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Questions tagged [castling]

Questions relating to castling

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2 votes
1 answer
141 views

Can A Posteriori Type Keym, which flips the player to move, also flip the player that delivers mate?

Again, I composed the task, but doubts crept in. Is everything really as I think it is? 4k2r/4p3/4P3/7N/8/P7/rP1PP1P1/5KQR w - - 1 13 2b1k2r/1p1pp1p1/4P3/p6N/6P1/2P5/1PrPP1P1/1B3KQR w - - 1 13 ...
Элси Ринген's user avatar
5 votes
2 answers
1k views

Why does White castle into Black's attack in the King's Indian, and then run away afterwards?

Inspired by the Nakamura/Rozman vs. Naroditsky/Hess team game a few months ago. [FEN ""] 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. h3 O-O 6. Be3 c6 7. Nf3 Na6 8. Bd3 e5 9. d5 Nh5 10. O-O!? ...
Allure's user avatar
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0 votes
0 answers
47 views

Can you castle with white king if f1 is under attack from the enemy bishop [duplicate]

The problem is: According to one of the rules, the king cannot go through check during castling. However, if f2 is empty, the king could simply move through f2 avoiding f1. Therefore not going through ...
Domsto's user avatar
  • 11
1 vote
2 answers
155 views

Do queenside attacks have an advantage over kingside attacks?

I think I have noticed a pattern in my games in which I have castled long and my opponent castles short, then we both pawn storm to attack the kings. Typically this happens after I play the ...
Steve Bennett's user avatar
-2 votes
1 answer
134 views

Castling on King side [closed]

This is a quiz from a chess website. The challenge is to castle on King Side. White to play. How can we do this ?
Manikanth V's user avatar
5 votes
1 answer
798 views

Which openings have a 0-0-0 long castle as white and as black?

Long castling is not very common. Are there any statistics as to how many games have long castle? And how many of them are won? Which openings can one typically play where there is a long castle, as ...
AbhayMK's user avatar
  • 51
1 vote
1 answer
104 views

Could castling ever be proven to be legally allowed for sure if the first move is required to be a pawn move?

In retrograde analysis problems, castling is assumed to be allowed unless it could be proven that either the king or the rook has previously moved. It is well known, of course, that one could never be ...
Geoffrey Trang's user avatar
0 votes
1 answer
153 views

Why did I lose -> I thought I can swap king and castle to avoid checkmate? [duplicate]

[FEN "6nN/Bp1k2pp/2n5/p7/Q4R1P/5pP1/P3qN2/4K2R w K - 0 1"] As you can see my king got checkmated through the enemy's queen and pawn. My question is, why is this a checkmate? I haven't moved ...
user avatar
1 vote
1 answer
163 views

Can a castling checkmate be engineered from this position?

I get the following position pretty often in online bullet as White. It's mate in a few (for instance, 9. Bf4+ Kc5 10. Qd5+ Kb6 11.Qb5#). Needless to say, the setup is dubious. This looks like a prime ...
SE - stop firing the good guys's user avatar
10 votes
3 answers
2k views

How is white allowed to castle 0-0-0 in this position?

I always thought the rules are you can’t castle if an enemy piece is watching the space between your king and the rook you want to castle with. But according to chess.com castling long is allowed in ...
josias's user avatar
  • 213
5 votes
1 answer
1k views

Has checkmate ever been achieved by castling queenside in a high-level game?

This is to complement the kingside variant of that question Has checkmate ever been achieved by a castling queen side in a high-level game?
Nicolas Formichella's user avatar
4 votes
1 answer
476 views

Has checkmate ever been achieved by castling kingside in a high-level game?

Has checkmate ever been achieved by castling kingside in a high-level game? I asked an AI large language model, but it listed games which certainly didn't achieve checkmate with castling kingside. I ...
stevec's user avatar
  • 2,107
1 vote
1 answer
127 views

Chess960 castling controversies in the 2019 vs 2022 WFRCC, where both are Nepo vs Wesley So

Why did Ian Nepomniachtchi get a replay for the castling issue in the 2019 WFRCC vs Wesley So, but Wesley So didn't get a replay for the castling issue in the 2022 WFRCC vs Nepo? I mean I know the ...
BCLC's user avatar
  • 2,178
0 votes
0 answers
54 views

Chess960 castling controversy in the 2019 WFRCC: Where can I see the original Nepo vs Wesley So game?

Apparently in the 5th game Ian Nepomniachtchi originally had to play 13. Rf1 instead of 13. 0-0 but then they allowed Nepo to replay the whole game. The ff is the replay game: https://lichess.org/...
BCLC's user avatar
  • 2,178
30 votes
1 answer
4k views

Has O-O ever been played without moving the e or g pawns?

Normally the e or g pawn must be moved (to release the bishop) before castling kingside is possible. However, it’s theoretically possible for a knight to have taken the bishop without these pawns ever ...
Brennan Vincent's user avatar
2 votes
0 answers
84 views

What are chess openings variations, lines which ensure delayed castling with equal probabilities on both sides; king and queen sides?

What are chess openings variations (lines that ensure delayed castling with equal probabilities on both sides; king side and queen side) for both white and black? Delay to move 15-20.
salah's user avatar
  • 255
7 votes
1 answer
701 views

With regards to the safety of the king when castling kingside

Basically, I want to keep my king safe after a kingside castle. I want to avoid this: 8/8/8/8/8/8/5PPP/2r3K1 w - - 0 1 The configuration is such that none of my pieces can access the f1 square. I ...
insipidintegrator's user avatar
9 votes
4 answers
723 views

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....
Mark Goldfain's user avatar
-1 votes
1 answer
477 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 ...
BCLC's user avatar
  • 2,178
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 ...
Thomas's user avatar
  • 215
2 votes
0 answers
87 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.)...
Hauke Reddmann's user avatar
2 votes
1 answer
746 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 ...
BCLC's user avatar
  • 2,178
3 votes
0 answers
248 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 ...
James Urian's user avatar
4 votes
3 answers
771 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 ...
James Ko's user avatar
  • 1,977
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 ...
BCLC's user avatar
  • 2,178
0 votes
2 answers
238 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 ...
user avatar
1 vote
2 answers
739 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?
user avatar
3 votes
1 answer
244 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 ...
Hauke Reddmann's user avatar
14 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/...
Joseph Sible-Reinstate Monica's user avatar
3 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 ...
Ibnelaiq's user avatar
  • 141
5 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 ...
shashank shekhar singh's user avatar
0 votes
1 answer
189 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 ...
user avatar
4 votes
1 answer
418 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 ...
ettolrach's user avatar
14 votes
2 answers
1k 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 ...
Laska's user avatar
  • 12.3k
4 votes
2 answers
982 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 ...
user avatar
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 ...
Tauist's user avatar
  • 616
2 votes
1 answer
120 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 ...
user avatar
4 votes
2 answers
469 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 ...
Ritesh Singh's user avatar
7 votes
2 answers
5k 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 ...
Rewan Demontay's user avatar
4 votes
1 answer
146 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 ...
ChessLover's user avatar
1 vote
1 answer
150 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?
Laska's user avatar
  • 12.3k
4 votes
2 answers
663 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. ...
Rewan Demontay's user avatar
5 votes
3 answers
704 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 ...
Smich's user avatar
  • 161
3 votes
1 answer
304 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 ...
Klangen's user avatar
  • 981
6 votes
2 answers
185 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?
Adam Romano's user avatar
4 votes
1 answer
599 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: ...
123iamking's user avatar
4 votes
1 answer
418 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 ...
Rewan Demontay's user avatar
6 votes
3 answers
342 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?
Marcelo's user avatar
  • 296
4 votes
3 answers
287 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 ...
Rewan Demontay's user avatar
11 votes
4 answers
2k 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 ...
Remellion's user avatar
  • 5,040