22

At a basic level, what we want from an opening and a defense, is: we want to be fighting for the center squares (1), we're trying to develop our pieces and get good squares for them (2), and thirdly, we want to have a safe king (3). This is as modest a expectation as one can have for a good opening. Now roughly speaking, there are two types of defenses (say ...


21

Here is a link comparing C++ to Node.js from this question on StackOverflow. To answer your question: C++, while more difficult to write, is way faster than basically anything else.


14

Some things that are probably part of the answer, but probably not complete and concrete enough: 1...a6 won't come. There is no threat to a pawn on e5, the knight isn't pinned, the only point of 3.Bb5 is to exchange it on c6. So black doesn't waste a tempo on forcing white to do what he was already going to do. On the other hand, black has a choice to make,...


12

Obviously black has violated principles such as: don't move a piece twice develop pieces However opening principles are just general guidelines and in very concrete positions like the one at hand they are of little use. There are many established openings where opening principles are broken, so nothing wrong with that. In the final position it is white's ...


11

You're playing a very sharp opening line that only works thanks to the option of playing 10...g5!. You should only enter this type of position if you're aware of what you're doing. Otherwise you'd be better sticking to quieter, easier positions. If you choose to play a theory-heavy line, then you should definitely know the theory first!


10

I do not know that I would say "happy", but in chess, there are pluses and minuses to every move we make, and on top of that, there are exceptions to many positional concepts. We see GMs move pieces twice in the opening all the time when there is a good reason. Now, as to that specific position, black is, indeed, somewhat behind in development, but has ...


10

The main reasons it is OK for black is that he is still down only one tempo in piece development, but he has traded off his bad bishop for white's good bishop, and his position is still very solid so he will catch up in development eventually. The downside is that white has more space. Black can eventually fight back with c5 after finishing his development, ...


9

Don't try this at home. ;-) First of all, a simple LiChess search gives this is B12 Caro-Kann Defense: Advance Variation, Tal Variation, i.e. it has even a name and is legit. Second, 8 games listed, with IMs playing it, so it's still rare. Third, standard Black move is Kb8. He doesn't even try to immediately throw everything except the kitchen sink at the ...


9

No, AlphaZero isn't open source.


9

Node JS isn't a language, it's a framework on top of Javascript. It's also not fast, certainly not compared to compiled languages like C++ or Java. Nor is JS easier to use than compiled languages, if anything it's far worse, especially for large complex applications. Of course for a lot of people who never learn anything but JS they think JS is easier to use ...


8

Overall, I wouldn't suggest it, especially for a beginner. There are better ways to fight for an advantage. By playing e3 first, you are allowing your opponent to do almost whatever they like on their first move. Are you OK with them playing 1...d5? Is that going to prevent you from playing c4? If that's going to be a problem, you may want to play 1.c4 first ...


7

A few things: 1) White's actually not wasting any tempi. He has to move his bishop out anyway (in order to castle). Then, once on b5, taking on c6 doesn't waste a tempo since Black has to spend a tempo recapturing. 2) The doubled c-pawns are more of a big deal than they'd be in, say, the Ruy Lopez Exchange variation. Since Black has a pawn on c5 instead of ...


7

Commitment (versus flexibility) indeed is the main reason for this piece of advice. In particular: The first moves are (usually) all about fighting for control over the center. The knights are superior to the bishops in that regard because from their "natural" development squares, they have access to 2 of the central squares (e.g. a knight on f3 reaches ...


6

I am pretty sure the first 10 moves are pretty ok, but after Kg2 you are supposed to play either 0-0 or g5 (maybe some other moves are fine too; fxe fxe 0-0 is also not too bad I suppose), but Kf7 looks weird. Generally, in this line black is indeed suffocating unless he sacs a knight on e5 to open up files in the middle and then attack the white king. I ...


5

This is an example for how it can go wrong for Black side. [Event "?"] [ECO "B02"] [White "Jacques Mieses"] [Event "Monte Carlo"] [Black "Frank James Marshall"] [FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/ b - - 0 1"] [Setup "1"] 1.e4 e5 2.d4 exd4 3.c3 dxc3 4.Bc4 cxb2 5.Bxb2 d6 6.Ne2 Nc6 7.O-O Be6 8.Bd5 Nf6 9.Qb3 Qc8 10.Nf4 Nd8 11.Bxf6 gxf6 12.Nh5 c6 13.Re1 ...


5

The line that you refer to is probably 1.b4 e5 2.Bb2 Bxb4 3. Bxe5 Nf6.. I recall some early opening books saying that this was a bad defence because it surrendered a center pawn. The more modern view is that Black does get a very fast development in this line which is quite dangerous. I gave up the Polish when this started to become well-known. Until then I ...


5

I'm the Technical Lead of Chessable and the exact person who integrated SF on Chessable. There are no license issues here because web app is not the same work as a Universal Chess Interface (UCI) chess engine. Technically you do have the code because the whole UI in JavaScript is being sent to your web browser. Check your Google Chrome network tab, you will ...


4

A lot of it is simply to create an imbalance. Nakamura has mentioned this before about a different opening B-for-N trade, and sometimes it is done without even getting doubled pawns in return, like an early Bg4 in the Slav then putting the pawns on c6 d5 and e6 to retain some control of the light squares. Even in the Caro-Kan Two-Knights variation you see ...


4

The main reason is that White does not want to face Nd4in many lines. They want to make sure they will "hurt" Black's pawn structure with Bxc6. Compare this line with others where the Black knight is actually pinned, like 3...d6 for instance. There, White has no reason to hurry and trade so quickly


4

Another reason besides what you stated: The Bishops can work from home. What I mean by that is when the e/d pawns are out of the way the Bishops are already influencing enemy territory.


4

This position is still very far from having a definitive character that would dictate the nature of best play. That is still perhaps twenty moves away. If you are already thinking that you have an advantage and just need to find a way in, you will not be playing objectively. Your position is fine, you will be able to develop easily, you have two Bishops, but ...


4

It’s difficult to assess how good a relatively unplayed opening like this when considered in isolation. However I feel it’s dominated by the English. I want to play 1.c4 first, as it's directly aggressive, and leaves the door open as to how I will develop the bishops. I am unlikely to play e4 for a while, as d4 can become weak, but I don’t need to play e3 ...


3

Because the Queen is so versatile, it is hard to give general rules, but you might try asking the question, which of my other pieces do I want her to cooperate with? She might combine with one of your Bishops to attack squares of that color, or with Rook(s) to control an open file. Queen and Knight can be deadly together because neither is restricted to one ...


2

If your opponent is the type to bring his own rope to commit a suicide, I would certainly go for Rb8 d6 Bd7 c5 and later a5 a4 setup, hoping knights will go off the board (on d5) as soon as possible ruining white's gueenside later in the style of Benko gambit, with equal material and stupid (but nice looking) bishop on g2 aiming to nowhere. Reasonable ...


2

This does not seem symmetrical to me. After 8...dxc6 you could have reached a symmetrical and very drawish position. Playing 8...bxc6 seems more ambitious. Seems like black will want to play d5 sooner or later to get rid of that backward pawn on d7 and to limit the white bishop on g2. Depending on what white does, this might require to play e6 and/or to ...


2

I would also add to what you wrote that you start with less valuable pieces, so you don't have to worry about them being exchanged. You wouldn't probably start with Rf3 if Bg4 pin was possible. Also bishop on c1 is active even from that square and it's often developed mainly because of the rook on a1. In quite some lines of Ruy-Lopez the rook is developed ...


2

Knights are better "skirmish" pieces than bishops. They are "powerful" (compared to pawns), but operate at short range. They typically need two moves to get to their best (strategic) locations(typically on the 5th or 4th ranks). So they need to get an early start. Bishops are "distance" pieces. I compare them to archers (and ...


2

What pops to mind are the Natural looking c6/Qc7; Nc6/Ne7/Ng6 and Bg4 is another development plan. Black needs to coordinate his pieces and place them on good squares to complete his development - as a Cat A player, that is how I look at it. The position is a little flat. Part of me is not crazy about 10...Bf5 11.Qb3 b6 12.c4!? c6 13.Nf1 Bg4 14. Bg5 and ...


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