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14 views

What are these chess.com figures from my English Opening game?

I am asking something that chess.com shows about the English Opening, based on a game that I recently played on chess.com Chess.com showed the following figures: 1.c4 e5 .. 2.g4 e4 9.6 5.8 -White:...
4
votes
1answer
92 views

Are there any gambits which yield an advantage for the side down material?

For this question I'm interested only in gambits that: Are real gambits. That is, the side that's risking the material actually ends up down material + cannot count on winning the material back. This,...
11
votes
2answers
4k views

Why are there few or no black super GMs?

In the history of FIDE chess competitions or rankings, why hasn't there been a black super GM (2750+ elo)? What could be the hindrance or what is it that the black players are not doing right that ...
19
votes
3answers
6k views

Why aren't there any women super Grandmasters (GMs)?

In chess you don't need to be physically strong. Well, you need some kind of endurance, but is it the real reason why there aren't any super strong women GMs? Yes, I know about Hou Yifan and Judit ...
6
votes
1answer
149 views

How is Buchholz score calculated in a Swiss tournament?

I would like to know how the Buchholz tiebreak system works, and how it is calculated, taking into consideration other factors such as bye, no show (default win), etc.
2
votes
2answers
144 views

Would a professional level player put their queen in danger of capture from the opposing queen with protection?

Every now and then I will move my queen into a position that puts it in position to be captured by the opposing queen. Sometimes my opponents takes it and I capture their queen immediately. Also, ...
3
votes
0answers
28 views

What is the format for USCF's Golden Database?

I was wanting to collect some statistics about players, and also just easily update player ratings for my local club. I tried the web crawls on USCF's Member Services Area (even using the thin pages ...
0
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0answers
32 views

Possible ways to end a game of chess [duplicate]

How many possible ways are there to win a game of chess besides checkmate, resignation, timeout and disqualification.
2
votes
2answers
98 views

Attempting to create a retraction puzzle

I'm trying to create a retraction puzzle, but I'm not sure whether or not it is sound. I'm not sure where to find resources on how to make a retraction puzzle. I have two related questions- 1-Is my ...
11
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0answers
96 views

How do age and initial rating correlate to decline in playing strength with age?

The current Rausis phone cheating scandal saw a player with an initial rating of about 2500 in his 50's improve by about 200 rating points in 6 years. This improvement was remarkable because older ...
19
votes
3answers
8k views

What are “full piece” and “half piece” in chess?

I'm reading Kasparov's Deep Thinking and I came across this sentence: In one computer championship, a machine blundered a full piece early in the game but its opponent declined to capture it. ...
7
votes
3answers
3k views

Is there a good program to play chess online in ubuntu?

I really missed playing chess with someone who know how to play, I am looking for a good program to play chess online from ubuntu computer. Any Ideas?
2
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0answers
38 views

Stockfish on Android Question

I recently downloaded Stockfish 10 on my android phone and after unzipping the rar file, there were three separate engine binaries and I am wondering which one would be the strongest one to use. The ...
3
votes
0answers
82 views

Record for most stalemates in one?

Is there a known record for the most possible stalemates in one in a legal position, for with and without promoted pieces? I have gotten some results out of my own work. For without promoted pieces, ...
4
votes
1answer
73 views

Leela Chess PUCT Mechanism

How do we know w_i which is not possible to calculate using the tree search only? From the lc0 slide, w_i is equal to summation of subtree of V ? How is this equivalent to winning ?
1
vote
1answer
233 views

Novice - Capitalizing on players not knowing their openings?

I am a 1400-rated player currently working on my theory and understanding of openings. I am good at learning lines, much more so than others at my rating. But I'm less sure on where/how to learn the ...
16
votes
4answers
8k views

Why do players in the past play much longer tournaments than today's top players?

Looking through the history of chess we find tournaments that are significantly longer than today's, e.g. London 1899 - 15 players, double round robin New York 1924 - 11 players, double round robin ...
1
vote
3answers
194 views

Are there any tournaments that treat less-represented groups preferentially?

These less-represented groups could be women, transgender players, etc. As of time of writing there's only one woman in the world's top 100 players by rating, and I don't know if there's any ...
13
votes
2answers
6k views

Bad Stockfish evaluation

This is the study [fen "3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P4P/PPBK4/8 w - - 0 1 "] As you can see, Stockfish gives an absolute decisive win for black, though it is clearly a draw!! Check it out ...
1
vote
1answer
62 views

How to stop Stockfish analysis?

I am using Chessbase 13. I would like Stockfish to stop analyzing until I make it start again. What happens now is that I make it stop, and as soon as I go on to the next move, it starts analyzing ...
2
votes
2answers
192 views

In Swiss tournaments, is it common to play weaker players when playing White?

I was looking at the statistics for my tournament games in SCID, and found something surprising. When I played opponents rated under 1000, 13 out of 15 times I've had White. Conversely, when I played ...
1
vote
2answers
259 views

Are there any rules for transgender players in chess?

Wikipedia's article on transgender people in sports indicates there's considerable controversy about male-to-female players competing in women's competitions. The controversy is over physical prowess ...
1
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2answers
235 views

How to “bore your opponent to death”?

“The Caro-Kann has often been maligned for being dry and boring, played by those wishing to bore their opponents to death.” – IM (WGM) Jovanka Houska Are there other defenses in which black can bore ...
16
votes
2answers
1k views

What is the origin/history of the traditional piece values?

Almost everyone knows the standard rules of thumb: a minor piece is worth three pawns, a rook is worth five pawns, and a queen is worth nine. (I’m aware that this is debated; in particular many ...
5
votes
1answer
246 views

Converting from Algebraic notation to Coordinate notation

I saw this thread: Converting square notation to algebraic notation programmatically Unfortunately, it's the reverse of what I need to do. Given a FEN and an Algebraic move, I need to generate the ...
3
votes
2answers
157 views

Looking for an old problem that I can't quite remember

I remember seeing a chess problem once that I cannot find. I think that I saw it in a YouTube video, but I seem to find it again. The theme of the puzzle, I think, was something like caging in the ...
4
votes
1answer
66 views

How can I use pgn-extract to remove a game from a pgn file when there is an illegal move?

How can I use pgn-extract to remove a game from a pgn file when there is an illegal move?
0
votes
1answer
85 views

What to choose to play as black if you play King's Indian Attack as white?

I am around 1700 - 1800 player on chess.com, mainly playing 3+2 and 5+5 games and as white I always play KIA, but what I have noticed recently is that with white my score is much better that as black -...
16
votes
3answers
5k views

Was Wolfgang Unzicker the last Amateur GM?

Wolfgang Unzicker was a German GM, rated about 2550 and worked as a judge. In the sense of holding down a job while playing, he was an "amateur" player. So was Unzicker, a GM in the 70's, the last ...
0
votes
1answer
79 views

Can you wait and then perform an En Passant capture? [duplicate]

I am new to chess, so sorry for this obvious question. I was surfing through the web and learned the en passant rule. In this question they say "You cannot wait a few moves and then use the en passant ...
6
votes
1answer
228 views

Are there any known examples of spurious strong chess openings, which have been determined to be dubious with the introduction of the first engines?

I'm curious about the history of chess openings. Nowadays there is a lot of theory about what opening moves are considered mainstream and (near) optimal, such that either side can keep up with their ...
2
votes
0answers
55 views

Analysis of chess by Philidor in PGN

Where can I find games annotated by Philidor in his book in a PGN file?
1
vote
0answers
19 views

Using Arena (Linux version) with unequal time limits

I use Arena with different engines to study different positions. One thing I haven't figured out is whether it's possible to use Arena to play against an engine where, for instance, I give the engine ...
3
votes
3answers
154 views

How to efficiently memorize games?

I want to memorize some games so that I can replay them in my mind without a board. The reason for this is that I think it could be helpful for improving my strength. I want to be able to fully replay ...
1
vote
1answer
109 views

Which is better, K+QRRBBNN or K+RRBBNN + 8 pawns?

I think that this question really can be answered rigorously with good analysis. It is opinion-based but not completely since some results in this direction can be obtained, and strict and general ...
1
vote
0answers
36 views

Extracting “D” in SCID vs PC Analysis

Adding to this question, Scid PGN analysis using Stockfish, I ran a batch analysis using scid. Now, I want to extract only the "D" diagrams. How can I do this? Thank you for your advice.
9
votes
4answers
7k views

Losing the queen and then winning the game

Many years ago, I was on a mountain with some people. I was very young then, between 15 and 17 years old, I think. Some older people came and one of them started to play chess with me. I cannot ...
5
votes
1answer
128 views

Chess principles for beginner [closed]

I'm trying to put together a flyer of the golden rules in chess for kids that are absolute beginners. I noticed that they ran into the same trivial mistake that could be easy to fix with a simple ...
4
votes
2answers
149 views

Strategy for next move in a crowded situation

White is in the presumably better position in the situation below. However, under such conditions (e.g. there are tight formations of many pieces on the board), I find it usually hard to 'breach' the ...
0
votes
2answers
521 views

Most possible movement by the losing side in a zugzwang position

Usually, in a zugzwang, the idea is to limit the number of moves that the opponent can make so that they will have to make a bad move. But what if we decided to give them lots of freedom, given that ...
5
votes
3answers
1k views

The difference between Rad1 and Rfd1

I've always wondered, what are the main tactical and strategic differences between Rad1 and Rfd1 (or Rad8 and Rfd8 as black)? I know it's a subtlety, but my guess is there are some common principles ...
3
votes
2answers
892 views

I played my first (rapid) tournament recently and I wanted to calculate my ELO

According to FIDE regulations I should calculate the average of my opponents and just plug it here: https://ratings.fide.com/calculator_rp.phtml. I scored 5/9 but a couple of players didn't have ...
3
votes
2answers
1k views

What is this opening trap called, and how should I play afterwards? How can I refute the gambit, and play if I accept it?

I played a short and funky game as Black on Lichess not too long ago, in which I fell victim to a gambit trap that caught me totally off guard. Due to the mental blow that I received, I didn't play ...
3
votes
1answer
185 views

Short and long term plans in a closed game in the Sicilian Defense

Today, I have played a game as Black. I reached this position, with Black to play: The position, as you can see, is closed. The truth is that I had difficulty finding a plan here, considering the ...
1
vote
1answer
91 views

Leela chess zero weight files

I'm using Leela chess zero for a couple of days and found a couple of weight files here. But what is the place to be for weight files? I can imagine that lc0's strength is determined by the weight ...
0
votes
1answer
105 views

Games that illustrate attacking themes

I have recently made an agreement with a bunch of highly interested but still inexperienced players and I will become their trainer. My plan is to have 1-2 meetings per week with them to talk about ...
3
votes
1answer
131 views

How does Allie's search algorithm work?

Allie is a strong engine that's looking competitive with the top ones (Leela Chess Zero and Stockfish). It's supposedly based off AlphaZero, but works differently. As far as I understand it, the most ...
1
vote
1answer
62 views

Enable pondering with Leela chess zero

I just got Leela Chess Zero up and running inside docker using this guide. Added a couple of weights from here Now, when I run leela $> lczero -w path/to/weight/file go info depth 16 nodes 435 ...
4
votes
3answers
230 views

Maximum number of ways to get out of check

What is the maximum number of legal moves in a legal position, given that the player is in check? It's easy to see that 43 is an upper bound. Let's suppose the white K is in check along a diagonal by ...
2
votes
1answer
89 views

How to use opening books on mac/linux

I would like to use opening books for my stockfish chess engine, but I'm not sure how to do this. As far as I understand stockfish doesn't support these, so I though I setup a system next to stockfish,...

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