NY Post (today), page 18 (difficult #1327):

Sudoku Line

XX7XXXXX1
XX27X69XX
1X4XXXXXX
X1X6XX2X5
2XXX4XXX3
7X5XX8X9X
XXXXXX8X4
XX18X53XX
9XXXXX1XX

Line 1: | 8 | 9 | 7 | 4 | 5 | 2 | 6 | 3 | 1 |
Line 2: | 3 | 5 | 2 | 7 | 1 | 6 | 9 | 4 | 8 |
Line 3: | 1 | 6 | 4 | 9 | 8 | 3 | 5 | 7 | 2 |
Line 4: | 4 | 1 | 9 | 6 | 3 | 7 | 2 | 8 | 5 |
Line 5: | 2 | 8 | 6 | 5 | 4 | 9 | 7 | 1 | 3 |
Line 6: | 7 | 3 | 5 | 1 | 2 | 8 | 4 | 9 | 6 |
Line 7: | 5 | 7 | 3 | 2 | 9 | 1 | 8 | 6 | 4 |
Line 8: | 6 | 4 | 1 | 8 | 7 | 5 | 3 | 2 | 9 |
Line 9: | 9 | 2 | 8 | 3 | 6 | 4 | 1 | 5 | 7 |

Lenny