I would like to write my personal opening repertoire {as white: 1. Nf3, ... and goes like 1. Nf3, d5 2. g3, ... towards KIA with x. e4 etc., 1. Nf3, Nf6 2. d4, ... towards Torre attack, 1. Nf3, c5 2. c4, ... and as Black: Alekhine Defense, 1. d4, d5 2. c4, c6 3. Nf3, e6 4. Nc3 (I like 4. e4...), dc4!? or Chigorin Defense, 1. c4, Nf6 (1. ..., c6) 2. Nc3 (2. d4, e5 and if 2. g3, c6 and 2. Nf3, c6 or 2.. .., d5), e5 3. g3 and then 3. ..., Bb4 (ECO: A22) or 3. ..., c6!? (ECO: A23)} in a computer program (for totally obvious reasons...) but preferably in the very convenient trees-branches form... If unavoidable, I  would use the Fritz form of course.

 Could you give exact (I am a little-bit dummy and slow-learner...) advices how to perform this important task? Thanks!!!

Chessbase is a excellent for this. You create a Repertoire Database, then create a page for each major variation and link to model games. You can create diagrams or write commentary, and it alerts you when new games are played in your lines.

Another good tool is Chess Openings Wizard (a.k.a. Bookup). It uses a 'tree format' to organize your moves and handles transpositions gracefully. It lets you test how well you know your opening and computer-check it for imperfections.

Many players use both tools as the approaches complement each other. If you want step-by-step instructions go here and read the two repertoire articles.

likesforests wrote:

The method depends on your tool.

Chessbase is a excellent for this. You create a Repertoire Database, then create a page for each major variation and link to model games. It does things like check when your games leave book and alert you when new games are played in your lines.

Another tool is Chess Openings Wizard (a.k.a. Bookup). It uses a 'tree format' to organize your moves and handles transpositions gracefully. It lets you test how well you know your opening and computer-check it for imperfections.

 Thank you very much! Much indebted!

 I'll see of course about Chessbase (what's about Fritz?) but could you tell me something more about this Chess Opening Wizard/Bookup tool? It was unknown to me and -I suppose- it's not well-known at my country. Purchase is easy enough? What's the producing company? What's its price?

Chess Opening Wizard is very popular among opening enthusiasts and strong players. It's produced by Mike Leahy, who is always overhyping some new product, but this tool happens to be a real gem and there's a supportive user community on the private forums.

There's an Express version that has the basic features needed to create a repertoire for $50... it will get the job done. But, there are annoyances such as limited computer analysis (no "backsolving") and you can't even get an accurate count of how many positions your repertoire contains. The Pro version has the annoyances removed but costs $200 or so. Either version allows you to write add written / audio / video / animated commentary and of course to train against your repertoire.

I happen to be an Express user but I use Chessbase to fill in most of the features that the Express is lacking. Note, when you sign up to his site you are likely to be offered a free 1-month trial and you are likely to be offered 1-time-only discounts. And they really will only be offered that one time. Unless your spouse happens to sign up a week later. ;)

http://chessopeningssoftware.com/

 I have already visited this site via Google search. The Pro version costs only 147 USD but there is need for a credit card and I haven't any. I'll see what I can do...

 The Professional version seems a great tool indeed!! Who's this Mike Leahy guy? When he did create this program?

 Thanks again!

What's about Fritz versions?

cunctatorg> Who's this Mike Leahy guy?

A programmer and once an amateur (USCF Class B) chess player.

cunctatorg> When he did create this program?

I'm not exactly sure. Bookup... must be many years ago. Chess Opening Wizard (a modest update) maybe 9 months ago.

cunctatorg> What's about Fritz versions?

It stands to reason it would offer fewer capabilities than Chessbase... but I own the Chessbase GUI, not the Fritz GUI, so I can't say what Fritz has.

 Thanks... I'll certainly see what I can do! I don't like credit cards but life and reality are changing!...

 Caution fellow chessplayers!

 It came to be a very useful and important topic indeed!

 Iff (if and only if)

 you do understand -in some measure- the game of chess (which is one thing...)

 and

 how to play chess (which is another thing...)

 then you must not underestimate opening preparation

 and choice of the appropriate -for you, not for Judith Polgar!- repertoire...

 Paper and pencil is insufficient-inadequate for this task!...