Coloring

Coloring is a single-digit solving technique that uses colors to mark the parity of candidates.

Although it is an advanced solving technique, many player know how to use it because it is supported by the popular Simple Sudoku program.

Subtypes

Simple Colors

Uses only 2 colors to form a single color cluster.

Multi-Colors

Uses multiple colors (4, 6 or a higher mutiple of 2) to form multiple color clusters.

X-Colors

Uses only 2 colors, but also takes the implications for each color into account.

Color Trap

A technique that uses a single cluster to eliminate candidates outside the cluster.

Color Wrap

A technique that uses a single cluster to detect a contradiction in one of the colors.

Color Wing

A technique that uses multiple clusters to eliminate candidates outside these clusters. Same as Multi-Colors.

3D Medusa Coloring | Advanced Coloring

A set of techniques that uses colors on multiple digits.

Related Techniques

Equivalence Marks

Uses parity markers instead of colors.

Fish | 2-String Kite | Skyscraper

Pattern recognition techniques that can often be replicated by coloring techniques.

Neero-farabi

Refer to its discussion at http://www.setbb.com/phpbb/viewtopic.php?t=1562&mforum=sudoku.