Theory is the erudite study and the philosophy behind the moves in chess.

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94 views

Are there “pure brute force” engines?

Is there a chess engine that just goes for brute force search, looking for a forced mating sequence + material advantage in a couple of moves? This would especially be interesting to "prove" some ...
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2answers
584 views

How I could defend/attack in this situation?

How I could defend/attack in this situation? I feel that I'm in a big trouble. [FEN ""] 1.d4 Nf6 2.e4 Nxe4 3.Bc4 Nxf2 4.Kxf2 d5 5.Bxd5 Qxd5 6.Ke1 e5 7.dxe5 Qxe5+ 8.Qe2 Bb4+ 9.c3 Nc6 ...
4
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2answers
255 views

How to Break Out of His “Great Wall of China”?

It's my move (white). I have no idea what to do. I feel like I'm going to get squashed to death. What would be my best move or strategy in situations like these? [fen ...
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3answers
635 views

How did I still lose with 1 piece advantage?

Throughout the game, I thought I had a positional and piece advantage, but I STILL LOST! What did I do wrong? (using Ruy Lopez btw) [FEN ""] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 a6 5. Bxc6 ...
3
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3answers
201 views

Where I can start to learn?

About 8 months I have a pretty interest for the chess, but I was looking for Where I can start to learn? becouse I feel confused When I search in google, I got a lot of info articles, books or videos ...
2
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2answers
147 views

I need to get rid of Black's light-square Bishop

I've self-taught myself Chess, and played against computers (as in the board shaped ones) and I quite quickly found an opening that isn't strong, but it is not bad. I'm fairly new at this "Algebraic ...
11
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4answers
2k views

Which notable players in chess history successfully used dubious openings?

I am reminded of a famous game between Karpov and Tony Miles where Miles played 1...a6 against Karpov's 1. e4 and still won the game. [FEN "rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq ...
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1answer
82 views

B50: Sicilian Defense 3. Bc4

First a bit of background: I really like playing the Sicilian Defense as Black and it is my preferred choice of action against 1. e4. I prefer the Open Sicilian with Dragon and Najdorf being my ...
3
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1answer
192 views

Kramnik - Karjakin in the FIDE Candidates 2014, was 8…f5 correct?

In the game between Kramnik and Karjakin shown below, the opening was a bit strange and the resulting position was odd. I am wondering, was 8...f5 correct? Was it a novelty of sorts or when did the ...
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3answers
199 views

What are the first moves chosen (White), by brute force chess engines?

Title says it all. Feel free to add comment, theory, or explanation. Just to clarify, this is only regarding turn 1 of White, and no proceeding turns after it.
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1answer
170 views

Did Aronian make a mistake in the opening against Anand in round 1 of the FIDE Candidates 2014?

Here is the game [Event "FIDE Candidates 2014"] [Site "Khanty-Mansiysk RUS"] [Date "2014.03.13"] [Round "1.3"] [White "Anand, Viswanathan"] [Black "Aronian, Levon"] [Result "1-0"] [WhiteElo "2770"] ...
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2answers
113 views

Has the King's Indian Defense been refuted at the Grandmaster level?

I know about b4 in the bayonet and the Kramnik-Kasparov games of course. I also know that Mr. Radjabov has been unhealthy (hope he gets better soon) lately. Thanks in advance, your site is awesome, ...
3
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1answer
130 views

Caro-Kann, Smyslov variation : Can Black punish early 5.c4 in this position?

Recently I have posted a question about declining the Marshall gambit in the QGD, and asked if Black can transpose into another solid opening, as one way of defense. After analyzing the first ...
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0answers
47 views

Queen's Gambit Declined: Alatortsev variation, is there a high quality resource covering this line?

I am working on my opening repertoire, and I need ways to dodge the Exchange variation of the Queen's Gambit Declined with Nge2. Many masters use the Alatortsev variation to do this. After the ...
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1answer
114 views

openings for white which don't involve a central pawn push

It appears that black has more choices with regard to openings rather than white. While white would typically start with either e4 or d4, or sometimes c4, black has numerous choices for each of these ...
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1answer
139 views

Pawn structure in king's indian or grünfeld

I'm trying out kings indian against d4 openings but there is one problem... I get mated. I can't defend after castling under the h7 g6 f7 pawn structure. Somehow it works as an opening with an ...
4
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1answer
108 views

Positional opening for Black

I have recently (two months ago) become very interested in chess, after playing it for about 10 years at a club, spending time on it only one evening per week. Previously, I did not think about my ...
2
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1answer
112 views

What is the best Black reply to 1. d4 in regards to getting an open game?

What is a good reply to 1.d4 that will give me an open game?
3
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2answers
109 views

Rauzer Attack, Sicilian defense - why not play 6…Nxd4?

I'm just learning on how to play Sicilian and none of the books I have at hand shows this move. So I consider, that this move is a mistake and there is some strong counter play on whites part, but I ...
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4answers
99 views

Push e and d pawns in semi open openings

I recently met the French defence as white which turned into the advanced version. In short, I got crushed in a humiliating way, kicked while lying and spat on. So now I am reforming and ...
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2answers
118 views

Sicilian with 1.e4 c5 2.c3 d5 3.Nf3?

I don't know much "Sicilian" theory, and decided to develop instead to defend e4. My opponent captured, and I got the pawn back with the obvious Qa4 check. Although he tried to start a queen hunt, she ...
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1answer
150 views

Is the pawns-only variant a draw?

In the pawns-only variant of chess, each side starts with 8 pawns and a king on the usual squares, no pieces, with other rules being the same as in regular chess, including promotion. While general ...
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2answers
175 views

Can you recommend a closed opening for black against 1.e4?

What is a good opening system for black that leads to closed play against 1.e4? E.G. - against 1.d4 I like to play the Slav & am looking into the Czech Benoni. I am looking for something similar ...
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6answers
543 views

Do any openings result in a lost game for black?

Based on this comment I'd like to know which openings, if any, are considered unplayable (i.e. lost) for black? My own understanding is that in some opening lines it's harder for black to equalise, ...
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2answers
112 views

Morphy Defence in Ruy Lopez

I don't get the point of Morphy's Defence in the Ruy Lopez opening: [FEN ""] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 If White's purpose was to exchange Bishop for Knight and take the e5 pawn after it ...
2
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1answer
129 views

How many materially equal positions are there?

Reading about the Shannon number, I see that there are about 1043 positions in chess, but how many of them are even? That is, materially (as an approximation). A position with one king vs 8 pawns and ...
4
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2answers
122 views

Why does Black play 10…a6 in the A39 variation of the English opening?

I observed that after [fen ""] 1.c4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3 Bg7 7.Bg2 O-O 8.O-O Nxd4 9.Qxd4 d6 10.Qd3 In many games, Black played the strange move 10...a6!? It has been ...
2
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2answers
90 views

Queen's Gambit Accepted with 3. Nf3

According to wikipedia in the main line of the Queen's Gambit Accepted White's 3rd move is: 3.Nf3: [FEN ""] 1. d4 d5 2. c4 dxc4 3. Nf3 Doesn't that pretty much turn the opening into a real ...
3
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2answers
141 views

What makes chess engines so good at chess?

Computers are thought to calculate every possible move. However, for eg. there are about 20 possible first moves and 20 possible responses to that and so by this logic the no. of positions after for ...
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2answers
164 views

How should black develop the dark squared bishop in the advance variation of the French Defense?

The following is the French defence, advance variation: [FEN ""] 1. e4 e6 2. d4 d5 3. e5 * My question is how Black should play his King's Bishop. Any time that Bishop moves the White Queen can go ...
3
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2answers
243 views

What are the key ideas for white in the Keres Attack (Sicilian Scheveningen)?

The Keres Attack (Sicilian Scheveningen) has the following starting position [FEN ""] [White "Keres Attack"] [Black "Sicilian Scheveningen"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 ...
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5answers
266 views

What is the benefit of making the first move with a Knight?

I knew that some moves from some opening can transpose to another.. but if I move my knight first, does it's have benefit to me since in my Houdini, it's shows lower value than I move pawn first.. ...
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3answers
202 views

Why does 6.Bg5 prevent 6…e5 in the Sicilian Najdorf?

In Gufeld's book, after 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5!, [FEN ""] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5! he writes: "In this way White solves three ...
4
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1answer
117 views

QGD :: should Black fiancheto his King's Bishop?

A common line in the orthodox line of the QGD goes something like this: [FEN ""] 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Here's the part that puzzles me. According to the database in 365chess ...
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8answers
395 views

Is there a single best move in every position?

If it were possible to analyse every possible outcome of a position, would there ever be a single move that could be considered "best"? I know that this is how computers evaluate positions, but they ...
2
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1answer
54 views

French :: exchange variation - but not quite

I had the following in a game [FEN ""] 1. e4 e6 2. Nf3 d5 expecting White to follow with Nc3 leading to the Two Knight's Variation of the French Instead, the game continuing with: [FEN ...
3
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4answers
247 views

1. e4 e6 2. Nc3 - how should Black respond?

I had White deviate from the French main line in a blitz game by playing: [FEN ""] 1. e4 e6 2. Nc3 Since this line is not discussed in the Wikipedia article on French defence I am thinking that ...
2
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3answers
103 views

How should Black defend against the Steinitz attack?

[FEN ""] 1. e4 e6 2. e5 This line of attack seems to break so many opening theory principles (don't move same piece twice, don't overextend, develop minor pieces ASAP) that I am surprised it's not ...
2
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3answers
313 views

What can I play against 1.d4?

I've been playing chess for some time and I've studied lots of theory, but I don't know what to play against 1. d4. I'm searching for something with good chances for black but without much theory. ...
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2answers
177 views

Is the Evans Gambit declined good for black?

According to this answer, Evans gambit is not popular anymore. I looked at it and I don't see anything wrong with it. I can't go over all the variations here, but you could look for an article or a ...
4
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1answer
100 views

How do you teach chess to a beginner / rookie?

Recently, I got some students (beginners) in chess, and I would like to teach them how to play but I don't know where to start! They already know how to move pieces and some concepts on how to play, ...
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2answers
248 views

How good is 1. e4 e5 2. Qh5 Nf6?

When I play online blitz, playing black, I usually answer 1. e4 e5 2. Qh5 with 2... Nf6!? 3.Qxe5 Be7. [FEN ""] 1. e4 e5 2. Qh5 Nf6 3.Qxe5 Be7 White often collapses quickly due to lack of ...
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3answers
156 views

maximum possible movement in a turn

I've read that for any position, there are on average approximately 35 possible moves. But what's the maximum number of possible moves for a position? Thanks, Ahmad
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3answers
153 views

Longest path for knight

Suppose the knight is on square X and he wants to get to square Y, and in order to do that he has to move N moves. how big could N be? Could that be solved using a mathematical equation? Say Nf3 ...
5
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4answers
324 views

Randomness in Chess?

I have had periods in my life when I became quite engaged in Chess. I am also a card player - particularly Bridge and Two Handed Pinochle (old game, not very popular these days). Oftentimes I get ...
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3answers
155 views

Endgame player vs middlegame player: Is the result inevitable?

I recently asked this question: Why Anand and Carlsen insisted on playing the same opening/defense FM Rauan Sagit answered: In my view, in terms of opening preparation, the Anand team failed to ...
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4answers
200 views

Do I have to follow the openings moves when the response is different?

This question concerns the opening. For example, in the Danish gambit: [FEN ""] 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 white reaches the desired position. But what happens if the ...
3
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5answers
272 views

Why Anand and Carlsen insisted on playing the same opening/defense

They played the Berlin defense and Ruy Lopez. Well the question is more like: why Anand insisted to play Ruy Lopez again and again. wouldn't be better if he had tried najdorf and nimzo indian earlier? ...
3
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1answer
210 views

Maximum number of queens possible

I was thinking about what is the maximum number of queens that can occur on the board after only legal moves. The theoretical upper bound would be 18, the original 2 queens plus all promoted pawns. ...
4
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3answers
224 views

Centre pawn vs. side pawn?

Chess theory suggests that pawns whose file is nearer to the central files are more powerful. This is somewhat obvious for the rook's pawn, which can attack only one square as opposed to the other ...