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Comments by nelk114

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Fluidity Chess. (Updated!) No displacement capture, all non-royal pieces take by cutting through or bypassing. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, Feb 3 09:28 PM UTC:

OK so looking at the page as it stands, I think I can make out most of the rules, so in that sense it at least more‐or‐less meets the minimum criteria for publishing. Nevertheless I feel it could be profitably edited to make the flow of information clearer. A couple of specifics:

  • ‘In a row’ (Pieces section, Paragraph 1) doesn't imply adjacency in English; I would consider all the black pieces in each Diagram except the g7 knight to be in a row. ‘Adjacent’ would be more precise, or you could say explicitly that this applies even if there are no empty spaces between them, as long as there is one behind them
  • The descriptions of the pieces make no distinctions between rules (e.g. “moves & checks as in chess, unobstructed diagonal line”) and incidental observable properties (“can't capture a piece which stands on the edge of the board”); in general it's more useful to separate these out clearly — the latter is perfect Notes section material
  • It might be clearer to describe the details of the Ranging moves (and captures) outwith the individual piece sections, all in one go; it might even be sufficient to just describe how their captures differ from the orthodox ones (e.g. “Bishop, Rook, and Queen move and give check as in normal Chess, but capture differently as follows:” followed by the list of applicable rules).
  • You note that capturing is optional for the knight; is it possible for it to take one potential victim but not both? The Example clarifies that it can capture even if the other square it passes through contains a Friendly piece, but that might be worth making textually explicit too
  • Can a king castle if it's in check from a piece it would capture by castling? e.g. White Ke1,Ra1/Black Rd1? A literal reading says no, but it could be made more explicit either way
  • The requirement for a space between pieces to be captured by castling is inconsistent with the lack of such a requirement for all other pieces; why?
  • The distinction between giving check and winning by capture, whilst as you say shared with Atomic, I find very strange (in both games); saying that a threat of capture is also check would lead to entirely equivalent outcomes. But with Atomic as a precedent I guess this isn't in itself really a blocker for publication

Что скажете? (Translations to Russian language).[Subject Thread] [Add Response]
Bn Em wrote on Sat, Feb 3 09:58 PM UTC:

The main problem here is that I don't think anyone among the editorship understands Russian (I can speak German and Spanish, I presume H.G. speaks Dutch, and Jean‐Louis, while not presently an editor, would be able to help with French, but as far as I'm aware that's about it), so it would be difficult to be confident in the quality of such a translation (though I suppose there are other Russian speakers on this forum, who might be better placed to help in this regard?).

That said, in principle I'm all for having more Russian‐language (or any other non‐English) pages, so if we can find a way to make this work by all means :‌)


Steward. Omnidirectional Pawn.[All Comments] [Add Comment or Rating]
📝Bn Em wrote on Sat, Feb 3 10:45 PM UTC in reply to H. G. Muller from 02:17 PM:

Note that a pair of Stewards can in general force checkmate against a bare King

I hadn't expected that or I'd've had a provisional note to that effect; it's added now, as is an updated note about the value.

I don't suppose there's a way of linking to the 3‐on‐1 checkmating applet with pieces preselected? There's a similar thing on e.g. the Archbishop page but it doesn't use the normal 2‐on‐1 applet


📝Bn Em wrote on Tue, Feb 6 01:15 AM UTC:

But 8x8 is the largest square board where they manage that

Noted

The problem for having something similar for 3-vs-1 is not technical, but the use case

The Stewards being the exception proving the rule :‌)

Page descriptions can be edited from the editors' Edit Links page ([links]).

Ok, I've done that now; I'd spotted that page but wasn't sure it was usable for updating links as well as adding new ones (it's not terribly extensively documented(!)) and I'm still not sure I can intuit the correct set of features just from looking at it. Maybe something to test in future

"capturing" in the paragraph with my name in it is misspelled

Well spotted :‌) something was bound to get through (I'm lightly surprised I'm not spotting more to be honest)

UCC may be of interest, regarding your Steward article

Perhaps once it's ready and published ;‌) Little sense in linking out to a page noöne can (yet) officially access


@ Bob Greenwade[All Comments] [Add Comment or Rating]
Bn Em wrote on Tue, Feb 6 01:17 AM UTC in reply to Bob Greenwade from Mon Feb 5 03:59 PM:

I'm sure someone will come up with it within the hour

Hardly on time, but the Griffin+Rhino is Gilman's Gorgon, also used under that name by Daniil Frolov


Что скажете? (Translations to Russian language).[Subject Thread] [Add Response]
Bn Em wrote on Tue, Feb 6 01:36 AM UTC in reply to Jean-Louis Cazaux from Sun Feb 4 06:45 AM:

The problem of names of the piece, which is already an issue in English, may become a problem with other languages

Yeah piece nomenclature would definitely be the hardest part of this; as H.G. notes, there'll be some precedent in whatever exesting literature on CVs there is in a given target language, but that will almost certainly be limited in scope for most languages compared to what we have here (even, say, Die Schwalbe's relatively extensive glossary has some, from a variantist point of view, arguably major omissions). And as you say there's a certain amount of conflicting usage between languages that makes things less than straightforward.

Of course, that cuts both ways; would‐be translators have an opportunity (if they do their research appropriately) to avoid making quite as much of a mess of naming as we have in English :‌) Even if we don't go as far as attempting the likely‐futile task of trying to replicate the likes of Man and Beast in, say, French.

And depending on the pages Lev is interested in translating it may not be much of an issue at all; plenty of games on these pages use only the Orthodox sextet

If I had to translate Bigorra with its more than 30 different pieces, I may come to some difficulties

Might be an interesting exercise in itself, to see how feasible such a task would be. And whilst i don't know the established French names (assuming there are any) for Cardinal/Marshall/Amazon, most of the remaining pieces (with the exception of the Direwolf and maybe the Soldier) ought to be easily translated word‐for‐word. For Russian we might have to pay more attention to the Elephant and Ship (we could always take precedent from English and go with ‘Филь’ for the former at least), and Italian/Spanish/German might want something more distinct from ‘dame’ than ‘duchess’, but these are exceptions really.


Steward. Omnidirectional Pawn.[All Comments] [Add Comment or Rating]
📝Bn Em wrote on Thu, Feb 8 01:37 AM UTC:

I now set up a 3-vs-1 page that can be preconfigured in the same way as the existing 2-vs-1 page

I've added a link to that, plus a bit more of your detailed explanation (with the terms clarified — hopefully correctly — as they're as yet far from established terminology)

The mFcW is potent (it can switch its attack from c1 to a1 by moving from c2 to b1), and can thus in principle force mate together with any minor

I'm lightly torn on whether to include this information on the page too; it's not the main subject of the page but it's interesting and it'd be a shame to have it hidden away in a comment

You're missing a link to Interdependent Chess

It does have a link earlier in the page; I had made a conscious decision not to duplicate links (the two Schwalbe glossary links being to different portions of the document), though I don't feel strongly about that if you feel it's better to link it twice

I left a comment on that page about the name of Guardian being used for the Berolina Steward in Lt. Obert's Decimal Chess from the 1870's

I'd completely forgotten about that, especially since it's not the main subject of the page; I've added a mention thereof (though CECV gives the date as 1880, which is what I've put down)

In Decimal Chess, Obert gave his Guardian a double move

The relevance of double moves for pawnlike pieces such as steward and guardian had gone completely over my head; it's late now but I'll make sure to double(!) check when I next get time to do so what the rules are in the various games (though I expect it'll be double moves only if they're pawn replacements)


Что скажете? (Translations to Russian language).[Subject Thread] [Add Response]
Bn Em wrote on Thu, Feb 8 02:07 AM UTC in reply to Jean-Louis Cazaux from Tue Feb 6 06:59 AM:

The difficulties in Fr would be that "knight" is translated by "chevalier" in a general context and by "cavalier" (meaning a horse rider) in the context of chess. So a CV having Knight, Cavalier and Chevalier, will be difficult to translate in French. Or a CV having a Tower and a Rook, both being "Tour". A CV having a Lady, would be translated as "Demoiselle", as "Dame" is already the word for Queen. Etc.

In general, this is true, yes; my previous comment was referring specifically to Bigorra (and by extension the rest of the games in its family) which doesn't have such conflicts.

The difficulties with translating to French are mainly due to French being one of the main sources for Modern English

I'd say the difficulty is a little subtler: English, due to both its Lingua Franca status and its extensive acquisition of loanwords, simply has a lot of words in certain semantic domains that mean either the same or very similar things. Which is obvious when, as with French, there are actual clashes, but even in Russian I'd be a little surprised (perhaps @Lev can enlighten us?) if it had three different words for Knight/Cavalier/Chevalier.

For comparison, German might get away with that triplet using both ‘Knecht’ and ‘Ritter’, (cognate to ‘Knight’ and ‘Rider’ respectively, and with (I think) slightly different connotations), but even then only because the Chess Knight is unrelatedly named ‘Springer’ — it can thus even spare a word for ‘Horse’ (‘Pferd’ — or even ‘Ross’ if necessary, though that'd be a bit like naming two pieces ‘Horse’ and ‘Steed’ in English). It would have just as much trouble as French with ‘Rook’/‘Tower’ (both ‘Turm’), though.

At some point, creative license would no doubt become necessary.

Some English speakers would call [Cardinal and Marshall] Archbishop and Chancellor or Princess and Empress

And some would call the Amazon Ace or Terror. Yes, English CV nomenclature is a mess.

One might argue that's an accident of history: several people independently reinventing the same pieces under different names before any one convention got established. There's no reason a priori to replicate that in translation (this being the ‘opportunity’ I referred to).


Alfil. (Updated!) Jumps two diagonally. Arabic for the elephant.[All Comments] [Add Comment or Rating]
Bn Em wrote on Thu, Feb 8 02:13 AM UTC in reply to Jean-Louis Cazaux from Tue Feb 6 07:09 PM:

Since you've done the research, would you care to do the honours of writing up a page?

If not I'll probably pick it up eventually (unless someone else beats me to it), but since I don't own a copy of your book I'd probably miss something.


Wild Samarkand. This is a Game Courier preset for Wild Samarkand, one of the variants from the Timurid Family. (12x12, Cells: 144) [All Comments] [Add Comment or Rating]
Bn Em wrote on Thu, Feb 8 02:24 AM UTC in reply to Florin Lupusoru from Wed Feb 7 03:30 PM:

his chess variant was not even that great

The distinction there is probably not so much one of quality as of priority; it's one of the earliest enlargements of Shatranj (behind Grant Acedrex) that did more than add one, maybe two, pairs of pieces to the board.


Unnecessarily Complicated Chess. Members-Only Why do things the easy way, when doing them the hard way is so much more fun? (19x23, Cells: 423) [All Comments] [Add Comment or Rating]

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Battle of the Kings. You start with eight pawns. The rest chess pieces appear on the board during the game.[All Comments] [Add Comment or Rating]
Bn Em wrote on Thu, Feb 15 01:42 PM UTC in reply to Gerd Degens from 12:40 PM:

Odd. It works for me in the full comments listing but not in isolation.

Also, the AI capitulates immediately as the game begins without Kings on the board.


Betza notation (extended). The powerful XBetza extension to Betza's funny notation.[All Comments] [Add Comment or Rating]
Bn Em wrote on Thu, Feb 22 01:55 PM UTC in reply to H. G. Muller from Wed Feb 21 07:32 PM:

should [arbitrary XBetza move footprints as blastZone] have an absolute orientation, or be relative to the move of the burning piece? […] you could not specify an Advancer with [absolute directions]

But surely the advancer doesn't have a burning move? But rather an extension of its movement to capture on the next square? After all, passive burning is out of the question for an advancer (unless it were to remember its orientation)

Or have I misunderstood how blastZone works? (And also, now that I'm rereading the IDiag page, does the burn spell act only on pieces landing next to the spellcaster, or also on pieces it lands next to? A strict reading of the text implies the former plus a need for a matching blastZone, but this seems… an unusual rule, if consistent with modern Tenjiku)

cc (or, indeed, :) looks like it'd make sense


Not-Particularly-New Chess. A fairly restrainted variant on a 9x8 board, with Cardinals, Unicorns and Jesters. (9x8, Cells: 72) [All Comments] [Add Comment or Rating]
Bn Em wrote on Fri, Mar 1 08:24 PM UTC in reply to Ben Reiniger from 01:21 AM:

I assume I'd added the tag on account of the ‘Minimal Not-Particularly-New Chess’ subvariant described some way down the page, which basically only adds the Cardinal to the usual array and would thus qualify.

It's not entirely clear what to do about pages describing multiple games; do we tag it if anything on the page qualifies, or only if they all do? Or, in cases like this, only if it's the main game on a page? I'm happy to remove the tag if we prefer (either of) the latter two


Steward. Omnidirectional Pawn.[All Comments] [Add Comment or Rating]
📝Bn Em wrote on Thu, Mar 14 11:40 AM UTC in reply to HaruN Y from Thu Mar 7 07:11 PM:

Do you have a link for that? Would definitely be good info to have here

@Bob: No doubt you're at least the first person to deploy it using Gilman's name :‌) (even if that's an even more trivial place in history ;‌P)


Betza notation (extended). The powerful XBetza extension to Betza's funny notation.[All Comments] [Add Comment or Rating]
Bn Em wrote on Thu, Mar 14 11:56 AM UTC in reply to Bob Greenwade from Wed Feb 28 03:48 PM:

Clearly one argument against expanding beyond ASCII would be disagreement over which letters to include! My preference would be where possible to stick to non‐precombined characters; thus we'd both be ok with ⟨Þ⟩ or ⟨Æ⟩, but I'd avoid ⟨Š⟩ and ⟨Ä⟩ whereas you'd (presumably) take exception to ⟨Ƿ⟩ or ⟨⟩ (assuming those even show up for you).

One valid use for beyond‐ASCII letters imo would be expanding Betza beyond the square board; we have few enough capitals left that e.g. ⟨⟩ for ‘ⅎiceroy’ or ⟨⟩ for ‘ßexton’ (both of course Gilmanese) might be in order. And since the ID doesn't do non‐square boards (except through hacks as for Chess66) it wouldn't even need to worry about them. Likewise the non‐square directional qualifiers (I'm maybe grasping at straws a little with ⟨ɂ⟩ and ⟨ƿ⟩ for ‘up’ and ‘doǷn’, but non‐ASCII letters cover an odd sound space…)

There is no such thing as a 'regular keyboard'

Especially when you have people like me who (heavily) customise their layouts; all the characters I've just typed (except the quotation) are accessible for me without copy–pasting


Bn Em wrote on Thu, Mar 14 11:52 PM UTC in reply to Fergus Duniho from 03:34 PM:

why you want to expand xBetza

As with Bob, really my answer is (at the moment) that I don't; it works well enough for what it does (as H.G. has elaborated on). More that we were discussing a previous commenter's proposal to extend it using non‐ASCII.

I'd still be tempted to hold out a degree of openness for exactly the purpose I mentioned: 3D (let alone 4D) or unusual (hyperbolic, say — I've been musing over an actual Regular Octagonal Chess to match Frolov's approximation) boards where the existing letters would all apply but more would be necessary to cover the extra moves. Though one might equally argue that at that point it's far enough from the familiar that Betza is somewhat out of its depth anyway.

And while hexagonal boards may be in scope for the ID, I imagine 3D and hyperbolic boards are far from it ;‌)

you'd (apparently) lean toward using ß for Sexton, while I'd use it for Switchback

We're technically not contradicting each other; I was using capital ⟨⟩, as is usual for atoms, whereas Switchback, whilst really something that XBetza would tend to spell out explicitly, is definitely small ⟨ß⟩ material

under my suggestion, I could define Þ to represent the Rose's movement path (possibly with a line something like def Þ = qN -- not just a character replacement, but a definition of a movement path).

Strictly speaking a path‐and‐mode model is not quite what XBetza does; rather it decribes moves in stages.

Which is, to be fair, in line with how Betza thought; the ‘Ferz‐then‐Cannon’ of his Bent Riders article comes easily to XBetza whereas a path‐and‐mode description thereof is cumbersome at best. Conversely path‐and‐mode describes the contrasted ‘Bent Cannon’ much more naturally.

I may be wrong, but trying to get XBetza to manipulate a Rose path in that way once it's been defined might be more convoluted than it appears


Steward. Omnidirectional Pawn.[All Comments] [Add Comment or Rating]
📝Bn Em wrote on Fri, Mar 15 01:51 PM UTC in reply to HaruN Y from 07:34 AM:

Hmmm, there doesn't seem to be any attribution on that (unless it's missing because I'm on Desktop); shame really, nice to be able to attribute things where due. I'll definitely mention it though (and might be worth the Chess+ link as well (I'd look for it myself but the site seems to lack a search facility), if only for the attribution — and the fact that ‘Test’ is not the most inspiring name for a game!)

ChessCraft

I'd been wondering where you were getting all the variants from (especially since you attribute them to others) that you've been posting IDs for :‌)


MSmarine-chess[All Comments] [Add Comment or Rating]
Bn Em wrote on Fri, Mar 15 06:02 PM UTC in reply to Florin Lupusoru from 03:34 PM:

‘Marine’ here is a problemist usage; most of these names do seem to be standard for these pieces in the Problem world (though my go‐to source is in German so there may be differences). ‘Prawn’ for Marine Pawn differs from German usage of ‘Matelot’, or Sailor, but since I don't immediately find any English‐language references to Marine pieces that name the Pawn analogue I'm willing to let it stand.

I'll do a more thorough check later but I don't expect it'll get in the way of publishing this


Sacrificial Chess. (Updated!) Missing description (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, Mar 16 01:29 PM UTC in reply to H. G. Muller from 09:52 AM:

Something like this? Noting that the bishop would threaten its own king (without checkmating the opponent) if it took the rook, neither side has any valid moves.

Though there seems little reason to judge that differently from a win for the last to move


Fluidity Chess. (Updated!) No displacement capture, all non-royal pieces take by cutting through or bypassing. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, Mar 16 01:55 PM UTC:

I made a couple of minor edits for grammar (and in one case formatting); more could in principle be done but I prefer to be conservative with all but the most egregious things. Please check to see if there's any of the edits that you take issue with (I'd imagine not), and if they're OK with you I'll release it — I think the rules themselves are clearly enough stated

With apologies for taking so long :‌) (life got a bit busy for a moment there)


MSgi[All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, Mar 16 02:03 PM UTC in reply to Cyril Veltin from Tue Feb 6 09:36 PM:

I see, I missed it because it's under the heading of Promotion rather than grouped with the description of the (unpromoted) Princess' move. I'd recommend grouping it with the latter; seems to me people are likelier to find it there

‘Mandatory promotion’ simply means deferring promotion isn't allowed, correct?

Have you tested with the (lack of) pawn‐drop‐checkmate rule? Seems to me there'd be a reason (i.e. pawn‐drop checkmates being distastefully frequent) for that to be in Shōgi, and whilst I may be wrong it doesn't look like this game differs so much that that reason would become invalid


@ Bob Greenwade[All Comments] [Add Comment or Rating]
Bn Em wrote on Mon, Mar 18 04:41 PM UTC in reply to Bob Greenwade from Sat Mar 16 02:59 PM:

Other possibilities include replacing one side or the other with a Querquisite ((al) or (ar))

By which I assume you mean Quintessence? ;‌)

I'm among those who are not so big on the leaping riders, but I'll admit these are pretty cool. And of course sliding analogues (R or B plus chiral qK) are also possible


Bent Riders. A discussion of pieces, like the Gryphon, that take a step then move as riders.[All Comments] [Add Comment or Rating]
Bn Em wrote on Fri, Mar 22 10:22 PM UTC in reply to HaruN Y from 03:26 AM:

Note that Betza's Twin Tower moves outward forward or backward; i.e. it's the same piece as Jean‐Louis' Ship, and thus shouldn't be able to reach the sW squares at all.

Incidentally, the Twin Tower paragraph has a dangling footnote reference; Greg's edits effaced the original footnote (a jokingly cynical take on World Trade Centre merchandise). Is it worth restoring that (It's probably still on the Internet Archive somewhere), or better to simply remove the footnote reference?


Piececlopedia: Pushme-Pullyu. Moves like a Queen, and captures by approach and withdrawal.[All Comments] [Add Comment or Rating]
Bn Em wrote on Fri, Mar 22 10:37 PM UTC in reply to Bob Greenwade from 02:00 PM:

This reasoning seems sound to me

Other (minor) advantages include the usual visual trope (the Pokémon Girafarig comes to mind) that the forward‐facing head is more prominent (the Ram is both bigger than and in front of the Ox), and (super minor, but a nice touch) that the positions of the larger and smaller heads matches that of the original Knight–Camel image (which, incidentally, is used on several (all?) pages featuring the Pushme–Pullyu, not just here)

Would it be worth trying a slightly less flattened Ram? Probably due to the relative roundnesses, it seems to suffer that scaling more than the Ox does


Immortal Chess. 36 Immortals with hidden powers create chaos on the board. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
Bn Em wrote on Fri, Mar 22 10:51 PM UTC:

The big omission I see: can an Immortal capture on the move it's brought in with?

While bringing them into the game players have to make sure that they are moved at a safe distance from both Kings, so that no King will be in check

Is this an extra rule? Ensuring your own king won't be in check makes sense, but you've nowhere else suggested that it would be a bad idea to potentially check the opposing king, unless this is supposed to tacitly forbid that

I am not sure if anybody has ever tried before to use chess pieces with hidden identities

The Disguised Pieces tag has a couple games that might be similar; These two probably come closest, though neither goes quite as far as your Immortals


Xodohtro Chess. Members-Only Inverting some of the rules of orthodox Chess. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]

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Piececlopedia: Pushme-Pullyu. Moves like a Queen, and captures by approach and withdrawal.[All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, Mar 23 12:33 PM UTC in reply to Fergus Duniho from 12:56 AM:

I think you mean more flattened

I'd meant less horizontally flattened, i.e. wider, but yes making it less tall achieves the same and it does look better that way

might seem unrealistic in a composite

I imagine with semi‐abstract iconography like this people tend to be willing (I know I am) to suspend their disbelief a little :‌)


Immortal Chess. 36 Immortals with hidden powers create chaos on the board. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, Mar 23 12:40 PM UTC in reply to Florin Lupusoru from 10:02 AM:

the Deception Chess has removed everything but the title

That's odd; it shows up fine for me

(the gist of it is that each piece has a secret identity (chosen by the owning player) and on your move you can change a still‐disguised piece into its secret counterpart. Pieces have their secret identity revealed on capture, and the secret king is the one that has to be checkmated/captured)


Xodohtro Chess. Members-Only Inverting some of the rules of orthodox Chess. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]

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Piececlopedia: Pushme-Pullyu. Moves like a Queen, and captures by approach and withdrawal.[All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, Mar 23 04:30 PM UTC in reply to Fergus Duniho from 03:55 PM:

(Let's hope we never need a Spider-Elephant compound...)

Since Spider is another name for the Alfil-Dabbabah compound, it's not very likely to happen.

But with Spider also in (sparse) use for the Manticore, it's not totally out of the question…


Man and Beast Overview and Glossary. Table summarising what piece characteristics Man and Beast articles cover, with glossary of terms used to describe pieces.[All Comments] [Add Comment or Rating]
Bn Em wrote on Mon, Mar 25 04:39 PM UTC in reply to Niels van Ham from 09:23 AM:

4D has at least two more symmetrical tilings: Xyrixa‐prism (a line of boards each of which has the same topology as Tetrahedral Chess or OctHex), as well as one that continues the Hex–Xyrixa–??? line which I've wondered about for a while but have never looked into in enough detail. There might also be one or two more in the class of the following.

There is also one more 3D one that Charles never explored (and noöne else seems to have used either), the bitruncated cubic honeycomb. Which corresponds to the other close‐packing of spheres that the Xyrixa geometry doesn't cover.

Unfortunately Charles hasn't been seen here since 2016, so even if he were interested in 4D (which he stated several times that he wasn't) it's unlikely that he'll do much on that front. And even there, the Hybrid Diagonal stuff is already kind of pushed into more‐or‐less expansion article territory.

If you're really interested, of course, you can devise some names yourself :‌)


Grand Apothecary Chess-Alert. (Updated!) Very large Board variant obtained trough tinkering with known games.[All Comments] [Add Comment or Rating]
Bn Em wrote on Wed, Mar 27 12:17 PM UTC in reply to Aurelian Florea from 10:27 AM:

Can confirm it's not showing up; the ID seems to be requesting /graphics.gif (which of course does not exist) rather than /graphics.dir/alfaeriemisc/compounds/wzebrawazir.gif as expected


Piececlopedia: Okapi. Members-Only Moves as Knight or Zebra.[All Comments] [Add Comment or Rating]

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Xodohtro Chess. Members-Only Inverting some of the rules of orthodox Chess. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]

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Quadrhombic Chess. Members-Only Orientation of four board sectors is changed. (Cells: 64) [All Comments] [Add Comment or Rating]

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@ Bob Greenwade[All Comments] [Add Comment or Rating]
Bn Em wrote on Wed, Apr 3 03:40 PM UTC in reply to Bob Greenwade from Mon Apr 1 02:59 PM:

As notorious as I am for getting things backwards

Looks to me like you've done it again… ;‌)


Bn Em wrote on Wed, Apr 3 04:13 PM UTC in reply to Bob Greenwade from 04:02 PM:

face blowing a raspberry

That's also a good use of the extended‐ASCII range: ⟨:‌Þ⟩ (as opposed to the playful ⟨:‌P⟩)


Buzzy Bees. Members-Only Bees at war on a hexagonal grid. (Cells: 127) [All Comments] [Add Comment or Rating]

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Centaur. Moves as Knight or Man. AKA Crowned Knight.[All Comments] [Add Comment or Rating]
Bn Em wrote on Sun, Apr 7 08:17 PM UTC in reply to Jean-Louis Cazaux from Sat Apr 6 12:20 PM:

With the height (if not the style) of the headgear (and in the first image the barely‐noticeable arms), my first thought was rather of the Lamassu (a creature yet to be graced with a place in a CV)

But I agree it's probably the most centaurine piece model I've seen so far


Bn Em wrote on Mon, Apr 8 03:30 PM UTC in reply to HaruN Y from 05:29 AM:

The term ‘Lama’ he uses for that is a religious title (incl., f.ex., the Dalai Lama); as best as I can tell the word is totally unrelated


ogi. Missing description[All Comments] [Add Comment or Rating]
Bn Em wrote on Wed, Apr 10 11:04 PM UTC:

One last detail: traditionally what you've put under Movement in the rules section is what the Pieces section is intended for. Whether you want to append it to that section as is or interleave it with the images is up to you.

Once that's done, this looks otherwise ready for publication


Advanced Chess. Pawns move in a similar fashion to the pieces they start in front of. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Bn Em wrote on Fri, Apr 12 05:48 PM UTC in reply to HaruN Y from 02:24 PM:

I think the use of ‘leaping’ where the other pawns simply ‘move’ suggests that they do, in fact, leap (making your diagram accurate)


Locusts. Simple chess variant with only two set of pieces on each army. (12x12, Cells: 144) [All Comments] [Add Comment or Rating]
Bn Em wrote on Mon, Apr 15 10:34 PM UTC in reply to Florin Lupusoru from 05:30 PM:

It could have been made clearer, but it's not so difficult to find: locusts spawn in the square vacated by a moving king, or result from the demotion of a capturing Leo


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About jokers in large Board Games[Subject Thread] [Add Response]
Bn Em wrote on Sat, Apr 27 04:06 PM UTC in reply to Aurelian Florea from Fri Apr 26 05:29 AM:

I'm thinking that this is because there is not a lot of experience in games with jokers.

At least in my case that's very much the reason; in principle the dicussion is very interesting (especially since a game I've been thinking about would involve a closely‐related, if potentially even more powerful (though less apparently‐random) piece)

My impression is that jokers are a bit like Querquisites and Smess/Ivory‐Tower pieces, in that they depart substantially enough from normal Chess dynamics that they'd take a good bit of learning to handle. And in their particular case, the art of dealing with them is in part (principally?) the fact that they reduce the value of strong pieces, especially if well placed: you can't freely move the queen if there's a joker ready to copy its move while still being worth (on average, presumed — though of course this ‘chilling’ effect increases its value correspondingly to the powerful pieces on the board) less.

I'd be interested to see how Jokers handle in games with (a small number of) really powerful pieces. I'd almost predict that capturing the jokers to free the power pieces (with maybe some judicious moves by the latter in between either while the J is still hidden in the setup position, or to give check) would be an important middle‐game theme.

But in any case for now you're probably one of the people here with most experience with the J :‌)


Constabulary Chess. Chess on an 8x10 board with compound piece types added. (8x10, Cells: 80) [All Comments] [Add Comment or Rating]
Bn Em wrote on Wed, May 1 12:57 PM UTC:

Reading over this again, I have to agree Warmachinewazir still sticks out as an incredibly clunky name; since you already have Ferfil for the piece whose image is named Elephantferz, why not the corresponding (albeit apparently thus far confined to Gilman) Wazbaba?


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Constabulary Chess. Chess on an 8x10 board with compound piece types added. (8x10, Cells: 80) [All Comments] [Add Comment or Rating]
Bn Em wrote on Thu, May 2 10:56 PM UTC:

@Kevin:

I'd missed/forgotten that particular objection to Wazaba/Wazbaba, and I do agree that if you don't like it then you ought to be free to not use it (though my search for the ⟨Wazaba⟩ form did turn up your own 4 Kings Quasi-Shatranj, for what it's worth). Though for what it's worth, alternative piece names for Orthochess pieces rarely become less idiomatic English, and as H.G. notes it's not the proliferation of names as such that's the issue here

I think there were only four games (the four I left, for now, unpublished: Accelerated and Unaccelerated Constabulary/‐ble Chess/‐spiel) using this name, and only once each; the WMW Chess/‐spiel setting files are of course more unfortunate OK never mind, I forgot about WIP's, but even there besides the WMW games the only other usage seems to be in Bureau‐Spiel, so only 5 mentions total excluding eponymous games

I'm fairly sure the sometimes awkward names of some more obscure pieces are part of what turned people off M&B (though even then, under C I only spot Canvalander, Cardirider/‐lander/‐runner (of which the first as Cardinalrider is relatively uncontroversial), a couple of Camel‐ pieces (all relatively obscure), and Cbehemoth/Cbuffoon/Cmutilator for (cool but almost wilfully awfully‐named) Brook‐style pieces — more than average, sure, but he names more pieces at all than average and most of these are fairly obscure, used only by himself if at all). The criticism applies validly there too (with different mitigating factors)

Most 3‐word compounds in English (‘whatsoëver’, ‘notwithstanding’, ‘albeit’, ‘inasmuch’, ⁊c.) tend not to be nouns ;‌) Or much of anything except moderately obscure grammatical particles. And nor is it a productive way of producing new words; they're all lexical fossils of sorts

In any case I personally won't insist too hard on the name; it's clunky, and in apparently the majority opinion unnecessarily so, but you seem to be very keen to keep it for whatever reason and ultimately the freedom to pick names (at least up to generating confusion) does stand

@H.G.:

Wazbaba is Gilman's spelling; I'd never noticed that most others uses lack the first b (and had thus assumed Haru's was a typo). As a wazir–dabbaba portmanteau I definitely prefer it with both ⟨b⟩s myself

@Bob:

Whilst I'm not as hardline as Jean‐Louis regarding ‘Aanca’ (for better or worse, it did build up a small history of use for W‐then‐B and imo at least in the context of variants from that time retains a little validity), I fail to see the wisdom in compounding the confusion (especially with an already‐controversial name) by assigning it to yet a third (especially so closely‐related) piece. If not ‘Godzilla’ for Gryphon+Rhino, there's always Gilmanese ‘Gorgon’ (used also by Frolov)

@Jean‐Louis:

I think Betza's error in Bent Sliders was not so much one of interpretation as one of judgment ;‌) He knew perfectly well it was “Spanish for [the piece with English name] Gryphon”


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Morphomania. Members-Only Morphing wherever you look. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]

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Checkmating Applet. Practice your checkmating skill with fairy pieces.[All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, May 4 11:17 AM UTC in reply to Sergio Pimentel from 04:31 AM:

with D2 rather than D7 that rises to 159


Honorable Horse. Moves forward as a Knight.[All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, May 4 11:31 AM UTC in reply to A. M. DeWitt from 02:18 AM:

My interpretation was that the forward‐only thing was just a pragmatic way of ensuring offensive play, sort of like a primitive cousin of the jeu forcé. Much in the same way as Draughts/Checkers has FO pieces.


Morphomania. Members-Only Morphing wherever you look. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]

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Crossroads. Crossing the diagonals generate figures. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, May 4 12:17 PM UTC:

So if I understand correctly, the diagonals thing is just the procedure for how you've generated what during gameplay is a static morphing table? Rather than having any dynamic effect during gameplay

I don't understand the morphing to Chancellor on d4, d6, f4, and f6; surely by this game's logic that would be a Queen morph, as it's on a diagonal with Rook and Bishop? (Which would mean that the Chancellor would not appear at all)


Morphomania. Members-Only Morphing wherever you look. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]

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Crossroads. Crossing the diagonals generate figures. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Bn Em wrote on Thu, May 9 02:36 PM UTC in reply to Gerd Degens from 08:27 AM:

Are you really sure about the name ‘Kinginv’? Why not ‘Commoner’, ‘Man’, ‘Prince’, ‘Guard’, or any of the other established names for a non‐royal K?


Constabulary Chess. Chess on an 8x10 board with compound piece types added. (8x10, Cells: 80) [All Comments] [Add Comment or Rating]
Bn Em wrote on Thu, May 9 02:53 PM UTC in reply to Kevin Pacey from Sun May 5 11:41 PM:

I did notice some 3 English 'words' in 1 that are nouns that Gilman coined, especially in his second section with words beginning with C (towards the end of that section).

You mean the likes of ‘Coviewingspot’/‘Cowingnut’/‘Coworkload’? Maybe I'm counting differently (I wouldn't tend to count prefixes like ‘co‐’ which are part of most names on that page specifically, otherwise ‘Antidisestablishmentarianism’ (at least 6 segments — and in fact a noun!) would carry precedent; hence I wouldn't really consider ‘counterclockwise’ an example either) but I still only consider those two‐part compounds at heart. Which leaves the likes of ‘Coupandup’ which might be the only true 3‐part compound (plus suffix for 4) on the page as far as I could tell, but still isn't really a noun as such. And really shows the desperation of finding unique names for such a wide range of pieces (and in particular the many possible 3D leaper compounds which are unlikely to see practical use)

Please let me know sooner or later if I should do name editing all the same

If you've since found a name you like acceptably well in comparison to WMW that'd probably be best; if you still strongly prefer WMW I'll leave it at that and publish at least those four (and the others, failing some other major oversight)


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Accelerated Constable-Spiel. Chess on a 16x8 board with an assortment of pieces. (16x8, Cells: 128) [All Comments] [Add Comment or Rating]
Bn Em wrote on Sat, May 11 02:00 PM UTC in reply to Kevin Pacey from 03:44 AM:

Apologies, I'd meant to publish the Accelerated games alongside the regular(?) ones but apparently neglected to actually hit the update button.

That said, the links in particular are a welcome addition which arguably the other pages would benefit from too if you're not too averse to adding them


@ Bob Greenwade[All Comments] [Add Comment or Rating]
Bn Em wrote on Mon, May 13 03:08 PM UTC in reply to Bob Greenwade from Sat May 11 05:54 PM:

Aand you've rederived these pieces as a back‐formation ;‌) These are the original (long‐ and short‐, respectively) non‐helical switchback rhinos as proposed by Gilman (and independently by KelvinFox).

Actually never mind, these are two of Gilman's four: Long‐switchback Rhino and Short‐switchback Mirror Rhino. The other two move the same but with the non‐alternating step first.

Note incidentally that Gilman's ‘rhino’ is this one (specifically the sliding version), not the (modified) GA one as popularised by Jean‐Louis (hence why both forms are referred to by that name). The fact that both begin W‐then‐F is coïncidence

Also (belated) Happy Birthday :‌)


Unnecessarily Complicated Chess. Members-Only Why do things the easy way, when doing them the hard way is so much more fun? (19x23, Cells: 423) [All Comments] [Add Comment or Rating]

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Monster Mash. (Updated!) Armies consist of classic monsters and scary creatures. (13x13, Cells: 169) [All Comments] [Add Comment or Rating]
Bn Em wrote on Mon, May 13 03:12 PM UTC in reply to Bob Greenwade from 02:16 PM:

I think the [vulture] is an invention of Lev's

I thought it was from Aurelian's Grand Apothecary Chesses?


Grolman Chess. Game with sequential movement of pieces of the same color. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Bn Em wrote on Mon, May 13 03:39 PM UTC:

This seems like a really cool idea from the late Problemist

As far as admin is concerned, I assume it desirable to have a link to this as Kazan Chess (the original name), and to credit Grolman as the inventor? Since it looks like you've done a bit of filling in the details, it's at your discretion whether you wish to take coïnvention credit.

Since it originates as a problem theme, two further questions arise:

  • How does it actually play as a game? I imagine it's very different in flavour from Orthochess but I wonder whether it might tend to be a bit chaotic.
  • Would it be worth including a problem or two on this page? I don't know if there would be copyright issues with including the original 1995 Problemist composition, but your Mate in 2 is pleasantly illustrative

I imagine there are more interesting ways to resolve the Castling issue than simply disallowing it outright (other pieces either have to fill both vacated squares where possible, or just the king's one as Castling seems to be a K move by problem convention (see the discussion of Half‐Neutral pieces in the same Problemist issue), and we could consider a K or R unmoved if it has only moved involuntarily), but this solution works too


Bn Em wrote on Tue, May 14 01:52 PM UTC in reply to Вадря Покштя from 06:10 AM:

Here is a link to Grolman Chess on Wikipedia (in Russian)

My Russian is alas extremely limited (i.e. isolated words), but it does look like about as much detail as in Problemist, i.e. extremely sketchy.

Regarding castling. It is not prohibited, but simply impossible. During the game there cannot be a situation where there are no pieces for castling between the king and the rook. The chess pieces are in a constant state of movement. Either the king or the rook will definitely make a move by the time the opportunity for castling arises.

Depends on whether you count moves made only automatically as K/R moves. Otherwise the following sequence of White moves, f.ex., would position the white K and K‐side R appropriately:

  1. e4(Ne2,Rg1)
  2. Ng3(Be2,Rf1)
  3. Bh4(Ne2,g3)
  4. Bg6
  5. g4(Ng3,Qe2,Kd1,Re1)
  6. Nh1
  7. Ng3(Rh1,Ke1,Qd1), ending in this position

Hardly a good sequence of moves, even if Black allows it, but neither K nor R have made any voluntary moves and the space between them is empty. A matter of opinion perhaps whether this kind of edge case is worth catering for.

Of course, there are various extended forms of castling in use (general two‐space K move, or Fischer Castling) which might be considered appropriate for a game even though it's not conventional in the Problem world, but it makes sense that at least the canonical version would forgo this.

The game is absolutely playable and is not chaotic at all

Pushing pieces around trying to contrive the above sequence leads me tentatively to agree, though of course nothing would substitute for actual play

I don’t know whether it’s worth including Grolman chess problems in the description of the rules

It'd be perfect for the Notes section, though ;‌) And whilst it's less common nowadays, there are plenty of pages here with illustrative problems or example games; I believe that kind of thing is still considered a positive


Bn Em wrote on Tue, May 14 01:52 PM UTC in reply to Jean-Louis Cazaux from 12:09 PM:

Now that you mention the possibility, it does bear a certain resemblance to one of the mechanisms in Regimental Chess (we have a link page but the link is broken; you're better off doing a web search and checking out some of the videos they made) exactly for this purpose.

The difference there (if I remember correctly) is that like pieces follow like, rather than always going in order of strength or allowing free choice. And it may or may not be optional there.


Bn Em wrote on Wed, May 15 12:54 PM UTC in reply to Вадря Покштя from Tue May 14 02:20 PM:

if a move is made with the king or rook

The ambiguity lies in how exactly this is interpreted, and in particular whether passive moves (here, f.ex., being dragged along by another piece) count.

There is precedent in the very Problemist issue this variant was introduced in: Petkov's discussion of ‘Half‐neutral’ pieces includes an exaample where a HN R in white phase (see the article for further details) can castle with the white K, implicitly without changing to its neutral phase (as would happen if the R moved on its own) and thereby giving check; thus at least in that context Castling is explicitly treated as an K move which only incidentally causes the R to change position too.

Standard Chess leaves this kind of situation entirely unspecified as relevant situations can never arise: the only (potentially) passive move is castling, and once that's happened the K has moved and so further castling is prohibited.


Bn Em wrote on Wed, May 15 12:54 PM UTC in reply to Jean-Louis Cazaux from Tue May 14 08:43 PM:

In Grolman/Kazan Chess, if a piece moves from a square where it is protected, the protecting piece follows. In Regimental Ch., from what I remember (I saw a video several years ago), if you move a piece protected by another piece of the same kind, the protector may follow. In both games this applies recursively so pieces can form chains.

So instead of the weakest available piece, it's only pieces of the same type (or maybe pieces that share moves?) that can form these kinds of chains.


Electro Chess. Members-Only Every piece has a charge, every square is an electric field. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]

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Crossroads. Crossing the diagonals generate figures. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
Obento Chess. 12x12 Chess variant with Shogi-style promotions and bent sliding pieces. (12x12, Cells: 144) [All Comments] [Add Comment or Rating]
Bn Em wrote on Fri, May 17 10:34 AM UTC:

Note incidentally that whilst the plated Pashtuns lack any kind of established images, the riders had enchanced R/B images (see top of second diagram) associated to them by Gilman. A matter of taste of course, whether you see them as plated first or riders first. And of course these images haven't been converted to SVG either


Bn Em wrote on Fri, May 17 10:47 PM UTC in reply to Jean-Louis Cazaux from 11:00 AM:

Of course, makes sense that Eric would've already been using such images; I haven't got round to trying Ai Ai yet so I hadn't seen them.

Though in any case I should maybe try my hand at doing some of these SVG conversions one of these days; there's still a few images (particularly these and the move‐based Bent Rider ones) that I quite like and haven't yet made it into SVG


Rook. Moves across unobstructed orthogonal line.[All Comments] [Add Comment or Rating]
Bn Em wrote on Mon, May 27 03:27 PM UTC in reply to HaruN Y from Sun May 26 01:05 PM:

You could argue that the Lance/Incense Chariot is the ‘true’ Rook of Shōgi, seeing as the Flying Chariot is a later addition. Which makes it as consistent as the King


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