The book is now available! 499
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

Single Curio View:   (Seek other curios for this number)


A Knight's Tour
A knight's tour is a numbered tour of a knight over an otherwise empty chessboard visiting each square once only. A queen placed on the start of a tour discovered by George Jelliss can attack all of the odd primes, and every odd number attacked by the queen is a prime. It is also a more restricted version known as a re-entrant tour, in which the knight, on its 64th move, could arrive back at its starting square. The sum of the odd primes in the tour is 499.


  Submitted: 2008-02-20 21:58:54;   Last Modified: 2009-03-12 20:44:46.

Prime Curios! © 2000-2017 (all rights reserved)