{"version":"1.0","type":"link","title":"Mathematical chess problem - Newikis","description":"A mathematical chess problem is a mathematical problem which is formulated using a chessboard and chess pieces. These problems belong to recreational mathematics. The most well-known problems of this kind are the eight queens puzzle and the knight's tour problem, which have connection to graph…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}