What does ECO stand for?

ECO stands for "Encyclopedia of Chess Openings"

How to abbreviate "Encyclopedia of Chess Openings"?

"Encyclopedia of Chess Openings" can be abbreviated as ECO

What is the meaning of ECO abbreviation?

The meaning of ECO abbreviation is "Encyclopedia of Chess Openings"

What does ECO mean?

ECO as abbreviation means "Encyclopedia of Chess Openings"