General Terms
What is a NCO in chess?
- Concept
- Vocabulary
- Chess
NCO is a chess abbreviation. In practical terms, it refers to an abbreviation for Nunn's Chess Openings, a chess openings reference. Compare ECO and MCO. If you see it in a database, book, or tournament page, treat it as shorthand and check the surrounding context.
NCO FAQ
What is a nco in chess?
NCO is a chess abbreviation. In practical terms, it refers to an abbreviation for Nunn's Chess Openings, a chess openings reference. Compare ECO and MCO. If you see it in a database, book, or tournament page, treat it as shorthand and check the surrounding context.
Train this pattern on your own games
Reading a definition is not the same as spotting the pattern with a clock running. Chessiro's free game review runs Stockfish 18 over every move you play, names the concept behind each mistake, and turns the positions where it cost you into training puzzles. You can also see the idea in action in the classic games collection, where the greatest players in history demonstrate it.
Related terms
Free game review
See where nco decides your games
Chessiro reviews your games with an AI coach that names the concept behind every mistake, then drills you on the exact positions where it happened until you stop repeating them.
