I am looking for an UCI compatible engine with an ELO of less than 1800. Not a version of Houdini or Stockfish with an ELO of 1800. I want a engine with a real ELO rating of 1800 or less. If you can help me with links, that would be great.

  • 1
    You may want to have a look here: computerchess.org.uk/ccrl/404 and here: computerchess.org.uk/ccrl/4040 On the 40 moves in 40 minutes list there is only one engine with an Elo of less than 1800: Ziggurat 0.18 64-bit, with an Elo of 1786. (But I'm not totally sure these Elo ratings can be accurately compared to human FIDE Elo ratings.)
    – Fate
    Commented Aug 10, 2014 at 15:22
  • There is also the famous program Chess Titans, which has a rating of around 1700 Elo on level 10. (Chess Titans is included in Windows Vista and Windows 7, but not in Windows 8.)
    – Fate
    Commented Aug 10, 2014 at 15:29
  • Chess Titans is handicapped, I think. It has several times exchanged a queen for a rook for almost no advantage.
    – MikhailTal
    Commented Aug 10, 2014 at 15:34
  • Really? On level 10? I played a lot of games against it and it never made such blunders on level 10.
    – Fate
    Commented Aug 10, 2014 at 15:42
  • Well, it has happened only once to me. I won that game, but maybe I might have had a checkmate I hadn't noticed or something.
    – MikhailTal
    Commented Aug 10, 2014 at 15:43

4 Answers 4


Take a look at numpty. It claims to have a ELO of about 1500-1800. I've played it on FICS before and it usually has a blitz rating of 1900-2100. Note that FICS ratings are usually horribly skewed by all the cheating that happens on there.


Adam Hair has a rating list for weaker engines:


Grizzly and Chenard are UCI, but a lot of the weaker engines tend to be CECP.


Actually, on the CCRL 40/4 there're around 170 engines under 1800, not just a dozen. You can also check this list based on bullet games: http://e4e6.com/ratings.php?id=1001 Most of the engines work properly, especially at long time controls. Almost all of them are still available on the Internet, just Google them.



There is an engine called Delfi made by msb software. It is designed to play at lower ratings but also to play more like a human amateur. It is commercial, not free but I think there is a free version with some limitations.

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