rmat. <strong>Drago</strong> keeps track of the solved
problems and of the number of successes for each one.</p>

<p>Note that some solutions are sometimes missing from files,
leading <strong>Drago</strong> to consider correct moves as
failures. Be indulgent if this occurs, the goal is not the score
but rather to practice and memorize a lot of problems.</p>

<hr size="1" color="#C0C0C0">

<ol>
    <li><a href="#Lancement">Starting a problem session</a></li>
    <li><a href="#Deroulement">Description of a pr