Manual de Houdini 3 2012 | Page 101

Reference

3.3.6

101

Tournament move
A tournament move appears as green in the openings tree window

Tournament moves are played by the program if directed in the book options. It will
not play a move that has been excluded from tournament play and which appears red
in the tree.
If you right-click a move you can change its status (e.g., by selecting “Don't play in
tournaments”).

3.3.7

ECO chess openings classification
ECO stands for the Enc y c lopa e dia of Che ss Ope nings and is used by almost all chess
players and publications all over the world.
Individual openings variations have a code consisting of a letter (A – E) and a twodigit number. There are also names for most of them.
Examples:
A51

© ChessBase 2012

Budapest Gambit, Fajarowicz Variation