Micro (4x4) Sudoku
Mini (6x6) Sudoku
"+9" Samples
Special Occasions
Standard (9x9) Sudoku
Sudoku Strategy
Free Printable Books
Sample Puzzles
About DC Sudoku
How to Sudoku
Sudoku Humor
The purple highlighted column is missing the numbers 3, 6, 8 and 9. The highted red 6 and 9 eliminate two tiles. Those two tiles must be the 3 and 8.
The pink highlighted 3 below eliminates one tile, that tile must be 8.
Main Strategy Page | Previous | Next