Ratings & Comments
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.
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I have updated this page with diagrams and more detailed descriptions.
Some pieces have been renamed
Van -> Wazir (Movement also changed: D -> W)
Ferz(Sa士) -> Ferz(In刃)
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.
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
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.
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.
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
Hi Fergus,
I have elaborated more on the Flying General move and included Janggi as well in the explanation.
In wikipedia Fairy chess pieces they are the Osprey for DthenB and the Ostrich for AthenR
The Princess' diagram disagrees with the text in omitting sideways moves
Thanks, I have corrected the Princess' moveset diagram by adding sideways moves.
Although this is called Chess vs Strong Makruk, all it describes is Strong Makruk.
@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.
@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.
Unfortunately Erik has not logged in since May and I don't know how to contact him. Any ideas?
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.
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.
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I started on adding an introduction, but it's late, and I will have to wait until tomorrow to continue.