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Comments by j_carrillo_vii

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Game Courier Logs. View the logs of games played on Game Courier.[All Comments] [Add Comment or Rating]
j_carrillo_vii wrote on Thu, Jun 3, 2004 07:32 AM UTC:
Is there a way that you can sort this view, to only show the games that a particular player is playing? (i.e. one's games) or for a specific variant only?

Janggi - 장기 - Korean Chess. The variant of chess played in Korea. (9x10, Cells: 90) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Thu, Jun 3, 2004 07:52 AM UTC:Excellent ★★★★★
Fergus,

Thanks! I can't wait to play Korean Chess in Game Courier!

As an option for the game pieces, maybe you can use the same Chinese
characters you are using for Chinese Chess, but inside octagons, instead
of circles.

Jose

Jose Carrillo wrote on Fri, Jun 4, 2004 10:57 PM UTC:
Fergus,

What I meant to say was, use the Chinese characters as an option for the
Piece Set that the players are allowed to use.

For example, I don't have a Korean Chess set, but use a Chinese Chess set
when I play Korean Chess over the board with my friends. We ignore that the
river is there and voila!

If I had the Piece Set choice, I definitely use the Chinese Chess set, as
it was hard enough for me to learn the Chinese Characters in the first
place (I'm Spanish). My oponents could choose to display the Korean
characters, and I would use the Chinese, but we could still play each
other and enjoy a game right away.

Of course, if there is no choice, I would learn the Korean characters as
well.

You could also give as another choice the westernized characters in your
Korean Chess rules webpage, for those that do not know Korean or Chinese
characters, and want to try out Korean Chess. This way I'm sure you would
get a lot more westerner players to enjoy the game.

It was just a suggestion.

Jose

Mortal Shogi ZRFs ZIP file. Play Shogi and a couple variants with diminishing pieces.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, Jun 13, 2004 07:30 PM UTC:
I too had problems with the ZIP file. I downloaded it several times, and could not open the game. At least the files ShogiBrd.bmp and King.bmp in the flip directory show just a black screen on the downloaded file. Can someone email me a good ZIP file to j_carrillo_vii@yahoo.com? Thanks.

Game Courier User's Guide. How to play games with the CV Play-by-Mail system.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, Jan 29, 2005 05:23 PM UTC:
My opponent is offering a draw. 

How does he register a draw offer in Game Courier? 
How does one accept a draw offer?
Is there a draw command?

Chess Variant Construction Set. Putting together a set of materials for playing several different Chess variants.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Wed, Feb 13, 2008 04:33 PM UTC:
Another option to get board segments is to buy the Taurus 4-player Chess board. You get an 8x8 (64 squares) plus 4 segments of 8x3 (24 squares) for a total of 160 squares. For $9.95 per board, you can't go wrong.

http://hometown.aol.com/taurusgaming/myhomepage/index.html

Chancellor Chess. On a 9 by 9 or 9 by 8 board with a piece with combined rook and knight moves. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Wed, Feb 13, 2008 07:05 PM UTC:
What's the correct link for the Chancellor Chess preset for Game Courrier?

I found the Chancellor game log below:
http://play.chessvariants.org/pbm/play.php?game=Chancellor+Chess&log=judgmentality-cvgameroom-2006-86-980

but I can't find the preset link in Game Courier to start a new game.

The link is also not on the alphabetic index of presets.

Modern Chess. Variant on a 9 by 9 board with piece that combines bishop and knight moves. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Wed, Feb 13, 2008 07:10 PM UTC:
Just created a new preset for Modern Chess:
http://play.chessvariants.org/pbm/play.php?game%3DModern+Chess%26settings%3DModern+Chess

I just discovered this variation in Puerto Rico while on vacation there when I played chess with some friends at a park in Manati.

Fischer Random Chess. Play Bobby Fischer's randomized Chess variant on Game Courier. (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Wed, Feb 13, 2008 08:50 PM UTC:
A better logic in the pre-game of the preset to give an equal chance to all 960 FRC positions is this:

drop B any a1 c1 e1 g1;
drop B any b1 d1 f1 h1;
drop Q any a1 b1 c1 d1 e1 f1 g1 h1;
drop N any a1 b1 c1 d1 e1 f1 g1 h1;
drop N any a1 b1 c1 d1 e1 f1 g1 h1;
drop R left a1 b1 c1 d1 e1 f1 g1;
drop R right b1 c1 d1 e1 f1 g1 h1;
drop K all a1 b1 c1 d1 e1 f1 g1 h1;

Modern Chess. Variant on a 9 by 9 board with piece that combines bishop and knight moves. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, Feb 17, 2008 04:33 PM UTC:
>> Is there any provision in Modern Chess allowing the Bishops to 
>> Change to opposite Diagonals?

Yes there is.

There is a 'Bishop-Castling' or 'Bishop Adjustment' rule.

For only ONE of the bishops, you can 'castle' (switch positions) with either the Knight, Queen or Minister next to it, therefore moving that Bishop to the white squares.

The Bishop in question must have not moved before 'castling', and the Knight, Queen or Minister to 'castle' with must have not moved either.

I'm trying to get a copy of the original book from Gabriel Maura from a friend in Puerto Rico, to formalize the rules, and request an update to the rules page in Chess Variants.

Haven't heard of the Bishop's one square ortogonal move in Modern Chess, but will ask for the clarification.

Game Courier. PHP script for playing Chess variants online.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, Feb 17, 2008 04:57 PM UTC:
I created a new preset for Modern Chess:
http://play.chessvariants.org/pbm/play.php?game%3DModern+Chess%26settings%3DModern+Chess

I just discovered this variation in play in Puerto Rico while on vacation there when I played chess with some friends at a park in Manati.

Gabriel Maura invented Modern Chess in 1968, and it was last played in tournaments in 1983.

I'm looking for player to try it out. If you are interested, please send me an email. Thanks.

Modern Chess. Variant on a 9 by 9 board with piece that combines bishop and knight moves. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Thu, Feb 21, 2008 08:10 PM UTC:
Here is the move coding for Game Courier for Modern Chess' Bishop-Adjustment (or 'Bishop Castling'): c-Bishop Adjustment with Knight: White: B-b1;N-c1 // [Bc<=>N (c-Bishop-Knight adjustment)] Black: b-b9;n-c9 // [Bc<=>N (c-Bishop-Knight adjustment)] c-Bishop Adjustment: White (with Minister): B-d1;M-c1 // [Bc<=>M (Bishop-Minister adjustment)] Black (with Queen) : b-d9;q-c9 // [Bc<=>Q (Bishop-Queen adjustment)] g-Bishop Adjustment with Knight: White: B-h1;N-g1 // [Bg<=>N (g-Bishop-Knight adjustment)] Black: b-h9;n-g9 // [Bg<=>N (g-Bishop-Knight adjustment)] g-Bishop Adjustment: White (with Queen) : B-f1;Q-g1 // [Bg<=>Q (Bishop-Queen adjustment)] Black (with Minister): b-f9;m-g9 // [Bg<=>M (Bishop-Minister adjustment)] Neither piece swapping places may have moved before the 'Bishop Adjustment' (or 'Bishop Castling')

Bishops Conversion Rule. Rule for variant where bishops start on equal colored squares, with sample games.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Fri, Feb 22, 2008 12:34 PM UTC:
Maura's Modern Chess already has a solution for the 'Bishop Conversion' to the light squares.

Modern Chess has the 'Bishop Castling' rule, where one, and only one, of the Bishops is allowed to swap places with the Knight, Queen or Minister adjacent to it.

Neither of the pieces involved in the 'Bishop Castling' must have moved before, and the move is optional.

Unlike Carlos Cetina's Bishop Conversion Rule, which mandates one of the Bishops to convert to the light squares; Maura's Bishop Castling is just an option.

If a player is confortable playing with 2 Bishops on the dark squares, he may choose to do so. But he may end up playing against a formation that has Bishops on both light and dark squares.

Chess Variant Pages Membership. Missing description[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Fri, Feb 22, 2008 10:34 PM UTC:
Is Chess Variants not been able to send emails anymore?

I'm tyring to get a friend subscribed to CV to play a game of Modern Chess, but the email with his password has never arrived.

His id is: pleyades21

I notice that I'm not getting an email advice when my opponents make their moves. Is there a problem?

Who can help me?

Jose Carrillo wrote on Sun, Feb 24, 2008 02:00 PM UTC:
Thanks Joe.

We can work around for checking our turn to move.

But how about new memberships?

Can someone reset the password of my friend pleyades21 so that he can start playing in CV?

Game Courier Logs. View the logs of games played on Game Courier.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Wed, Feb 27, 2008 01:28 AM UTC:Excellent ★★★★★
Can someone edit the link on the page for Modern Chess to list the 'Game
Courier Logs for Games of Modern chess'?

Currently this link points to:
http://play.chessvariants.org/pbmlogs/index.php?age=0&stat=any&gamewcp=Modern+chess

and displays no games in progress.

The right link should be:
http://play.chessvariants.org/pbmlogs/index.php?age=0&stat=any&gamewcp=Modern+Chess

with a Capital C for Chess (the search is case sensitive).

[Done! -Eds]

Thanks!!!

Jose Carrillo wrote on Thu, Feb 28, 2008 09:26 PM UTC:Excellent ★★★★★
The email systems is working again! I received a move notification today!

Great!!! Thanks!

CHESS Eccentricities, By Major George Hope Verney. Images from the book (complete).[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Thu, Feb 28, 2008 09:32 PM UTC:Excellent ★★★★★
An excellent gift indeed! Great job! Thanks!

About Game Courier. Web-based system for playing many different variants by email or in real-time.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Thu, Feb 28, 2008 10:26 PM UTC:
I just created the preset for Advanced Chess:
http://play.chessvariants.org/pbm/play.php?game%3DAdvanced+Chess%26settings%3DAdvanced+Chess

Anyone interested in playing a game?

PBMWaitingRoom[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Thu, Feb 28, 2008 10:37 PM UTC:
Just a suggestion. 

The Game column in the waiting room should link to the CV game page for reference to the game instructions to those not familiar with the variants open for challenges.

Modern Chess. Variant on a 9 by 9 board with piece that combines bishop and knight moves. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Wed, Mar 5, 2008 04:26 PM UTC:Excellent ★★★★★
Excellent Antoine! Thanks!

Does it enforce that only one Bishop can castle per side?

Jose Carrillo wrote on Wed, Mar 12, 2008 12:59 AM UTC:Excellent ★★★★★
Thanks Antoine.

= = =

I just received today in the mail an original Spanish copy of Gabriel Vicente Maura's 1973 3rd edition 'Mathematical Thesis for Modern Chess including the Prime Minister'!!!

I found it in a Library of Antique Books in Madrid, Spain.

Nice little book (it's only 48 pages long).

It has Gabriel Vicente Maura's 'mathematical' explanation of why the chess board needed to be increased in size to 9x9, why a new powerful piece needed to be added to the game, and why that piece needed to be a Prime Minister (Bishop + Knight).

Interesting 'mathematical' theory.

I'll digest it first, and post a summary of his theory.

Jose Carrillo wrote on Sun, Mar 16, 2008 02:34 PM UTC:
BTW. The book confirms the Bishop Castling rule as I've described before. 

The rule is actually called the 'Bishop Adjustment' rule.

In the true nature of Modern Chess, Maura believed the game was better to be played with both Bishops on the dark squares.

But he left the possibility open for players that couldn't let go (of having Bishops in opposite colors).

Jose Carrillo wrote on Sat, Mar 22, 2008 03:34 PM UTC:
I'm working on the code for two new presets for Chess Courier for randomized variants for Modern Chess:

Modern Random Chess and Modern Fischer Random Chess

I'm trying to reuse some of the code already done for Fischer Random Chess, and found a statement that is too specific in the fischer.txt include file, that prevents this include file to be general enough to be used for 9x9 variants.

In the subroutine to evaluate actual moves by the Black Rook, in the elseif statement there is a reference to a physical coordinate (f8), rather than to a label (#roo):

sub r from to;
  set legal fn R #from #to;
  if not var legal or == old k:
    if == #to #rooo:
      castle #k #kooo #from #rooo;
      set k #kooo;
    elseif == #to f8:
      castle #k #koo #from #roo;
      set k #koo;
    endif;
  endif;
  unsetflag #from;
endsub;

The same is not the case for the subroutine for evaluating actual moves by the White Rook:

sub R from to;
  set legal fn R #from #to;
  if not var legal or == old K:
    if == #to #ROOO:
      castle #K #KOOO #from #ROOO;
      set K #KOOO;
    elseif == #to #ROO:
      castle #K #KOO #from #ROO;
      set K #KOO;
    endif;
  endif;
  unsetflag #from;
endsub;

Here the elseif has a #ROO label that allows this subroutine to be general enough to work for a 9x9 chess variant.

Can someone update the subroutine for black in fischer.txt to have the label #roo instead of f8?

Second question, how do I upload a new file into the include library?

I'm working on the code for a new modern-adjustment.txt file that will be general enough to provide for my new Bishop Adjustment in the randomized versions I'm working on, as well as for the Bishop Commuting found in the modern.txt include file.

Thanks.

Jose Carrillo wrote on Mon, Mar 24, 2008 06:24 PM UTC:
Thanks Antoine!

Can you update the Modern Chess webpage to include the 'Bishop's Adjustment' rule?

http://www.chessvariants.org/large.dir/modern.html

Below is my English interpretation of the rule, which appears in Spanish on page 32 of Gabriel Maura's 1973 'Tesis Matematica del Ajedrez Moderno' (Mathematical Thesis for Modern Chess):

==

The Bishop Adjustment Rule

It consists in exchanging the square of one of the Bishops with either of the adjacent major pieces - the Queen or the Queen's Knight on the right, or the Minister or Minister's Knight to the left - as long as neither of the pieces being exchanged has been moved from its original square.

The player would have four ways to do the adjustment, but he is only allowed to do it one time throughout the game, if he wishes to. This adjustment counts as a move, just like castling. The notation for it is: B=MN (example for the adjustment with the Minister's Knight).

Jose Carrillo wrote on Sun, Apr 6, 2008 11:58 AM UTC:
Thanks for updating the Modern Chess page with the Bishop Adjustment rule.

I found two typos.

1. The notation for the Bishop and Minister's Knight example is actually
B=MN (I made a mistake before with B=MK).

2. The international organization created that arranged tournaments and
world championships for Modern Chess was FEMDAM. (not FENDAM as Pritchard
incorrently quotes in his book).

FEMDAM = FEderacion Mundial De Ajedrez Moderno

which is Spanish for 'World Federation of Modern Chess'

Can someone please update the two typos in the Modern Chess page? 

http://www.chessvariants.org/large.dir/modern.html

[All fixed, I think. DH] [Yes. Thanks. JC]

Jose Carrillo wrote on Mon, Apr 28, 2008 02:19 AM UTC:
Can one of the admins for the site update the links at 

http://www.chessvariants.org/index/mainquery.php?type=Any&startswithletter=M&orderby=LinkText&displayauthor=1&displayinventor=1

to include a link to the Modern Chess preset for Game Courier?

The Modern Chess preset's link is:
http://play.chessvariants.org/pbm/play.php?game%3DModern+Chess%26settings%3DAlfaerie

The 'See Also' page for Modern Chess:

http://www.chessvariants.org/index/displayitem.php?itemid=Modernchess

needs also to be updated with the link to the Chess Courier preset above.

Thanks in advance.

Feedback to the Chess Variant Pages - How to contactus. Including information on editors and associate authors of the website.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, May 10, 2008 12:32 PM UTC:
How does one become a Contributor to Chess Variants?

I have a new Bishop Adjustment Rule that I want to publish (next to Carlos Cetina's BCR rule), and I have 3 news variants that I've created that I also want to publish.

Jose Carrillo wrote on Sat, May 10, 2008 07:32 PM UTC:
Thanks David.

I did my first contributions, the Modern Random Chess variant:

http://www.chessvariants.org/index/msdisplay.php?itemid=MSmodernrandomch

and the new Bishop Adjustment Rule:

http://www.chessvariants.org/index/msdisplay.php?itemid=MSthebishopadjus

Modern Chess. Variant on a 9 by 9 board with piece that combines bishop and knight moves. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, May 11, 2008 01:44 PM UTC:
I have developed a more generic Bishop Adjustment Rule for the new Modern Random Chess variation.

My new Bishop Adjustment Rule also applies to Modern Chess:
http://www.chessvariants.org/index/msdisplay.php?itemid=MSthebishopadjus

Feedback to the Chess Variant Pages - How to contactus. Including information on editors and associate authors of the website.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, May 11, 2008 01:59 PM UTC:
Admins,

Can someone please update the Query page on 'M' items below:
http://www.chessvariants.org/index/mainquery.php?type=Any&startswithletter=M&orderby=LinkText&displayauthor=1&displayinventor=1

to include the Modern Random Chess Game Courier preset:
http://play.chessvariants.org/pbm/play.php?game%3DModern+Random+Chess%26settings%3DMRC

Thanks.

Jose Carrillo wrote on Mon, May 12, 2008 11:57 PM UTC:
Hi Admins,

A corrections for the What's New Page:
http://www.chessvariants.org/index/whatsnew.php

For the week ending May 14, 2008 there are two Game Courier Presets entries for Modern Random Chess.

The one that says Author Jose Carrillo, Inventor Gabriel Maura, is actually for Modern Chess (not Modern Random Chess). The other one is OK.

A request: for the informational page for MRC64, can you add the text description 'Modern Random Chess 64' next to the link? (just like it was done for the MRC64 Game Courier Preset entry).

Thanks.

Capablanca's chess. An enlarged chess variant, proposed by Capablanca. (10x8, Cells: 80) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, May 18, 2008 01:44 PM UTC:
Hi H.G.

Here is another 10x8 variant option for your engines, a random setup with the Four 'Modern' Chess Principles:

Modern Capablanca Random Chess preset

There are 151,200 possible starting positions!

The Four 'Modern' Chess Principles are:
  • The option of having both Bishops start up on squares of the same color
  • Reverse Symmetry
  • Symmetric Castling to either side (Players must agree before the game which type of castling [short or long] will they use in the game)
      In a 10x8 setup castling can be either short (O-O) or long (O-O-O), but not both:
    • O-Ob is Kb1 & Rc1 [Kb8 & Rc8 for black]; or O-Oi which is Ki1 & Rh1 [Ki8 & Rh8 for black]
    • O-O-Oc is Kc1 & Rd1 [Kc8 & Rd8 for black]; or O-O-Oh which is Kh1 & Rg1 [Kh8 & Rg8 for black]
  • The Bishop Adjustment Rule giving players the choice (if they want) to change one of the Bishops to the opposite color squares in those setups where the Bishops start off on the same color.

Here is a sample preset for 'Modern Capablanca Random Chess'.

PS-I submited the comment below on the subject of the Four Modern Chess Principles. The comment below can be deleted.

Mastodon Chess (8x10). Standard pieces plus two Mastodons per side. A strategical big-board variant.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Mon, May 19, 2008 11:35 AM UTC:
Why is the setup of the Knights and Bishops different from White to Black?

White has both Knights next to the King and Queen, Black doesn't.

This position is not symmetrical. 

Is there not a one sided advantage with this setup?

Capablanca's chess. An enlarged chess variant, proposed by Capablanca. (10x8, Cells: 80) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Thu, May 22, 2008 12:13 AM UTC:
On 2008-05-21 H. G. Muller said:
>Well, I do not really play CVs myself, but I love to watch games played by
>my engines, especially blitz games. And from this I learned that
>Knightmate is a CV that definitely works. It is just different enough from
>FIDE Chess to make it interesting, but familiar enough that you immediately
>can grasp it. Great game!
>
>Similarly for the 10x8 Capablanca variants. They are very interesting
>because of the Archbishop, which tends to be very active.

H.G.

Have you tried the Modern Capablanca Random Chess viariant with your engines?

Jose Carrillo wrote on Fri, May 23, 2008 12:58 AM UTC:
H.G.

Thanks for your feedback.

Don't neccessarily agree with it, but I apreciate it.

10x8 Variants. Missing description[All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Wed, May 28, 2008 11:55 PM UTC:
Thanks Sam for the link to the different setups. It's a good reference.

My Modern Capablanca Random Chess allows all 151,200 possible Capa setups (those that still allow castling), including those with Bishops starting on the same color.

Chaturanga. The first known variant of chess. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Tue, Jun 10, 2008 07:07 AM UTC:
Anyone interested in a game of Chaturanga?

This preset has regular pieces:
http://play.chessvariants.org/pbm/play.php?game%3DChaturanga%26settings%3DAlfaerie

The Emperor's Game. Variant on 10 by 10 board from 19th century Germany. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, Jun 15, 2008 03:28 PM UTC:
The Emperors Game is one of the original variants to display some of the 'Modern' principles: Reverse Symmetry and symmetric castling to either flank of the board.

Fianchetto Chess. Bishops and Rooks exchange starting squares.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, Jun 15, 2008 03:42 PM UTC:
This is the same as Fischer Random Chess' position number 323.

http://frcec.chess960.info/FRC-StartingPositions/Positions_320-399.jpg

Pawn (Xiangqi). Moves and captures one square straight forward.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, Jun 21, 2008 12:25 PM UTC:
Not sure what you mean by extra move.

When the pawn crosses the river, it gains the ability to move and capture sideways.

It still can't go backwards.

Symmetric Sissa problem. Problem based on an actual game.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Mon, Jun 30, 2008 04:51 PM UTC:Excellent ★★★★★
Solution:

1. ... Sg3+ (c5-e3-g3 / g3-h2-h1)

The White King is in check, and only has 2 moves Ki1 and Kh1 [the g1 square is under attack by the g-Sissa (g3-e1-g1)]


2.Ki1 Sfxi2# (f8-i5-i2 / i2-h2-i1)

The i-Sissa checks on i1, and attacks h2 (i2-i1-h2); the g-Sissa protects the i-Sissa (g3-h2-i2) and attacks h1 (g3-h2-h1); mate!

or if:

2. Kh2 Sfxi2# (f8-i5-i2 / i2-h1-h2)

The King is in check by the i-Sissa, and he can't take either of the Sissas with the King as he would be in check by the other Sissa 'after!' the capture (note that the Sissas do not have a path to protect each other until the King moves out of h2, which it can't as he would be in check).

The Sissas attack all the possible squares for the white King:

g3 -> i-Sissa (i2-h2[once the King moves]-g3) -> This path protects the other Sissa
i2 -> g-Sissa (g3-h2[once the King moves]-i2) -> This path protects the other Sissa
i3 -> g-Sissa (g3-i5-i3)
g1 -> g-Sissa (g3-e1-g1)
h1 -> g-Sissa (g3-h2[once the King moves]-h1)
i1 -> i-Sissa (i2-h1-i1)

Reverse Symmetry. Missing description[All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Mon, Jun 30, 2008 07:18 PM UTC:
Thanks for the info on Mir Chess 32 and Midgard Chess.

I'll add them to the list of games with reverse symmetry.

Makruk (Thai chess). Rules and information. (8x8, Cells: 64) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Tue, Jul 1, 2008 12:46 AM UTC:
I found this link on Thai Chess:
http://www.thailandlife.com/thaichess/

which explains the rules of the game, including the rule about how many moves does a player have to checkmate a lonely King before a forced draw.

pbmMakruk[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Thu, Jul 3, 2008 01:55 AM UTC:
I was also looking to play a game.

Here is a new preset I just created:
http://play.chessvariants.org/pbm/play.php?game%3DMakruk+%28Thai+chess%29%26settings%3DAlfaerie

Makruk (Thai chess). Rules and information. (8x8, Cells: 64) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Thu, Jul 3, 2008 02:21 AM UTC:
I am looking to play a game of Makruk.

Here is a new preset I just created:
http://play.chessvariants.org/pbm/play.php?game%3DMakruk+%28Thai+chess%29%26settings%3DAlfaerie

Anyone interested?

Jose Carrillo wrote on Thu, Jul 3, 2008 09:48 AM UTC:
No problem. I'll change it.

I found a piece with 5 dots in the direction of movement of the Thai Bishop (I think it may be a wizard?).



What's the graphic for a Silver?

Give me a game that currently uses it so that I can see it and change it again.

[Subject Thread] [Add Response]
Jose Carrillo wrote on Sun, Jul 13, 2008 03:40 PM UTC:
I got a supplier and placed an order for 200 vynil 10x10 boards, and will be ready to distribute them soon.

More details later on...

English Random Chess. Standard chessmen on a 10x10 board, with randomized piece setup. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Wed, Jul 30, 2008 11:11 AM UTC:
I've created a new English Random Chess preset which provides automatically the random positions for both sides:
http://play.chessvariants.org/pbm/play.php?game%3DEnglish+Random+Chess%26settings%3DAlfaerie

j_carrillo_vii wrote on Tue, Aug 12, 2008 01:42 AM UTC:
English Random chess could benefit from the Bishop Adjustment rule for
those positions with Bishops in same color squares:
http://www.chessvariants.org/index/msdisplay.php?itemid=MSthebishopadjus

A Western Xiangqi Board. Proposal to play Xiangqi on a `westernized' board.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, Aug 16, 2008 09:20 PM UTC:
Great idea! (for us westeners anyway)

Below is my actual rendition of this idea:



For the palace and the river, I'm using vynil strips (cut from a placemat), Seirawan Elephants for the Chinese Elephants, Orthodox Bishops as the Guards, and homemade Cannons.



For the Cannons I used drilled beheaded Rooks (I used the Rook tops to glue on Knights to make Chancellors).

Jose Carrillo wrote on Wed, Aug 20, 2008 01:20 AM UTC:
Rich,

I'll respond to your comments in the opposite order.

>> 2. I personally would rather not have a big X through the forts on the board.

The X's are actually 4 strips of vynil, and are just laid on top of the board in the shape of the X's, and are not glued or otherwise permanently stuck on the board.

>> 1. I believe Seirawan and Harper forbid their pieces being used for any other purposes but Seirawan chess.

I'll let the other comments in progress address this. They have hit the mark and are on the right track.

Janggi - 장기 - Korean Chess. The variant of chess played in Korea. (9x10, Cells: 90) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Wed, Sep 3, 2008 12:53 PM UTC:
My 'Western' rendition of a Changgi board.



Inspired by:
A Western Xiangqi Board

Courier Chess. A large historic variant from Medieval Europe. (12x8, Cells: 96) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, Dec 20, 2008 08:29 PM UTC:
New Game Courier Preset for 'Courier Chess':
http://play.chessvariants.org/pbm/play.php?game%3DCourier+Chess%26settings%3DAlfaerie

Jose Carrillo wrote on Sat, Dec 20, 2008 09:39 PM UTC:Excellent ★★★★★


I love H. G. Muller's missing link theory! Actually makes sense! Even if it's not the case, makes for a nice little story to tell about this game.

This story goes well with the 1508 painting.

Jose Carrillo wrote on Mon, Dec 22, 2008 12:31 AM UTC:
H.G. Muller,

I so much liked your 'missing link' theory that I quoted it in my Courier Chess Moderno CV page on my latest variation of Courier Chess.

Hope you don't mind.

Courier Chess Moderno. A modern variant of the historical variant Courier Chess. (12x8, Cells: 96) [All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Sun, Dec 28, 2008 03:02 PM UTC:
I admit the queen and schleich are weak pieces, specially the schleich. I played a OTB game and ended up with two queens (on the same color) and a schleich versus a lonely king, and wasn't able to force a mate, so I had to agree to a draw. But that was before I adopted the 'Bare King' rule, which would mean that even the two queens and schleich ending would be a win.

I play a lot of Makruk (Thai Chess) so I know how to mate with three queens (one of opposite color) and I find that ending quite enjoyable. I'm not too crazy about the schleich, but replacing it with another Man would be replacing it with a too powerful piece, plus in my view, it would take away the 'flavour' of Courier Chess.

While slow, the Schleich can actually reach all 96 squares on the board (something a Queen can't do), and the Schleich can be used as a defensive piece protecting any piece horizontally or vertically next to it.

From playing practice it appears that the Man and the new Elephant are similar in power with the Bishop (Courier), so now you have four pieces that can be exchanged between them (Bishop for Knight, for Elephant or for Man; Knight for Elephant or Man; Elephant for Man) and still keep a balanced and interesting game. I don't intend to remove the original queen; and I will keep the schleich for another while, the jury is still out.

The Bishop Adjustment rule is intended for variants where the Bishops start up on the same color, which is not the case (so far) for Courier Chess and it's variants.

Thanks for your feedback.

Courier Chess. A large historic variant from Medieval Europe. (12x8, Cells: 96) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, Dec 28, 2008 03:26 PM UTC:
I also want to add to Muller's theory that Courier Chess' initial forced 2-step pawn moves might have inspired the same move for all the pawns in Orthodox Chess.


Courier Chess Moderno. A modern variant of the historical variant Courier Chess. (12x8, Cells: 96) [All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Mon, Dec 29, 2008 02:25 AM UTC:
I didn't understand from your previous comment that you were suggesting reducing the board size to 11x8.

Looks like an interesting option.

Thanks for the idea.

💡📝Jose Carrillo wrote on Mon, Dec 29, 2008 03:53 PM UTC:
Yes, I easily won a KMK ending. But traveled all over the board with the KWFFK ending (both F on the same color), I could not find the mate sequence in the time left on the clock, so agreed to a draw. I'll try it again now without the time pressure to prepare myself for the next time I find myself in that situation.

💡📝Jose Carrillo wrote on Mon, Dec 29, 2008 04:49 PM UTC:
Agreed. My exposure to Makruk has helped me find a newfound love for the tiny limited old queens (Ferz).

My original intention for Courier Chess Moderno was to create a variant that still had a Courier Chess flavour, and I feel that adding the modern powerful queen to the game is a step too drastic.

I must admit, the OTB Courier Chess Moderno games I played were quite exciting and interesting without the powerful queen. Try it out!

I'm working on a couple Mini Courier Chess Moderno ideas, where I'm getting rid of the Ferz and the Wazir, shrinking the board, and still utilizing my new Elephant, which counteracts very well the colorbound Bishops (Couriers).

I will also experiment with your 11x8 board suggestion with the Bishop's Adjustment rule, although I fear that the odd shape 11x8 board might hinder the popularity of such a variant.

💡📝Jose Carrillo wrote on Mon, Dec 29, 2008 05:15 PM UTC:
I do not need a 'Queen' adjustment rule in Courier Chess Moderno.

The Queens already start off in the same color squares, thanks to the Reverse Symmetry.

Any new Queens on the board will get their colored square based on the luck of their pawn promotions.

The next improvement I see for the Queen is to get the moves of the Man or Commoner in a smaller board. That's what I'm trying in my Mini Courier tests in progress.

💡📝Jose Carrillo wrote on Mon, Dec 29, 2008 06:08 PM UTC:
Great David! Thanks!

Where do I find Dave McCooey's work? Is there a web link? or is it in a book?

Edit - I found it!

Although this work is statistical only. I'll still have to figure out the pattern and play out the mate.

💡📝Jose Carrillo wrote on Mon, Dec 29, 2008 06:30 PM UTC:
Then could you not apply the same logic to Modern Chess Bishops?

No. The Modern Chess board is 9x9, and already has Reverse Symmery. Even without the Reverse Symmetry, the Bishops would end up on the same color.

If you want to continue discussing Modern Chess or the Bishop Adjustment Rule lets do it here (for Modern Chess) or here (for Bishop Adjustment).

Thanks.

Sorry if I'm seeming argumentative.

Not at all. Friendly dialogue is always healthy.

...since you seem to like weak pieces

Not at all again (I quite like the strong Prime Minister [Bishop+Knight]). I just don't want to stray away too much in this variant from the Courier Chess flavour.

💡📝Jose Carrillo wrote on Tue, Dec 30, 2008 04:05 AM UTC:
I setup the following Courier Chess position in Zillions of Games with a King, Schleich and two Queens on the same color squares versus King, and was able to mate in 34 moves! The secret was to keep the Schleich on the 2nd row of the corner where I was going to mate Black's lonely King, and to push Black's King over to the corner pretty much with my White King.


1.Qd2 Kg7 2.Kg2 Kf6 3.Kf3 Ke5 4.Sh2 Kf6 5.Kg4 Ke5 6.Kg5 Ke4 7.Qf2 Kd3 8.Qfe3 Ke4 9.Kg4 Kd3 10.Kf4 Kc4 11.Ke4 Kb5 12.Kd5 Kb4 13.Sg2 Ka4 14.Kc5 Kb3 15.Sf2 Ka4 16.Qc3 Kb3 17.Qed4 Ka4 18.Se2 Ka5 19.Sd2 Ka6 20.Kc6 Ka5 21.Qc5 Ka4 22.Kb6 Kb3 23.Q5d4 Ka4 24.Ka6 Ka3 25.Ka5 Kb3 26.Kb5 Ka3 27.Qc5 Kb3 28.Q5b4 Ka2 29.Kc4 Kb1 30.Kb3 Kc1 31.Qa3 Kb1 32.Sc2 Ka1 33.Qcb2+ Kb1 34.Sc1# mate!

I'm now ready next time I find this endgame!

Modern Makruk. A fusion of Modern Chess and Makruk.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Wed, Dec 31, 2008 03:42 PM UTC:Good ★★★★
Feel free to use any of the JPGs in my pages below in your page to describe the movement of the pieces:
http://www.chessvariants.org/index/msdisplay.php?itemid=MStheprimeminist
http://www.chessvariants.org/index/msdisplay.php?itemid=MPmakruk(thaiche

I've added a link to your game in my page on the Prime Minister.

Modern Chess. Variant on a 9 by 9 board with piece that combines bishop and knight moves. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, Jan 10, 2009 06:30 PM UTC:
Hi Simon!

I'll try to answer your questions:

>> 1. Are there any websites dedicated to Modern Chess...

No, other than here at Chess Variants, I do not know of any othe websites dedicated to Modern Chess.

>> I mean do people actually play it?

Yes, still in Puerto Rico (where the game was invented in 1968), but not as much anymore.

You can't find Original (brand new) Modern Chess sets anymore.



I got this original (used) Modern Chess set last year while visiting Puerto Rico.

>> 2. It's tempting but I don't like the Bishop adjustment thingy.

It's the only kind of obscure rule, but it was the creator's way of solving the problem of Bishops starting on the same color (which the creator actually didn't see as a problem).

>> Unless perhaps, would giving the Bishop the option to utilise one opportunity per game to move one square in any direction be good?

I guess one can use it as an option or alternative to the original rule. It must agreed before the start of the game to use this variation of the rule.

>> 3. Is it one sided playing an odd number of squares? Does Black or White have a distinct advantage on a 9 x 9 square board?

No. There is no advantage for either player, other than for white having the first move (just like in Orthodox Chess).

>> 4. Where can I buy a 9 x 9 board?

You can try:

Ministers Chess (9x9) at http://www.corinthiangames.com/

or

International Chess Variants Board (10x10, and you make it smaller) at http://www.modern.chess.variants.tripod.com/

In Europe you should be able to get other 10x10 International (Polish) Checkers (draughts) boards, which you can customize to 9x9, and use your chess pieces from a couple of Orthodox Chess Sets.

I also found last year a copy of the Spanish version of the game inventor's book in a library of rare books in Spain.


Jose Carrillo wrote on Sat, Jan 10, 2009 07:09 PM UTC:
John,

>>White has the advantage of a more quickly promoting centre Pawn but it is balanced somewhat by the reverse symmetry.

White has no advantage other than the first move, just like in Orthodox Chess. Not sure where you get that the reverse symmetry somewhat balances the 'more quickly promoting centre pawn' theory of yours.

>> The imbalance between the colours, both in terms of the board and the armies, makes the game ugly,

What imbalance of armies are you talking about?

>> as does the Bishop Adjustment Rule.

Won't argue this one. There had to be a way (perhaps ugly) to solve the problem of the initial Bishops on the same color squares.

Modern Makruk. A fusion of Modern Chess and Makruk.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, Jan 10, 2009 07:37 PM UTC:


This is the final position of that first game. It lasted 19 moves.


Jose Carrillo wrote on Sun, Jan 11, 2009 03:01 AM UTC:
Thanks David. I didn't know that one.

Game Courier Logs. View the logs of games played on Game Courier.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Thu, Jun 25, 2009 02:28 AM UTC:
[comment deleted]

Chaturanga for four players.. Oldest multiplayer chess variant. (8x8, Cells: 64) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Mon, Jun 29, 2009 12:04 PM UTC:
I've created a 4-player Chaturanga variation (with two 6-side dice) which is simpler to play, and has proved to be a lot of fun for my wife (a non chess player) and my two young kids (7 & 5 years old).

Partnership Chaturanga:
http://www.chessvariants.org/index/msdisplay.php?itemid=MSpartnershipcha

Reverse Symmetry. Missing description[All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Sun, Jul 5, 2009 12:23 PM UTC:
Modern Ministers Courier Chess is the most recent variant to join the Reverse Symmetric group.

Venomous. New system of chess on 10x10 board with new pieces: the Sorcerer Snake and the even more venomous Sissa. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, Jul 5, 2009 12:45 PM UTC:Excellent ★★★★★
Good to see the Sissa in action again! Love the new symbol for the Sissa!

Very interesting new piece the Sorcerer Snake... It feels like a longer range Knight, yet it's not a leaper, and is a cousin of the Sissa, as the path to it's destination square must be unobstructed.

The Sorcerer Snake's movement is actually easy to learn, and understanding it can make it easier for beginers to learn the more complex movement of the powerful Sissa.

Well done Charles!

PD. Just curious why didn't you also improved the Bishops and made them Wazir-Bishops (since you improved the Knights)?

Ajax Chess. All pieces have can play one square in any direction, the Mastodon leaper complements the Knight. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Fri, Jul 10, 2009 11:33 AM UTC:
Thanks for the info David. I wasn't aware of Micheletto's Ultra Chess.

The problem (in my opinion) with Ultra Chess is that all the pieces are able to capture each other upon close contact, and a King will never be able to go hunting or to defend itself against minor pieces in endgames because he will be hindered by the check received by any of the other pieces one square move.

Ajax Chess doesn't allow a capture on the pieces 'adopted' steps. Therefore in an endgame, a King is allowed to defend himself against a Bishop (Knight or Rook) as they can't capture or check him orthogonally (adjacently or diagonally).

The pieces on the other hand get an easy way to find a new outpost to perform their attacks. 

A 2 Knights and King endgame will finish swiftly in a mate in Ajax Chess.

💡📝Jose Carrillo wrote on Sat, Jul 18, 2009 04:05 PM UTC:
This is another reason why I didn't want my Ajax Rooks, Bishops and Knights to be able to capture with their 'adopted' moves:



This position is from my game with Vitya Makov is after 5.Bi7 with the Bishop pinning Black's Knight.

Should the Black Knight be able to capture on it's one-square 'adopted' moves, this type of pins would be impossible, for ... Nxi7 would remove the threat.

In my opinion this would make the game boring, and eliminate some of the chess tactics we are acustommed to.

On the other hand look at the possibilities of the new 'adopted' moves:

...

These positions are from my game with Jeremy Good before and after 8... Bc4+ check! with the c-Bishop switching from dark to light squares to find a new outpost to carry an attack.

Ajax Chess has the option to have Bishops playing in the same color squares, something I'm comfortable with.

Same color square Bishops that can switch back and forth from light to dark squares could make a nasty pair of aggresive Bishops.

Mastodon Chess. Standard pieces plus two Mastodons per side. A strategical big-board variant.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, Jul 18, 2009 08:36 PM UTC:
I just rediscovered the Mastodon in the shape of my Ajax Minister (inspired by enhancing the move of the Courier Man or Commonner):
http://www.chessvariants.org/index/msdisplay.php?itemid=MSajaxchess

Thanks Mats, for the historical research of the previous encarnations of the Man-Alfil-Dababah compound. I've added references to the games that used this compound before in my Ajax Chess rules page.

Ultra Chess. On 10 by 10 board with two queens, and major pieces have an additional king's move. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Mon, Jul 20, 2009 02:55 AM UTC:
Ajax Chess deals with the 'lack of variety' issue of Ultra Chess.

While all pieces in Ajax Chess (except for pawns) can play 1-square in any direction, minor pieces can not capture on their adopted 1-square moves (i.e. Rooks can't capture on their diagonal move, Bishops can't capture on their orthogonal moves and Knights are not allowed to capture on their one-square moves).

When I was experimenting with the movement of my Ajax-Pieces I found the same lack of variety that David Paulowich refered to in Ultra Chess, and decided to correct that feature by not allowing the minor pieces to capture with their adopted moves.

Modern Chess. Variant on a 9 by 9 board with piece that combines bishop and knight moves. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Tue, Jul 28, 2009 12:04 AM UTC:
Here is a Modern Chess preset that doesn't enforce the rules:
http://play.chessvariants.org/pbm/play.php?game%3DModern+Chess%26settings%3DAlfaerie2

Antoine,

The Preset you previously created has a bug in the Bishop adjustment. If a Bishop moves first (not adjusted), the 2nd Bishop is not allowed to adjust (which it should!)

Can you check it? 

Thanks.

Jose

Game Courier. PHP script for playing Chess variants online.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Tue, Jul 28, 2009 04:34 PM UTC:
Fergus,

How do we add pieces to a Game Courier graphs piece set?

I want to add two new piece graphics:

Ajax-Archbishop:

The Ajax-Archbishop moves like Bishop+Knight, plus it has one orthogonal non-capturing 'adopted' step.

Ajax-Chancellor:

The Ajax-Chancellor moves like Rook+Knight, plus it has one diagonal non-capturing 'adopted' step.

Thanks.

Ajax Chess. All pieces have can play one square in any direction, the Mastodon leaper complements the Knight. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Sat, Aug 1, 2009 05:10 PM UTC:
Two new Ajax pieces are:

Ajax-Archbishop:

The Ajax-Archbishop moves like Bishop+Knight, plus it has one orthogonal non-capturing 'adopted' step.

Ajax-Chancellor:

The Ajax-Chancellor moves like Rook+Knight, plus it has one diagonal non-capturing 'adopted' step.

These two pieces are use used in the variants: Ajax Modern Random Chess (9x9) and Ajax-Capablanca Chess (10x8)

How to Generate OTB Random Positions. How to generate random positions?[All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Thu, Aug 6, 2009 02:30 AM UTC:
Thanks for your comment Thomas.

As I said this was by no means an all inclusive list of processes for randomizing positions.

It was meant to have a stake in the ground on generating random positions for OTB games, and a place to comment on other methods, probabilities, etc. about random positions.

I agree with your comment on the same color Bishops.

The reason of some of my options is to keep the process simple with handy equipment.

Of course if everyone (like myself) carried a 10-sided dice around then matters would be a lot easier for randomizing.

But the fact is that a 6-sided dice and a couple coins are easier to find, so I setup simple procedure accordingly.

Remember these procedures are intended for OTB games.

How many random OTB games do you expect to play in one sitting? Not enough to matter.

Game Courier. PHP script for playing Chess variants online.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, Sep 19, 2009 01:47 AM UTC:
Fergus, are you back?

I want to add two new piece graphics to the (Unique) Alfaerie Many set.

Ajax-Archbishop:

The Ajax-Archbishop moves like Bishop+Knight, plus it has one orthogonal non-capturing 'adopted' step.

Ajax-Chancellor:

The Ajax-Chancellor moves like Rook+Knight, plus it has one diagonal non-capturing 'adopted' step.

Can you help me?

Thanks.

Ajax Modern Random Chess. Missing description (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Sun, Sep 20, 2009 03:45 PM UTC:
Fergus, can you help me with this?

I need to add two new piece graphics to the (Unique) Alfaerie Many set.

The Archbishop symbol I'm currently using in Ajax Modern Random Chess is misleading for the actual movements of the Ajax Prime Minister.

Ajax-Archbishop:

The Ajax-Archbishop moves like Bishop+Knight, plus it has one orthogonal non-capturing 'adopted' step.

Ajax-Chancellor:

The Ajax-Chancellor moves like Rook+Knight, plus it has one diagonal non-capturing 'adopted' step.

Thanks.

Rules of Chess: Castling FAQ. Frequent asked questions about castling.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sun, Sep 20, 2009 03:49 PM UTC:
The Excalibur program must have a bug. Castling is legal in that position.

Or you havenèt reset the castling flag or something like that on the Excalibur (I donèt own one, so I donèt know).

BTW, your Be3 moves are illegal in that sequence you provided, Bd3 is the correct move.

Your c1-Bishop (the one that actually can reach e3) is blocked by the d2-Queen.

Ajax Modern Random Chess. Missing description (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Sat, Sep 26, 2009 12:27 PM UTC:
My two new images can be used by chess variant creators however they want, if it makes sense according to the rules of their particular game.

The pieces I'm using in my Ajax variants just make logical sense as to the direction of their movement, but one must always remember the rules.

If I had to create new Ajax figurines, I couldn't play my Ajax variants OTB, which I do. I use a regular chess set, and elephants to represent the Ajax Ministers. Keep it simple!

My OTB opponents just know the rules, and know that the orthodox rook that they have always used in standard chess, in the Ajax games can move, but not take, one square diagonally.

-

Last time I checked my new pieces hadn't been aded yet to the Alfaerie Many set. Who else besides Fergus can help me with this?

💡📝Jose Carrillo wrote on Sat, Sep 26, 2009 08:25 PM UTC:
Gracias Carlos!!!

💡📝Jose Carrillo wrote on Sun, Sep 27, 2009 11:15 AM UTC:
Yes Charles, thanks for clarifying your thoughts.

Cool then! My Ajax pieces are a unique original invention then! :-)

This is one of the reasons why I didn't want my Ajax Rooks, Bishops and Knights to be able to capture with their 'adopted' moves:



This position is from an Ajax Chess game after 5.Bc1-i7 with the Bishop pinning Black's Knight.

Should the Black Knight be able to capture on it's one-square 'adopted' moves, this type of pins would be impossible, for ... Nxi7 would remove the threat.

In my opinion this would make the game boring, and eliminate some of the chess tactics we are accustomed to.

To play with Rooks that capture like a Ferz, Bishops that capture like a Wazir and Knights that capture like a king; try Ruggero Micheletto's Ultra Chess.

💡📝Jose Carrillo wrote on Mon, Sep 28, 2009 11:05 AM UTC:
Excellent Antoine!

Thanks!

Silver Elephant Chess. Missing description (10x8, Cells: 80) [All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Fri, Oct 2, 2009 10:59 PM UTC:
Thanks David.

I wasn't aware of White Elephant Chess or the Great Elephants.

I stand corrected I my evaluation of the strenght of the Silver Elephant.

I based my statement more on my short experience playing with the Silver Elephant and the Bishop on the same board, than empirically.

While the feeling from my short experience playing the Silver Elephant was that they were both similar in value.

Mathematically, these are my value estimates on a 10x10 board:

Bishop 3
Rook 10.5
Queen 16
Knight 5
Silver Elephant 4

What I was surpise to find out was that the Silver elephant was weaker to the Knight.

Janggi - 장기 - Korean Chess. The variant of chess played in Korea. (9x10, Cells: 90) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Tue, Oct 6, 2009 02:45 AM UTC:
Yes, you can use the 'swap' command.

Look at the text at the bottom of the Korean Chess Preset page:

= = =

To swap Elephants and Horses at the beginning of the game, use the swap command. For example, this will swap Elephants and Horses on both sides for Red, then move an Elephant. Follow each swap command with a semicolon, and use coordinates for its arguments. Use it only before your first move.

swap b1 c1; swap g1 h1; E b1-d4

Jose Carrillo wrote on Tue, Oct 6, 2009 02:57 AM UTC:
>> In N Korea, the initial positions of Rooks and Elepahnts are changed each other. 
>> It is a different opening setup. 

>>http://ko.wikipedia.org/wiki/%ED%8C%8C%EC%9D%BC:Yang_sang2.png

Thanks Tu Ren Dong.

Is it still legal to swap the Knights with the Elephants on the corners?

Here is a Game Courier preset for the North Korean setup:
http://play.chessvariants.org/pbm/play.php?game%3DNorth+Korean+Chess%26settings%3Ddefault

Jose Carrillo wrote on Tue, Oct 6, 2009 03:14 AM UTC:
You are right Nicholas.

I tested the swap command and it was banned. Fergus can you fix it? Thanks.

Meanwhile, this preset for Korean Chess:
http://play.chessvariants.org/pbm/play.php?game%3DKorean+Chess%26settings%3Dplain

Doesn't enforce any rules, and will allow to swap the pieces.

Jose Carrillo wrote on Tue, Oct 6, 2009 03:39 AM UTC:
>>How to procure the nice pieces shown on Jose Carillo's photograph on
>>this comment page? Thanks.

Jean-Louis Cazaux,

My pieces just come from a regular plastic set of chess pieces.

The Elephants are Seirawan Elephants.

For the Cannons, I cut off the top portion of the Rooks from a 2nd set (I kept the top of the Rooks to glue on to Knights to make Chancellors).

Finally I drilled holes on the headless Rooks to make them look like Cannons.

Cheers,
Jose

Korean Random Chess. A Korean Chess variation with a random setup and a few new rules. (9x10, Cells: 90) [All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Wed, Oct 7, 2009 11:57 PM UTC:
Korean Chess is Changgi.

Can a Korean speaker please translate 'Korean Random Chess'?

Thanks.

Cardinal Chess. Just like orthodox Western "Mad Queen" Chess only substituting knight-bishop compound for Mad Queen. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Thu, Oct 8, 2009 12:18 AM UTC:
The Cardinal (called Prime Minister) was used by Gabriel Maura in his 9x9 game Modern Chess, invented in 1968.

This page is dedicated to the Prime Minister (Cardinal, Archbishop, Centaur, Adjutant, Equerry, Hawk and Janus):
http://www.chessvariants.org/index/msdisplay.php?itemid=MStheprimeminist

Please let me know of interesting postitions with the Cardinal in action so that I can post them on the Prime Minister's page.

Korean Chess: photo's (2). Photo's of original Korean chess set.[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, Oct 10, 2009 11:08 PM UTC:Good ★★★★
I just bought this same set today! at Korean Town, Toronto, Ontario, Canada.

I bought it at a P.A.T. supermarket near Bloor St. West & Euclid St.

The pieces are sold separately from the board.

The plastic Changgi pieces are sold for $3.99 CAD, the board for $16.99 CAD featuring Changgi on one side and Baduk (Japanese Go) on the other.

The Go stones were $10.99 CAD for the (white and black) set.

The board and piece are all very good quality.

The web site on the outside of the box for the board: www.6brothers.com

Jose Carrillo wrote on Sun, Oct 11, 2009 01:51 PM UTC:
Nick,

I noticed what you meant about the painting finish.

I was wondering of the white dots myself. I figured that as part of the process of creating the pieces they were being held there (at the dots) by some other plastic sticks when the pieces were painted. The other side has no white dots. I'm planning to just paint the dots red and green myself.

If you find a nicer set of pieces (maybe made out of wood, but sold separately), yes I'm still interested.

I do not need a new Changgi board though.

Thanks.

Enjoy Korea!

Jose

[Subject Thread] [Add Response]
Jose Carrillo wrote on Mon, Oct 12, 2009 03:19 PM UTC:
I consider my Ajax army to be 'simple' in nature.

Just add the moves required to give pieces a Courier Man (Commoner) reach, and you get very interesting 'new traditional' pieces.

These extra 'adopted' moves are non-capturing to not upset some of the tactics (i.e. pins) we are used to and to allow the King a fair chance to defend itself against minor pieces in endgames.

The Ajax Chess complex includes: Ajax Chess (10x10), Ajax Random Chess (8x8), Ajax Modern Random Chess (9x9) and Ajax-Capablanca Chess (10x8)


Korean Random Chess. A Korean Chess variation with a random setup and a few new rules. (9x10, Cells: 90) [All Comments] [Add Comment or Rating]
💡📝Jose Carrillo wrote on Mon, Oct 12, 2009 03:55 PM UTC:
An internet English to Korean translation site gave the following translation (in Korean characters) for 'Korean Random Chess':



Can a Korean speaker tell me what this would sound like in English? Thanks.

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