Chessboard powered by <a href="http://chessboardjs.com/">chessboard.js</a>
and <a href="https://github.com/jhlywa/chess.js">chess.js</a>.
Ding sound by <a href="https://www.freesound.org/people/Aiwha/sounds/196106/">Aiwha</a> (CC-BY-3.0).
- <span id="lomonosov">7-man Lomonosov tablebase lookup by <a href="http://tb7.chessok.com/">ChessOK</a>.</span></p>
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