Files
Landon Curt Noll a1c86c8a7a add original C links to entry navigation bars
The navigation bar for a winning entry now has a "_Original C_" link
(between the ✅ and the Inventory on the right hand side) so that one
may easily view the original C code that was submitted for IOCCC judging.

Ran `make www timestamp` to perform the above.
2025-08-10 12:46:23 -07:00

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<div class="header">
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width=300
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<h1>The International Obfuscated C Code Contest</h1>
<h2>1987/lievaart - Grand Prize</h2>
<h3>very good Othello player</h3>
</div>
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<div class="navbar">
<a class="Left" href="../korn/index.html">&larr; 1987/korn</a>
<a class="Left" href="../index.html">&uarr; 1987 &uarr;</a>
<a class="Left" href="../wall/index.html">1987/wall &rarr;</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/lievaart.c">C code</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/Makefile">Makefile</a>
<a class="Right" href="#inventory">Inventory</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/lievaart.orig.c">Original C</a>
<a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F1987%2Flievaart%2Findex.html">&#x2713;</a>
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<h2 id="author">Author:</h2>
<ul>
<li>Name: <a href="../../authors.html#Roemer_B_Lievaart">Roemer B. Lievaart</a><br>
Location: <a href="../../location.html#NL">NL</a> - <em>Kingdom of the Netherlands</em> (<em>Netherlands</em>)</li>
</ul>
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<!-- BEFORE: 1st line of markdown file: 1987/lievaart/README.md -->
<h2 id="to-build">To build:</h2>
<pre><code> make all</code></pre>
<h2 id="to-use">To use:</h2>
<pre><code> ./lievaart
# enter a level and start playing as described below</code></pre>
<h2 id="try">Try:</h2>
<p>To see what it would have looked like without the size restrictions:</p>
<pre><code> ./lievaart2
# enter a level and start playing as described below</code></pre>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>We believe that you too will be amazed at just how much power Mr. Lievaart
packed into 1024 bytes!</p>
<p>This Plays the game of Reversi
(<a href="https://en.wikipedia.org/wiki/Reversi">Othello</a>)! Compile and run. It then
asks for a playing level. Enter 0-10 (easy-hard). It then asks for
your move. A move is a number within 11-88, or 99 to pass. Illegal
moves (except for an illegal pass) are rejected. Then the computer
does its move (or a 0 to pass), until the board is full.</p>
<p>It plays rather well, for such a small program! Lievaart had to leave out the
board printing routine, so you’ll have to take a real game board to play it (or
see below). … Also due to space-limitations (the rules for 1987 had a limit
of 1024 byes), Lievaart took out the passing-handler, which makes its
ending-game rather poor. But further it knows all the rules, uses <a href="https://en.wikipedia.org/wiki/Alpha-beta_pruning">alpha-beta
pruning</a>, and it plays for
instance on mobility(!). Most important: it can play a pretty good game of Reversi!</p>
<p>The Author was kind enough to supply the fully functional version of the
program. The file <a href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/lievaart2.c">lievaart2.c</a> contains what the program would
have been without the size restriction. This version has the full end game
logic and displays the board after each move! See above for how to use this.</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>No remarks were provided by the author.</p>
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<div id="inventory">
<h1 id="inventory-for-1987lievaart">Inventory for 1987/lievaart</h1>
</div>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/lievaart.c">lievaart.c</a> - entry source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/Makefile">Makefile</a> - entry Makefile</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/lievaart.orig.c">lievaart.orig.c</a> - original source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/lievaart2.c">lievaart2.c</a> - source code with drawn board - breaks size rule</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a href="1987_lievaart.tar.bz2">1987_lievaart.tar.bz2</a> - download entry tarball</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/README.md">README.md</a> - markdown source for this web page</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/.entry.json">.entry.json</a> - entry summary and manifest in JSON</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1987/lievaart/.path">.path</a> - directory path from top level directory</li>
<li><a href="index.html">index.html</a> - this web page</li>
</ul>
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<div id="coda"><h3>Coda</h3>
<p>
<a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F1987%2Flievaart%2Findex.html" rel="nofollow">Nu HTML check this web page</a><br>
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