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.
(In reply to
computer solution by Charlie)
1 16 31 40 3 18 21 64
30 39 2 17 42 63 4 19
15 32 41 46 53 20 61 22
38 29 48 43 62 45 54 5
33 14 37 52 47 58 23 60
28 49 34 57 44 55 6 9
13 36 51 26 11 8 59 24
50 27 12 35 56 25 10 7
Tried to make the background color black with a div bgcolor, but that doesn't work.
Edited on January 24, 2008, 3:50 pm
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Posted by Charlie
on 2008-01-24 15:48:27 |
re: computer solution
