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This item is a computer program
It belongs to categories: Two dimensional, Large board
It was last modified on: 2020-01-23
 Author: Greg  Strong. ChessVThis item is a computer program
It belongs to categories: Two dimensional, Large board
It was last modified on: 2020-01-23
 Author: Greg  Strong.. Missing description[All Comments] [Add Comment or Rating]
Robert Mate wrote on 2021-08-05 UTC

I just noticed a bug. If all I do is start a game, make one move, and then take back the move while the computer is thinking.. it crashes. This happens in 2.2 and the new update.


Robert Mate wrote on 2021-08-05 UTC

Silverman and Microchess cvc files. Microchess is playable between humans, but crashes the ChessV engine. Not sure why.

https://www.dropbox.com/sh/8t14o11x6lq5294/AACVwG8aPAtAswr-LUd0EqZDa?dl=0

EDIT: I'm slowly adding small chess variants here.


Apothecary Chess Tournament[Subject Thread] [Add Response]
Aurelian Florea wrote on 2021-08-05 UTC

Unfortunately Erik has not logged in since May and I don't know how to contact him. Any ideas?


2.Manticore and 2. Griffin ?[Subject Thread] [Add Response]
Aurelian Florea wrote on 2021-08-05 UTC

@Jean-louis

Agreed but these are not the pieces I am talking about. I'm saying a piece that starts like a rook for the first 2 steps and then it goes towards outside like a bishop. So this 2. Maticore would be able to stop or be blocked at wazir sqaures.


Aurelian Florea wrote on 2021-08-05 UTC

@Bn Em I meant a piece that takes the first 2 steps like a rook and then towards outside like a bishop. The osprey jumps as a dabbabah and then moves towards outside like a bishop. So they are not the same piece.


NEW! This item is a game information page
It belongs to categories: Two dimensional, Each player has a different army
It was last modified on: 2021-07-26
 By Albert  Lee. Chess vs Strong Makruk. Chess against an enhanced Makruk army in an 8x8 board.[All Comments] [Add Comment or Rating]
Fergus Duniho wrote on 2021-08-05 UTC

Although this is called Chess vs Strong Makruk, all it describes is Strong Makruk.


UPDATED! This item is a game information page
It belongs to categories: Two dimensional, Large board
It was last modified on: 2021-08-04
 By Albert  Lee. Amazonia. (Updated!) 11x11 board with Pawns that promote to Princesses in the middle of the board.[All Comments] [Add Comment or Rating]
Fergus Duniho wrote on 2021-08-05 UTC

Okay, I unhid this page.


Albert Lee wrote on 2021-08-05 UTC

Thanks, I have corrected the Princess' moveset diagram by adding sideways moves.


Bn Em wrote on 2021-08-04 UTC

The Princess' diagram disagrees with the text in omitting sideways moves


2.Manticore and 2. Griffin ?[Subject Thread] [Add Response]
Jean-Louis Cazaux wrote on 2021-08-04 UTC

In wikipedia Fairy chess pieces they are the Osprey for DthenB and the Ostrich for AthenR


UPDATED! This item is a game information page
It belongs to categories: Two dimensional, Large board
It was last modified on: 2021-08-04
 By Albert  Lee. Amazonia. (Updated!) 11x11 board with Pawns that promote to Princesses in the middle of the board.[All Comments] [Add Comment or Rating]
Albert Lee wrote on 2021-08-04 UTC

Hi Fergus,

I have elaborated more on the Flying General move and included Janggi as well in the explanation.


Fergus Duniho wrote on 2021-08-04 UTC

What's the Flying General in Xiangqi?


2.Manticore and 2. Griffin ?[Subject Thread] [Add Response]
Bn Em wrote on 2021-08-04 UTC

Charles Gilman called these Zephyr and Lama respectively, though by his description they cannot make the one‐step move that I'm not sure whether you're including. The latter also turns up as an Osprey in Expanded Chess


Apothecary Chess Tournament[Subject Thread] [Add Response]
Aurelian Florea wrote on 2021-08-03 UTC

I have assigned the round six games!


NEW! This item is a game information page
It belongs to categories: Two dimensional, Each player has a different army
It was last modified on: 2021-07-26
 By Albert  Lee. Chess vs Strong Makruk. Chess against an enhanced Makruk army in an 8x8 board.[All Comments] [Add Comment or Rating]
Albert Lee wrote on 2021-08-03 UTC

This post is ready for publication.


UPDATED! This item is a game information page
It belongs to categories: Two dimensional, Large board
It was last modified on: 2021-08-04
 By Albert  Lee. Amazonia. (Updated!) 11x11 board with Pawns that promote to Princesses in the middle of the board.[All Comments] [Add Comment or Rating]
Albert Lee wrote on 2021-08-03 UTC

This post is ready for publication.


UPDATED! This item is a game information page
It belongs to categories: Two dimensional, Orthodox chess set but with special rules about the board
It was last modified on: 2021-07-29
 Author: Alessandro  Castelli and Fergus  Duniho. Inventor: Don  Miller and Leo  Nadvorney. Spherical chess. (Updated!) Sides of the board are considered to be connected to form a sphere. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Fergus Duniho wrote on 2021-08-03 UTC

On e.g. a 10‐file board, Miller's reasoning would line up with Nadvorney's.

That's a good point. On a 10-file board, the files would surround the pole in a way that makes diagonal movement more intuitive, and once the board was defined, it would be easy to make spherical adaptations of various 10x8 variants like Grotesque Chess and other related games or 10x10 variants like Grand Chess.


Fergus Duniho wrote on 2021-08-03 UTC

All I did to the original diagram was change its formatting to make it easier to read. I got the idea for putting a box around the main board from Pritchard, who did the same, but unlike him, I left all the inner coordinates in.


Bn Em wrote on 2021-08-02 UTC

While on its own the original diagram on this page was a bit obscure, in conjunction with Fergus' circular diagrams it really clarifies the rationale behind Nadvorney's interpretation of the diagonal move; a bit of thought also reveals why Miller's reasoning in keeping the bishop on its own colour is flawed: if the bishop stays on its own colour you would expect a rook stepping over the pole to change colour as it does on a normal square‐cell board, whereas here (or on any spherical/Klein‐bottle‐shaped board with a multiple of four files) it doesn't. On e.g. a 10‐file board, Miller's reasoning would line up with Nadvorney's.

As for Chess on the Dot, the change in the diagonal's handedness at the poles also keeps it on one colour (on a board of this parity), but isn't stirctly necessary for a closed loop: Nadvorney's version (as can be seen on its diagram) does it just as well, and even Miller's manages, albeit via a much more circuitous route.

Fwiw, here's the original diagram as salvaged from the Internet Archive:

c7  d7  e7  f7  g7  h7  a7  b7  c7  d7  e7  f7
c8  d8  e8  f8  g8  h8  a8  b8  c8  d8  e8  f8
g8  h8  a8  b8  c8  d8  e8  f8  g8  h8  a8  b8
g7  h7  a7  b7  c7  d7  e7  f7  g7  h7  a7  b7
g6  h6  a6  b6  c6  d6  e6  f6  g6  h6  a6  b6
g5  h5  a5  b5  c5  d5  e5  f5  g5  h5  a5  b5
g4  h4  a4  b4  c4  d4  e4  f4  g4  h4  a4  b4
g3  h3  a3  b3  c3  d3  e3  f3  g3  h3  a3  b3
g2  h2  a2  b2  c2  d2  e2  f2  g2  h2  a2  b2
g1  h1  a1  b1  c1  d1  e1  f1  g1  h1  a1  b1
c1  d1  e1  f1  g1  h1  a1  b1  c1  d1  e1  f1
c2  d2  e2  f2  g2  h2  a2  b2  c2  d2  e2  f2 

NEW! This item is a Zillions-of-Games file
It belongs to categories: Two dimensional, Orthodox chess set but with different capturing rules
It was last modified on: 2021-07-31
 Author: Fergus  Duniho. Inventor: John  Leslie. Hostage Chess ZIP file. Pieces taken are held hostage and can be exchanged against other pieces and then dropped.[All Comments] [Add Comment or Rating]
Fergus Duniho wrote on 2021-07-31 UTC

John Leslie noticed some bugs in the previous version, and I found out that the latest version on my computer had already fixed those bugs. So I included it in a new zip file with some changes to the initial comments.


UPDATED! This item is a game information page
It belongs to categories: Two dimensional, Large board, Three or more players, From ancient times, War game, Chess combined with some other game or sport
It was last modified on: 2021-07-27
 By Daphne  Snowmoon. Pandemonium (Surajang修羅場). (Updated!) Capablanca chess + Crazyhouse.[All Comments] [Add Comment or Rating]
Daphne Snowmoon wrote on 2021-07-30 UTC

Some pieces have been renamed

Van -> Wazir (Movement also changed: D -> W)

Ferz(Sa士) -> Ferz(In刃)


UPDATED! This item is a game information page
It belongs to categories: Two dimensional, Orthodox chess set but with special rules about the board
It was last modified on: 2021-07-29
 Author: Alessandro  Castelli and Fergus  Duniho. Inventor: Don  Miller and Leo  Nadvorney. Spherical chess. (Updated!) Sides of the board are considered to be connected to form a sphere. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Fergus Duniho wrote on 2021-07-29 UTC

I have updated this page with diagrams and more detailed descriptions.


NEW! This item is a game information page
It belongs to categories: Two dimensional, Orthodox chess set but with different moving pieces, Orthodox chess set but with different initial setups
It was last modified on: 2021-07-13
 By John  Loftus. All Out. The pieces are dropped one at a time, remaining immobile until the king is dropped.[All Comments] [Add Comment or Rating]
Ben Reiniger wrote on 2021-07-28 UTC

From this:

Pieces of a player's army may not move until their army's king has been placed on the board.

I take it that pieces can be kept in hand indefinitely after piece movements have begun. But the first sentence:

Players take turns dropping their pieces onto an empty board one at a time, anywhere, and in any order they wish.

gives the impression that all drops happen before ordinary movement begins. A little clarification would be nice.

This is fairly similar to some other games. I think the closest may be Unachess; the main difference is that there, noncapturing moves are allowed before the king arrives. There is concern expressed on that page that white has a significant advantage by rushing a queen+king; does that not happen here (and why not)?

Why limit to two pawns?


This item is an organization, society, group or company
It belongs to categories: Not categorized
It was last modified on: 2017-09-07
 Author: Fergus  Duniho. NOST: kNights Of the Square Table. kNights Of the Square Table.[All Comments] [Add Comment or Rating]
Fergus Duniho wrote on 2021-07-28 UTC

Are there any former NOST members around with back issues of NOSTalgia that could be scanned and put on the internet? The NOST website had only a few of the latest issues. Pritchard sometimes used it as a source for his Encyclopedia of Chess Variants, but his descriptions of games are often sketchy rather than complete.


UPDATED! This item is a game information page
It belongs to categories: Two dimensional, Orthodox chess set but with special rules about the board
It was last modified on: 2021-07-29
 Author: Alessandro  Castelli and Fergus  Duniho. Inventor: Don  Miller and Leo  Nadvorney. Spherical chess. (Updated!) Sides of the board are considered to be connected to form a sphere. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Fergus Duniho wrote on 2021-07-28 UTC

I started on adding an introduction, but it's late, and I will have to wait until tomorrow to continue.


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