All Questions

3
votes
1answer
55 views

Glicko 2- Calculating match-by-match or batch of matches?

I'm looking to implement a Glicko 2 library in my application, however the two libraries I'm considering are different. Firstly, they produce slightly different results for the same dataset (the ...
21
votes
3answers
6k views

Is it legal to play a move without hitting the clock?

In the game Andrey Esipenko - Nihal Sarin (2018 World Blitz Championship), after 7. Qb3 c4 8. Qc2 Sarin plays 8... Bf5, and before he hits the clock, Esipenko plays 9. Qc1, but since Nihal has not ...
4
votes
2answers
177 views

Rating system for 5000 players

we belong to a state in India with over 5000 active players. FIDE rating tournaments and FIDE rated players are here but we wish to start a new internal rating system like the USCF or ACF rating ...
0
votes
3answers
135 views

How should I play as White if Black Defends the Tartakover QGD without …h6?

This question is related to another I just posted, but it is actually a different question: if Black Defends the Tartakower QGD without an early ...h6, and I am an Anti-Tartakower–Makogonov–...
2
votes
1answer
74 views

Why 5…h6 in the Tartakower Queen's Gambit Declined and not in the Orthodox Variation?

Why is the Tartakower Variation of the Queen's Gambit Declined almost always predeced by 5...h6, while in the Orthodox defense an early ...h6 is almost never played by Black?
1
vote
1answer
54 views

Is it possible to configure SCID to use English descriptive notation? [closed]

I'm going through a classic book (Reti's Modern Ideas in Chess), which uses English descriptive notation rather than algebraic notation. I see there is an online resource which has converted the book ...
12
votes
2answers
1k views

Is it allowed to talk to your opponent in a tournament game?

Suppose my opponent in a tournament was running very low on time, and after move 40, presses the clock and leaves the board for a while, falsely believing they will get extra time on their clock. ...
-1
votes
1answer
69 views

Confusing question about the “Pawn” [duplicate]

I enjoy playing chess and thought that I knew all of the "rules"??? However, I just found out now something interesting, though very confused regarding what exactly the "Pawn" is able to perform??? ...
-1
votes
3answers
269 views

What is this opening, can't remember name, driving me crazy

Image attached. May not be exactly right but looks something similar to this! Thanks]1
7
votes
2answers
306 views

Is there a reason AlphaZero hasn't been allowed to learn for longer?

Why don't the developers of AlphaZero let it learn for days, or even months on end? Wouldn't its neural network become much stronger, at the cost of just occupying some computational resources for a ...
15
votes
5answers
2k views

Assessing an early c4 against white's Stonewall structure

I made a horrible decision as black in a game, and I do not understand why it's incorrect. [fen "rn2kb1r/pp2pppp/1q3n2/2pp4/3P1P2/2PQPN2/PP4PP/RNB1K2R b - - 0 1"] I played c4, Stockfish considers ...
7
votes
3answers
251 views

Punishing player for indicating moves to other team players

I am arbiter myself, but I don't know how to treat player in team matches who try to indicate other players of their team what move to play in position they are in. If they won their game I might ...
9
votes
5answers
293 views

Examples of forced stalemate

The usual case one often sees specially in blitz play is when one side (usually the winning) mis-plays and then stalemate occurs with the losing side dodging a loss. But are there positions where ...
3
votes
3answers
142 views

In the English Opening, where should the d-pawn go?

Whenever I play the English Opening, I usually try to achieve a c4, d4, e3 pawn structure. However, in this video by STL chess club, the instructor recommends playing d3 (and possibly e4 later) to ...
2
votes
1answer
93 views

Master blindfold chess in 6 months [duplicate]

I want to be able to play entire games blindfolded, atleast at the strength that I can win against beginner players. My current ELO is around 1800. I usually manage to play ok moves up to move 20, ...
1
vote
1answer
103 views

Why might this supervised engine make mistakes based on an example game?

I am developing in my free time a python-based supervised chess engine. It is trained on past games to detect who wins (only games without draw), then it proceeds as follows: 1) find the top 4 moves ...
10
votes
2answers
3k views

What was the first chess engine that could beat the world champion on a standard desktop?

What was the first chess engine that could beat the world chess champion when running on a standard desktop playing at standard speeds (i.e. not blitz chess)? For concreteness, say a $1000 PC.
-3
votes
2answers
141 views

Which is the most popular and crowded chess server?

Which is the most popular and crowded chess server? I'm new at computer chess, and want to start playing at servers, but I do not understand where I have to play. I am hearing about freechess, ...
4
votes
2answers
188 views

Can anyone recommend a Chess platform that, well, you better read further

I thought I might take a minute to share a project I started about 20 years ago. Essentially, I used my ChessMaster program to make a "Chess Explorer". In 1998, I noticed I could add notes into ...
0
votes
1answer
241 views

Chess GUI recommendation for linux [closed]

Which chess GUI will be good for Linux. I have tried a lot of GUI's, but as I am new at computer chess, I have no idea about pros and cons of chess GUI's. Which is chess GUI will you recommend? Is ...
-1
votes
4answers
97 views

In the middlegame, can one avoid compromising the balance one's opening has achieved? [closed]

A polite duplicate asked last week by @57Jimmy mentions an incidental matter I find interesting: But when all the pieces are out, well placed, and I have castled, I have no idea about what I should ...
7
votes
2answers
523 views

Why do top GM's “retire” from chess? [closed]

After Kramnik's recent announcement, Nakamura also said in a chess.com interview that he will retire from chess at age 40. I am curious why a super GM feels the need to "officially retire" from chess ...
4
votes
2answers
124 views

What are the similarities and differences in pawn Structure from the Scandinavian and the Caro-Kann?

It seems both openings have the Capablanca Pawn Structure with c6 and e6 I'm curious about where the similarities stop and what are the optimal pawn breaks.
1
vote
2answers
220 views

Why does lichess ban players? [closed]

Few days ago I was watching a game review on lichess and found out one of the player's account was banned. Any idea why lichess does that?
2
votes
2answers
225 views

Making the giuoco piano interesting as white [closed]

Does anyone have advice to give against the giuoco piano ? I find this opening boring for white after 3... Bc5 and I'd like to find a way to keep playing the italian without risking to play a boring ...
17
votes
2answers
3k views

What does “TPR” mean in chess tournament reports?

I usually find in reports like this (and many others) something like: ... with a TPR of 2551 ... I would like to know its meaning, and also what it stands for.
3
votes
1answer
142 views

How does Stockfish ensure an incremental change made is beneficial?

Does Stockfish's testing framework get the new engine to play the old engine many times in a match? Since Stockfish thinks on each move according to a time limit (and not a depth limit, which gives a ...
10
votes
3answers
220 views

LiChess puzzle 87510: How much calculation would a strong player do before playing Bg4+ when white has a range of (all losing) responses?

LiChess puzzle 87510 has the following position: [FEN "r1b1k3/pp4R1/2q3RQ/4p3/5P2/bP2P3/2P1K2P/8 b - - 0 1"] The solution is 1...Bg4+, after which white has 6 legal moves: 1...Bg4+ 2. Rxg4 Qxh6, ...
2
votes
1answer
139 views

Can you claim a draw, after the position has changed, if threefold repetition occurred earlier?

I understand that when the same board position occurs three times in a game, with the same player to move, and having all the same possible moves, the game may be claimed as a draw by threefold ...
4
votes
3answers
178 views

Isolani pawn question

After reading Chess structures of Mauricio Flores Rios, I have some initial questions on the Isolani (or isolated queen pawn). The author shows this diagram: Latee, he proceeds to giving White and ...
0
votes
1answer
77 views

In what way is it allowed to alter tournament pairings in favor of a player?

The FIDE Rules for Swiss Systems state: C.04.2 A It is not allowed to alter the correct pairings in favour of any player. and then further state: Where it can be shown that modifications of ...
6
votes
3answers
94 views

Capture the c-pawn, so the opponent has an IQP but improved development, or let them push the c-pawn and form a queenside majority?

This dilemma occurs in a variety of positions. [FEN "r1bq1rk1/pp1nbpp1/5n1p/2pp4/3P3B/2NBPN2/PP3PPP/R2QK2R w KQ - 0 10"] Here, it's white to move, and white has to choose between: capturing black's ...
2
votes
2answers
133 views

Scotch 4 Knights with 4… d5

If black 'mirrors' whites 4. d4 in the Scotch 4 Knights and white wants to play sharp, aggressive moves. what would be the best move? I know that chess engines like stockfish, GNU Chess etc. would ...
1
vote
1answer
91 views

General advice for middlegame [duplicate]

This is a very basic and general question (and my first on this website), so feel free to tell me if this is inappropriate. Besides specific strategies and opening sequences, there are some fairly ...
2
votes
1answer
118 views

Pawn tension in the Caro-Kann

Very often, I find myself playing the Caro-Kann and encountering positions like this below (especially note the pawns on the columns c and d): I do have read that knowing what to do (capturing or ...
1
vote
2answers
85 views

In online chess with long time controls, does having a title encourage opponents to cheat against you? [closed]

I was looking through the top classical players list on LiChess, and I'm gradually improving. I noticed I'm catching up with IM Eric Rosen, which I found surprising (I'm nowhere near that strong). ...
1
vote
1answer
125 views

App Mis-calculated Checkmate?

How is this checkmate? The King isn't even in check! Am I missing something, or did the chess app goof up?
3
votes
3answers
228 views

What can I learn from my “80 average centipawn loss” game, which I thought I played well?

In a LiChess game (Vakeesh vs. becky82), during the game I thought I played well, and won as black without and real complications. Here's the game: [fen ""] [Event "Rated Classical game"] [Date "...
23
votes
1answer
5k views

Is it bad etiquette to decline a draw offer when participating in a simul?

On LiChess, FM knightprince gave a simul where I participated (our game). I blundered a pawn played a pawn gambit, but managed to complicate things and won it back. Afterwards, the game would have ...
3
votes
1answer
81 views

How does “go mate <x>” work in UCI

In the UCI documentation, it says mate x search for a mate in x moves However, I believe this should say "search for mate in x plies", as plies are used in most of the protocol. I can ...
2
votes
3answers
279 views

How to notify check when a player leaves himself in check

I'm learning to play chess. Twice we had a situation where the white player moved a piece that was blocking the black Queen from checking the white King. There was no move available to announce "...
0
votes
1answer
91 views

Sicilian Najdorf, Sozin Variation [duplicate]

e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 1) For 6. Bc4 Black can play immediately b5 and attack it. But almost all Grandmasters reply with 6....e6. Theory also stresses to 6....e6. ...
2
votes
2answers
123 views

Most complicated mode for chess engines

I have used many chess engines, especially Stockfish and I want to ask you, if it possible to change its mode to the most complicated one. What I mean: Now, most engines work as following: 1) Mate ...
1
vote
4answers
190 views

Need I be concerned about being classed as a “cheater” if I sometimes play good classical games on LiChess?

I'm trying to improve my tournament play, so I play classical chess on LiChess (me on LiChess). In some (not all) of my games, I do well and have very few or no "inaccuracies" and maybe 15 centipawn ...
4
votes
5answers
105 views

For white's next move, should it be recorded as Nge2 or Ne2 as there is only one knight which can legally move to e2?

[FEN "rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/2NBP3/PP3PPP/R1BQK1NR w KQ - 0 6"] If white move his king knight to e2 in the next move, should this move be recorded as Nge2 or Ne2 in the algebraic notation? ...
3
votes
2answers
247 views

Black only has pawns: Mate in what?

In a standard opening position in chess, imagine that all black pieces are removed except for the king and pawns as follows: What is the shortest forced mate, assuming white starts? I don't know the ...
0
votes
1answer
92 views

Chuzhakin's System Hazardous Elements and Rules

A short time ago, I ran across some short texts and a short video about Chuzhakin's system to spot tactics and avoid blunders. What little I've seen seems really to help me. And so I'm looking for ...
5
votes
3answers
127 views

Caro-Kann 3.Nd2: is it worthwhile delaying or avoiding 3…dxe4 to exploit the poor position on the d2 knight?

In the Caro-Kann where white plays 3.Nd2, it seems like the d2 knight is misplaced: it's on a worse square than c3, and it blocks the c1 bishop. Black playing 3...dxe4 relieves white of both these ...
3
votes
1answer
161 views

Reason why Kasparov resigned in the “Enrage the Beast” game

[White "Garry Kasparov"] [Black " Vassily Ivanchuk"] [fen ""] [StartPly "62"] 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 b6 5. a3 Bf8 6. Nf3 Ne7 7. h4 h6 8. h5 a5 9. Bb5+ c6 10. Ba4 Nd7 11. Ne2 b5 12. ...
3
votes
1answer
86 views

Does the winner of the women's Oceania Zonal qualify to play in a world championship match?

The brochure for the upcoming Oceania Zonal in Guam states: The winners of the 2019 Guam Zonal qualify and are entitled to advance to play in the World Cup and the World Chess Championship. I'm ...

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