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This item is a craft page
It belongs to categories: Orthodox chess, 
It was last modified on: 2016-02-27
 Author: Fergus  Duniho. Chess Variant Construction Set. Missing description[All Comments] [Add Comment or Rating]
fennaixelphox wrote on 2021-04-05 UTCExcellent ★★★★★

I'm working on making one of these with custom-built clay pieces!


Tristen Thielman wrote on 2021-04-05 UTCExcellent ★★★★★

I'm working on making one of these with custom-built clay pieces!


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 1997-01-15
 By Ralph  Betza. Chess with Mixed Pawns. Four normal and four Berolina pawns per player. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Stephen Tavener wrote on 2021-03-24 UTCGood ★★★★

Fun idea! Might I suggest the name ChiMPs?


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2001-03-26
 Author: Robert  Koernke Jr. Inventor: Robert  Koernke Sr. Quadlevel 3D Chess. Four level 3d chess. (4x8x4, Cells: 128) [All Comments] [Add Comment or Rating]
robert koernke wrote on 2021-03-18 UTCExcellent ★★★★★

You only need to checkmate/fork one King. In the standard-Rules version. Game play tends to be the same length as regular-chess.

Its one of the least complicated 3D-Games. Simply set-up 2-sets of chess-men.

The hardest part to explain is why its frowned upon to go on side-ways diagonals (in 3D) or that knights should not go in L-shapes without advancing or retreating from the opponent. I say frowned-upon, because of course you can change to non-standard rules. But you may find the game much longer, and knights to be as powerful as queens. Stalemates to be more attainable...


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2001-01-04
 Author: Christian  Freeling. Inventor: Demian  Freeling. Congo. Animals fight on 7 by 7 board. (7x7, Cells: 49) [All Comments] [Add Comment or Rating]
Sam T wrote on 2021-03-15 UTCExcellent ★★★★★

I have, as per Freeling’s comment, made a number of variants to Congo to address the issues brought up:

  • To address the fact Congo looks drawish, I have adopted the “Ko Rule” in my variant: Someone who repeats a previous position in a game loses. This eliminates draws.
  • To address the issue with river drownings making attacks harder, I have made the A, B, F, and G files of the rivers have “islands”: While the crocodile can move like normal on these squares, other pieces will not drown.
  • I have made the pawns stronger: A pawn can not retreat until it is promoted on the 7th rank; on the other hand, pawns across the river can now move and capture sideways. A promoted pawn is more powerful: It can move or capture to any space one or two squares away (like Chess, a promoted pawn should win unless it can be recaptured quickly)
  • I have made the elephants able to move forward like a Shogi Lance. They can also only move backwards one square.
  • I have changed the opening setup from GMELECZ to ZCELECZ, removing the Monkey and Giraffe, and having a second Zebra (Knight) and Crocodile. This way, the game can be played with an ordinary chess board and pieces.

In my Zillions-vs-Zillions testing, the games are never draws, and Black wins more often once we give Zillions 30 or more seconds to think through a move.

My changes can be seen here: https://github.com/samboy/ChessVariantResearch

Look in the folder “Congo”. Full rules for this variant, along with multiple possible opening setups, is here:

https://github.com/samboy/ChessVariantResearch/blob/master/Congo/EBW-1.md

Out of respect for the copyright included with the Zillions implementation of Congo, I am not distributing a modified version of the Congo zrf. Instead, I am distributing the original version, along with a Linux/Cygwin script to change Congo to have another .zrf with the modified rules. I have also made from scratch board artwork representing the new river with islands.

(Admin: This is Sam Trenholme. If you have a chance, please update my email address to be “pbm” in the domain “samiam.org” so I can reset my password).


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2021-02-15
 By Adam  DeWitt. Hanten Shogi. Variant of Suzumu Shogi with different promotion rules.[All Comments] [Add Comment or Rating]
Eric Silverman wrote on 2021-03-11 UTCExcellent ★★★★★

Good to see Hanten Shogi and its little brother revived! Looking forward to playing on Game Courier sometime :)

If I may make a suggestion, I remember in the previous version the switchback pieces had blue rather than red on the promoted side, which I thought was visually helpful. Any chance of that coming back?

Thinking ahead, perhaps there's an opportunity for an even wilder follow-up to Hanten Shogi -- a large Shogi with Kyoto-Shogi-style switchbacks after every move, including non-captures :)


UPDATED! This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2021-02-25
 By Max  K.. Tiraspol chess. (Updated!) Variant in which pieces capture as the piece whose starting file they're in.[All Comments] [Add Comment or Rating]
Jörg Knappen wrote on 2021-03-07 UTCExcellent ★★★★★

An interesting and very playable game. The figures are divergent pieces moving as the nominal piece and capturing as Querquisites.


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2001-01-04
 By Jens Baek Nielsen. Darkness Chess. You have only limited information on where your opponents pieces are. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
William Kiely wrote on 2021-02-22 UTCExcellent ★★★★★

Here's an animation of the game:

First game of dark chess ever played

https://lichess.org/study/WjUgZzpG

I like black's idea on the final move (Rh2! hoping to provoke Kg1), however white called the bluff.


UPDATED! This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2021-02-09
 By Kerry  Langford. CHESSAGON. (Updated!) CHESSAGON® is like traditional Chess, but with Triangles, with one new additional piece named the Duke.[All Comments] [Add Comment or Rating]
David Cannon wrote on 2021-02-09 UTCExcellent ★★★★★

I'm pleased to see this game! One correction : it is a trigonal, not hexaxonal, chess variant. The cells are triangles, not hexagons.

That said, I think this is an excellent contribution to the much under-explored trigonal tiling. Apart from a couple of games contributed by Graeme Neatham and Christian Freeling, along with a couple of my own, I think this is a little-used tiling which has lots of interesting possibilities for play.


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2018-09-03
 Author: KelvinFox. Inventor: George  Dekle. Masonic Chess. Game played on a Masonic tile board.[All Comments] [Add Comment or Rating]
Spencer Reed wrote on 2021-02-01 UTCGood ★★★★
I dig this board. I tried writing a Zillions of Games .zrt for Masonic Chess last night.  I think it's about finished, but I can't seem to get through debugging to try it out.  Anyone here still messing with Zillions .zrt files?

This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2001-12-18
 Author: Sergey  Sirotkin and Peter  Aronson. Inventor: Frank  Maus. Thinktank Chess. Frank Maus' game where most pieces move differently when capturing from how they move without capturing.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on 2021-01-24 UTCPoor ★

The table in the center of this page has several mistakes in the description column


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2020-01-30
 By Aurelian  Florea. Apothecary Chess-Classic. Large board variant obtained through tinkering with known games.[All Comments] [Add Comment or Rating]
Daniel Zacharias wrote on 2021-01-12 UTCExcellent ★★★★★

This is a very good game. Everything fits together well. The random setup provides variety without being completely chaotic. The brouhaha squares are a great way to add more pieces without making the board so big it feels empty. The promotion rule encourages more variety in promotion, which is something I look for particularly; and I like the auxiliary pieces used here. The Mameluk especially is fun.

I think I might slightly prefer the Modern Apothecary game, for it's Dragon and Griffin, which to me are more interesting than the Chancellor and Archbishop, but I like the Siege Elephant and Mameluk as auxiliaries, so it's hard to choose one game over the other. I don't know if I'd agree with the statement that the Joker can't defend well. It seems to me that it's ability to mimic an attacker's move makes it particularly good at defending and more difficult to use aggressively. I'm not great at chess (in any form), though, so I could be wrong about that.

I'm interested to see what the next games in this series will be like!


This item is a miscellaneous item
It belongs to categories: Orthodox chess, 
It was last modified on: 2001-07-24
 Author: Eric  van Reem. Inventor: Robert J. Fischer. The Birth of Fischer Random Chess. Missing description (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Lukas wrote on 2021-01-09 UTCExcellent ★★★★★

Excellent write-up, Eric. I actually didn't know Fischer presented 960 in 1996 - always thought it has been around for longer.


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2020-12-31
 By Frank  MacCrory. Horseman's Chess. Game where pieces mount and dismount.[All Comments] [Add Comment or Rating]
Daniel Zacharias wrote on 2021-01-06 UTCGood ★★★★

This looks fun


This item is a reference work
It belongs to categories: Orthodox chess, 
It was last modified on: 2017-08-11
 Author: Fergus  Duniho. Game Courier Developer's Guide. Learn how to design and program Chess variants for Game Courier.[All Comments] [Add Comment or Rating]
Samuel Hoskins wrote on 2021-01-06 UTCGood ★★★★

Where can I find an editor so I can have a piece set uploaded?


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2005-08-26
 By Devin  . Showdown Chess. No draws permitted. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Benjamin Silversten wrote on 2021-01-02 UTCPoor ★

Really? Insufficient material? What if the opponent has insufficient material?


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2020-04-30
 Author: H. G.  Muller. Inventor: Jean-Louis  Cazaux. Metamachy. Large game with a variety of regular fairy pieces.[All Comments] [Add Comment or Rating]
Daniel Zacharias wrote on 2020-12-29 UTCExcellent ★★★★★

Metamachy is fun. The historical pieces are all interesting to play with, and the fast pawns keep the game from slowing down too much.


This item is an unknown type!
It belongs to categories: Orthodox chess, 
It was last modified on: 2003-01-05
 By Fergus  Duniho. Game Courier. PHP script for playing Chess variants online.[All Comments] [Add Comment or Rating]
Samuel Hoskins wrote on 2020-12-25 UTCGood ★★★★

Fergus, in Janggi, if I want to swap both pairs of horses and elephants with each other, do I have to do it in a single action?


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2005-11-17
 By Gary K. Gifford. Shatranj of Troy. A Shatranj variant with Shogi-like drops, a Trojan Horse (with 6 pieces inside),. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Daniel Zacharias wrote on 2020-12-22 UTCExcellent ★★★★★

This looks like an amazing game! It combines shogi drops with a beautifully simple setup and set of pieces.

Reading the rules makes me want to play it; and also to design something similar, but it seems impossible to make anything quite as elegant as this.


This item is a reference work
It belongs to categories: Orthodox chess, 
It was last modified on: 2002-06-28
 By Ralph  Betza. Rule Zero. A base or starting rule set for most Chess variants.[All Comments] [Add Comment or Rating]
Benjamin Silversten wrote on 2020-12-19 UTCExcellent ★★★★★
I think it usually makes more sense to have pawns promote only to pieces in their own army.

This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2016-12-22
 By Kevin  Pacey. 4 Kings Quasi-Shatranj. Each side has 4 Kings, all pieces are short range. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
erik wrote on 2020-12-13 UTCGood ★★★★

I like very much short-ranges games, even with not very strong pieces, and this game falls into this category. Here the piece set (only of max 2-square range) is logical and works well, and the presence of 4 Kings, of which one must be checkmated (with the consequence of a unstoppable fork on several Kings being a checkmate), is here to help the outcome of the game. However, even with the 4 Kings, the game seems to take a very long time to finish; the two games in this website that had been led to a conclusion took 85 and (for the game that ended with checkmate) more than 110 turns, which seems too much for a game of that type. And I am a little bit sceptical concerning the mating potential: when most pieces have been exchanged, the four Kings can more easily prevent the Pawns to promote.

One solution would have been stronger 2-square range pieces, in a game closer to a short-range version of Sac Chess, with a KNAD being the strongest piece (or at least Centaurs, or KADs). The presence of the KNAD, able to force checkmate without assistance, would obviously make the game faster and more decisive, but in the same time maybe less balanced and tactically interesting. (In Metamachy, the power of the KNAD/Lion is well balanced by powerful long-range pieces.) And I wouldn’t suggest a change in the piece set of this game; it works well as it is, and a like it.

Another idea is making a game with 2 moves per turn. With the same pieces and victory condition, not only this would make the game shorter, but also the attacks more dangerous and less easy to counter (and the possibility of double check with two pieces). This solution seems to me more interesting, while keeping the character and the concept of the game, than to have stronger pieces.


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2005-05-17
 Author: Michael  Ireland. Viking Chess Set. Game board and pieces in search of rules. (Cells: 37) [All Comments] [Add Comment or Rating]
Michael Ireland wrote on 2020-11-29 UTCGood ★★★★

Thank you for pointing that out. I have now reviewed Pritchard's encyclopedia myself and agree there is a resemblance to Jabberwocky chess, but with fewer circles and no Queen (the King becoming the most powerful moving piece). I think we are getting closer to the origin story here of this board.

Arne Basse, from what I understand was a furniture designer, not known for chess boards. But he or whoever came up with this game could have been influenced by Parton. The timing would have been right as the board was produced in 1966. I wish there was a way to find out more about whether there is an archive of his designs somewhere, presumably in Denmark.


This item is a miscellaneous item
It belongs to categories: Orthodox chess, 
It was last modified on: 2006-02-26
 By Fergus  Duniho. 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 2020-11-29 UTCExcellent ★★★★★

Thank you Fergus, you spotted our problem right!


This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2005-05-17
 Author: Michael  Ireland. Viking Chess Set. Game board and pieces in search of rules. (Cells: 37) [All Comments] [Add Comment or Rating]
Michael Ireland wrote on 2020-11-28 UTCExcellent ★★★★★
New information on this thread: Another copy of this chess set has been found in an online posting on Board Game Geek!  Follow this link and scroll down to see the photo and comments: https://boardgamegeek.com/geeklist/276021/item/7825120#item7825120

Sadly this set is also missing the rules!  But I am attaching my most recent ruminations on what the rules were when I played the game in my youth :-)

Viking Chess Rules as best as they can be remembered – November 28, 2020

The goal of the game is to checkmate your opponent's king as in regular chess. 

Board: The board is made up of "rings" linking "crosses" (the spaces).  There is a centre space, the “star”, in the middle. 

Pieces: There is a king, 2 rooks (flat tops), 2 bishops (spikes) and 4 pawns per side.

All pieces start off the board.  

On their first turn (white goes first) each player places their king anywhere on the board on any space except the centre space (I believe that no piece could start on the centre star because it gives too much of an advantage to start there - but I am not 100% certain of the rule). 
In the second and subsequent turns, each player can either move an existing piece on the board or bring another piece onto the board as per turn 1.  

Different pieces move differently as follows:
-	Pawn moves one space in any direction 
-	Rook moves up to 3 spaces up or down, or one space to the side
-	Bishop moves up to 3 spaces around one of the rings, or one space up or down. 
-	King can move up to 3 spaces in any direction up or down

Once placed on the board a piece can enter the centre space or through it.

A player takes an opponent's piece by moving a piece into their opponent's piece's space.  Once a piece is removed from the board it cannot return.  I do not believe there is a rule to promote a pawn to a Bishop or Rook.

The King is the strongest piece on the board combining both the Rook's move (3 up or down) and the Bishop's move (3 around a ring in either direction). 

If the King is taken/mated the game is over.

This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2007-01-30
 By Andy  Maxson. Renaissance chess. a game played with the same board and set but with different rules. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
chessboards wrote on 2020-11-14 UTCExcellent ★★★★★

very interesting have noticed this when i was collating material on renaissance chess some time ago , didn't realise there's an actual different version of chess, thank you for the page Renaissance Chess


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