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Comments by jean-louiscazaux

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Jetan. Play Edgar Rice Burrough's Jetan (Martian Chess).[All Comments] [Add Comment or Rating]
📝Jean-Louis Cazaux wrote on Sun, Mar 28, 2021 06:06 PM UTC in reply to Greg Strong from Sat Mar 27 11:39 PM:

Hi Greg

Maybe I did something wrong. Currently I'm helping Fredrik having a hot and big project on Jetan. We need a preset with the correct setup (the existing one has Princess and Chief wrongly switched) and possibly with another character table (the existing design are cute and beautiful but not practical at all). I've tried to do something alone, and the only I could do was to create a new preset. So I changed the name but it is exactly the same game. It is here: https://www.chessvariants.com/play/pbm/play.php?game%3DJetan-of-Barsoom%26settings%3DJetan-of-Barsoom I think that if you help me we could erase the preset I've made and just correct the new one. I'm sorry if I've made some confusion. Thank you for your help


The History of Chess Variants. A brief history of Chess variants from Chaturanga to the 21st century.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Sun, Apr 4, 2021 05:49 PM UTC in reply to Fergus Duniho from Fri Apr 2 10:10 PM:

I have this book and as an historian myself I am in close contact with Jim Png. We had a very long conversation just today. Coincidence. Jim Png is not saying that chess has been invented in China. I know that this issue is a complex one, too complex maybe for in hurry readers. What is explained here is that xiangqi had predecessors as a game, deep in ancient history. This is known and recognised by modern historians. What it is unknown is the relationship between these ancient mentions of xiangqi and the xiangqi that is known after Cen Shun story in the 9th century. Maybe it was another game, maybe not. The great merit of Jim Png is the meticulously collection of all testimonies from ancient Chinese texts and his trial to bring that to us. He does (because he is preparing another book) a work much valuable than many other writers have tried to do before him about Chinese Chess. And much more also that so many writers who are continuing to ignore a possible Chinese contribution just because they have once been told that chess had been invented in India and it cannot be otherwise.

Yes the connexion with liubo is puzzling and stimulating. Not only because the liubo board had a central "water" and there is a river in xiangqi. The rules of Liubo are still unknown, they are just guessed, and maybe more than one game was played with this material. There are 6 pieces per side, 1 being more important. There is 1 general and 5 pawns in xq. The liubo board is heavily marked, as the one for xq. Is that a coincidence or the trace of an influence? The fact that Janggi, which is not known before the 16th century, has no river is of course not a proof at all against a relation between liubo and xiangqi! Liubo disappeared just when xiangqi started to grow and this deserves some further studies.

I consider Jim Png as the person with the highest knowledge on history of Chinese games we have today.


Game Courier. PHP script for playing Chess variants online.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Mon, Apr 5, 2021 09:24 AM UTC:

Hi. I would like to know if it is possible and how to go back few moves. In a game of Jetan that we need to record, I've made a wrong move, few moves ago. As the rules are not enforced, I made that mistake. Is it possible to go back and cancel all subsequent moves? Thanks very much


The History of Chess Variants. A brief history of Chess variants from Chaturanga to the 21st century.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Tue, Apr 6, 2021 06:42 AM UTC in reply to Fergus Duniho from 02:38 AM:

It is rich matter, not simple to discuss in short sentences on a forum especially for me who doesn't master English language like you who makes the points like a lawyer. The fact that no other Asian chess than xiangqi has a river is not a discovery. Shogi is certainly more borrowing to South Asian varieties than from the continent as it has been demonstrated by Japanese historians, Sittuyin/Makruk are obviously descending from Indian varieties as these regions were under strong Indian cultural influence at least until the 13th c., and Janggi is not known in its ancient form so nobody knows if it had a river first or not. I, and Jim Png like me, do not believe that xiangqi is a direct descendent of Liubo, but that there is a link between them. For what I'm concerned I believe I've been clear on that in my books and my website. But I stop to discuss, people want to simplify everything. There are many people now on social networks, Wikipedia, etc., who knows everything at first sight, and say it loud especially against the authors of books who are never sure of nothing. So we are happy that with your "inductive case" it is now clear that Liubo has not influenced the formation of xiangqi. We are progressing and we can go on.


Game Courier. PHP script for playing Chess variants online.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Tue, Apr 6, 2021 06:43 AM UTC in reply to Fergus Duniho from Mon Apr 5 12:39 PM:

Thank you. Done.


Enlarged and Improved Chess. Early large-board variant from Holland.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Sun, Apr 11, 2021 06:21 PM UTC in reply to Jörg Knappen from Sat Apr 10 10:54 PM:

good finding Danke schön


Simplified Makpong. Makruk variant.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Sun, Apr 11, 2021 06:26 PM UTC:

I have not understood if the name of this game is Makpong or Simplified Makpong. If it is Simplified M., what is Makpong?


Jean-Louis Cazaux wrote on Sun, Apr 11, 2021 06:39 PM UTC:

Also, I am not sure to well understand the most important rule:

The King may capture an attacking piece if in range, but cannot capture out of double check.

what means "if in range"? Does that just means that the King may capture an attacking piece? If the attacking piece is not 1-square away from the King I don't see how the K would have been able to capture it anyway.

and what means "capture out of double check". Here I understand that if 2 pieces are attacking the K, he cannot capture both of them. But that is trivial too, no?

So I guess that the important rule is that when a K is under check he can capture the attacking piece but it is forbidden to move the K out of check, to interpose a piece between the K and the attacking piece, or to take the attacking piece with another piece than the K. Is it correct? Or to say that when a K is under check, the only authorized move is if the K can capture the attacking piece.

Would it be possible to re-write this with no ambiguity?

Thank you


Jean-Louis Cazaux wrote on Sun, Apr 11, 2021 08:19 PM UTC in reply to Henk Drost from 07:31 PM:

Thank you. So, I see that I had not understood everything right.


40x12 chess. Members-Only Missing description[All Comments] [Add Comment or Rating]

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Jean-Louis Cazaux wrote on Tue, Apr 13, 2021 07:39 PM UTC:

Does anyone know games which are using Alfil/Dabbaba/Threeleaper/Tripper. Musketeer Chess has it as an Hawk. Is there other games, and how they call this piece?


Jean-Louis Cazaux wrote on Wed, Apr 14, 2021 07:04 PM UTC in reply to Jörg Knappen from 09:34 AM:

This is true.


Jean-Louis Cazaux wrote on Wed, Apr 14, 2021 07:27 PM UTC in reply to Jean-Louis Cazaux from 07:04 PM:

Well, although I'm not sure it is so bad if the board is large enough.


Jetan. Martian Chess, coming from the book The Chessmen of Mars. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
📝Jean-Louis Cazaux wrote on Mon, Apr 19, 2021 12:33 PM UTC:

I wrote this page 24 years ago and I included this:


A variant

Even the Martians have variants on their own type of chess. According to Burroughs, the older version of Jetan had Odwars instead of Fliers that could not jump over intervening pieces.


I can't find where I had taken this information. It is simply wrong. Burroughs did not write this, actually he wrote that the Odwar and the Flier have the same power and move. It is just a different name for the SAME piece.

Letting this wrong information is confusing a lot of people. I cannot modify this page myself, so I beg an editor to simply remove this small paragraph which is incorrect. Thanks


Game Courier. PHP script for playing Chess variants online.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Thu, Apr 22, 2021 07:28 PM UTC:

The link for the rules in the page of the preset for Chess 9x9 does not send to the rules of this game but to the rules of Cardinal Chess instead. Maybe this should be corrected


Game Courier Developer's Guide. Learn how to design and program Chess variants for Game Courier.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Sat, Apr 24, 2021 10:59 AM UTC:

I apologise if my question is trivial, all this looks very complex for me. I want to use a set "Alfaerie for Metamachy" but for the moment it is limited to 26 pieces, using the 26 letters of the alphabet. Would it be possible to add few more using other letters such as the diacritic letters may be like é/É? Thanks


Mainzer Schach. Large variant with Janus, Marshall, and different setup. (11x8, Cells: 88) [All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Tue, Apr 27, 2021 03:27 PM UTC:

Nice design


About Game Courier. Web-based system for playing many different variants by email or in real-time.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Sun, May 2, 2021 07:37 AM UTC in reply to H. G. Muller from 07:09 AM:

Dear all, HG, yes I feel the same need. I hope you will be able to implement these features. Many thanks to all editors.


Maasai Chess. Large CV with 48 pieces per side, of 20 types including both regular and rapid Pawns.[All Comments] [Add Comment or Rating]
💡📝Jean-Louis Cazaux wrote on Fri, May 7, 2021 06:28 AM UTC in reply to H. G. Muller from Thu May 6 09:48 PM:

It seems to me that the black player who chooses the setup has an advantage to his white opponent who doesn't know what will be the setup. It is true that the black player may know an opening theory for his favorite setup but as they are a lot of possible setups, one would have to know a lot of opening theories which is reducing the impact in my opinion.


💡📝Jean-Louis Cazaux wrote on Fri, May 7, 2021 06:37 AM UTC:

I am confused. Yesterday I created a new page for a new entry called "Maasai Chess". This page is now waiting for approval by editors. This is not the problem.

After, I wanted to create a new Game Courier preset to play this Maasai Chess. Then, I follow the link to create a new GC preset. But at the end, the process gives a similar template than for a normal page entry. This is confusing.

So, I started from an existing GC preset of my own, I modified it, I renamed it "Maasai Chess", I saved it and I spent my evening working on it. This morning, I wanted to come back on it and continue ... but I can't find it. Where is it?

When I look under my name to my unpublished submissions, I see the normal page for "Maasai Chess" but for the GC preset I just see the void page I had made, and not the file I had worked on yesterday.

May someone help me?


💡📝Jean-Louis Cazaux wrote on Fri, May 7, 2021 09:48 AM UTC in reply to H. G. Muller from 07:16 AM:

Seriously, nobody will study the opening theories for my games. If few are just playing, I'll be happy. I still believe that if they are many setups, the impact of learn-by-heart openings will be less important. I like the idea of one player choosing the setup and the opponent making the first move. I understand that other people may like other ideas, no problem.


💡📝Jean-Louis Cazaux wrote on Fri, May 7, 2021 05:42 PM UTC in reply to Fergus Duniho from 01:15 PM:

.. Game Courier preset, ... Game Courier setting file, multiple presets, indexed link page, so complicated for someone like me to understand what I'm doing. You guys are pure genius.


💡📝Jean-Louis Cazaux wrote on Sat, May 8, 2021 07:39 AM UTC in reply to Fergus Duniho from Fri May 7 05:44 PM:

Thanks a lot


Maasai Chess. Play Maasai Chess with Game Courier.[All Comments] [Add Comment or Rating]
💡📝Jean-Louis Cazaux wrote on Tue, May 11, 2021 09:12 PM UTC:

I wish I could use the Alfaerie icon for the Sergeant for the Maasai on ranks 3 instead of the one I used instead but I don't know how to do it.


Home page of The Chess Variant Pages. Homepage of The Chess Variant Pages.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Fri, May 14, 2021 07:41 PM UTC in reply to digital sedition from 03:32 PM:

This game was once considered to be included in the book "A World of Chess". When you say that it has been adopted as the official chess of Vietnam, what source or element do you have to support this statement? I am interested to know.


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