This cross number puzzle is like a cross word
puzzle except that it uses numbers instead of words.
Follow the clues A to F, and see if you can place
one digit in each box, forming a
three-digit number in each column (reading down)
and a three-digit number in each row (reading
left to right).
Here's one additional clue: Every digit from 1 through 9
will be used exactly once in the grid.
A | B | C | |
D | |||
E | |||
F |
Down:
A has a first digit that is one less
than its second digit, and a second digit that
is one less than its third digit.
B has a first digit that is one more than its second digit, and a second digit that is one more than its third digit.
C has a third digit that is equal to the sum of its first two digits.
Across:
D is an even number.
E is an odd number.
F is equal to three times number A.
Solution to Problem:
A | B | C | |
D | 1 | 8 | 4 |
E | 2 | 7 | 5 |
F | 3 | 6 | 9 |
The key was that the number F must equal 3 times the number A.
Since A must be made up of three consecutive integers (123 or 234 or 345
or 456 or 567 or 678 or 789), the only number which works for F is 369
(if A = 123).
Correctly solved by:
1. Walt Arrison | Philadelphia, Pennsylvania |
2. Rick Jones | Kennett Square, Pennsylvania |
3. Christopher March | Virginia Tech, Blacksburg, Virginia |
4. Rich Murray | Ridgetown, Ontario, Canada |
5. Jaime Lockhart | Winchester, Virginia |
6. Tori Eads | Winchester, Virginia |
7. George Gaither | Winchester, Virginia |
8. John Beasley | Winchester, Virginia |
9. James Alarie | University of Michigan -- Flint, Michigan |
10. Kathy Hall | Wellington, Florida |
11. David Stark | Winchester, Virginia |
12. Geoff Keith | Santa Monica, California |
13. Richard Johnson | La Jolla, California |
14. Carter Wallace | Columbus, Georgia |
15. Scott Hart | Columbus, Georgia |
16. ---------- | United Kingdom |
17. Andrea Flandry | Columbus, Georgia |
18. Emily Moll | University of Pittsburgh, Pittsburgh, Pennsylvania |
19. Nick von Keller | Winchester, Virginia |
20. Jessica Wolff | Columbus, Georgia |
21. Ashley Maignan | Columbus, Georgia |
22. Elizabeth Earley | Columbus, Georgia |
23. Ellen Sankovich | Winchester, Virginia |
24. Janine Oliver | Winchester, Virginia |
25. Justin Collins | Winchester, Virginia |
26. Chip Schweikarth | Bedford, Pennsylvania |
27. Griffin | ----- |
27. Elizabeth Emmart | Winchester, Virginia |