Questions tagged [rules]

Questions relating to the rules of chess

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2 votes
0 answers
26 views

Cheating Protocols

Does FIDE (or any national federations) have any set protocols regarding detection of cheating? Or maybe a formal process for adjudicating suspicion? From what I can tell, the arbiter at St. Louis ...
38 votes
1 answer
8k views

When was it possible for a player's king to be attacked by 3 of the opponent's pieces?

According to the current FIDE Laws of Chess: 3.9.1 The king is said to be 'in check' if it is attacked by one or more of the opponent's pieces, even if such pieces are constrained from moving to ...
5 votes
1 answer
56 views

Can a tournament be FIDE rated if it has multiple time controls based on player ratings

If we ran a weekly club tournament that has different time controls for different games based on both players' ratings as set forth in the FIDE regulations, would the tournament qualify as a Standard ...
6 votes
2 answers
651 views

USCF: Should the arbiter start a time-forfeit claim?

I will be an USCF arbiter soon and I am checking the current USCF version of chess rules. Here is the link on the USCF website at 4/9/2022: USCF chess rules In my perspective, you would have to go to ...
9 votes
2 answers
2k views

Do you lose/gain rating if you withdraw in the middle of an OTB tournament?

Magnus just withdrew from the Sinquefield Cup. Does that affect his rating at the end of the tournament? Will he gain or lose rating based on at the time he left the tournament in the next fide update?...
7 votes
1 answer
268 views

USCF: Can the arbiter adjudicate a draw using the threefold repetition rule WITHOUT a player claim?

Please give me your perspective and experience about USCF sudden death and non-sudden death time controls. My understanding is the following: In general, the arbiter should not intervene unless a ...
3 votes
1 answer
66 views

USCF: Does the arbiter have the duty to write the moves of the players if they are not recording their moves? Or is that not allowed?

In general, the players have to write their moves. However, there are some situations when they are allowed to skip this obligation. In those situations, does an USCF arbiter have the duty to write ...
2 votes
2 answers
121 views

USCF: Should the arbiter correct illegal moves without a player claim?

Should an USCF arbiter correct illegal moves without a player claim? Here is the USCF link: USCF rules of chess Here is the FIDE link: FIDE rules of chess USCF and FIDE rules are NOT 100% equal. What ...
7 votes
1 answer
115 views

Do I have to make a move on a DGT board at the start of the game when opponent is not present?

In a situation when you are playing on a DGT board as white and your opponent has not yet arrived at the board, should we still make the move on the board after the game has started? Let's say your ...
3 votes
1 answer
116 views

If players are not writing their moves, can they claim a draw using the threefold repetition rule in an USCF or FIDE 30+0 chess tournament?

It is my understanding that the USCF expresses that if a player has less than 5 minutes in a 30+0 game, neither the player nor his/her opponent have the obligation to continue with chess notation. If ...
23 votes
3 answers
6k views

Is this an incorrect draw by chess.com?

Is this an incorrect draw by chess.com? I just played a game on chess.com with the final position as below (I am black): [FEN "8/8/2b5/7P/8/2k1N3/5PP1/6K1 w - - 0 59"] My opponent's time ...
12 votes
2 answers
3k views

Do I have the right to resign on my first move or within 10 moves?

In chess, does a player have the right to resign within the first ten moves of the game? More specifically, I am curious if I can resign immediately on my first move. Additionally, do I have my right ...
11 votes
4 answers
2k views

When checkmate is impossible in a position

The laws of chess say 1.5. If the position is such that neither player can possibly checkmate the opponent’s king, the game is drawn (see Article 5.2.2). 5.2.2. The game is drawn when a position has ...
3 votes
2 answers
89 views

What is "mating potential" in the FIDE Arbiter's Manual meant to mean?

While researching an answer for another SE.chess question (Has a position being a draw under FIDE 5.2.b before a forced recapture ever come up in a tournament?), I stumbled across the following issue. ...
9 votes
1 answer
1k views

At the Candidates, are players allowed to discuss the tournament situation with each other?

As I write this question, Ian Nepomniachtchi is leading the ongoing Candidates tournament by a substantial margin. Since it's a winner-takes-all tournament, everyone else needs Nepomniachtchi to lose. ...
5 votes
1 answer
84 views

Has a position being a draw under FIDE 5.2.b before a forced recapture ever come up in a tournament?

Tom7 points out that FIDE article 5.2.b reads: The game is drawn when a position has arisen in which neither player can checkmate the opponent’s king with any series of legal moves. The game is said ...
0 votes
1 answer
80 views

Can a king capture a piece in front of the enemy king [duplicate]

Can I eat a piece in front of the enemy king with my king? For example: My king was on b6, the enemy knight was on b5, and the enemy king was behind the knight on b4. So can I capture the knight with ...
18 votes
1 answer
4k views

Why does India get three teams for Open and Women's sections in the 2022 Chess Olympiad?

The 2022 Chess Olympiad is hosted in Chennai, India. Why does India get to field three teams while most nations get the usual one team per Open and Women's sections?
1 vote
1 answer
53 views

What is the most number of repetitions in a GM game?

In July 2014 FIDE introduced new rules regarding draws. The arbiter was required to step in and declare the game drawn in cases where the players repeated the position 5 times: 9.6 If one or both of ...
19 votes
5 answers
6k views

What stops me from pumping up my rating by playing a 200 game match against a much weaker (>400 point difference) player?

This question is inspired by this extract from a question about minimum rating gain: One of the top 10 players in the world (say Magnus Carlsen), wants to increase his rating to 3000. He has a good ...
3 votes
1 answer
74 views

What games in a FIDE rated tournament does FIDE NOT rate?

In a recent FIDE rated tournament I officiated in one of the players complained to me afterwards that only 2 out of his 5 wins had been rated by FIDE. "What", he wanted to know, "was ...
5 votes
1 answer
193 views

What happens when a world chess champion doesn't defend their title?

When a world chess champion like Carlsen decides not to defend the title, how does FIDE determine who the new champion will be? Is it just the winner of the Candidates tournament?
4 votes
1 answer
1k views

Rules: Distracting the opponent using flashy clothes?

Yesterday, I was in a clothes shop and saw shirts that had wild patterns with screamingly bold colours. The same day, I saw this picture from the Angolan Chess Olympiad team, whose shirts reminded me ...
14 votes
1 answer
2k views

Arbiter's top work cause

Any solid data on which rule decision makes up the lion's share of arbiters work nowadays? (I neglect "Lookie, Flag!" because this is rather passive, and a player can claim it anyway. ...
3 votes
2 answers
135 views

Are there any tri dimensional chess rules utilising traditional starting positions?

I have a tri dimensional chess game for my phone which let's the player select different rule sets to play by. They all start with the king and queen on the attack boards which I find incredibly ...
8 votes
1 answer
2k views

Korchnoi was an Orc? Enforcing FIDE rule §E8.1.1

Exhibit A Note that §E8.1.1. says (...)as clearly and legibly as possible(...). My arbiter's estimation is that maybe around 5% of all players produce Orc runes. (My own handwriting is atrocious, but ...
1 vote
2 answers
123 views

How would USCF handle a position, in which there is sufficient material, but checkmate can't be forced?

There are some positions, in which both players have pawns, rooks, and even queens, but checkmate cannot be forced. [FEN "4k3/4r1r1/3p1p2/p1pPpPp1/PpP1P1Pp/1P5P/8/4K3 w - - 0 1"] For ...
0 votes
2 answers
92 views

What would happen if the same opening is played until an advanced stage in two games in a tournament? [duplicate]

I was watching this Firouzja interview by Belenkaya after the last round of the candidates and she asks him if he noticed the similarity between his game and Rapport-Radjabov at the opening. Despite ...
1 vote
0 answers
72 views

A double pin: does this count as check? [duplicate]

I was thinking about this position. [FEN "4k3/8/4q3/8/8/8/8/2K1Q2r b - - 0 1"] [startflipped ""] Can the Black queen move to another file? If she moves then there is nothing ...
25 votes
3 answers
9k views

How did castling originate?

Castling to me has always seemed like such a huge leap in terms of game play that I've always wondered how it came to be. Does anyone know the history behind how and why castling came to be?
14 votes
5 answers
1k views

What are the different rules for claiming a draw?

According to the current FIDE rules of chess: The game is drawn upon a correct claim by the player having the move, when the same position, for at least the third time (not necessarily by a ...
4 votes
3 answers
374 views

What is the origin of the chess pieces' movements?

Why do pieces move the way they do? Was there any reason behind the decision in the early history of chess? This Quora post for example mentions (no citations): Queen can give directions. And she can ...
2 votes
1 answer
130 views

Richard Rapport to switch federations to Romania - what are the rules?

Richard Rapport started his first game in the Candidates today still under the Hungarian flag despite reports a month ago that he and his Serbian wife were going to switch federations to Romania and ...
8 votes
1 answer
151 views

What are the time rules in Candidate Tournament?

So I'm following the London Candidate Tournament and I'm a bit confused regarding the time and why some games are getting an extensions and some are not and you are eventually losing because of time. ...
1 vote
1 answer
103 views

Countermove without notation

Quoting the FIDE rules (E8.1§3): "A player may reply to his opponent’s move before recording it, if he so wishes. He must record his previous move before making another." Quoting any arbiter:...
3 votes
2 answers
247 views

Why is it a draw after check from pawn promotion?

I've been playing against Stockfish, and sometimes I promote a pawn to a piece that immediately puts the opposing king (the only piece on the board) into check, but the computer says at that point ...
8 votes
2 answers
403 views

Historic time controls for World Championships

According to the answer to this question we know that currently it is 100 minutes for 40 moves followed by an additional 50 minutes for 20 moves then an extra 15 minutes to finish the game with a 30 ...
12 votes
6 answers
3k views

What do you do when an opponent asks for a score sheet after a game in which recording is not compulsory?

I wish to know how to handle a certain situation regarding chess etiquette. Consider the following: I went for an OTB tournament recently - rapid 15 + 10 time control. Organizers stated that recording ...
22 votes
4 answers
4k views

When and why was the notation changed from descriptive to algebraic?

When I was young I used to play chess with the the old form of notation KB<number> (King Bishop square number), even books used to have the same notation, then later found that everyone was ...
11 votes
4 answers
4k views

Is Beth Harmon behaviour in her game vs Georgi Girev acceptable (then and now)?

In S01E04 of the TV series The Queen's Gambit, the main protagonist (Beth Harmon) is competing against a young Russian player (Georgi Girev). This happens in 1966. Beth Harmon is not spending any time ...
-1 votes
1 answer
133 views

Did white make an illegal move here?

Black legally moves a pawn to the 8th rank, intended to promote it to a queen without specifying what piece this pawn should be promoted to. White immediately captured the pawn with his piece (as it ...
4 votes
2 answers
187 views

"Premoving" in blitz over the board [duplicate]

I'm myself a lightning-fast blitzer, but some (Ha. All.) have better dexterity than me. Some specialists make their move even before I could hit my own clock. This is especially annoying when Fischer ...
8 votes
3 answers
638 views

Are score sheet booklets allowed to be in use?

Is it allowed to use a score sheet booklet for notations (with a recording of previous games), as opposed to a single "stand alone" sheet? Reasons for not allowing this may, of course, be ...
3 votes
1 answer
168 views

Should the arbiter stop players from spectating other players' games? [duplicate]

Suppose a player forgot the correct "book move" in a tournament. He/She looked at another game played by strong players in the same tournament and happened to find the same opening position. ...
3 votes
2 answers
1k views

can players continue the game on mutual agreement in case of mobile ringing and arbiter noticing

In a situation where a mobile phone rings in the middle of the game should the offender's opponent call the arbiter and claim the win. If claiming is not needed and if the arbiter decides to mark the ...
12 votes
1 answer
549 views

Is the number of legal chess positions odd or even?

Is the number of legal chess positions odd or even? Two positions are not the same if they differ in castling rights (i.e. whether K or R have actually moved) or en passant capability (i.e. whether ...
13 votes
2 answers
4k views

Touch move rule when the opponent is not present on the board

According to the rules, if a player touches a piece, he/she has to move that piece (if it's possible), and so on... Imagine this situation, the opponent is not present on the board (far away), you ...
0 votes
1 answer
919 views

Is this move illegal?

I'm currently writing my own chess game with my own AI and have a Question about a move: Here, Purple moved his Pawn from F2 -> F3, which allowes the Green Queen on H4 to capture the King, and I ...
22 votes
8 answers
10k views

Can a player in check win, by checkmating the opponent, while not getting themselves out of check?

Consider a player who is in check. Suppose they can make a move that would checkmate the opponent, but would not stop themselves from being in check. Would that be a legal move? For example, in the ...
15 votes
3 answers
5k views

When is it legal to castle moving the rook first?

As a follow on from the question Is it legal to castle with a "ghost" rook: When is it legal (according to the FIDE Laws of Chess) to castle moving the rook first?

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