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 Colourful Knight's Tour (Posted on 2008-01-24)
A knight enters the grid at number 1 and then moves, as if he were on a chessboard, to number 2. He visits every square in numerical order, before exiting at number 64.

KEY:
Blue = cube numbers (1, 8, 27 and 64)
Green = squares which are not cubes (4, 9, 16, 25, 36 and 49)
Red = prime numbers (2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59 and 61)
Yellow = multiples of ten (10, 20, 30, 40, 50 and 60)
Purple = multiples of 11 which are not prime (22, 33, 44 and 55)

One number has been added to get you started.
 35

 No Solution Yet Submitted by Josie Faulkner Rating: 4.9091 (11 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
 The easy way or the hard way | Comment 18 of 19 |

Repeating the solution would be redundant and repetitive in a deja vu sort of way.

I found the problem (as posted) challenging, but as a glutton for punishment I tried it again without the "35".  It took me three times as long but I was able to find the same answer.

Great puzzle Josie.  When's the next one due to hit the queue?

 Posted by Leming on 2008-01-30 11:21:00

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