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Game Courier Logs. View the logs of games played on Game Courier.[All Comments] [Add Comment or Rating]
Daniel Zacharias wrote on Sun, Sep 29 01:44 AM UTC:

I'm not able to view any game where it's my turn


Alice Chess. Classic Variant where pieces switch between two boards whenever they move. (2x(8x8), Cells: 128) (Recognized!)[All Comments] [Add Comment or Rating]
David Paulowich wrote on Sun, Sep 29 02:26 AM UTC:

From my point of view, the most interesting Alice Chess End-Game Tables would be:

King and Queen vs King and Rook,

King and Rook vs King and Knight,

King and Dragon Horse vs King and Knight.

I want to believe that a Dragon Horse(BW) can defeat a Knight on the 8x8 board, but it has never been tested. That confrontation can happen in four of my variants here, including my latest: Alice Courier Chess.

Meanwhile your Checkmating Applet keeps providing solutions to my questions. I was delighted to learn that King, Knight and Alibaba(AD) can force stalemate victories in:

25 moves on 8x8 --- 35 moves on 12x8 --- 36 moves on 10x10.


Game Courier Logs. View the logs of games played on Game Courier.[All Comments] [Add Comment or Rating]
🕸📝Fergus Duniho wrote on Sun, Sep 29 02:41 AM UTC in reply to Daniel Zacharias from 01:44 AM:

I'm not able to view any game where it's my turn

It seems I introduced a syntax error when making corrections for lost time. To compensate for that, I have now reduced the length of interrupted moves by 48 hours. I have now fixed the error, and you should be able to view your games now.


Joker. Moves like last piece moved by the opponent.[All Comments] [Add Comment or Rating]
HaruN Y wrote on Sun, Sep 29 06:12 AM UTC:

There was a poll about what should happen when a mimic lands on a promotion tile. The results are:

Promote just like the last moved piece.

7% 2 votes

Promote only as a mimic base piece.

15% 4 votes

All options - last moved piece and mimic.

63% 17 votes

I have no idea what this means.

11% 3 votes

Something else.

4% 1 vote


How to Design and Post Your Own Game. A reference for those who want to post their own games here.[All Comments] [Add Comment or Rating]
Davor Vujacic wrote on Sun, Sep 29 06:19 AM UTC:

Hey guys! I prepared my game last weekend but it's not visible when I search for it with 'Your Submissions Awaiting Review'. What did I wrong? https://www.chessvariants.com/rules/no-castling-random-chess


Random No Castling Chess. Members-Only Random chess without casting. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]

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Alice Chess. Classic Variant where pieces switch between two boards whenever they move. (2x(8x8), Cells: 128) (Recognized!)[All Comments] [Add Comment or Rating]
H. G. Muller wrote on Sun, Sep 29 12:07 PM UTC in reply to David Paulowich from 02:26 AM:

EGT on plain 8x8 boards can be generated with FairyGen, and I can confirm that Dragon Horse beats Knight there. As well as Bishop, Nightrider, Woody Rook (WD), Modern Elephant (FA), Phoenix (WA). It cannot beat a Commoner, though. But that is no surprise; even a Queen cannot beat a Commoner, when the latter is connected with its King. (Because the enemy King cannot approach it.)

Mate with Knight + Alibaba is an interesting case. The Alibaba is a 'potent' piece because of its D move, so if you can drive the bare King to a corner the Alibaba can reach, checkmating is easy. But of course the Alibaba can only acces 1/4 of the board, and on 8x8 there always is a single corner it can reach. (The Alibaba is also 'forking' in those corners, and together with the 'semi-potent' Knight it can also force an edge mate there, but that doesn't provide extra possibilities.) Apparently it is too difficult for Knight + Alibaba to drive the bare King to the deadly corner from any of the other corners, so the end-game is a general draw, with only 1% of the positions with black on move a forced loss. (Presumably because the bare King is already trapped in the deadly corner there.)

On 9x9 this goes up to 24%. In this case all corners are equivalent, and 1 of the 4 Alibaba placements (31% to be exact) allows forcing of checkmate in all 4 corners. When stalemating is a win 77% of the positions with black on move is lost. (And 99.3% of the positions with white on move is won.)


Joker. Moves like last piece moved by the opponent.[All Comments] [Add Comment or Rating]
H. G. Muller wrote on Sun, Sep 29 01:17 PM UTC in reply to HaruN Y from 06:12 AM:

Not sure I have seen that poll.

But I would say that a mimic moves / promotes / does whatever as the rules of the variant it participates in says it does. It is not a standard piece. Usually mimicking is about moving, and things like promotions or royalty are not part of the move. Of course you could define a piece that mimics the promotion of the last-moved piece too. Or even only that, always keeping its own move, but allowed to promote on it (no matter where it goes) when the opponent promoted. Or even promote in its own prescribed way when the opponent promoted. The possibilities are endless. Of course promotion of a mimic would in general make it a non-mimic. (Unless a game has various types of mimics in it.)

A generalization of a mimic is a piece whose move and/or other properties depends in some way on the previous move of the opponent.


Aurelian Florea wrote on Sun, Sep 29 05:20 PM UTC in reply to H. G. Muller from 01:17 PM:

If you get again at the joker, maybe you can find some time to think about the transferrer (joker for chess with different armies). Not very important though, as I will write my own C++ program eventually. The one I'm writing is going well.


How to Design and Post Your Own Game. A reference for those who want to post their own games here.[All Comments] [Add Comment or Rating]
🕸📝Fergus Duniho wrote on Sun, Sep 29 06:01 PM UTC in reply to Davor Vujacic from 06:19 AM:

I was there when I checked. It is there as "No Castling Random Chess", not as "Random No Castling Chess".


Featured Chess Variants. Chess Variants Featured in our Page Headers.[All Comments] [Add Comment or Rating]
Daniel Zacharias wrote on Sun, Sep 29 09:44 PM UTC:

I'll add seconds for Balbo's Chess, Elk Chess, and Three Check


BishopsA game information page
. four-player game.[All Comments] [Add Comment or Rating]
💡📝Edwin Wilhelm wrote on Mon, Sep 30 12:44 PM UTC in reply to JT K from Fri Sep 8 2017 05:36 PM:

This rule was added to speed the game up after a King is "safe" in its own corner square. The King must re-enter however when 2 of the 3 "Queens" are captured and if he cannot enter the Chess playing 64 squares without being in check , then he is checkmated in his corner square and loses.


Featured Chess Variants. Chess Variants Featured in our Page Headers.[All Comments] [Add Comment or Rating]
🕸📝Fergus Duniho wrote on Tue, Oct 1 01:14 AM UTC in reply to Daniel Zacharias from Sun Sep 29 09:44 PM:

I have added your seconds to the table, and it looks like we can go with Balbo's Chess for October. The other two need some work before they are ready to be featured.


Alice Courier Chess. Members-Only Alice Chess with two Couriers (BW) and a Jester (two step Ferz). (2x(8x8), Cells: 128) [All Comments] [Add Comment or Rating]

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Featured Chess Variants. Chess Variants Featured in our Page Headers.[All Comments] [Add Comment or Rating]
Daniel Zacharias wrote on Tue, Oct 1 11:42 PM UTC in reply to Fergus Duniho from 01:14 AM:

What do they need?


Dai Dai Shogi. (Updated!) Historical large Shogi variant. (17x17, Cells: 289) [All Comments] [Add Comment or Rating]
🔔Notification on Wed, Oct 2 01:46 AM UTC:

The editor A. M. DeWitt has revised this page.


@ HaruN Y[All Comments] [Add Comment or Rating]
HaruN Y wrote on Wed, Oct 2 03:55 AM UTC:

Carbuncular Carbuncles by Madman, AKA madman_madchessdev


Jabberwocky Chess. Chess with transformations of pieces. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
💡📝Вадря Покштя wrote on Wed, Oct 2 06:39 AM UTC:

My submission is ready for publication.


Great Bird Chess. Members-Only Missing description (8x8, Cells: 64) [All Comments] [Add Comment or Rating]

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Frog/Hannibal/Waffle chess with Gryphon/Manticore and falcon. Expansions of Kevin Pacey's Frog/Hannibal/Wafle Chess. (9x10, Cells: 90) [All Comments] [Add Comment or Rating]
💡📝Aurelian Florea wrote on Thu, Oct 3 07:16 AM UTC in reply to Aurelian Florea from Fri Sep 20 09:17 AM:

As the weekend is approaching, I'd like to give a friendly reminder to the editors that this article as ready for review!


Jabberwocky Chess. Chess with transformations of pieces. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
A. M. DeWitt wrote on Thu, Oct 3 02:59 PM UTC:

A most interesting concept.


💡📝Вадря Покштя wrote on Thu, Oct 3 04:27 PM UTC in reply to A. M. DeWitt from 02:59 PM:

Thank you! Here is a test game https://www.chessvariants.com/play/pbm/play.php?game=Jabberwocky+Chess&log=pokshtya-cvgameroom-2024-275-280

The final position in this game is Jabberwocky Mate - The Black King cannot capture the White Rook because then Black would be left without a king.


Frog/Hannibal/Waffle chess with Gryphon/Manticore and falcon. Expansions of Kevin Pacey's Frog/Hannibal/Wafle Chess. (9x10, Cells: 90) [All Comments] [Add Comment or Rating]
Lev Grigoriev wrote on Thu, Oct 3 07:24 PM UTC in reply to Aurelian Florea from 07:16 AM:Excellent ★★★★★

Woah, somehow you got it!!!

really one page instead of six is what I suggested much time ago. Well done!

Only flaw is that some pieces are linked to Piececlopedia while others aren’t.


💡📝Aurelian Florea wrote on Thu, Oct 3 07:44 PM UTC in reply to Lev Grigoriev from 07:24 PM:

Some pieces don't have piececlopedia articles.


💡📝Aurelian Florea wrote on Thu, Oct 3 07:51 PM UTC in reply to Lev Grigoriev from 07:24 PM:

HG Muller has taught some new things and then I could do it.


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