user4172: Is there a world-class chess engine that can be configured so that it equally likes to draw and win?
I imagine the engine would really like making exchanges, for example.
What would happen if you placed the engine against top-of-the-line Stockfish? If it would basically never lose, it would be strong evidence (but obviously, not a proof) that chess is a draw with perfect play.

user-1: Ubisoft's Chessmaster: Grandmaster Edition allowed users to play against computer personalities. One was described as being a drawmaster:

LOGAN
[RATING] 2561
[BIOGRAPHY]
  Logan is an English professor at a small, prestigious college in the 
   Northeast. As faculty advisor for the college chess team, he enjoys the 
   opportunity of playing against the bright young minds of his school and 
   helping shape the strengths and strategies of his protégés.
[STYLE]
  Logan is called the 'drawmaster'. His openings tend to be drawish and he will 
   often play for a draw even when ahead. He is rated at 2561.


user825: Stockfish, Houdini and Komodo (many other engines too) can all be configured like what you said. This is known as Contempt. In Komodo, the name is Drawscore (same thing). If you give enough negative value to the option, the engine will not push for a win even it sees it.

http://support.stockfishchess.org/kb/advanced-topics/engine-parameters

4172: <p>Is there a world-class chess engine that can be configured so that it equally likes to draw and win?</p>

<p>I imagine the engine would really like making exchanges, for example.</p>

<p>What would happen if you placed the engine against top-of-the-line Stockfish? If it would basically never lose, it would be strong evidence (but obviously, not a proof) that chess is a draw with perfect play.</p>
 -1: <p>Ubisoft's <em>Chessmaster: Grandmaster Edition</em> allowed users to play against computer personalities. One was described as being a <em>drawmaster</em>:</p>

<blockquote>
  <p>LOGAN</p>
  
  <p>[RATING] 2561</p>
  
  <p>[BIOGRAPHY]
  Logan is an English professor at a small, prestigious college in the 
   Northeast. As faculty advisor for the college chess team, he enjoys the 
   opportunity of playing against the bright young minds of his school and 
   helping shape the strengths and strategies of his protégés.</p>
  
  <p>[STYLE]
  Logan is called the 'drawmaster'. His openings tend to be drawish and he will 
   often play for a draw even when ahead. He is rated at 2561.</p>
</blockquote>
 825: <p>Stockfish, Houdini and Komodo (many other engines too) can all be configured like what you said. This is known as <code>Contempt</code>. In Komodo, the name is <code>Drawscore</code> (same thing). If you give enough negative value to the option, the engine will not push for a win even it sees it.</p>

<p><a href="https://i.stack.imgur.com/1U659.png" rel="noreferrer"><img src="https://i.stack.imgur.com/1U659.png" alt="enter image description here"></a></p>

<p><a href="http://support.stockfishchess.org/kb/advanced-topics/engine-parameters" rel="noreferrer">http://support.stockfishchess.org/kb/advanced-topics/engine-parameters</a></p>
