Pro Deo (version 1.2) approximately 2700 ELO - Size 3.5 Mb
  • Download Pro Deo 1.2
  • After the download open the archive with WINZIP and double click SETUP.
  • To run PRO DEO you will need to announce the engine first.
    • Under Chessbase this means: Engine -> New UCI engine -> Browse -> RebelUCI.exe
    • Under ChessPartner do: Extra -> Engine Import Wizard -> Winboard engines -> Install -> ProDeo.exe
    • Under ARENA do: Engines -> New Engine -> UCI -> RebelUCI.exe
  • ARENA is freeware and can be downloaded here.

Author Note

  • PRO DEO is the freeware version of the former commercial REBEL chess program series. Because I retired from active competition and commerce I felt that offering a free version of my latest brainchild would be a nice gesture to all loyal REBEL customers who bought my program through all those years, 20 years to be precisely. Thank you so much!

  • Version 1.2 is definitely the last version, the software was already finished in March 2006 but other interests (summer ) distracted my attention to give it the final touch and release the thing.

    Ed Schröder
    Deventer, November 2006

What's New?

  • A somewhat stronger chess engine.
  • Complete rewrite of all the Personality settings in self-explainable natural language. Pro Deo was and will be the most tuneable chess engine out there and now it has been made much more easy than ever, see the REBEL.ENG script file in the PERSONAL folder. I challenge my beloved collegues to do a beter job, it is an issue for many computer chess lovers.
  • Rewrite of the Hash Table sizes. It's now possible to use a Hash Table up to 3GB.
  • In other words, Pro Deo is ready for future hardware, the job is done, it's how I want the program to be.

Known Problems

  • When you are playing eng-eng matches or auto232 make sure you limit the maximum number of moves else PRO DEO might play funny moves or worse crash.
    For ChessBase this means: Move Limit = 240
    For LokaSoft: Max Moves in Game = 160

  • Under ChessBase and perhaps other Interfaces such as Arena, ChessMaster, Winboard a time-control problem may or may not occur. Using the tournament time control make sure that time-control-1 is equal to time-control-2 and that you zero time-control-3. So: 40/2hr+40/2hr or 40/20+40/20. Doing otherwise it may happen PRO DEO will start moving instantly after move 41 for the rest of the game.

  • Check out the PRO DEO FAQ for more information.

  • Comments are welcome at the CCC forum.

Copyright Stuff

  • The PRO DEO chess engine and its components although distributed as freeware in no way might become subject to any form of commerce. Permission must be asked first.

  • The PRO DEO chess engine and its components come as is and can only be used as such. It's forbidden to change, add, delete any of its components and only can be distributed in original form.

  • Always check the matador website for the correct version.


      Chess program : Ed Schröder
      Opening Book : Jeroen Noomen
      UCI Interface : Odd Gunnar Malin
      Beta testers : Ernst-Jan Walet, Jeroen Noomen, Thorsten Czub, Andre van Ark.

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Computer Chess Links

  • Computer Chess Historic Pictures.
  • CCC The Number One Forum.
  • ChessUSA Reliable company to buy to your chess software.
  • ChessBase The Home of the famous Fritz.
  • ChessPartner The Home of Chess Tiger, Gandalf and others.
  • Kasparov-DeepBlue The Immortal Match of 1997.
  • Wikipedia 1992, first time a microcomputer, the Chessmachine Gideon 3.1 by Ed Schroeder, wins the 7th World Computer Chess Championship in front of mainframes, supercomputers and special hardware.
Copyright © 1984 - Ed Schröder
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