what does chess.com insights classify as “opening, middle and end game”
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thefranman
Feb 10, 2022
0
#1
I was looking through the insights feature which tells you your accuracy through each game phase. Opening, middle game, and end game. Is there a certain move number that’s used to determine when one game phase starts and ends? I know realistically there’s no hard and fast rules about when the opening ends and the middle game begins etc., but to sort the data in that way you kinda have to decide on a cut off of some sort. Was wondering what was used in this instance.
Feb 10, 2022
0
#2
thefranman wrote:
I was looking through the insights feature which tells you your accuracy through each game phase. Opening, middle game, and end game. Is there a certain move number that’s used to determine when one game phase starts and ends? I know realistically there’s no hard and fast rules about when the opening ends and the middle game begins etc., but to sort the data in that way you kinda have to decide on a cut off of some sort. Was wondering what was used in this instance.
I'm not seeing anything documented. I'm asking about it.
#1
I do not know how they do it here, but how it should be done.
Middle game is everything that is not opening or endgame.
Opening it is as long as a game with the same position exists in a data base.
Everything with 7 men or less is decidedly endgame. Some positions with >7 men can be considered endgame as well as middle game. Positions with at most 1 queen / rook / bishop / knight on each side are generally considered endgame, regardless of the number of pawns.
Some positions with 2 queen / rook / bishop / knight on each side are often considered endgame as well.
