  Non-crossing knight's tours in 3-dimension is a new field of research. The
author has shown its possibility in small cuboids and in cubes up to 8x8x8
size. It can also be extended to larger size cubes and cuboids. The author has
achieved jumps of length 15, 46, 88, 159, 258 and 395 in cubes of size 3x3x3,
4x4x4, 5x5x5, 6x6x6, 7x7x7 and 8x8x8 respectively. This amounts to covering
59%, 73%, 71%, 74%, 76% and 77% cells in these cubes.
