Computer Analysis

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Avatar of ADEGchess

when you take up a game to "Computer Analysis"  what does "score" exactly mean? I could see this score change from move to move ( let's say  from -2.3 in current move to -12 in the next move).... so what is this?. Also at the end of the game turn up "Score:

-Mat01"  what does it mean?

 

Please help me!!!, thank you and take care!!!!
Avatar of oinquarki

http://support.chess.com/Knowledgebase/Article/View/120/0/what-do-the-computer-evaluation-numbers-mean-like-225

And Mat## means mate in that many moves.