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Tap a cell, then pick a color.
Tap a cell, then pick a color.
Fill each outlined region with its colors — a region of N cells uses the first N colors, each once.
Marked clue cells are fixed. A red glow means a color is touching its twin.
Daily · Medium
Save your streak to any device — free, no password.
Your current progress will be cleared.
Suguru, in color. Fill each outlined region with its colors so no color ever touches its twin — not even diagonally.
An independent color variant of Suguru (also called Tectonic), a puzzle popularized by the Japanese publisher Nikoli. Chromix Games LLC is not affiliated with or endorsed by Nikoli; the name, mark, palette, design, and software are original to Chromix Games LLC, created by founder Stuart S. Barrantes.
Wong is Tectachrom’s accessibility palette. It replaces the default colors with a set chosen so that the cells stay distinguishable for the most common forms of color vision deficiency.
The colors are adapted from Bang Wong’s color-blind-safe palette, published in Nature Methods in 2011 and shared for community use.
You can switch between the default Tectachrom palette and Wong any time from Settings.
For a cue that doesn’t rely on color at all, turn on Suguru in Settings — every color also shows its number (1–5), so the puzzle stays solvable in grayscale or with any color vision.
Tectachrom is a title developed and published by Chromix Games LLC, a Florida limited liability company. By playing Tectachrom, you agree to these terms.
© 2026 Chromix Games LLC. All rights reserved, including without limitation the source code, visual design, game mechanics, and accompanying assets. Unauthorized reproduction or distribution is prohibited.
Chromix is a trademark of Chromix Games LLC and is the subject of pending U.S. trademark applications at the United States Patent and Trademark Office in International Class 9 (computer software and electronic games) and International Class 41 (entertainment and gaming services). Tectachrom is a common-law trademark of Chromix Games LLC. The Tectachrom name, mark, design, and code are the property of Chromix Games LLC.
An independent color variant of Suguru (also called Tectonic), a puzzle popularized by the Japanese publisher Nikoli. Chromix Games LLC is not affiliated with or endorsed by Nikoli; the name, mark, palette, design, and software are original to Chromix Games LLC.
Tectachrom is provided for personal, non-commercial use. You may play it and share screenshots, scores, and results for personal enjoyment.
Without Chromix Games LLC’s prior written consent: redistribution of the game in whole or in part; commercial reproduction or distribution; creation of derivative works for sale; removal or alteration of any copyright, trademark, or proprietary notice; and reverse engineering for commercial replication.
mulberry32 by Tommy Ettinger (public domain); interface icons after Feather Icons (MIT, © 2013–present Cole Bemis); the colorblind-safe palette adapted from Bang Wong (Nature Methods, 2011); and the typefaces Syne (SIL Open Font License 1.1) and Switzer (ITF Free Font License, via Fontshare). Each is used under its own license; this notice grants no rights beyond those licenses. Full credits at playchromix.com/credits.
Tectachrom stores your progress and preferences on your device. Where it connects to Chromix account features, the Chromix privacy policy at playchromix.com/privacy applies. Tectachrom contains no content unsuitable for any age and collects no personal information from anyone, including children, consistent with the Children’s Online Privacy Protection Act (COPPA).
Tectachrom is provided “as is” and “as available,” without warranty of any kind, express or implied. To the fullest extent permitted by law, Chromix Games LLC shall not be liable for any direct, indirect, incidental, or consequential damages arising from use of or inability to use the game.
These terms are governed by the laws of the State of Florida, USA, without regard to its conflict-of-laws principles. The game is available worldwide; you are responsible for compliance with the laws applicable where you use it.
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© 2026 Chromix Games LLC.