Planet Sudoku

How do you Sudoku? Introduction to How To's

Solving Techniques

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Show Hints / Candidates will help you see the available pencil values within the cell, row, column, and boxes.

Sudoku How To Technique: Hidden Pair

This is the beginning of the more advanced techniques, however still manageable. This method basically says “If there are two hints in two cells within one container, then we know that no other hints could be valid within that container using process of elimination”. The given example shows BOX 7 with CELLS R7C3 and R8C3 having valid HINTS of {1,9}. HINTS {1,9} do not show anywhere else within BOX 7, allowing us to know that those values {1,9} could be the only possible valid values for those cells.

This solving method has been categorized as Easy Sudoku. Try this and other Easy Sudoku solving methods.
Try this Hidden Pair Sudoku puzzle.

Puzzle Number: 1208057
Method: HIDDEN PAIR {1,9} - In Block Type: COLUMN
Found Cell and Hints: s1r7c3 1,9; s1r8c3 1,9;
Removing Hints: s1r7c3 2,3,5,6; s1r8c3 2,3,4,5;

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