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13 votes
Accepted

Is Houdini 6 a Stockfish clone?

Yes. The search, evaluation, etc., are almost identical to Stockfish, with the notable exception of being rewritten in Dutch. A number of Stockfish developers, including former maintainers, have ...
Aaron Williams's user avatar
10 votes

What relative point values of pieces do engines use?

Rybka/Komodo/Houdini are not open source and their values aren't readily available, but the current strongest conventional engine, Stockfish, uses these values (lines 194-198): PawnValueMg = 126, ...
Allure's user avatar
  • 28.3k
7 votes

Can a human defeat an engine in a 10-game match if he is given the White pieces and draw odds in every game?

No. Chess computers are now fantastically strong. To put things in perspective: In 2006, then undisputed world champion Kramnik lost a match against Deep Fritz. Four years later, in 2010, Deep Fritz ...
Allure's user avatar
  • 28.3k
5 votes

Is Houdini 6 a Stockfish clone?

Looks like the answer to the title question is "yes". Stockfish sued Chessbase (a distributor of Houdini) for violation of GPL, and in the settlement, Chessbase concedes that they "used ...
Allure's user avatar
  • 28.3k
4 votes
Accepted

Was there a bug in Stockfish similar to the bug in Houdini 6.02?

Reviewing the Stockfish Issues/Bugs and commits & Releases on GitHub https://github.com/mcostalba/Stockfish/releases/ would indicate that this has not been logged as an issue or a bug. In ...
Dheebs's user avatar
  • 2,462
4 votes

Is Houdini 6 a Stockfish clone?

I saw the code and there is no doubt that code was stolen form Stockfish Here's a small snippet that I saved. I no longer have the code since I found out it also includes code stolen from komodo ( ...
MikeB's user avatar
  • 161
4 votes

Is Houdini 6 a Stockfish clone?

The alleged source code might have been published online. I took a quick look into it, it looked like a valid strong chess engine. It was not a clone of Stockfish in the sense that the codebase was ...
SmallChess's user avatar
  • 22.6k
4 votes

Is Houdini 6 a Stockfish clone?

A user on talkchess.com (by the name of cucumber) claims to have come into possession of Houdini's source code, and has noted a number of similarities between it and Stockfish's source code. In ...
konsolas's user avatar
  • 3,196
3 votes

Can a human defeat an engine in a 10-game match if he is given the White pieces and draw odds in every game?

Let's see what happens if we just look at the math. According to the FIDE handbook, a rating difference of 422 points would mean the engine would get an average score of about 0.93 per game. ...
D M's user avatar
  • 19.9k
2 votes

Can a human defeat an engine in a 10-game match if he is given the White pieces and draw odds in every game?

Any top human would be annihilated under those conditions. Even a mobile phone can destroy any human in a ten game match even under those conditions. The only hope would be those conditions plus give ...
Danny's user avatar
  • 21
1 vote

Regarding Chessbase softwares

Chessbase is indeed just a database program, albeit a very powerful one. If Houdini doesn't already provide it then you will need some kind of front end to play games against it. One of the best free ...
Brian Towers's user avatar
  • 99.9k

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