Sudoku! Challenging. September 5, 09. Want to play?

Instructions:

There are 9 rows of numbers across and 9 columns of numbers down.

Numbers 1 through 9 need to go across and down.

You can only use each number once in each row, column, or 3x3 square.

l 2 l _ l 8 ll _ l _ l _ ll _ l _ l 3 l

l _ l _ l 3 ll 8 l 1 l _ ll _ l _ l _ l

l _ l _ l _ ll _ l 9 l _ ll _ l 6 l 8 l

l _ l 3 l _ ll _ l _ l 7 ll 9 l _ l _ l

l _ l 4 l _ ll 5 l _ l 6 ll _ l 8 l _ l

l _ l _ l 2 ll 4 l _ l _ ll _ l 5 l _ l

l 6 l 9 l _ ll _ l 5 l _ ll _ l _ l _ l

l _ l _ l _ ll _ l 4 l 1 ll 6 l _ l _ l

l 4 l _ l _ ll _ l _ l _ ll 5 l _ l 7 l

258 674 193

963 812 475

174 395 268

536 187 942

749 526 381

812 439 756

697 253 814

385 741 629

421 968 537

#1

l 2 l 5 l 8 ll 6 l 7 l 4 ll 1 l 9 l 3 l

l 9 l 6 l 3 ll 8 l 1 l 2 ll 4 l 7 l 5 l

l 1 l 7 l 4 ll 3 l 9 l 5 ll 2 l 6 l 8 l

l 5 l 3 l 6 ll 1 l 8 l 7 ll 9 l 4 l 2 l

l 7 l 4 l 9 ll 5 l 2 l 6 ll 3 l 8 l 1 l

l 8 l 1 l 2 ll 4 l 3 l 9 ll 7 l 5 l 6 l

l 6 l 9 l 7 ll 2 l 5 l 3 ll 8 l 1 l 4 l

l 3 l 8 l 5 ll 7 l 4 l 1 ll 6 l 2 l 9 l

l 4 l 2 l 1 ll 9 l 6 l 8 ll 5 l 3 l 7 l

#2

9/5 Challenging

l 2 l 5 l 8 ll 6 l 7 l 4 ll 1 l 9 l 3 l

l 9 l 6 l 3 ll 8 l 1 l 2 ll 4 l 7 l 5 l

l 1 l 7 l 4 ll 3 l 9 l 5 ll 2 l 6 l 8 l

l 5 l 3 l 6 ll 1 l 8 l 7 ll 9 l 4 l 2 l

l 7 l 4 l 9 ll 5 l 2 l 6 ll 3 l 8 l 1 l

l 8 l 1 l 2 ll 4 l 3 l 9 ll 7 l 5 l 6 l

l 6 l 9 l 7 ll 2 l 5 l 3 ll 8 l 1 l 4 l

l 3 l 8 l 5 ll 7 l 4 l 1 ll 6 l 2 l 9 l

l 4 l 2 l 1 ll 9 l 6 l 8 ll 5 l 3 l 7 l

#3

l 2 l 5 l 8 ll 6 l 7 l 4 ll 1 l 9 l 3 l

l 9 l 6 l 3 ll 8 l 1 l 2 ll 4 l 7 l 5 l

l 1 l 7 l 4 ll 3 l 9 l 5 ll 2 l 6 l 8 l

l 5 l 3 l 6 ll 1 l 8 l 7 ll 9 l 4 l 2 l

l 7 l 4 l 9 ll 5 l 2 l 6 ll 3 l 8 l 1 l

l 8 l 1 l 2 ll 4 l 3 l 9 ll 7 l 5 l 6 l

l 6 l 9 l 7 ll 2 l 5 l 3 ll 8 l 1 l 4 l

l 3 l 8 l 5 ll 7 l 4 l 1 ll 6 l 2 l 9 l

l 4 l 2 l 1 ll 9 l 6 l 8 ll 5 l 3 l 7 l

#4