#2 I feel as you do that Nimzo had to follow up on the previous chapter's open files concept.
It seems to me that the entire "First Part: The Elements" of the book is a mixture of opening, middelgame, endgame, as opposed to a more concentrated exposition of each phase in turn. The advantage of such an approach is showing how the different phases of the game connect together. However, the disadvantage is that the novice may feel like the exposition is jumping around in topics.
An example of a more concentrated exposition of the phases of the game is "The Game of Chess" by Dr. Siegbert Tarrasch. Tarrasch, in that book, orders the exposition as a) rules of the game b) endgame c) middlegame d) opening principles e) various openings e) illustrative games. The disadvantage with Tarrasch's approach is the most people want to start playing the game after learning the rules! They will object to Tarrasch's remark that comes right before "various openings". Here is what Tarrasch says there:
"The beginner who has studied enthusiastically with many repetitions and has assimilated the foregoing subject-matter can now - but only now - start to play games with other people. ... I expressly warn him against trying to learn by heart the following openings [the 'various openings' section]. A terrible thought! He must thoroughly assimilate the principles and then, when he has played a game, he should study the application of those principles to the particular opening adopted. Thus he will discover the inner significance of the various openings."
Back to Nimzo...
I never noticed before that Nimzo changed terms here. In the previous chapter it was "evolutionary" and now it is "convergent". He used "converging" at the end of section 4 in the last chapter also, so it seems a synonym for him.
I like the way he presents diagrams that are the exemplars and then starts adding pieces to them to show specific play with respect to the exemplar positions. In this way he shows, without talking about that as a method, how one can think about patterns and do analogous reasoning. This is also one of the methods of "deliberate practice".
His examination of one way to think about diagram 31 is interesting. First considering the point g7 as the one to attack, because the White Rook directly attacks it on the 7th, he does a calculation to show it will not work. Then he turns attention to h7 as the point to attack. I find that many people do not consider that as a possible attack point because their visualization of the attacks of the White Rook stops at g7 instead of continuing to the edge of the board. For Nimzo this is so obvious (internalized) that he doesn't even mention it! His analysis of diagram 31 is a little off, but his points are well made.
The terminology "acoustical echo" is strange, and I don't think it survived. Instead, writers today would point out, as Nimzo mentions, that it can be important to gain tempos with checks and to use "zigzaging" in the attack. "Zigzaging" is what some call those Queen maneuvers on unguarded squares.
I've seen people deride the section on the "five special cases". Their argument is that there are many cases in the 7th rank; so why these? I think we should look at this section as Nimzo giving "the elements" (title of part 1, after all) of play in the 7th rank, and these are the most important exemplars in his view.
#2 I feel as you do that Nimzo had to follow up on the previous chapter's open files concept.
It seems to me that the entire "First Part: The Elements" of the book is a mixture of opening, middelgame, endgame, as opposed to a more concentrated exposition of each phase in turn. The advantage of such an approach is showing how the different phases of the game connect together. However, the disadvantage is that the novice may feel like the exposition is jumping around in topics.
An example of a more concentrated exposition of the phases of the game is "The Game of Chess" by Dr. Siegbert Tarrasch. Tarrasch, in that book, orders the exposition as a) rules of the game b) endgame c) middlegame d) opening principles e) various openings e) illustrative games. The disadvantage with Tarrasch's approach is the most people want to start playing the game after learning the rules! They will object to Tarrasch's remark that comes right before "various openings". Here is what Tarrasch says there:
"The beginner who has studied enthusiastically with many repetitions and has assimilated the foregoing subject-matter can now - but only now - start to play games with other people. ... I expressly warn him against trying to learn by heart the following openings [the 'various openings' section]. A terrible thought! He must thoroughly assimilate the *principles* and then, when he has played a game, he should study the application of those principles to the particular opening adopted. Thus he will discover the inner significance of the various openings."
Back to Nimzo...
I never noticed before that Nimzo changed terms here. In the previous chapter it was "evolutionary" and now it is "convergent". He used "converging" at the end of section 4 in the last chapter also, so it seems a synonym for him.
I like the way he presents diagrams that are the exemplars and then starts adding pieces to them to show specific play with respect to the exemplar positions. In this way he shows, without talking about that as a method, how one can think about patterns and do analogous reasoning. This is also one of the methods of "deliberate practice".
His examination of one way to think about diagram 31 is interesting. First considering the point g7 as the one to attack, because the White Rook directly attacks it on the 7th, he does a calculation to show it will not work. Then he turns attention to h7 as the point to attack. I find that many people do not consider that as a possible attack point because their visualization of the attacks of the White Rook stops at g7 instead of continuing to the edge of the board. For Nimzo this is so obvious (internalized) that he doesn't even mention it! His analysis of diagram 31 is a little off, but his points are well made.
The terminology "acoustical echo" is strange, and I don't think it survived. Instead, writers today would point out, as Nimzo mentions, that it can be important to gain tempos with checks and to use "zigzaging" in the attack. "Zigzaging" is what some call those Queen maneuvers on unguarded squares.
I've seen people deride the section on the "five special cases". Their argument is that there are many cases in the 7th rank; so why these? I think we should look at this section as Nimzo giving "the elements" (title of part 1, after all) of play in the 7th rank, and these are the most important exemplars in his view.