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10
votes
2answers
968 views

Why is Na5 not played in this line of the French Defense, Advance Variation?

I find Na5 a good resource for black in this line of the french, profiting from the fact that white's b-pawn is binned to the bishop. As far as I can understand this position with my limited chess, I ...
2
votes
3answers
165 views

Ruy Lopez, Exchange Variation

[FEN ""] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 Theory recommends 5. ... f6. Why? What is the specific reason behind this move? How this move helps Black? Other than 5. ... f6, are ...
8
votes
5answers
283 views

Why does Fishtesting test Stockfish against itself, not other engines?

As I understand the so-called Fishtesting, people write patches, then try the patches against the current version of Stockfish. If the new version performs better, it's promoted to be the main version;...
1
vote
2answers
77 views

Options for following the Norway Chess tournament live

I've heard a new tournament format is being adopted in the new series of Norway Chess, where each drawn classical game is followed by an Armageddon game in order to conclude with a decisive result for ...
8
votes
1answer
156 views

Historical origin of the queen as a chess piece

As far as I know, chess was introduced at Europe from Arabia by a Spanish king: Alfonso X. I recently read an article in Spanish press saying the queen was also introduced as a piece in Spain. The ...
3
votes
3answers
215 views

Sicilian Defence, Dragon Variation

[FEN ""] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. O-O-O d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 What is White's plan & idea behind 12. Bd4 move?
10
votes
4answers
4k views

Is White controlling this game?

Which side is in a better position here : white or black ? Is White controlling this game as all rook, knight, bishop, queen are in open position now ? What are the chances for black to come back ? [...
6
votes
0answers
114 views

Chess database software for variants

For regular chess, I use SCID and it works well. It has database searches, position searches, player stats, and a nice compact file format (i.e. not PGN, which is inefficient and big). Is there any ...
4
votes
2answers
153 views

What should I do when the announcement of a tournament is violated by the… chief arbiter?

Some months before an official national tournament is held, there is an announcement of it which contains who can participate, some rules (e.g. no draw offers until the 30th move), etc. Since I was ...
16
votes
2answers
2k views

What should the arbiter and what should have I done in this case?

Recently, an official (FIDE-rated), tournament was held, where I participated, too. At the last round, the most critical one, I was black and my opponent white. Suddenly, in the middle of the game, ...
-5
votes
3answers
192 views

What are the rules of chess in a nutshell?

I believe the question How to start learning chess? is actually two questions only one of which is a duplicate. This question is a fixed up version of it which asks only the other one of those ...
21
votes
5answers
6k views

Should an arbiter claim draw at a K+R vs K+R endgame?

I was asked for first time to help at a non federated tournament for kids to arbitrate their games, played at 30 minutes with no increment time. It was a scholar tournament and they made mistakes as ...
9
votes
3answers
768 views

Why is c4 bad when playing the London against a King's Indian?

Recently I (rated ~1900 "classical" on Lichess) played the following opening: 1.d4 Nf6 2.Bf4 g6 3.e3 Bg7 4.Nf3 O-O 5.Nbd2 d6 6.c4 [FEN "rnbq1rk1/ppp1ppbp/3p1np1/8/2PP1B2/4PN2/PP1N1PPP/R2QKB1R w KQ - ...
8
votes
2answers
197 views

Openings in King of the hill

As you probably know, "King of the hill" (KOTH) is a variant of chess where one can win either like in classical chess or by putting the king in the central squares, namely d4, e4, d5 and e5, by a ...
-3
votes
1answer
63 views

What is the realistic depth in chess we can set in graphical user interface when we have hardware with 16 core processor with 32 threads? [closed]

I want know the depth we can set in 16 core processor and 32 threads time can be maximum set to 15 seconds. Please share your thoughts and ideas.
1
vote
1answer
123 views

Which opening requires the longest amount of chess moves? [closed]

For most openings that I play (e4 and d4 openings) I have observed that they take exactly 4 moves (e.g. Giuoco Piano Game without variation). C50: Giuoco Pianissimo, Italian four knights variation ...
4
votes
1answer
193 views

Are there any attempts at writing Stockfish MCTS?

As of time of writing, there is one major traditional engine using Monte Carlo Tree Search for its search algorithm - Komodo. The MCTS version of Komodo started out weak but gained strength quickly, ...
6
votes
4answers
357 views

Can I reply to an illegal move with checkmate?

I was playing with my brother, and we both had equal number of pieces. He carelessly moved his king in the direction of my queen. I was about to checkmate my brother, but he told that my mating move ...
7
votes
2answers
340 views

What to do if opponent has poor hygiene?

Are there regulations on what to do when your opponent has poor hygiene and it negatively influences your performance? I do not want to be disrespectful or shame anyone, but bad breath or body odor ...
2
votes
6answers
263 views

What is the reason (if any) for 1.e4 c5 2.Nf3 d6 3.Nc3?

As title above, what is the point of playing 3.Nc3 (before d2-d4) after 1.e4 c5 2.Nf3 d6? Compared to the “normal” 1.e4 c5 2.Nf3 d6 3.d4? [fen ""] [Variant "Standard"] [ECO "B50"] [Opening "Sicilian ...
15
votes
3answers
4k views

Term for checking piece whose opponent daren't capture it

What if any, is the term for a piece whose owner gets a draw by keeping up a relentless series of checks with it -- a paradox being that even if this player puts it en prise, the opponent daren't ...
1
vote
1answer
160 views

What’s the point of early …a6 move in Queen’s Gambit Declined?

As title above, what is the point or the main idea of a very early ...a6 Pawn move in Queen’s Gambit Declined? I see that the move is fairly popular at GM and even top level.
0
votes
1answer
98 views

Could Ding win this endgame vs Carlsen?

Could Ding win this endgame vs. Carlsen (at this point in the diagram), in the game played yesterday at Lindores Abbey? Without using engines, it seems logical to me to play 41.Re3 or 41.Rd3 (instead ...
0
votes
1answer
94 views

Which chess courses should I start with? [closed]

I know the rules and played with my friends but without any knowledge of opening tactics etc. And all material I could find online was not in an ordered manner . So can you suggest some courses I can ...
-6
votes
2answers
202 views

Is it racist that white pieces move first in a chess game? [closed]

There is a movement in chess endorsed by several grandmasters called “MoveForEquality”, which revolves around the idea that the black pieces should start first instead of the white pieces. The ...
26
votes
2answers
7k views

How many chess players are over 2500 Elo?

They say that there are currently about 1500 grandmasters. I was wondering how many chess players currently have "grandmaster strength".
2
votes
1answer
158 views

What is this opening/position called, and what is white’s best move?

[FEN "r1bqk2r/pppp1ppp/2n2n2/2b3B1/4P3/8/PPP2PPP/RN1QKBNR w KQkq - 0 1"] Do you know the name of this opening/position? Additionally, please tell me what white’s best move is in this position. I ask ...
3
votes
2answers
106 views

Trompowsky: why does 1.d4 Nf6 2.Bg5 d5 3.e3 e6 score so highly for white in master games?

I'm trying to find a suitable response to the Trompowsky using LiChess. I saw the following line, which looks like it might transpose into more familiar QGD territory. [fen ""] 1.d4 Nf6 2.Bg5 d5 3....
1
vote
1answer
42 views

What are the pairing regulations for a single-elimination (knockout) tournament?

Here are the pairings for the 2017 FIDE World Cup. The above pairings are for 128-player knockouts. I can't get the way the pairings were generated. I want to be able to generate pairings using the ...
3
votes
2answers
243 views

How do I determine the bye player in a given round of a round-robin tournament?

The Berger tables for round-robin tournaments state: Where there is an odd number of players, the highest number counts as a bye. As far as I understand this statement correctly, this means that, ...
3
votes
0answers
72 views

How do you calculate error bars on elo rating? [closed]

In season 14 of TCEC, Stockfish defeated Leela 50.5-49.5 in a 100-game match (the closest possible winning margin). Using an elo calculator such as this one, we can see that the elo difference between ...
3
votes
0answers
101 views

Deep Fritz 14, Show Plans-How to activate?

Does anyone who uses Deep Fritz 14 know how to activate "Visualize Search," aka "Show Plans"? I went to File, Options, and Engine. "Show Plans" is one of the options, but it won't let me activate it. ...
3
votes
1answer
128 views

Where can I find these mentioned chess problems?

In his article on “The Horse Concoction", Tim Krabbe mentions retrograde analysis questions that center around checkmate and involve 10 rooks, knights, and bishops. The 10 rooks problem is one that he ...
1
vote
0answers
32 views

What's a good way to learn openings when coming back to chess as a former 1400-1600 player? [duplicate]

my question can be seen in the title. I used to play chess competitively in my teenager-years and would like to come back to it now. The important stuff is still in my head and I am not doing too bad ...
2
votes
1answer
76 views

Annotations to Fischer vs Sherwin,1957

I have a Russian translation of Bobby Fischer's My 60 Memorable Games. In the Game 1 (http://www.chessgames.com/perl/chessgame?gid=1008366) in the annotations given after Black's 4. ...Ng8-f6 the ...
11
votes
1answer
966 views

Eight pawns vs seven exercise: how to win?

I had been thinking about exercises to help players <1400 gain confidence. For instance, they should feel confident they can always win with queen and king vs king, or rook and king vs king, even ...
0
votes
2answers
198 views

Regarding The Horse Concoction-A Retrograde Analysis Question

Long ago in 2000, Tim Krabbe presented Harry Goldsteen’s “The Horse Concoction,” presented here on the Internet, which some of us know about. Take an empty board. Put white pawns on b3, b6, h4 and ...
8
votes
3answers
2k views

Is it OK to look at the list of played moves during the game to determine the status of the 50 move rule?

There are some positions in which you need to know how many moves have been played without pawn move or capture. For example: [FEN "1R5K/8/8/8/8/8/7R/k7 w - - 98 1000"] (1R5K/8/8/8/8/8/7R/k7 w - - ...
11
votes
8answers
2k views

(For training purposes) Are there any openings with rook pawns that are more effective than others (and if so, what are they)?

(Originally I hoped a lengthy prologue would not be needed here, but some of the answers and comments have led me to write one so that the purpose of the question is clear, thus this is now much ...
4
votes
3answers
408 views

How to play vs. 1.e4 e5 2.Nf3 Nc6 3.Bc4 d6?

As title above, how to play vs. 1.e4 e5 2.Nf3 Nc6 3.Bc4 d6? I see that this move (3...d6) is generally considered inferior in books, or not even mentioned in books about 3.Bc4, but I cannot see a ...
5
votes
2answers
253 views

Leela Chess Zero - UCI engine

What is current use status of Leela for practical player? Is it already working well as UCI? Could anybody give some insight on strength with various thinking times, especially in analysis mode? As ...
6
votes
2answers
148 views

Has anyone other than GM Axel Smith and GM Hans Tikkanen had success improving their chess through the “Woodpecker Method”?

The Woodpecker Method was introduced in the book Pump Up Your Rating (Google Books) by GM Axel Smith (FIDE), who was inspired by a training method used by GM Hans Tikkanen (FIDE), who used it to ...
4
votes
3answers
259 views

To what extent (if at all) is the new Komodo 13 MCTS an AlphaZero Lite?

The new Komodo 13 MCTS has been announced with the claim that: Komodo 13 MCTS thinks like no other chess engine in the world. Inspired by the ideas of AlphaZero and Leela, Larry and Mark set out ...
4
votes
1answer
101 views

Winning plan for black in this line of French Defense: Advance Variation Main Line

I play the French Defense as both white and black. I often play this line with black suggested by Korchnoi if I am not wrong. I have found a way to prevent the sudden b4, via Bd7 (if 8.Rb1 Bd7 9.b4 ...
0
votes
1answer
84 views

How would I train like Bobby Fischer did? [closed]

As the title suggests, I want to know how to train like Bobby Fischer did, along with what books he read during his chess training. Remember, keyword is TRAIN. I don’t want to be like him, as that is ...
4
votes
3answers
161 views

Why is 5. f5 so necessary in the Dzindzi-Indian Opening/Modern Defense: Pterodactyl, Beefeater Variation?

I have played a couple of games as black with this line. It is a simple plan: to put presure on the weak c3 and c4 pawns. This line is mainly known as the Dzindzi-Indian Opening, according to the ...
3
votes
3answers
126 views

In Caro-Kann Defense, what are the differences between 3. Nc3 and 3. Nd2?

After 1. e4 c6 2. d4 d5, what are the differences between 3. Nc3 and 3. Nd2? It seems 3. Nc3 is more popular, though after 3. ... dxe4, I failed to see the difference.
9
votes
1answer
131 views

How much worse do GMs play in their blitz and bullet games?

How much of a skill drop is there when a GM plays a blitz game or a bullet game versus rapid and classical? What I mean is, imagine if Carlsen was given 1 minute to play in, and he played against ...
2
votes
1answer
254 views

What is a pure checkmate?

Recently I heard something about pure checkmate. This is a special kind of checkmate where each of the squares around the king has to be covered by just one single piece. One simple example of this ...
1
vote
3answers
138 views

Is this KBPP vs. KR position a draw or a win with perfect play?

I played a game on Lichess today as white, and me and my opponent reached this interesting endgame position. Note: It is black’s turn currently. The board is shown from White's point of view. [Title ...

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