Fritz 21 Handbook

ECO classification

Contents
Contents

The ECO keys represent a system for classifying chess openings. The name derives from the Encyclopaedia of Chess Openings. The ECO system is an internationally recognised standard for opening classification.

Adding ECO codes

Each key consists of a letter from A to E followed by a two-digit number from 00 to 99. There are 500 keys in total, from A00 to E99.

The ECO keys are an important aid for filtering games with specific openings from a game database. They also have the advantage over verbal opening names that they are much more precisely defined and internationally understood. The program shows a game's ECO key in the status bar at the bottom of the screen and can save the identifier with the game.

1
2
2.1
Ribbons
2.2
The menu bands
2.3
2.4
2.5
Style specifications
2.6
Board design – 2D board
2.7
Board window navigation
2.8
User Info
2.9
2.10
2.11
2.12
2.13
2.14
2.15
2.16
2.17
New board sounds
2.18
Style variants
3
3.1
3.2
3.3
3.4
3.5
3.6
3.6.1
Enter & Analyse
3.6.2
Evaluation of the position
3.6.3
Analysis with the Buddy Engine
3.6.4
FAQ Buddy Engine
3.6.5
Visualize engine analysis
3.6.6
Visual Evaluation
3.6.7
Evaluation history in the search
3.6.8
Different displays in the engine window
3.6.9
Full analysis / Tactical Analysis
3.6.10
A tip for Full analysis
3.6.11
Infinite analysis
3.6.12
Duration analysis with analysis comments
3.6.13
Example Tactical Analysis
3.6.14
Deep position analysis
3.6.15
Blundercheck
3.6.16
Using engines interactively
3.6.17
Blitz & train on Playchess.com
3.6.18
Training questions
3.6.19
Commentary symbols in the Fritz Blunder search
3.6.20
Compare analysis
3.6.21
Automatic analysis of server games
3.6.22
Shootout
3.6.23
The Kibitzer
3.6.24
Parallel analysis
3.6.25
Monte Carlo
3.6.26
Extended Engine Information
3.6.27
3.6.28
3.6.29
3.6.30
The Analysis board
3.6.31
Variation board
3.6.32
Visualize Search
3.6.33
Animated engine variants
3.6.34
Chess problems, mate search
3.6.35
Mate search with Fritz
3.6.36
Tips in the engine window
3.6.37
Calculating Elo ratings retrospectively
3.7
3.8
3.9
3.10
3.11
3.12
4
5
6
Glossary
DLL
Endgame database
1
2
2.1
Ribbons
2.2
The menu bands
2.3
2.4
2.5
Style specifications
2.6
Board design – 2D board
2.7
Board window navigation
2.8
User Info
2.9
2.10
2.11
2.12
2.13
2.14
2.15
2.16
2.17
New board sounds
2.18
Style variants
3
3.1
3.2
3.3
3.4
3.5
3.6
3.6.1
Enter & Analyse
3.6.2
Evaluation of the position
3.6.3
Analysis with the Buddy Engine
3.6.4
FAQ Buddy Engine
3.6.5
Visualize engine analysis
3.6.6
Visual Evaluation
3.6.7
Evaluation history in the search
3.6.8
Different displays in the engine window
3.6.9
Full analysis / Tactical Analysis
3.6.10
A tip for Full analysis
3.6.11
Infinite analysis
3.6.12
Duration analysis with analysis comments
3.6.13
Example Tactical Analysis
3.6.14
Deep position analysis
3.6.15
Blundercheck
3.6.16
Using engines interactively
3.6.17
Blitz & train on Playchess.com
3.6.18
Training questions
3.6.19
Commentary symbols in the Fritz Blunder search
3.6.20
Compare analysis
3.6.21
Automatic analysis of server games
3.6.22
Shootout
3.6.23
The Kibitzer
3.6.24
Parallel analysis
3.6.25
Monte Carlo
3.6.26
Extended Engine Information
3.6.27
3.6.28
3.6.29
3.6.30
The Analysis board
3.6.31
Variation board
3.6.32
Visualize Search
3.6.33
Animated engine variants
3.6.34
Chess problems, mate search
3.6.35
Mate search with Fritz
3.6.36
Tips in the engine window
3.6.37
Calculating Elo ratings retrospectively
3.7
3.8
3.9
3.10
3.11
3.12
4
5
6
Glossary