Questions tagged [rules]

Questions relating to the rules of chess

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3
votes
5answers
491 views

Castling, is it necessary to take it?

I've got a simple question, that I'm having difficulty finding an answer for... If it is possible to castle (I know the conditions for it), and I decide to move the king to the square where it would ...
5
votes
0answers
112 views

FIDE threefold repetition and possible moves [closed]

FIDE rules section 9.2 says: Positions are considered the same if and only if the same player has the move, pieces of the same kind and colour occupy the same squares and the possible moves of ...
5
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2answers
310 views

Rules: Is this position a draw?

Is this position a draw? [FEN ""] 1. Nf3 Nf6 2. Ng1 Ng8 3. Nf3 Nf6 4. Ng1 Ng8 I don't mean to ask the age-old question "Is chess a draw?"; four moves have been played here, returning to the starting ...
7
votes
1answer
468 views

Does three-fold repetition apply in a rapid game?

I had a winning position in a 10+5 OTB game, but I was low on time. I repeated position to gain some time. My opponent stopped the clock and claimed a draw. The arbiter was called, ans ww agreed that ...
3
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2answers
7k views

Why isn't this threefold repetition, forcing a draw?

Here's my scenario, White has pawns on c2 and a2, and a king on c1, while Black has a queen on b4 and a king on d1. [FEN "4k3/8/8/8/1q6/8/P1P5/2K5 b - - 0 1 "] 1...Qe1+ 2.Kb2 Qb4+ 3.Ka1 Qe1+ 4.Kb2 ...
68
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6answers
14k views

When is castling possible?

Is castling possible if any of the squares involved in the castling are under attack, or is this a problem only if the squares moved through by the king are under attack and not the ones moved through ...
13
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2answers
507 views

Earliest text which mentions the pawn promotion rule

My question is about the history of the pawn promotion rule (promotion to a queen). What is the earliest existing text (authentic written document in any language) which mentions the pawn ...
6
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1answer
366 views

We found out that we made an illegal move later on in the game [duplicate]

I am playing with my friend. I didn't notice that my king was in check, so I made an illegal move. We noticed this after several more moves. What should happen next? Do we restart the game or ...
21
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3answers
2k views

Ambiguity in notation resolved by +

In the board position both knights can move to e4. To distinguish which knight moved one would normally write Nce4 or Nfe4. However in this special situation only Nce4 is check. Would it be ...
7
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4answers
289 views

Threefold repetition in view of castling rights

In view of castling rights, an aspiring rules lawyer could ask: when does threefold repetition support a draw claim? Technical example: [fen ""] [title "Illustration of castling rights"] [startply "...
14
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2answers
4k 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?
12
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4answers
4k views

Can you castle with a “ghost” rook?

I recently saw this mate-in-2 problem [title "White to mate in 2"] [fen "8/8/8/2B5/2p5/1kp5/8/R3K3 w - - 0 1"] This was posed with the hint that the player of the White pieces was a strong player ...
5
votes
5answers
588 views

Custom Chess (game) engine

Is there a chess engine which you can use regardless of the game's rules? For example I wanna create my own chess version in which queen will also be able to move as knight or just a 10x10-square ...
11
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7answers
711 views

Helpmate of arbitrary length

One of the FIDE rules states that if someone's flag falls, and there exists a legal sequence of moves such that the other player mates the first player, then the position is a win for the second ...
7
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5answers
469 views

Rules: How does right to castle and en passant get considered for the purpose of calculating a threefold repetition?

I'm writing a chess app, and have some questions regarding the intricacies of the threefold repetition rules. As of 2018, the FIDE handbook has this to say about what constitutes identical positions ...
22
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1answer
6k views

When en passant is the only legal move

Consider the following position: 8/7p/5K1k/8/7p/7P/5PP1/8 w - - 0 1 1. g4 hxg3 White plays g2-g4. The only legal move is hxg3. I heard someone say that since the en passant capture is optional, ...
9
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3answers
570 views

En Passant Checkmate

I made a check with a pawn that was subject to an en passant movement. The check led to a checkmate, but the rules at chess.com didn't count it as a checkmate but let the opponent make his move. He ...
17
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10answers
5k views

How to balance the game for uneven players

I want to play chess with my wife, but we have different ranks (I am approximately 1900, and she is ~1500 (probably less based on comments)). Normally, our games are boring for me. I tried to balance ...
9
votes
1answer
4k views

How to castle two times in a game

A simple question: Assuming that I'm playing as White, how can I castle twice in a game? I've asked myself this question after seeing the following game from Tim Krabbe's chess records "Greatest ...
25
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3answers
3k views

When capturing en passant, is a position possible such that there is a pin over the square of the taken pawn, rather than the taking pawn?

I am trying to write a simple chess program, and as part of this I am writing methods to find all valid moves. I can detect pins and have no trouble leaving out the moves that would result in the ...
11
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1answer
2k views

50-move rule: only the last 50 or any consecutive 50?

Suppose that, as a result of White's move, there have now been 100 single-moves (50 full moves) since the most recent pawn move or capture. White didn't claim a draw because they're going for the win. ...
4
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2answers
168 views

Team championship pairings

Is there some fixed rule how teams for leagues are paired? Is it deterministic once team gets its starting number? If for example two teams must play in early rounds (e.g. A, B from same club), is it ...
-2
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0answers
33 views

Can a pawn be transformed as other higher powers after reaching opposite end? [duplicate]

Can a pawn be transformed into higher power after reaching opposite the end of the board of directors in a game? What exactly happens?
2
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1answer
85 views

Lockheed draw rules

I recently played Lichess game that left me confused. My opponent had 1 second left on the clock when the game was suddenly drawn. There was no repitition nor was the 50-move rule invoked. Did the ...
16
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5answers
3k views

Bizarre pin rule: pinned pieces do not attack

I found this guy who likes playing chess, but not enough to bother reading the rules; he only plays using a physical board with his sister (she doesn't know the rules either). The made up rule was ...
4
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1answer
5k views

Why did I get only 5 points even though I won?

I'm learning chess and I practice in the chess.com app. I don't understand how the winning points are calculated in every match.
5
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3answers
4k views

If a pawn is promoted to queen beside the king is the king instantly in check?

If a pawn is promoted to queen adjacent to the enemy king, is the king instantly in check?
4
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8answers
1k views

Is it true that at any time only one piece can put king in check?

I am writing a simple chess game in which I have to determine the end game conditions. My algorithm requires the piece that is putting the opponent king in check, and checks the following: King ...
3
votes
1answer
149 views

Is there a rule for anti noise earpieces?

Few days ago, one of my opponent wore Bose anti noise earpieces. Of course, I didn't call the referee cause I knew that it wasn't a cheat technique. But I was wondering what is the rules for that kind ...
25
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5answers
3k views

Rules: en passant and draw by triple repetition

A question of rulebook pedantry: One can claim a draw when the same position occurs the third time, the same player having the move. Two positions are not the same if the earlier allows a capture en ...
-2
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2answers
135 views

Should FIDE introduce a minimum rating for arbiters?

As it stands right now, FIDE does not have any minimum Elo rating requirement for arbiters. In fact, there's no test to check whether one can play chess or not before being awarded a FIDE arbiter-...
21
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5answers
912 views

How quickly must a move be completed?

I was playing in a tournament once, during a sequence of captures, my opponent could recapture my Knight about 4 different ways. He just removed it and carried on thinking. What should I have done?
0
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0answers
35 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.
1
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2answers
22k views

King move to other side

During a game of chess, after several moves. Is it an automatic win as soon as you get your king all the way across the board? I was told this is a tournament rule.
10
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5answers
91k views

Can the king capture his attacker?

Can the king get out of check by capturing his attacker? For example, if the queen comes right in front of the king, can the king capture the queen, or must another piece capture the queen?
1
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2answers
329 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 ...
6
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4answers
383 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 ...
6
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4answers
2k views

Is it possible to capture en passant twice with the same pawn?

I am still confused about the en passant rule. There are two possibilities that I am not clear about. [FEN ""] 1. d4 d6 2. d5 c5 3. dxc6 b5 ( 3. c4 e5 4. dxe6) Scenario 1 :: The main line above Is ...
22
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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 ...
16
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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, ...
-6
votes
3answers
208 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 ...
4
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3answers
3k views

Is takeback allowed in real chess?

Is takeback allowed in real chess? All chess engines allow take backs, but that's not important, it's just a computer, we make mistakes and correct them. My question is about real chess, is it ...
18
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1answer
6k views

If a chess board is disturbed, can the game continue?

Let's say I'm playing a game that has technically begun (white has moved) and then the board is disturbed: say a minor earthquake shakes the pieces off the table or something. Clearly no-one has ...
7
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2answers
347 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 ...
3
votes
2answers
252 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, ...
2
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1answer
529 views

Pawn promotion movement

If a pawn is promoted, does that count as a move? What if a rook is waiting and could capture the new queen in one move? What exactly happens when a pawn is promoted?
9
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1answer
392 views

Touching a captured queen — must I promote to it?

Playing a friendly game against my son (but with Touch-and-Move in force), I was going to promote a pawn to a queen, so I fished out my queen from among the captured pieces, and placed it on the ...
-7
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2answers
382 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 ...
9
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3answers
8k views

Is it possible to castle with checkmate?

I am new to chess. Please answer this for me: Is it possible to castle with checkmate?
4
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1answer
296 views

48 pieces on one board

I saw this picture on the Internet. I am wondering if there is any way to play on this board. Does anyone know what the rules are for this type of chess?