Solution to the knight's tour problem in the Sri Ranganatha Padhuka Sahasram composed by Sri Swami Vedanta Desikan around 700 years ago!
Swami Vedanta Desikan has given the solution in the 13th century whereas, the solution was given for the first time in the Western Hemisphere by Leonhard Euler only in the late 18th century i.e, 500 to 600 years after Swami Desikan had given the key to solving this mathematical problem!
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https://www.youtube.com/watch?v=1Ro5ht1GERc&feature=share