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 Chess variants (8x8)

including Amazon, Anti, Atomic, Berolina, Corner, Crazy Screen, Cylinder, Dark, Extinction, Fischer Random, Fortress, Horde, Knight Relay, Legan, Loop, Maharajah, Screen, Three Checks

For posting:
- invitations to games (you can also use the New Game menu)
- information about upcoming tournaments
- discussion of games (please limit this to completed games or discussion on how a game has arrived at a certain position ... speculation on who has an advantage or the benefits of potential moves is not permitted)
- links to interesting related sites (non-promotional)

Community Announcements:
- Nasmichael is helping to co-ordinate the Fischer Random Chess Email Chess (FRCEC) Club and can set up quad or trio games if you send him a PM here.


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28. Marzo 2014, 20:30:32
andreas 
Asunto: Re:
andreas: Even better would be to have Bughouse, which is very popular and fun chess variant.

28. Marzo 2014, 20:28:58
andreas 
Asunto: Re:
Energizer: Shatranj is rather slow game. I would prefer Double Move Chess or Progressive Chess.

18. Febrero 2008, 20:26:44
andreas 
Asunto: Re: Dark Chess draw rules
Lawless: 40 half-moves (i.e 20 full moves) limit is too low. As a consequence, many position, which are still full of life will be declared a draw, e.g. in this game: Dark Chess (andreas vs. Lawless) there were no captures for 28 full moves.

As alternative proposal I would suggest to keep 50-moves rule from the chess, i.e. if no capture or pawn move is made in 50 moves, a player get an option to declare the game a draw. Since players can't know when this occur, the situation should be detected by BrainKing automatically. But instead of automatically ending the game, a new button should appear on the game page: "Declare draw by 50-moves rules". The players then have an option to continue the game or finish it with a draw.

14. Septiembre 2007, 22:58:53
andreas 
Asunto: Re: (IYT) It's Your Turn's=> Atomic Chess version
Walter Montego: This game is also called "Beirut Chess", it was inveneted by Jim Winslow in 1991. I never played it, but looks like a fun!

5. Marzo 2007, 22:48:53
andreas 
Asunto: Re: Ice Age Chess New Tactics!
mezzanine: Certainly, piece values in Ice Age Chess are completely different from that in chess. Pawns and knights are considerably more valuable. Rooks and bishops are about the same value.

I think piece values are something like:
* bishop: 2 pawns
* rook: 2 pawns
* knight: 4 pawns
* queen: 5 pawns

23. Enero 2007, 12:26:23
andreas 
Asunto: Re: Change the subject
Pafl: The game with 54 moves (finished in pawn endgame): Dice Chess (AbigailII vs. andreas)

24. Abril 2006, 16:31:38
andreas 
Asunto: Atomic chess rules
Is it legal in Atomic chess for king to move close to opponents king? For example, white has a king on e1 and black on d3. Can black king move to d2?

From simply reading the rules it seems to be Ok, white can't capture black's king with Ke1xd2 because his king would be destroyd in explosion as well.

28. Noviembre 2005, 08:25:03
andreas 
Asunto: Re: 2 player bughouse
HalfPawn: It is called "Loop Chess" here.

5. Octubre 2005, 08:36:35
andreas 
Asunto: Re: Dark Chess Rules
Doerdich: You get up-to-date information in both cases: after your move and after the move of your opponent. After you make a move it is best to chose "Move and stay here" option to see what is changed.

24. Septiembre 2005, 10:46:51
andreas 
Asunto: Re: 1. Nc3 might also lose!
Doerdich: I think 1. Nc3 is a weak move and loses significant advantage White have in this chess variant after 1. e4.

25. Agosto 2005, 13:19:40
andreas 
Asunto: Re:
Modificado por andreas (25. Agosto 2005, 13:30:07)
nabla: To avoid forced win for white, "a pie rule" can be employed (like in Hex). After the first player (with white) makes a first move, the second player (with black) has an option to rotate the board, so that opponents change piece colors. Now the game continues as usual, first player has black pieces now and he is to move.

The second player has an option to rotate the board only once, after the first move of the first player.

26. Octubre 2004, 16:27:49
andreas 
Asunto: Re: opening book
There is a binary openning book for Sjeng engine (about 300Kb). I think it is compiled from a collection of Crazyhouse games played at FICS.

7. Enero 2004, 00:48:14
andreas 
Asunto: Re: Atomic Dark Chess
The problem with combinations is that there could be too few people who will play them. For Atomic Dark Chess only people who likes both of them will likely to play it.

13. Diciembre 2003, 22:14:33
andreas 
Asunto: Stalemate
Is stalemate possible in Dark Chess? For example, assume White has a King on h1, Queen on g6, Black King on h8. Black to move. In chess it would be a draw because of stalemate. However in Dark Chess it is legal to move a King into check so it is look like Black have to make a move and will lose. Does anybody knows how this situation is really handled on this site?

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