Questions tagged [chess960]

Chess960 is a chess variant in which the positions of the pieces are decided by lot. The point of Chess960 is to stress understanding and calculation, not memorization. Use this tag along with the tag [chess-variants].

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Is there a strategy to win chess960 games?

Chess960, a variant where the backrank pieces are all randomized subject to a few constraints, is a variant of chess where you cannot really memorize openings. Is there a strategy in chess960 so it is ...
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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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White is down 3 pawns in opening, but it doesn't seem like white is really losing

Lichess suggests Re3, Nb1, h4, Bf1, and e5 as top 5 moves. Evaluation is within (-0.7, 0.5). I expected it to be the evaluation to be at most -1. What's going on? [FEN "rnbnk1r1/pp1p1p1p/2p1p1p1/...
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Why don't these statistics disprove white's supposed larger (practical?) advantage in chess960?

I've read that, at least theoretically, white has a larger advantage in 9LX as compared to chess. (See appendix.) This seems to be assumed in practice to the point that in some 9LX tournaments, such ...
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Is the average online account underrated in chess960?

I'm going to use lichess as an example, but I believe this applies to chessdotcom too. (I think it's better to use lichess as an example anyway because lichess and statistics for Chess960.) It looks ...
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What is the meaning of 'fighting draw' vs 'draw by theory' in re Chess960?

I remember reading in some YouTube comment that Chess960 will lead to less draws or something. There was a comment response saying that it seems about the same. Then the original commenter replied in ...
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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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Where to download fischer random games?

Where can I download the PGN files for the World Chess 960 championship from 2019, that was won by Wesley So? I can view the games on the website e.g, https://www.frchess.com/stream but I want to ...
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3 votes
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Is an early "normalization" of the position in Chess960 a sign of good quality game?

First let us start with two definitions. Definition #1: A position is said to be normal if there exists a sequence of legal moves from the classical starting position which lead to this position. ...
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How do convert/parse/extract data from a PGN into a spreadsheet/google sheet/excel file?

Sequel to this question: Live statistics chess960 from chess.com? So suppose I go to like https://api.chess.com/pub/player/gmwso/games/2020/12 or https://api.chess.com/pub/player/gmwso/games/2020/12/...
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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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Live statistics chess960 from chess.com?

Cross-posted stackoverflow, but nothing. Both lichess and chess.com have the feature to play the variant chess960 live. However, only lichess has a graph showing how your live chess960 rating has ...
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Winning percentage (white win/draw/black win) in chess960/9LX in 2021?

How does the winning percentage (white win/draw/black win) in chess 960 (Fischer random) compare to that of regular chess? The above was asked here: Winning percentage in chess 960. I would like to ...
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The slowest Fool's Mate in Chess960

The fastest Fool's Mate in Chess960 is obviously 1. d4 g5 2. Qxg5# with any ..Q.BRKR setup, which even beats standard chess. But which is the starting position with the slowest mate? I checked a few ...
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What site/s has/have different ratings for different time controls for Chess960?

Both lichess and chess.com and have ratings for live chess960, but this is regardless of time control. Please recommend a site that has separate ratings for different time controls for chess960. there'...
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The Chess960 analogue in shogi, xiangqi, etc [closed]

Fischer said In chess so much depends on opening theory, so the champions before the last century did not know as much as I do and other players do about opening theory. So if you just brought them ...
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Patterns in Chess960 positions

I have two questions. Where can I find more studies like this Lichess one, please? I got it from this answer elsewhere on this site. The Lichess study is talking about this position [White "...
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Relation between ratings for Chess960 and standard chess

Is there any relation or any attempt at discovering a relation between Chess960 ratings and standard chess ratings? This can be for GMs, for (any)M's, for pro players, or for all players on lichess/...
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Why Chess960/9LX and not Chess959?

This question asks if Chess960 is really Chess960 and not Chess959, i.e. the dice are really not re-rolled (positive, instead of normative). The answer is yes, it really is. However, why is Chess960 ...
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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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Which engine is better at Chess960-Stockfish or Leela?

It seems that TCEC has seen Stockfish and Leela go back and forth. It is probable that these days Stockfish is a little bit better than Leela. I was wondering, since it is different in Chess960, which ...
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Are there any inherent problems with point-symmetric random chess?

The regular setup of chess is mirror-symmetric: If you mirror the positions of all figures on the equator of the board (between the fourth and fifth rank) and swap the colours, nothing changes. It is ...
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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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What is the worst opening move in Chess960 for White?

Is there a first move for white in Chess960 in which white can immediately blunder a piece or lose a significant advantage (say -2.0 or so)?
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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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How do they determine the starting position for Fisher Random / Chess 960?

I am watching the Fischer Random World Championship with Magnus Carlsen and Wesley So, and I am wondering how they determine the starting position? Is it software that picks, or do they start left to ...
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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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Chess 960: what is the optimal arrangement? [closed]

Chess 960 is a version of chess where the pieces are arranged behind the row of pawns. The same random arrangement (with the constraints of the king being between the rooks, and the bishops being on ...
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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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How to use dice to determine starting position in Fischer Random?

Using a set of Platonic dice (tetrahedron, cube, octahedron, dodecahedron, and icosahedron), what way of choosing the initial position in a game of Fischer Random Chess (Chess 960) uses the fewest ...
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Why isn't Chess960 the standard?

Bobby Fischer said that standard chess is dead and I believe him. Current players rely too much on engine-moves and theory in the openings and quite far in the middle-game without any real ...
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6 votes
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King of Chess 960

As you know, in Chess960, the first and eighth rows are symmetric and consist of the normal pieces which have be permuted. The only constraints are that the King is between the two Rooks and the ...
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24 votes
3 answers
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Chess960 or Chess959?

Once in 960 times, Chess960 should just be the same as regular chess. Are there any known instances of this? Or is this selection automatically excluded, after which they just roll the dice again? So ...
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Chess960 tips and strategies

I have recently stared to play chess variants, and I want become better at them. Are there any strategies for chess960 given that the piece placement is random each time?
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8 votes
4 answers
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How to calculate the number of combinations for Chess960 positions

Can someone derive how do we get the total number of 960 possible positions for Chess960?
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Winning percentage in chess 960

How does the winning percentage (white win/draw/black win) in chess 960 (Fischer random) compare to that of regular chess? Are there more white wins, fewer draws,...?
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5 votes
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Is Chess960 a desirable alternative to classical chess? [closed]

Considering the great depth to which most opening lines have been analyzed by computers now, requiring a voluminous memory to compete successfully at the highest levels, is substituting the variant ...
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Who is best at Fischer Random chess, humans or engines?

I know that the old good question about engines vs humans has been asked multiple times, e. g. here. But what about random chess (aka Fischer chess or chess960)? Can humanity feel confortable about ...
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1 vote
1 answer
191 views

Chess960 human database?

Is there a database for the different starting positions of Chess960? I would like it to have only human played games, because it it was for engines, I'd have lots of computer chess games.
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Chess960 vs. Chess480 castling moves? Which is better?

In the chess variants Chess960 (aka Fischer Random Chess) and Chess480 the castling moves are radically different. Do the castling rules in Chess960 favor established FIDE Chess players more than ...
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6 votes
1 answer
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Is there a formula that converts a number from 0 to 959 to a corresponding chess960 position?

I am looking into a website with starting positions for chess960. 000 BBQNNRKR 001 BQNBNRKR 002 BQNNRBKR 003 BQNNRKRB 004 QBBNNRKR 005 QNBBNRKR ... 959 RKRNNQBB So there is a table that converts any ...
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15 votes
4 answers
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Starting positions in Chess960 where black is definitely worse

In article in wiki about chess960, it is stated that: It has been argued that two games should be played from each starting position, with players alternating as White and Black, since some ...
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5 votes
2 answers
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Where can I download (or buy) a database of Chess960 games?

Where can I download (or buy) a database of Chess960 games? Or at least find games from the major Chess960 tournaments? edit: If some is interested here are games I managed to find in internet.
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What are the basic principles to play chess960?

I heard about a popular chess variant called Chess960, which uses randomized home ranks for the pieces. Which are the basic principles we can adapt there in Chess960?
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What are the best scoring openings in Chess960?

I don't play Chess960, or Fischer Chess as it is also known. I've seen a lecture or two about it, but I was never interested. Last week I was a bit bored so I decided to participate in a tournament ...
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Major Chess 960 tournaments?

Does anyone have any information about upcoming Chess 960 tournaments at the top level (i.e. GMs and IMs)? Even links to/information about past, major tournaments would be appreciated. I recently ...
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5 votes
2 answers
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Where can I find mobile software for Fischer random chess?

Fischer had a chess variation (chess960) but I cannot find any mobile app to play it. Does anyone knows where I can get the best software (if possible free or cheap) to play it?
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21 votes
4 answers
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What other games or chess variants are useful to improve your chess skills?

I know about Chess960, and you can play that online at lichess.org. Furthermore, I like playing Go as well. But are there any good variants and other ways to train that you use, and you know to work ...
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