Fischer chess

I propose to implement Fischer chess. You could choose a position ID (0-960) or have it generated randomly.

It seems that my idea needs a little publicity. Fischer's chess is a chess game where the pieces in the last row are shuffled according to the following rules: * the king must be between the rooks. * the lances cannot be on squares of the same color. * the location of the black pieces is mirrored to the white ones. * castling is basically the same as in regular chess. At the end of castling, the king and rook must be in the same place, as in standard chess - white has a large castling Kc1 Rd1, small Kg1 Rf1. Black has the 8th row, respectively. More precisely from Wikipedia. It is a game in which knowledge of the openings does not play a role so much as playing skill. I have played it a little myself and I would say that it adds quite a bit of spice to the game of chess.

Hello, The problem is this: A game can be interesting and exciting, but if users don't start playing it, it's pointless for us to invest in developing it. Examples include pickles (1459 games) and three fires (421 games). If we compare them with chess (41518 games), we can see that so-called derivatives are played, but relatively few. In conclusion - if at least 10 users support your idea on this forum, we will do a small analysis and say how long it will take us to develop it. Best regards, Vint.ee Team

I've played this game a few times and it was pretty exciting. The opponent had a normal button layout and I had changed it, but it still didn't allow for theory and it added a lot of spice to the game. I think it's totally playable, and if not really, then it can be pushed back a bit in terms of priorities.

*Definitely* Fischer's chess is not a derivative in the sense that the rules of chess remain the same -- just the starting position is different. Derivatives are those where the rules of the game are changed -- a.k.a. the game lasts until the other opponent makes a third mistake ;) So it could still be done (it shouldn't be difficult to "implement" it.) And my respects to Grandmaster Fischer.

Should the position ID be selectable at all? Perhaps it would be better to always generate this ID randomly. In Fisher chess tournaments, it would probably also make sense to generate a random starting position for each game.

What about castling in Fischer chess? The Wikipedia explanation was incomprehensible... Is it possible to castle from any position of the king and rook, as long as the final position is the same as in regular chess?

Does anyone have experience playing Fischer chess online? Or does anyone have a computer program where you can play it?

The same rules apply to castling - the king and rook must not have moved, you cannot castling through fire. The starting position is the same as the opening, the end is the same as in regular chess. It also applies if the rook is on the king. I've played it, there should be a help file on Ficsis about this.

käisin vaatamas seda reeglistikku:
The rules of F.R. Chess are the same as Classical Chess, except for the
castling rule. Castling is somewhat modified and broadened to allow for the
possibility of castling in the various 960 starting positions. Please note
the following points about castling:
Depending on the pre-castling position of the castling King and Rook, the
castling maneuver is performed by one of these four methods:

1. By on one turn making one move with the King, and making one move with
the Rook ("double-move" castling).
2. By transposing the position of the King and the Rook ("transposition"
castling).
3. By making only one move - with the King ("King-move-only" castling).
4. By making only one move - with the Rook ("Rook-move-only' castling).
o In "double-move" castling, if the King is standing on the square the Rook
will occupy naturally you must move the King first and then the Rook; if
the Rook is standing on the square the King will occupy naturally you must
move the Rook first and then the King; otherwise whether you move the King
first and then the Rook, or the Rook first and then the King is strictly
your choice.

o In "double-move" castling either the King jumps over the Rook or else the
Rook jumps over the King.

o In "King-move-only" castling the King always jumps over the Rook.

o In "Rook-move-only" castling the Rook always jumps over the King.

o "a"-side castling (0-0-0), and "h"-side castling (0-0) are the F.R. Chess
equivalents of Queen-side or long castling (0-0-0), and King-side or short
castling (0-0) respectively, of Classical Chess.

o In F.R. Chess:

1. White's "a"-side castling (0-0-0) is performed with the previously
unmoved White King and the previously unmoved Rook standing to its left. After White's "a"-side castling (0-0-0) the White King stands on
c1 and the Rook stands on d1. Black's "a"-side castling (... 0-0-0) is
performed with the previously unmoved Black King and the previously
unmoved Rook standing to its right. After White's "a"-side castling
(0-0-0) the Black King stands on c8 and the aforementioned Rook stands
on d8.
2. White's "h"-side castling (0-0) is performed with the previously
unmoved White King and the previously unmoved Rook standing to its
right. After White's "h"-side castling (0-0) the White King stands on
g1 and the Rook stands on f1. Black's "h"-side castling (... 0-0) is
performed with the previously unmoved Black King and the previously
unmoved Rook standing to its left. After Black's "h"-side castling
(... 0-0) the Black King stands on g8 and the Rook stands on f8.

o When castling, you are not allowed to make any capture(s).

o When castling, no other piece(s), yours or your opponent's, are allowed to
stand between the castling King and Rook.

o You are not allowed to castle if you are in check.

o You are not allowed to castle into check.
o Your King is not allowed to move through check or a "checked" square,
whether such squares are vacant or have a Rook on them. (A "checked"
square is a square that is attacked by one or more of your opponent's
pieces.)

o During "double-move" castling it is quite possible and not at all illegal
for a momentary stalemate, check, or checkmate to occur. Ignore it! You
must complete the "double-move" castling and then check for position
status.

o A given King or Rook move could be the first move of "double-move"
castling -OR- it could be a standard non-castling move. To avoid
ambiguities, your move is complete only when you push the appropriate
button on the chess clock.

o Suggestion: When playing a friendly game of F.R. Chess without benefit of
a chess clock, it might sometimes be a good idea to announce to your
opponent just before you castle, "I'm going to castle."
1. Once the White King has moved, White is not allowed to castle for the
rest of the game. Once the Black King has moved, Black is not allowed
to castle for the rest of the game.
2. If the rook Rook starting on the left of the White King has moved,
White is not allowed to "a"-side castle (0-0-0) for the rest of the
game. If the Rook starting on the right of the unmoved Black King has
moved, Black is not allowed to "a"-side castle (... 0-0-0) for the
rest of the game.
3. If the rook Rook starting on the right of the White King has moved,
White may not "h"-side castle (0-0) for the rest of the game. If the
Rook starting on the left of the Black King has moved, Black may not
"h"-side castle (... 0-0) for the rest of the game.
4. Once White has castled, White is not allowed to castle again for the
rest of the game. Once Black has castled, Black is not allowed to
castle again for the rest of the game.

o Observation: In F.R. Chess, it may be momentarily impossible to "a"-side
castle (0-0-0) and/or to "h"-side castle (0-0) because of the obstructing
position of your other unmoved Rook. These are frequent occurrences in
F.R. Chess.If you are ever in any doubt about the correct "before" and "after" castling positions in F.R. Chess, please consult the following tables, showing all
(84) possibilities of castling, (42) for White, and (42) for Black. Note that
there are only four (4) "After" positions, the same ones as for Classical
Chess.

White "a"-side castling (0-0-0):
--------------------------------
Before: Kg1; Rf1, e1, d1, c1, b1 or a1 After: Kc1; Rd1.
Before: Kf1; Re1, d1, c1, b1, or a1 After: Kc1; Rd1.
Before: Ke1; Rd1, c1, b1, or a1 After: Kc1; Rd1.
Before: Kd1; Rc1, b1 or a1 After: Kc1; Rd1.
Before: Kc1; Rb1 or a1 After: Kc1; Rd1.
Before: Kb1; Ra1 After: Kc1; Rd1.

White "h"-side castling (0-0):
------------------------------
Before: Kb1; Rc1, d1, e1, f1, g1 or h1. After: Kg1; Rf1.
Before: Kc1; Rd1, e1, f1, g1 or h1 After: Kg1; Rf1.
Before: Kd1; Re1, f1, g1 or h1 After: Kg1; Rf1.
Before: Ke1; Rf1, g1 or h1 After: Kg1; Rf1.
Before: Kf1; Rg1 or h1 After: Kg1; Rf1.
Before: Kg1; Rh1 After: Kg1; Rf1.

Black "a"-side castling (... 0-0-0):
------------------------------------
Before: Kg8; Rf8, e8, d8, c8, b8 or a8 After: Kc8; Rd8.
Before: Kf8; Re8, d8, c8, b8 or a8 After: Kc8; Rd8.
Before: Ke8; Rd8, c8, b8 or a8 After: Kc8; Rd8.
Before: Kd8; Rc8, b8 or a8 After: Kc8; Rd8.
Before: Kc8; Rb8 or a8 After: Kc8; Rd8.
Before: Kb8; Ra8 After: Kc8; Rd8.

Black "h"-side castling (... 0-0):
----------------------------------
Before: Kb8; Rc8, d8, e8, f8, g8 or h8 After: Kg8; Rf8.
Before: Kc8; Rd8, e8, f8, g8 or h8 After: Kg8; Rf8.
Before: Kd8; Re8, f8, g8 or h8 After: Kg8; Rf8.
Before: Ke8; Rf8, g8 or h8 After: Kg8; Rf8.
Before: Kf8; Rg8 or h8 After: Kg8; Rf8.
Before: Kg8; Rh8 After: Kg8; Rf8.

Käsk, millega kogu eelnevat osa ficsis esile manada: "help fr_rules"

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