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REBEL (Computer)
Number of games in database: 102
Years covered: 1986 to 2001
Overall record: +47 -27 =28 (59.8%)*
   * Overall winning percentage = (wins+draws/2) / total games.

Repertoire Explorer
Most played openings
A00 Uncommon Opening (4 games)
D45 Queen's Gambit Declined Semi-Slav (3 games)
C10 French (3 games)
D00 Queen's Pawn Game (3 games)
B93 Sicilian, Najdorf, 6.f4 (3 games)
B06 Robatsch (3 games)
A07 King's Indian Attack (3 games)
C42 Petrov Defense (3 games)
D02 Queen's Pawn Game (3 games)
C45 Scotch Game (3 games)

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(born 1980) Netherlands

[what is this?]

First developed on a TRS-80, it is programmed by Ed Schröder, & Jeroen Noomen also assisted with its development. Later on, it changed its name to Gideon and ported to Mephisto (Computer) hardware devices, Microsoft DOS & Windows, & the Apple II. After having experienced commercial success, it is currently free, going by another name which it has currently adopted, the Pro Deo version. For a short time, TASC produced Ch M Gideon WK (Computer) as a small hardware unit for playing against REBEL (Computer) (aka Gideon) or The King (Computer) personalities, depending on which card was purchased. Chess Tiger (Computer) is a successor to some of its 11th major release version components.


Last updated: 2016-11-26 04:26:58

 page 1 of 5; games 1-25 of 102  PGN Download
Game  ResultMoves Year Event/LocaleOpening
1. Hitech vs REBEL  1-027 1986 ch-World COMPC33 King's Gambit Accepted
2. Plymate Roma vs REBEL  0-143 1987 17+12C56 Two Knights
3. Deep Thought vs REBEL  1-038 1989 Reno NACCCB17 Caro-Kann, Steinitz Variation
4. Deep Thought vs REBEL  1-052 1989 Edmonton WCCCB17 Caro-Kann, Steinitz Variation
5. Bronstein vs REBEL 1-046 1990 AEGON Den HaagB14 Caro-Kann, Panov-Botvinnik Attack
6. Gulko vs REBEL  1-050 1994 Fifth Harvard CupD00 Queen's Pawn Game
7. REBEL vs Yermolinsky  0-140 1994 Boston Harvard CupE11 Bogo-Indian Defense
8. REBEL vs Joel Benjamin  ½-½86 1994 10, Fifth Harvard CupB44 Sicilian
9. Shabalov vs REBEL 1-050 1994 Harvard CupB12 Caro-Kann Defense
10. Van der Wiel vs REBEL  1-041 1996 AEGON The Hague NEDC42 Petrov Defense
11. REBEL vs Yusupov  1-046 1997 Ischia blitz mD30 Queen's Gambit Declined
12. N Pinal vs REBEL  0-160 1997 SANTO DOMINGO,SAMANEL IIIC42 Petrov Defense
13. REBEL vs Yusupov  ½-½24 1997 Ischia rapid mC42 Petrov Defense
14. G S Hernandez vs REBEL  0-146 1997 SANTO DOMINGO,SAMANEL IIIA15 English
15. Yusupov vs REBEL  0-140 1997 Ischia blitz mD00 Queen's Pawn Game
16. REBEL vs Yusupov  1-024 1997 Ischia blitz mC15 French, Winawer
17. L Arzeno vs REBEL  1-038 1997 SANTO DOMINGO,SAMANEL IIIC92 Ruy Lopez, Closed
18. REBEL vs Yusupov  1-051 1997 Ischia rapid mA13 English
19. REBEL vs J Arciniegas  1-016 1997 SANTO DOMINGO,SAMANEL IIIC79 Ruy Lopez, Steinitz Defense Deferred
20. Yusupov vs REBEL 1-035 1997 Ischia blitz mD00 Queen's Pawn Game
21. Yusupov vs REBEL  1-040 1997 Ischia rapid mA45 Queen's Pawn Game
22. REBEL vs Yusupov  ½-½40 1997 Ischia rapid mA09 Reti Opening
23. F Cabrera vs REBEL  0-140 1997 SANTO DOMINGO,SAMANEL IIIA88 Dutch, Leningrad, Main Variation with c6
24. Yusupov vs REBEL  0-154 1997 Ischia blitz mA99 Dutch, Ilyin-Genevsky Variation with b3
25. REBEL vs R Akesson  1-036 1997 HaningeB43 Sicilian, Kan, 5.Nc3
 page 1 of 5; games 1-25 of 102  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | REBEL wins | REBEL loses  

Kibitzer's Corner
Premium Chessgames Member
  BishopBerkeley: The strong Chess program known as "Rebel" has been renamed: it is now "Pro Deo 1." According to this recent rating list, it is the strongest of the free UCI Chess engines:

It may be run under WinBoard, Arena, or most of the Chessbase interfaces. You may download it free of charge here:

(: ♗B :)

Jun-28-05  waddayaplay: I have submitted the game between Smyslov and Rebel played in April 2000. Should appear withing the next week :)
Jun-28-05  PawnOfTheDead: So this is who David Bowie was singing about.
Jun-28-05  csmath: Pro Deo is quite strong, it is very aggressive as well so it is a fun to play. At this point it is probably comparable to Fritz. Meaning it is as strong as Fritz and yet it is free. However there is no multicore/multiprocessor version which makes it significantly weaker on that kind of hardware.
Jul-01-05  waddayaplay: If anyone wants info on its match with Anand in 1998, go here
Dec-21-05  karlth: Is "Pro Deo 1" still the most "human" chess engine - as Rebel advertised itself?
Dec-23-05  EmperorAtahualpa: I have submitted the REBEL - Anand games to the database. I hope <> will put them up soon.
Dec-23-05  EmperorAtahualpa: I'm afraid that's just an advertisement slogan, <karlth>. You don't seriously expect a computer to imitate the human mind, do you?
Dec-23-05  karlth: No human as in human playing style.

Dec-23-05  EmperorAtahualpa: <karlth> That's what I meant.
Sep-11-08  sallom89: Can Rebel hold it against Rybka 3?
Feb-20-09  WhiteRook48: well, maybe he can REBEL against the match before it happens
Jun-19-09  Octal: It's just a rebel with no cause.
May-04-10  Raisin Death Ray: Has a bitter rivalry with Yank!
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