCCCE37 Nimzo-Indian, Classical
9. Deep Sjeng vs Fruit 0-1732005WCCCB40 Sicilian
10. Junior vs Fruit 0-1452005WCCCB40 Sicilian
11. Fruit vs Fute  1-0452005WCCCC47 Four Knights
12. Zappa vs Fruit 1-01452005Blitz:5'A84 Dutch
13. Fruit vs IsiChess  ½-½1172005IPCCCA15 English
14. Fruit vs Jonny  ½-½732005Blitz:105'B30 Sicilian
15. SOS vs Fruit 0-1422005IPCCCB23 Sicilian, Closed
16. Ikarus vs Fruit  ½-½722005IPCCCD53 Queen's Gambit Declined
17. Fruit vs Neurologic 1-0522005IPCCCE97 King's Indian
18. Fruit vs Deep Gandalf  ½-½53200626th Dutch CCD38 Queen's Gambit Declined, Ragozin Variation
19. The Baron vs Fruit  0-159200626th Dutch CCD02 Queen's Pawn Game
20. The King vs Fruit  ½-½73200626th Dutch CCE55 Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation
21. Fruit vs Loop ½-½57200626th Dutch CCD48 Queen's Gambit Declined Semi-Slav, Meran
22. Rybka vs Fruit 1-049200626th Dutch CCD45 Queen's Gambit Declined Semi-Slav
23. Fruit vs XINIX  1-042200626th Dutch CCE12 Queen's Indian
24. HIARCS vs Fruit ½-½60200626th Dutch CCB47 Sicilian, Taimanov (Bastrikov) Variation
25. Fruit vs Ant 1-045200626th Dutch CCE19 Queen's Indian, Old Main line, 9.Qxc3
 page 1 of 2; games 1-25 of 28  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Fruit wins | Fruit loses  

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Jun-18-08  Swifty31: Thanks for the replys. I have played them a bunch now. Rybka and Fruit both crush Delphi, the other engine I have. But Fruit is at least equal to Rybka, in fact a little better from the tournaments on my machine. And Fruit is free to download, it used to be sold but now its free.
Jun-18-08
Premium Chessgames Member
  whiteshark: <Swifty31> I think these <engine ratings> based on special setups that vary (from the testing community). They all are a kind of clinical.

As for the lastest versions of Fruit check http://www.superchessengine.com/ every now and again. Recently it's Fruit 2.3.1.

Jul-09-08  Swifty31: I think I have figured out what I was doing wrong. Fruit seems to be using the Nalimov tablebases and Rybka wasnt accessing them, I turned them off for both to be fair, and Rybka started beating Fruit more and has taken the lead. Thanks for the link I will tryout the new fruit. Do you guys use opening books? I have them both using Arena's opening book, Rybka comes with a book but Arena cant open the book.
Jul-15-08  vesivialvy93: I have fruit 2.2.1 and chessmaster 10th edition (same computer), i don't understand why but in 10 games in 1 minute per move fruit destroyed CM10 +6-1=3 and in 10 blitz games 5 sec per move CM10 crushed fruit2.2.1 +8-2...Chessmaster looks incredibly strong in very short games , is someone can play CM9000 or 10th against Rybka in 3 or 5minutes game or with both in 5 seconds per move in average, not longer please thx!!
Aug-01-08  Swifty31: I have since posting this message purchased Deep Shredder 11 with Shredder gui, I have also bought a quad pc Vista 32 bit. In a 25 match with Rybka 2.3.2 A MP vs. Deep Shredder 11 I have the following match results Deep Shredder won 11 there were 8 draws and Rybka took 6 games. So Deep Shredder was stronger on my new PC. But I had to use the Shredder book for both programs, that may give Shredder the edge.

Against Fruit, Shredder won 14 games, 8 draws, and Fruit only won 3 games. Deep Shredder 11 is an animal!

Aug-01-08  Swifty31: Against Crafty 22, Deep Shredder ran the table with 19 wins and 6 draws. He also laid waste to my other two engines, Chess Tiger 2007, and Pro Deo 1.6.

Does anyone know the best version of Toga II for me to download? I would like a version that uses multiple processors. I want to pit Deep Shredder against it.

Aug-28-08  ILikeFruits: fruit...
makes me proud...
sniff sniff...
Nov-11-09  I Like Fish: fruit is sweet...
and fun to eat...
fruit salad is...
a wonderful treat...
Nov-13-09  ILikeFruits: hello fish...
indeed try...
a salted fruit...
it tastes like...
salted fruit...
Nov-13-09
Premium Chessgames Member
  moronovich: Thanks for clarifying.
I was afraid it tasted like ganja...
Nov-13-09  ILikeFruits: ganja is...
an ambrosia...
the most...
sacred...
Nov-15-09  I Like Fish: wobbly jelly...
is yummy...
too...
Nov-15-09  ILikeFruits: indeed...
Dec-14-09  ILikeFruits: 1000

1000

1000

Dec-14-09  Raisin Death Ray: Has a fierce rivalry with Vegetable!
Dec-14-09  ILikeFruits: yes...
Dec-15-09  ILikeFruits: hello...
May-26-10  myschkin: . . .

User: ILikeFruits

hope you're fine mister! greetings

Jun-30-10  ILoveFruits: who is...
ilikefruits...
certainly not...
i...
or is it...
greetings myschkin...
Jan-08-15  Everyone: If tomatoes are <fruit>, isn't ketchup technically a smoothie?
Jan-08-15
Premium Chessgames Member
  WannaBe: I'm voting for you in 2016.
Mar-18-15  I Like Fish: i did not come here to eat fruit...
Aug-29-15  SpiritedReposte: Well this page's kibitzing took a turn didn't it?
Dec-29-15  Flipboard Newsstand: Fruit got some sweet moves back in the day.
Dec-29-15  Hobo Erectus: The Fruit had a nasty bug during its alpha days and could only be run as an admin. When old Fruit is run with admin privileges, the "all-seeing eye" algorithm is activated.
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