Centrosymmetric Knight Tours (180° Rotation-Symmetric) By Walt Fristoe and illustrated by Dan Thomasson - 12/30/2005 www.BordersChess.org/WFristoe.htm modified 2006.12.14
Centrosymmetric Knight Tours (180° Rotation-Symmetric)
www.BordersChess.org/WFristoe.htm modified 2006.12.14