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# coding=utf-8
name = 'prog_8puzzle/2'
slug = '8-puzzle-solving language'
description = '''\
<p>Write a DCG for solving 8-puzzles. The first symbol in every word is <code>[begin]</code>, followed by any sequence of "instruction" symbols from the set {<code>left</code>, <code>right</code>, <code>up</code>, <code>down</code>}, and finally <code>[end]</code>. The starting symbol should be named <code>prog_8puzzle</code>.</p>
<p>Example words: <code>[begin,left,down,right,end]</code>, <code>[begin,down,end]</code>.</p>'''
hint = {}
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