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What do the computer evaluation numbers mean (like +2.25)?
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Chess engines (computer programs) use a standard notation to indicate who is better off (White or Black) in a given position. It's pretty simple, actually. First, a positive ("+") number means that White is better; conversely, a negative ("-") means things look better for Black. The number itself can be related to the material evaluation of the different chess pieces: 1 = a pawn 3 = a Knight or Bishop 5 = a Rook 9 = a Queen However, the evaluation is not just about material currently on the board; computer analysis also looks ahead, factoring in positional aspects and tactical possibilities. So, if the evaluation is +2.25, it means that white is ahead by 2.25 pawns (or "points"). (In other words, White has an advantage which is roughly equivalent to 2.25 pawns worth of material.) Likewise, if the evaluation is -3.00, then Black is ahead - and Black's advantage is about the same as having an extra Bishop or Knight! keywords: computer, evaluation, score, number, numbers, analysis, advantage, scoring |
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