Questions tagged [castling]

Questions relating to castling

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Has anyone done a correlation of castling with winning and losing?

I saw this question: How often does castling occur in grandmaster games? The statistics are interesting. The answer states that they do so about 90% of their games. So, the move seems pretty valuable....
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-2 votes
1 answer
181 views

What is white's increased advantage in chess90 as compared to chess870? (Chess960 can be split into 2 subsets, chess90 and chess870)

Here, it is shown 90 of 960 positions involve having to move a rook on 1 side in order to castle on the other side (unless the rook is somehow captured or something). These 90 positions come from 18 ...
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19 votes
5 answers
7k views

Was AlphaZero taught castling?

Since castling involves one player moving two pieces in one move, was AlphaZero just given this move, in the same way it was told that players take turns and a win is better than a loss? In other ...
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2 votes
0 answers
70 views

Unhinderable long/short castling by White/Black

Assume the goal is that a certain side castles as soon as possible, and the other side wants to completely ruin castling rights. White simply plays 1.e3 2.Nf3 3.B any 4.(5.)capture an interloper 5.(6.)...
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1 vote
1 answer
424 views

How many Chess960 positions exist in which castling on one side does not require moving the rook on the other side?

Update: It's chess870 (or chess869). See answer. Context/Motivation/Goal: In regular chess, you never have to move a rook (on 1 side) to castle (on the other side). My aim is to see how much of 9LX ...
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3 votes
0 answers
116 views

Debugging my PERFT coding

I'm stuck debugging my move generation and do move function. I noticed that the castling as actually the problem in my code, but I think I have implemented everything right. I installed some java ...
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4 votes
3 answers
320 views

Openings where Black castles queenside and White castles kingside

I really enjoy opposite-side castling positions where I'm able to launch pawn storms and put my opponent under pressure. For this reason, I actually enjoy the Exchange French as Black / I want to take ...
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6 votes
2 answers
2k views

Chess480: Why 480?

From wiki: Lewis has named this chess variation "Chess480"; it follows the rules of Chess960 with the exception of the castling rules. Although a Chess480 game can start with any of 960 ...
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0 votes
2 answers
170 views

Is castling bad in chess? [duplicate]

One of my chess opponents said that he doesn't think castling is good because the king is in the corner and it is easy to checkmate. However, many articles and books suggest that I castle early when I ...
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1 vote
2 answers
218 views

How do you write "castles" in algebraic?

Sorry if this question is a duplicate one, but I can't find the algebraic notation for castling. What is it?
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3 votes
1 answer
205 views

Reasons why castling may be the only winning move

I recall at least one game of mine where my last move was castling (around move 20 or so :-), it saved my ugly posterior, it was the only move and we immediately agreed on a draw after that. (Do not ...
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13 votes
1 answer
2k views

Can you castle twice in Chess960?

Consider this Chess960 game. (Warning: moving backwards through this replayer will result in an incorrect board state. See Board playback and Chess 960 for details.) [FEN "rnkqbbnr/pppppppp/8/8/8/...
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4 votes
1 answer
1k views

Why is castling here a mistake?

I am back at chess after two years and am enjoying it a lot. I was playing and this happened after I checked a report at chess.com: I have googled the importance of when to castle the king. Here I ...
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6 votes
3 answers
2k views

Is there any obvious disadvantage of not castling in a game?

The opponent has the option of castling but can I still play a solid game without castling either side? I won some games in bullet time controls but only because position was too complex and opponent ...
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0 votes
1 answer
151 views

Latest time to castle in a tournament game

In a casual game I played, my opponent castled around the 80th move. I want to know what was the latest move in which a player has castled, in an official game. I don’t think that there is an entry ...
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4 votes
1 answer
335 views

Is it legal to push the rook with the king when castling?

I've gotten into the habit of pushing the rook over to the appropriate square using my king; that is, I take my king into my hand, I take it to the outer edge of the board, then push the rook to its ...
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12 votes
2 answers
971 views

What is Indian Castling exactly?

Western castling doesn’t exist in historical Indian Chess (Chaturanga). Instead, in some versions, there is a cool move whereby each king can once in the game make a knight's move. I read that it is ...
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2 votes
1 answer
493 views

Castling vertically problem

I've once saw a joke chess study about castling vertically. However, I have forgotten who has composed it. I remember that in the positions, all the pawns were locked, but not much else. Does anybody ...
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29 votes
4 answers
7k views

Should a chess engine be aware of opposite-side castling?

I often hear chess experts and chess articles say that when opposite side castling occurs on the board that it is important to launch an attack on the enemy player as fast as possible. Up to the point ...
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2 votes
1 answer
102 views

A castling variant-how would it change the game?

In chess, castling can't be done if the king or relevant rook have moved. How would the basic strategy of the game change if the king and rook could castle after moving? Also, how would the game ...
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3 votes
2 answers
327 views

Compiling Stockfish to disable own castling while allowing opponent castling

For artistic purposes, I would like to create and study engine games in which only one side is able to castle. For this, I need to compile a version of Stockfish which never castles, and doesn't ...
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7 votes
2 answers
4k views

Does a loophole still exist in the defintion of castling?

Castling on the e-file with a promoted rook, an idea immortalized by Tim Krabbe and Max Pam, is no longer legal since FIDE amended the wording to state that castling is an actionn on the first/eigth ...
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4 votes
1 answer
123 views

Trapped Rooks: Does Stockfish penalize more if the king can't castle temporarily?

In this talkchess thread, they discuss trapped rooks and castling rights. In post #5, user @Lyudmil Tsvetkov posted: I would give at least some 10-15cps for temporary prevention of castling. Here is ...
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1 vote
1 answer
93 views

What’s the difference between Partial Retrograde Analysis and Retro Strategy?

What’s the difference between Partial Retrograde Analysis (PRA) and Retro Strategy (RS) which are different ways of interpreting retrograde analysis chess problems?
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2 votes
1 answer
457 views

What is the fastest possible stalemate by castling?

It is known what the fastest stalemate is. But what but is the fastest possible stalemate in which castling must be the last move? 33 plies is my best result so far. [FEN ""] 1. e4 h5 2. ...
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5 votes
3 answers
522 views

How should one decide which rook to put on a central file? [duplicate]

How should one decide which rook to put on a central file? I usually just move the one which is closer to the file, unless there are weak squares in my position that one rook is defending. In ...
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3 votes
1 answer
174 views

What's the plan against Black's kingside fianchetto when playing Queen's pawn game?

I often play 1. d4. In many of the variations that arise, Black decides to castle kingside with the bishop fianchetto. I do not know what the general plan is in this case. Normally without the ...
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6 votes
2 answers
172 views

Castling question [duplicate]

It is my understanding that a castling move cannot occur if the king / rook moved. However, in the case where a rook and king move but end up in their original spots, can a castling move occur?
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4 votes
1 answer
428 views

Castling Rules-Does “The king & rook must be on the same rank.”="Only original rooks can do castling."?

According to Wikipedia, one of the conditions of castling is: The king and the rook must be on the same rank (Schiller 2003:19). This is because of a loophole that would occur otherwise: ...
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4 votes
1 answer
305 views

What effects would being able to capture while castling have?

Capturing an enemy piece while castling has been illegal for many decades, and the concept has been solidified in chess history. But what effects would it have if it were allowed? First, some ground ...
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6 votes
3 answers
308 views

Is castling good in Chess960?

The overall arrangement of the pieces in Chess960 seems so weird that I have a question about it: should there be castling at all?
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4 votes
3 answers
223 views

About castling “fights”

Today I played as White in an interesting bullet game in which a strange “fight” occurred. [FEN ""] 1. d4 e6 2. Nf3 b6 3. e4 Bb7 4. Bd3 g6 5. Be3 Bg7 6. Nc3 Qe7 7. Qd2 Nc6 8. a3 a5 9. h3 h5 10. Qe2 ...
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10 votes
4 answers
1k views

Official rules for castling in Chess960? (Is there a loophole?)

Note: this is another rules-lawyering question. I first ask for an official source I am calling into question the phrasing of the rules. Then I consider a few plausibly official sources, and point ...
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48 votes
8 answers
11k views

What are pros and cons around banning castling?

Vladimir Kramnik has proposed on chess.com that castling be banned for the good of the game. What are the kinds of objective points that might be made for & against this idea? Based on these, do ...
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3 votes
1 answer
292 views

When should you trade to prevent castling?

The main question I have is about a game I played. What do I need to know about how to take a piece so that my opponent's king can no longer castle? In the following game, I played Bxd2+ to do so. ...
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  • 539
20 votes
5 answers
4k views

How can you castle legally in Chess960 when the castling rook is on the king's destination square?

According to the FIDE Laws of Chess: 4.4 If a player having the move: 4.4.1 touches his king and a rook he must castle on that side if it is legal to do so 4.4.2 deliberately touches a rook and ...
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8 votes
1 answer
1k views

Does permanent loss of castling rights reset three fold repetition?

Threefold repetition requires that the same "potential for moves". For example, if an en passant move could be played in one position but not another, it does not count as the same position. With ...
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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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4 votes
1 answer
559 views

Minimal number of moves before castling in Chess960

As you know, in the initial position Chess960 the king lies between the two rooks. Here are the rules for castling. For a starting position P, let n(P) be the minimal number of moves that White needs ...
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8 votes
2 answers
1k views

What would chess openings be like without castling and/or the double pawn move?

Chess has a fairly elegant set of rules, but it has two rather ugly "rules hacks" in it: Pawns can move two squares forward, but only on their first move, and have the rather ugly rule of en passant ...
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4 votes
1 answer
129 views

Is it valid according the FIDE chess rule? [duplicate]

From FIDE Law of Chess, article 3.8, it is stated as: Now, coming to My game vs killin_pieces on lichess.org : After move 9, situation was something like this: b1 was threatened by my opponent's ...
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5 votes
3 answers
881 views

Why was castling bad for white in this game, and engine strongly prefered trading queens?

I'm a novice player, trying to improve. In the following game I played as white recently on chess.com, I analysed afterwards and my worst move of the game was apparently when I castled. The engine ...
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0 votes
2 answers
7k views

Does the MacBook chess game program not allow castling?

I have gotten back to learning chess, and I started using the chess game program on my 2015 MacBook Pro. Last night I wanted to castle, but it would not allow me to do so. I was white by the way. ...
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-2 votes
1 answer
197 views

Is it legal to castle by tipping the rook with the king?

Nakamura castles with two hands. But I saw one of my students taking their king and "tipping" their rook towards f1. Is this USCF/FIDE legal?
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30 votes
2 answers
8k views

How often does castling occur in grandmaster games?

May I know how to find in all grandmaster games, what the percentage of each of the following is? Kingside castling Queenside castling Never castled by the end of the game but still has the right to ...
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  • 7,695
7 votes
3 answers
556 views

Why is Apronus allowing the White king to castle through an attacked square?

I was using Apronus to make a new chess puzzle for Puzzling Stack Exchange, but then it did something odd. [FEN ""] 1. Nh3 f5 2. e4 fxe4 3. d3 exd3 4. Be2 Kf7 5. Qd2 dxe2 6. O-O It's ...
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8 votes
4 answers
660 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&...
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  • 4,391
2 votes
2 answers
319 views

What is the fastest horizontal checkmate for both castlings?

I wish to know the fastest possible castling checkmate, both queenside and kingside, that is horizontal. See my question about vertical checkmates..
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3 votes
3 answers
379 views

What is the fastest vertical checkmate for both castlings?

I wish to know the fastest possible castling checkmate, both queenside and kingside, that is vertical. See my question about horizontal checkmates.
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3 votes
2 answers
661 views

Plans for black when White castles short in the Sicilian dragon

What are the plans for Black when White castles short in the Sicilian dragon? Very broadly speaking I am thinking of two plans. Go for a King's Indian like kingside attack with e5 played at a ...
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