# Solution to 783658

### by Noah Snyder & Malia Jackson

This puzzle is simultaneously a gridless crossword *and* a Sudoku puzzle. The grid
can be filled in with numbers in a unique way subject to the following conditions:

It is a valid Sudoku grid (all rows, all columns, and all blocks of 9 squares having each
number 1 through 9 exactly once)

AND

It is a valid crossword if you read off the numbers using T9 (2 =
[abc], 3 = [def], ... 9 = [wxyz]) as in a text message. The 1's form
the filled in blocks for the crossword. Notice that a 2 can be read
as an "a" going across, but a "c" going down. As any gridless
crossword should, it has standard crossword symmetry.

The four 7-number answers are all real phone numbers. If you plug
them into the formula in the bottom you get 6294686 which is T9 for
**MAXIMUM** (and no other word in the O.E.D.).

The title is Sudoku in T9.

**The final grid is:**

237648591
598731264
461259873
325874916
674912385
819563742
752496138
943185627
186327459

**The across answers are:**

1. adroitly

9. kyuse

10. ami

12. io

13. alwtse

15. 3258749

17. o

18. orgy

19. cfuk

21. u

22. 9563742

23. slagyo

26. et

27. wie

28. ulnar

30. uneasily

**The down answers are:**

1. clientry

2. exmap

3. st

4. 6728954

5. help

6. t

7. katzdr

8. wop

11. idolatry

14. 9423657

16. lizceo

20. tidal

23. nyuc

25. lit

29. ni

31. f

*2006 MIT Mystery Hunt*