Re: [XBoard-devel] analyzing games

[H.G. Muller]

Svetlana Tkachenko schreef op 1/10/2015 om 3:58 AM:
> I do not see how to analyze a game with a chess engine -- with it showing which 
> moves are mistakes. Is this feature available?
'Mistake' is a relative concept. Even the best human player does play 
most moves different from what a top engine would consider best, and 
loses score as a consequence. In XBoard you can use the Mode->Analyze 
Game menu to analyze the currently loaded game from the currently 
displayed position to the end (or to when you decide to stop, by 
selecting another Mode). This will step through the game at the 
auto-step rate (which can be set in the Load Options dialog), and assign 
a score to every position from the engine analysis. This score can be 
displayed in the Evaluation Graph, and when it jumps, the corresponding 
move was likely a blunder. You can make the jumps stand out more by 
switching the graph to differential mode ('Blunder Graph'), by 
right-clicking in it, to display the difference of the score in the two 
positions: blunders should then stand out as peaks in the graph. By 
left-clicking on the graph you can call up the corresponding position of 
the game.