Opening library

tChess comes with a built-in database of opening moves—the most frequently played 75,000 moves from a collection of 125,000 Grandmaster games.

You can explore this database via the "Opening library" feature:





There are multiple ways to access this feature:
  • Go to the main menu, select the "Features" tab, and tap on the "Opening library" menu item
  • If you're using an iPhone, swipe to the left on the chess board, as if you're pulling the "Opening library" menu in from the right
  • Go to the main menu, select the "Interface" tab, tap on the "Toolbar buttons" menu item, and add the "Opening library" button to the main toolbar
"Opening library" shows you which opening led to the current position, which moves are frequently played from the current position (if any), and how often each move is played.

If an opening is found in the Encyclopedia of Chess Openings, tChess will display the opening's ECO code and name.