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3.3.6 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 lopaedia 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 B72
Budapest Gambit, Fajarowicz Variation Sicilian Dragon: 6 Be3, lines with h3 + Bc4 and sidelines
The ECO classification used by this program was improved by leading openings expert GM Dr. John Nunn.
The program can create an openings key based on the ECO code.
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