MICOS™ Copyright Protection
🔒 MasterInChess Openings System (MICOS™) – 2026 Edition – Official Classification Registry.
Registered: 1. April 2026.
This canonical edition establishes the permanent MICOS Codes and move-order–based classification structure.
It serves as the official registry of Opening Names, Chess Notation, MICOS Codes, Opening Groups, and Main Groups.
MICOS – 2026 Edition is the official and current version of the MasterInChess Openings System.

(Click on Image to enlarge and zoom in)
🔒MasterInChess Openings System (MICOS™) – Sub Groups 2026 Edition – Official Classification Registry.
This edition serves as the official registry of Sub Groups, Opening Names, Chess Notation, MICOS Codes, Opening Groups, and Main Groups.

(Click on Image to enlarge and zoom in)
✅ Verification of certificates can be requested by contacting:
📧 [email protected]
Previously Registered Versions
MICOS Certificate version 1.1

MICOS Sub Groups Certificate v 1.1

MICOS™ Copyright Protection
MICOS™ is a proprietary chess openings classification system developed by Claus Gamborg, Founder of MasterInChess, and protected under international copyright law.
Copyright © 2026 MasterInChess – Claus Gamborg. All rights reserved.
The MICOS™ classification structure, including Opening Names, Chess Notation, MICOS Codes, Opening Groups, Sub Groups and Main Groups is protected.