How many moves in opening
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Is there a max moves in an opening to be considered opening before start the middle game?
Sorry, I found the answer in the forum
In Jose Capablanca's book chess fundamentals ,as a rule 8 moves are enough for the opening stage
Nov 6, 2018
0
#4
My definition in terms of pawn structures and the total pawn height h:
- Opening: h=0-32
- Middle game: h=33-64
- Endgame: h=65-96
N.B. h=96 corresponds to a pawnless endgame. 
Nov 6, 2018
0
#5
My opening novelty in my "Kids, don't try this at home!" thread came on move 28.
Nov 6, 2018
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#6
@blueemu How many times are you going to mention that? For clarification, you can use a database in daily chess. And you didn’t even play the opening right. As mentioned by probably @pfren 20...Kf8 is superior to 20...Rd8. Rd8 is probably a draw while Kf8 has been a black win most of the time.
Nov 6, 2018
0
#7
Kmatta wrote:
@blueemu How many times are you going to mention that? For clarification, you can use a database in daily chess. And you didn’t even play the opening right. As mentioned by probably @pfren 20...Kf8 is superior to 20...Rd8. Rd8 is probably a draw while Kf8 has been a black win most of the time.
To take your points in order:
Regarding my habit of directing people to that game: I expect I'll be mentioning it several more times, yes. I find DierdreSky's hysterical attack on me and subsequent melt-down to be hilarious, and the more people that read it, the better.
Regarding IM pfren's point that 20. ... Kf8 was better than my 20. ... Rd8: Well, yes. pfren is an international master. Not sure what your point is... am I supposed to be ashamed that an IM found a way to improve on my play in that game? Because I'm not ashamed of that. Or are you saying that you've never played a move that an IM might improve on? Not sure what you are getting at.
In case you've lost the thread completely... in the present context, I wasn't offering that game as an example of "perfect play". I was offering it as an example of a late opening novelty... move 28. Try reading my post #5 above in context.