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POCommunicating with XBoard (chess engine) (C++/C)
 

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    <p>I was just toying around with making a basic chess engine. I was able to get a lot of advice from <a href="http://web.archive.org/web/20070704121716/http://www.brucemo.com/compchess/programming/alphabeta.htm" rel="nofollow">http://web.archive.org/web/20070704121716/http://www.brucemo.com/compchess/programming/alphabeta.htm</a>, but the real site is down and not all the pages are archived. (Anyone know where to find a full version of Bruce's site?)</p> <p>But now to the real question: how do I communicate with XBoard? I understand it is via stdin and stdout, but I've been having problems in code. Basically, to get started, I just want to </p> <ol> <li>receive input from XBoard and print it to the console/screen </li> <li>Give a move of hard-coded input to XBoard and have it make the move </li> <li>program utility functions and have a random chess ai which chooses random moves. </li> </ol> <p>After that, I can start implementing real things like alpha-beta searching.</p> <p>I am stuck on the first two things right now. Here is some code I have tried to write/borrowed.</p> <pre><code>#include &lt;iostream&gt; #include &lt;string.h&gt; #include &lt;stdio.h&gt; #include &lt;stdlib.h&gt; #define STR_BUFF 256 using namespace std; int main (int argc, const char * argv[]) { char input[STR_BUFF]; char output[STR_BUFF]; while(true){ fflush(stdout); // read input if (!fgets(input, STR_BUFF, stdin)){ printf("terminated"); return 0;; } printf("%s", input); } return 0; } </code></pre> <p>I am just getting back into C after about 6 months break and this is the first project that I have used stdin/stdout pipelines to communicate with another program (minus a few basic programs) so I would appreciate any help and any explanations. I know programming a chess engine is a herculean task, but I have already programmed the rules of chess before and what I can find of Bruce's site is absolutely amazing.</p>
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    1. COMay I suggest you look at http://chessprogramming.wikispaces.com/ as a replacement for Bruce Moreland's site?
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