Questions tagged [chess-variants]

Questions about variants of normal chess including bughouse, Chess960 (Fischer Random), atomic chess, racing kings, crazyhouse, antichess, etc.

Filter by
Sorted by
Tagged with
28
votes
5answers
7k views

Is there a name for a chess variant where you are allowed to capture your own pieces?

I occasionally think it might be fun to play a chess variant that is exactly the same as regular chess, except that it is permitted to capture your own pieces as well as your opponent's pieces - so, ...
26
votes
3answers
4k views

On an infinite board, which pieces are needed to checkmate?

Most of the winnable endgames require cornering the opposing king to checkmate, often using zugzwang. However, if you have an infinite board (infinite in every direction), you won't be able to corner ...
26
votes
2answers
23k views

What are the rules of Quantum Chess?

The game Quantum Chess, as seen in the video where Paul Rudd defeats Hawking, has no "set of rules" written down. You either have to do the in-game tutorial, watch a video on the game and pick them up....
25
votes
4answers
5k views

Is there a balanced chess system where players of unknown skill can have an equal chance of winning?

Is there a chess system where you can make players of differing skill levels compete against each other with an equal chance to win without using different chess variations? This system should give ...
24
votes
3answers
4k views

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 ...
22
votes
7answers
2k views

How to determine the value of a piece from scratch?

Assume we have a standard chess set setup, but we make a slight change so that (for example) pawns can now move two squares forward on any move rather than just on their initial move. Even assuming ...
21
votes
4answers
4k views

Is there any position where not promoting(illegally) would be the best move?

Is there any position, where moving a pawn to last rank but not promoting it to any piece would be the best move? By the way, I know this is an illegal move. Assume it is legal. Edit: Now we have a ...
20
votes
9answers
1k views

Resources on chess variants

While posting this question, I stumbled on this list of variants from Wikipedia, which I must admit is totally awesome. I know a few online servers allow a few variants, but am not aware of places ...
20
votes
9answers
11k views

Shorter game for play with kids

I am teaching my children (5 and 7) to play chess, and we are pretty much at the which piece can move where phase. However while they do enjoy the game, they don't really have an attention span that ...
19
votes
5answers
4k 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 ...
19
votes
5answers
4k views

Can one side force a loss in regular chess?

Chess is unsolved, so there is no known optimal strategy for one side to force a win or a draw. However, is there an optimal strategy to lose? Consider a variant where checkmate results in a loss, ...
19
votes
4answers
929 views

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 ...
19
votes
4answers
6k views

Crazyhouse/Bughouse openings

Are there any known or "standard" openings in bughouse or crazyhouse chess? Obviously, as soon as pieces start coming off the board things get less predictable, so this question is less about the ...
19
votes
3answers
1k views

What material handicap would be required to compensate for a single double-move?

Consider the following chess variant: Black can, once per game, make two moves in a row (the second move may not capture the King) To compensate for this advantage, Black gets a material handicap ...
18
votes
4answers
2k views

Are there any Chess960 positions where Black has the advantage?

I've heard it said that some Chess960 positions have a significant advantage for White, usually involving fast attacks against undefended pawns. However, since zugzwang positions do exist, it's ...
16
votes
3answers
2k views

Is the pawns only variant a draw?

In the pawns-only variant of chess, each side starts with 8 pawns and a king on the usual squares, no pieces, with other rules being the same as in regular chess, including promotion. While general ...
16
votes
4answers
1k views

Is Chaturanga/Shatranj an early form of chess or is this altogether different?

I had heard from someone that Chess evolved from Chaturanga then Shatranj. Are there any pointers towards this? I would like to know counter arguments as well, if any.
16
votes
5answers
26k views

Tactical difference between chess and Chinese chess

Is there any difference in tactics between chess and Chinese chess? If so, which one is the most fun? What are the important things to learn from it?
15
votes
3answers
23k views

What are the best openings in Antichess?

I am experiencing Antichess and it's more forcing than normal chess. What are the best openings for white ? Is there any winning opening whatever the black does respond? Antichess, according to ...
15
votes
3answers
612 views

Is the result in mini-chess known with perfect play?

I do not know, if "mini-chess" is the official name of the game I am talking about. In mini-chess, the players only start with the pawns (In particular, there are no kings!) The players ...
14
votes
3answers
4k views

Would bishops be stronger or weaker on the same coloured squares?

Assuming one or both players makes a mistake and transposes a bishop and the adjacent knight when setting up the board, would this help or hinder them? The answers to this similar question suggest it'...
14
votes
4answers
5k views

Why can't a dropped pawn deliver checkmate in Shogi?

In discussion surrounding another recent question, the fact came up that a "dropped" pawn in Shogi isn't allowed to deliver immediate checkmate, whereas any other type of piece can be dropped to ...
14
votes
2answers
1k views

What are the shogi equivalents of Fool's and Scholar's mate?

In western chess, the Fool's mate and Scholar's Mate are two well-known mates that take very few moves from the starting position. What would be the shogi equivalents to these, or, more generally, ...
14
votes
2answers
600 views

How many moves of head start does white need for a guaranteed win?

As we all know, it is not known whether white can always win in chess with optimal play. If, however, white got to make two moves before black made their first move would they be able to win with ...
14
votes
2answers
864 views

How to weakly solve Tiger Hunt, Atlantis Chess and Peasants' Revolt

Tiger Hunt is a chess variant where an entire army without a queen fight against a royal amazon (tiger, queen+knight). I believe it is certainly a win for the army just like Marahaja and Sepoys. I ...
13
votes
2answers
2k views

How do computers play three-check chess?

How do computers evaluate three-check chess positions where the first side to check the other side three times wins? How do they value the first and second checks? It looks like the position ...
13
votes
1answer
1k views

Can you castle twice in Chess960?

Consider this Chess960 game. [FEN "rnkqbbnr/pppppppp/8/8/8/8/PPPPPPPP/RNKQBBNR w KQkq - 0 1"] 1. d4 Na6 2. e4 Nb8 3. Ba5 Na6 4. Bb5 Nb8 5. Qh5 Na6 6. Nh3 Nb8 7. Na3 Na6 8. O-O-O Nb8 9. Rd3 ...
12
votes
3answers
3k views

About the 3D chess they play on Star Trek

They play a type of 3D chess on Star Trek ( the 60's series) not on a 8x8x8 3D board but on some smaller variation. Yet the game as they have it is supposed to be complicated. Are there real rules and ...
12
votes
3answers
876 views

How likely is it that a non-orthodox promotion is optimal?

Underpromotion is an interesting aspect of chess, but there are other possibilities that aren't allowed under modern rules. One is the so called "dummy pawn" as this question discusses: When (if ever)...
12
votes
3answers
7k views

Horde Chess Guide? [closed]

I have recently discovered Horde Chess on lichess.org and was wondering if there is somewhere a online guide on some openings or on some general tactic? I'm really a beginner in general chess itself ...
12
votes
2answers
776 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 ...
12
votes
1answer
396 views

How much material is needed to force the capture of a lone queen (for example in horde chess)?

In horde chess, the following starting position is used: [FEN "rnbqkbnr/pppppppp/8/1PP2PP1/PPPPPPPP/PPPPPPPP/PPPPPPPP/PPPPPPPP w - - 0 1"] The goal of White is to checkmate Black; the goal ...
11
votes
3answers
6k views

Why did Kung Fu Chess shut down?

Kung Fu Chess, a chess variant in which there are no turns (everyone can move at once with a time delay for each piece), began in 2002 by Shizmoo games, and the website suddenly went offline in 2008 ...
11
votes
7answers
988 views

What chess *scoring* alternatives exist?

Chess (often being classified as a sport) stands almost alone among sports in that its results are of a strictly ternary nature that is not quantified any further: The only possible outcomes are a win,...
11
votes
2answers
497 views

Does the chick promotion rule in dobutsu shogi really matter?

In dobutsu shogi, the chick (Japanese pawn) promotes to a chicken (Gold general). In my experience this promotion occurs only rarely and I suspect after much blundering. Does the chick promotion rule ...
11
votes
2answers
515 views

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 ...
11
votes
3answers
383 views

Looking for a chess variant with a circular board

I am looking for a certain chess variant played on a circular board. The variant is played with the usual chess pieces (no fairies involved) on a peculiar circular board. The central part of the ...
10
votes
3answers
4k views

In Hand and Brain chess, is the stronger player generally preferred to be the hand or the brain?

Exactly what it says on the tin, as the British say: In Hand and Brain chess, is the stronger player generally preferred to be the hand or the brain? And secondarily: Is the answer to the previous ...
10
votes
2answers
1k views

What "double moves" are sometimes considered legal?

As we know, castling is a legal "double move," where two pieces are moved at once. But in my country, Indonesia, in my childhood, the opening below was an 'assumed legal' double move to counter 1.e4 ...
10
votes
3answers
1k views

About Alan Turing and chess

I read Turing had some algorithm or method he could use to play chess 'against' this pen and paper algorithm assigning certain numerical values to each piece. Is this true? Is there a pen and paper ...
10
votes
4answers
5k views

Where can I get a nice set for Capablanca chess?

Because I'm odd, I'm interested in obtaining a nice-looking set (that need not be portable) for Capablanca chess, the third world champion's chess variant which is played on 10 x 8 board and features ...
10
votes
1answer
4k views

Is there software that simulates the Tri-D or 3-D chess as seen in Star Trek?

I want to try this game without making/buying a board and it is easier to learn to play when the computer can prevent invalid moves. Does any software, preferably freeware, exist which simulates this ...
10
votes
2answers
686 views

Is a "Strong King" handicap really as powerful as is claimed?

Wikipedia quotes an analysis by GM Harry Golombek (from Golombek’s Encyclopedia of Chess, Crown Publishers, 1977, p. 218. I do not have access to the source) where he lists possible handicaps, in ...
9
votes
3answers
2k views

Could two kings force checkmate against a lone king?

I was looking at minimal combinations of material needed to force checkmate (K+R, Q+B, R+N+N, etc). You end up with a sort of threshold of how much material is needed, and that sort of assigns a ...
9
votes
5answers
4k views

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 ...
9
votes
3answers
2k views

Has loser chess been solved?

Loser chess has a benefit of sorts. There are many turns where moves are forced. So my question is, has it been solved? I'd say that the move tree is much smaller than chess. If not: How much would ...
9
votes
3answers
1k views

Antichess piece value

What is the point value of each chess piece in Antichess? I think they don't need to be negative values, because you're just going after the lower valued ones. In particular, I wonder what the value ...
9
votes
4answers
886 views

Variant in which two pieces can occupy a single square

A friend and I tried playing this variant yesterday. My question is: Surely someone has looked at this before. Does it have a standard name? Or is there something obviously wrong with it that my ...
9
votes
3answers
1k views

If the back row of white pieces is moved to be in front of the pawns, which side should I play?

I remember this starting position played many times by my grandfathers. But I am too young to recollect the results of their games. If I have to choose, which side should I play? (White moves 1st)
9
votes
3answers
2k views

Openings in King of the Hill

As you probably know, "King of the hill" (KOTH) is a variant of chess where one can win either like in classical chess or by putting the king in the central squares, namely d4, e4, d5 and e5, by a ...

1
2 3 4 5