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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

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- 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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4. juli 2006, 16:24:59
grenv 
Ämne: Re: Atomic Chess
sewzay: It should be a draw, but I think the players would have to agree, i don't think it's automatic.

1. juni 2006, 22:56:40
grenv 
Ämne: Re: ambigous stats
Pythagoras: I didn't say that white didn't have an advantage, only that it wasn't a clear advantage. If there is an advantage to white then it is unclear so far.

1. juni 2006, 22:39:46
grenv 
Ämne: Re: ambigous stats
Pythagoras: On the other hand, since it's not clear from the statistics that either color has an advantage, it is correct to say that there is no clear advantage to white, whether we find out later there is or not.

18. maj 2006, 19:31:07
grenv 
Ämne: Re: Atomic opening
tipau: Ha, not a bad trick. White has to play f3 (either instead of Nf7 or after black castles), followed by e4 and seems to come out better to me (on first glance).

17. maj 2006, 01:48:08
grenv 
Ämne: Re: I protest!
BIG BAD WOLF: The price of playing so many games you can't remember which is which, lol.

24. april 2006, 21:55:11
grenv 
Ämne: Re:
mangue: Point taken, however I still maintain that h4 is better and wouldn't even consider Nf7.

24. april 2006, 18:41:54
grenv 
Ämne: Re: Atomic opening
mangue: I think black has the best of that position actually after Bb4 and Nc6

24. april 2006, 16:49:27
grenv 
Ämne: Re: Atomic chess rules
andreas: You're correct, there is nothing illegal about such a move. In fact it is frequently a tactic used to avoid direct capture and can prolong the endgame.

24. april 2006, 16:20:49
grenv 
Ämne: Re: Atomic opening
mrundersun: There are some traps for white, but if played correctly it's a bad opening for black in my opinion.

Typical line sees black down in material without much counterattack:

1.Nf3 e5
2.Ng5 f5
3.h4!
NOT 3.Nf7?? which quickly loses to 3...Qh4
3... c6
4.Nxh7 Qa5

If you still think black can have an effective game then challenge me as black. :)

28. mars 2006, 03:13:23
grenv 
Ämne: Re: Encyclopedia of Chess Variants
JinkyOng: What variants are these?

16. februari 2006, 20:37:35
grenv 
Ämne: Re:
Kipling: Don't get me wrong, you had a better position. It's just that 3 times repitition is a draw, there's no agreement required.

16. februari 2006, 17:27:48
grenv 
Ämne: Re: draw by repitition
Pythagoras: LOL back, I doubt i'll ever play this silly game again so he may as well wait for Godot.

16. februari 2006, 17:21:44
grenv 
Ämne: Re: draw by repitition
Pythagoras: I tried twice already

16. februari 2006, 16:00:18
grenv 
Ämne: draw by repitition
How come this game isn't a draw? There's nothing in the Legan rules about repitition not being counted?

http://brainking.com/en/ShowGame?g=1372225

5. februari 2006, 07:49:33
grenv 
Ämne: Re:
رضا: it's the only reason that i can think of.

4. februari 2006, 23:36:27
grenv 
Ämne: Re:
Pythagoras: I won't insist, I'm not that interested actually.

I looked when you had 5 minutes to go and you had 14 vacation days. You still have 14 days vacation even after the time ran out.

4. februari 2006, 23:24:13
grenv 
Ämne: Re:
Pythagoras: To lazy, or is such a disussion beneath you?
Since you've only played 2 games I'll guess that this is posturing rather than a statement with substance.

You timed out against me by the way, but somehow through the silly house rules managed to stay alive without appearing to have lost a vacation day. How is that possible?

4. februari 2006, 22:37:53
grenv 
Ämne: Re:
Pythagoras: Legan is a little silly, but I'm not sure why it's any more drawish than chess. In fact the %age of draws on this site is about the same as the regular game. I don't even want to understand why white wins horde more often, but it seems I've drawn the short straw playing black against Fencer. Hmm.

4. februari 2006, 17:03:42
grenv 
Well, i got 3 games I've never even looked at, Legan, Horde (which seems silly - especially since i'm playing black) and Grand. I didn't get a single game of dark or atomic :(

oh well, more of a challenge I guess.

4. februari 2006, 02:57:19
grenv 
Ämne: Re: Random games
Pythagoras: Speaking of fearing playing me, I note it has been your turn in both our Dark Chess games for a while.

3. februari 2006, 15:14:11
grenv 
Ämne: Re: Random games
Fencer: lol, i'm in. Some of these variants I've never played, so it will be interesting. :)

1. februari 2006, 17:38:27
grenv 
Ämne: Re:
Salkkuman: Yes. Deleting a game like screenchess should be available before the pieces are set up, but not afterwards. At that point it is equal to resigning.

29. november 2005, 22:15:40
grenv 
Ämne: Re:
mangue: Quite right, or I'll start promoting to an archbishop in regular chess!

25. november 2005, 18:42:30
grenv 
Ämne: Re: Games for the Encyclopedia of Chess Variants
Pythagoras: I have no idea why it is private, I would never willingly agree to such a game, but I also don't check carefully apparently.

I messaged you the PGN. If anyone else is interested let me know.

25. november 2005, 16:39:09
grenv 
Ämne: Re: Games for the Encyclopedia of Chess Variants
nabla: Here's a couple to get the ball rolling between Walter and I that I think are quite good. Is that the kind of thing you're after?

http://brainking.com/en/ArchivedGame?g=593132&i=1
http://brainking.com/en/ArchivedGame?g=47630&i=1

and how about this Atomic game?

http://brainking.com/en/ArchivedGame?g=738624&i=1

7. november 2005, 23:18:40
grenv 
Ämne: Re:
HalfPawn: White seems to have an advantage, but it doesn't seem to be overwhelming. I think the jury's still out though.

13. oktober 2005, 03:20:53
grenv 
Ämne: Re: Strange move in darkchess
Doerdich: I'll give you a pass because you have only finished one game of dark chess. The fact is that a pawn down early is relatively meaningless so the move is not that risky. It's actually not common for someone to move 1...d6 in my experience.

On the other hand you would have seen the e5 move so how is it a cheat? Just move the knight.

1. oktober 2005, 03:11:32
grenv 
Ämne: Re: Mandatory 1. Nc3 tournament for 3+ chess
Doerdich: Then you should have named the first 4 moves. It wasn't crystal clear from your earlier posts that this was the reason (though it appeared to be the only point of the move).

I believe it is quite common to sacrifice a minor piece for a check at some point, and it isn't clearly a win, so this seems a little moot.

30. september 2005, 22:05:57
grenv 
Ämne: Re:
Luke Skywalker: I believe that is a draw. However it is very theoretical and would need to be engineered by both players.

6. september 2005, 20:57:40
grenv 
Ämne: Re: Knight relay question
Fencer: Thanks. Fortunately it didn't really affect this game much as I had pieces ready to capture it. :)

6. september 2005, 16:51:36
grenv 
Ämne: Knight relay question
Look at move 16 of this game
http://brainking.com/en/ShowGame?g=1017689

The pawn on d3 checked my king on e1, due to the knight relay.

HOWEVER, the rules here (and elsewhere) say:
"A pawn powered by the previous point does not extend its moving options to the 1st or 8th row. For example, a pawn on C6 which is guarded by a knight on E7, cannot jump to B8 or D8."

So is this a bug?

28. augusti 2005, 19:49:29
grenv 
Ämne: Re: Atomic chess
Pioneer54: I've played this game (Random atomic) on another site and it works pretty well. I agree that there is no compelling advantage to white, but that is true of regular chess as well, yet FRC is still a good game.

27. augusti 2005, 20:45:38
grenv 
Ämne: FRC for Atomic
I can't see a FRC position that would favor white a great deal in Atomic chess. If someone disagrees post the position and starting move for white. Otherwise I would be in favor of requesting it as another variation.

Currently it is played on schemingmind.com

25. augusti 2005, 17:05:09
grenv 
Ämne: Re:
nabla: Not bad.

Problem for everyone: Design a starting position, consistant with the rules of FRC which is a forced win for white in Atomic.

I'll work on it as well. :)

24. augusti 2005, 22:11:22
grenv 
Ämne: Re: "atomic chess pro"
chessmec: Ok, but you wouldn't want to do that unless you thought it was at least a little unbalanced. I was trying to say that it is extremely well balanced as it is when played well.

Actually to get rid of all the opening theory, which is what makes it unbalanced if anything, I think it would be good to have fischer Random Atomic Chess.

24. augusti 2005, 21:51:02
grenv 
Ämne: Re: "atomic chess pro"
chessmec: I used to think it was a little unbalanced as well, but recent games against reaally good players (here and on other sites) has shown me otherwise.

22. augusti 2005, 18:44:07
grenv 
Ämne: Re: R in after move in Knight Relay Chess.
AbigailII: I suspect "Relay"

23. juni 2005, 15:43:38
grenv 
Ämne: Re:
reza: What bug?

6. juni 2005, 22:42:42
grenv 
Ämne: Re:
chessmec: ? i did.

6. juni 2005, 22:27:16
grenv 
Ämne: Re:
chessmec: So in what language are stupid and inexperienced synonyms?
Also it is absolutely incorrect that an inexperienced player would see the strategy espoused here easily, certainly a stupid person would have no hope.

6. juni 2005, 22:08:51
grenv 
Ämne: Re:
Chessmaster1000: You may not have to think about it, but others might. Calling those people stupid will not win you any friends.

6. juni 2005, 19:27:07
grenv 
Ämne: Re:
Pedro Martínez: Ouch.

On the other hand, the question was asked, and then apparently we were told an idiot would know, so a fair comment.

6. juni 2005, 14:57:18
grenv 
Ämne: Re:
Chessmaster1000: That's a little arrogant, I think many inexperienced players playing the KR would lose to the king, especially if they thought they could win. For instance the method a rook beats a king one on one may be tried, and this would lose.

6. april 2005, 20:34:32
grenv 
Ämne: Re:
Matarilevich: lol. There could be, though it would be a lot more difficult to program well!

5. april 2005, 12:45:55
grenv 
Ämne: Re: Ed doesn't play Dark Chess
Walter Montego: He doesn't play dark chess for the simple reason that he couldn't possibly win every game.

26. januari 2005, 15:39:15
grenv 
Yes it can. Into, out of and through check are all possible. Clearly into would be a mistake

26. januari 2005, 03:59:53
grenv 
The example was K vs K-Q-Q which, as you say, is a win for the two queens if played accurately.

26. januari 2005, 01:06:50
grenv 
Ämne: Re:
Chessmaster1000: Not so. With 2 Queens it is simply a matter of forcing the white king to move away from the black king. In this situation:

White king is forced to move
1.Kb2 Ka1
2.Ka2 Qb2 (the one in unspecified pos)

Now white has to move the king away... QED

17. januari 2005, 20:58:07
grenv 
I just started an Atomic tournament that should decide the best player when it finallly finishes in about 2010.

Instead, if anyone wants to join mine, it should be over very quickly - one day per move, all welcome. I'll wait for quite a few entrants before starting.

Quick Tournament

15. januari 2005, 20:42:03
grenv 
In fact castling doesn't even connect the rooks, since they are right next to each other to begin with. Castling is almost never a good move I would think.

I agree g3(or g4) is good for releasing the bishop. c2 is not as weak because a3 is a legitamate spot for the knight.

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