Answer to February 4, 2002 Problem |
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The Ten Numbers Problem Place the numbers 1 to 10 in the ten beige squares so that no two consecutive numbers are touching (diagonally, vertically, or horizontally).
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Solution:
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Richard Johnson sent the following analysis of the problem:
There are 1580 solutions to the puzzle as stated. 6 8 x 3 1 5 10 7 9 x 4 2 If the problem is changed to: Place the numbers 1 to 10 in the ten beige squares so that no two consecutive numbers are in the same row (diagonally, vertically, or horizontally). Then we get 1 unique result: 2 7 x 5 10 3 8 1 6 x 4 9and it's rotation. This is also a knight's tour, another famous puzzle.
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1. Christopher March | Virginia Tech, Blacksburg, Virginia |
2. Richard K. Johnson * | La Jolla, California |
3. Keith Mealy | Cincinnati, Ohio |
4. Rick Jones | Kennett Square, Pennsylvania |
5. Walt Arrison | Philadelphia, Pennsylvania |
6. Ghazaleh Joukar | Winchester, Virginia |
7. Carter Staples | Columbus, Georgia |
8. John Beasley * | Winchester, Virginia |
9. Ellen Sankovich * | Winchester, Virginia |
10. Daniel Costello * | Winchester, Virginia |
11. Bahareh Joukar | Winchester, Virginia |
12. Stephanie Hower * | Winchester, Virginia |
13. Tommy Dick | Winchester, Virginia |
14. Izzy Kushner | Closter, New Jersey |
15. Matt Crandell * | Winchester, Virginia |
16. George Gaither * | Winchester, Virginia |
17. Caleb Lesnoff | Winchester, Virginia |
18. Tori Eads * | Winchester, Virginia |
19. Elizabeth Gibbs | Winchester, Virginia |
20. Lauren Connor | Winchester, Virginia |
21. Joe Heintz | Manchester, Tennessee |
22. Jaime Lockhart | Winchester, Virginia |
23. Nick von Keller | Winchester, Virginia |
24. Renata Sommerville | Austin, Texas |
25. Clifton Fay | Columbus, Georgia |
26. Tony Cahill | Winchester, Virginia |
27. Jaime Garcia * | Winchester, Virginia |
28. Anne Beavers | Arlington, Virginia |
29. Joe Jenkins * | Winchester, Virginia |
30. Rodney Brown | Winchester, Virginia |
31. Jill Schlueter | Winchester, Virginia |
32. Sarah Jarrell | Columbus, Georgia |
33. Wilds Ogie | Columbus, Georgia |
34. Elizabeth Emmart | Winchester, Virginia |
35. Brendan Jones | Winchester, Virginia |
36. David Powell * | Winchester, Virginia |
37. Jessica Wolff | Columbus, Georgia |
38. Ashleigh Mark | Columbus, Georgia |
39. Jay Carpenter | Winchester, Virginia |
40. Janine Oliver * | Winchester, Virginia |
41. Ashley Maignan | Columbus, Georgia |
42. ---------- | United Kingdom |
43. Emily Moll | Thiel College, Greenville, Pennsylvania |
44. James Alarie * | University of Michigan -- Flint, Michigan |
45. Marshal Diehr | Winchester, Virginia |