What is Olga?
The Olga Chess Viewer is an excellent chess viewer that allows you to view PGN games on Chessgames. Among its many powerful features are a beautiful and configurable board diagram, the ability to create and play through variations, and an interface to the incredibly strong Stockfish™ chess engine.How do I watch a game?
One way is to press the auto-play button (the one that looks like a "+"). That will step you through the game move by move, automatically. However, if you would like more control, press the next-move button (the largest button that looks like ">") and you will move forward one move at a time.How do I flip the board so that Black is on the bottom?
Press the special key 'f', or open up Settings (see below) and press the "Flip Board" button.What are "Settings?"
When you click the "SETTINGS" link in the lower right, you'll see a window that looks something like this:
What is the Analysis Window?
You are free to move the pieces via drag-and-drop on the board at any time. If you do this, you'll explore a variation of the game, and a window will appear that accrues the moves you make. This window looks something like this:
While the analysis window is present, you are in "analysis mode." While in this mode, the buttons will restrict you to the variation: for example, the "<<" button will take you to the start of your analysis, while ">>" will take you to the end. To dismiss your analysis and get back to the game as it was played, click the small [X] next to the word "ANALYSIS" and the window will vanish.How do I activate the Chess Engine?
Clicking the "ENGINE" notes in the lower right will open the analysis of the current position in a new window. Usually, it will tell you to wait 6 seconds and then automatically show you the results. However, if analysis of the position already exists in our database of that particular position, you'll get the results instantly.Credits