Sudoku Kyo free sudoku game

Sponsored Links

TOP > Techniques > Simple Coloring

Solving Techniques 7
Simple Coloring

Suppose the candidate numbers are as pictured. Lets examine [5].

If a [5] is entered in A2, a chain of cells where [5]’s can and cannot be arises. The yellow indicates [5]’s, the blue indicates [not 5]’s.
In the [25] cells in the middle, both cells will become [5]’s, which is impossible.

If a [1] is entered at A2, this too implies a chain, but it doesn’t end in a contradiction.
The yellow indicates [5]’s, the blue indicates [not 5]’s.
Thus, a single chain is when a problem can be solved at once, by focusing on one number. In this diagram’s case, you have to repeat [5][not 5],[5][not 5], [5][not 5], so it’s not too easy to keep track of.

Sponsored Links

Names of cells in Sudoku

A1A2A3A4A5A6A7A8A9
B1B2B3B4B5B6B7B8B9
C1C2C3C4C5C6C7C8C9
D1D2D3D4D5D6D7D8D9
E1E2E3E4E5E6E7E8E9
F1F2F3F4F5F6F7F8F9
G1G2G3G4G5G6G7G8G9
H1H2H3H4H5H6H7H8H9
I1I2I3I4I5I6I7I8I9

Sponsored Links

Sudoku Kyoto(Number Place)Free Puzzle Game
TOP