outcome rating.</p>
<p>The outline of the Colley method is as follows:</p><ol>
<li><p>Compute Colley matrix: diagonal elements are equal to number of games
played by certain player <em>plus 2</em>, off-diagonal are equal to minus number of
common games played. This matrix will be the matrix of system of linear
equations (SLE).</p></li>
<li><p>Compute right-hand side of SLE as 1 + 0.5*("number of player's wins" -
"number of player's losses").</p></li>
<li><p>Solve the SLE. The solution is the Colley rating.<