Rated Comments

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?

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.

Here's an animation of the game:

https://lichess.org/study/WjUgZzpG

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

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

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).

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...

Fun idea! Might I suggest the name ChiMPs?

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

Greetings, Thanks for doing this website. I don't see Commander Chess or Cờ Tư Lệnh in Vietnamese. This is not to be confused with the Vietnamese Chess listed here for zillions of games. Commander Chess was designed By Colonel Hải Nguyễn Quí and released in 2010. I think it's been adopted as the official Chess of Vietnam.

It's a modern warfare, sort of XianQi variant. Uses tanks, aircraft, a navy. Here's a link to the BGG for it:

https://boardgamegeek.com/boardgame/191203/commander-chess

The Colonel has been trying to share his game with the world and I know for a fact they are about to release a new Commander Chess game set and online/mobile platforms to play online as well.

I wish this game were more popular. It seems like an excellent design. The piece selection seems strange at first but after thinking about it I can see the beauty of it.

I imagine the aanca could have originated as an enhanced ferz, to go with the bigger board. Then the knights could have become unicorns by gaining a diagonal slide after their leap to complement the aanca. The crocodile is a fairly obvious addition. The giraffe and Lion both make knight-like leaps, suitable for the large board, and the Lion includes and extra 3,0 leap which removes it's color binding and forms a nice looking pattern.

The result of all that is eight pieces with a nice range of power and an aesthetically consistent set of moves. There are all of the 2,1 3,1 and 3,2 leaping moves, the rook and bishop moves, and bent rook and bishop moves (unicorn and aanca). The leaping pieces are differentiated in power by some of them having additional movements, but they don't ever feel like arbitrary combinations.

The initial setup is also elegant. The Pawns start as far apart as they do on the 8x8 board, and the pieces are all on the back rank. The promotion rule fits well with this setup and is another great innovation.

I think the main weak points, if there are any, would be the pawns and the king's leap. It seems unlikely that the king would benefit much from a 2 square leap on such a big board with so much empty space; and perhaps modern pawns would be better. But overall this variant appears to be carefully designed.

I like this, it brings out a rural realm to the game. Well done!

Having implemented this variant in Ai Ai and having played it a bunch of times, I really enjoy this game. Being a large Shogi fanatic, the higher piece density of Yangsi doesn't bother me in the slightest :)

For me this game is an improvement on something like Sac Chess, as the pieces in Yangsi are more interesting to use. In fact I was inspired by this game to make what I called 'Heavy Shako', an extension of Shako that fills in all the gaps in the back rank with other pieces used in the larger variants by Jean-Louis Cazaux. The original concept was much improved by some excellent advice from Jean-Louis, and the resulting game has been a lot of fun.

I'd enjoy seeing an extension of Yangsi to 12x12 with a high-density setup, too.

I have played this game extensively in the Ai Ai software package since adding it, and I feel it may be the best iteration so far of Jean-Louis Cazaux's series of 12x12 variants. The piece density and variety generate very interesting interactions on the board. The various Pawn- and Pawn-like pieces in the 3rd/4th ranks create a nice sense of progression, leading the board to gradually open up and allow more powerful pieces to enter the fray.

In a sense, the game reminds me slightly of a Chess equivalent to Dai Dai Shogi, which has a long opening phase that gradually expands into a delightfully complex middlegame. As a fanatic for large Shogi I consider this a plus :)

In any case, I highly recommend this game for fans of larger variants. In the future I hope Maasai might generate some similar developments of Gigachess and Terachess as well. I have experimented a bit myself with adding the two ranks of mixed Pawns to those games and the results were quite enjoyable.

The idea of introducing two waffles (phoenixes) on a Capablanca board is a very interesting one. But the main drawback proved to the author to be finding a position where all pawns are defended in the initial position. This leads to a sole position where the waffle and knight share the best first move development field. To this gets in a way of the usual castling. To counter this a new way of castling is introduced. I don't like that because it requires to little effort creating a new problem of it's own. I'd approach this by offering the knight the forward fil moves when unmoved. Probably with just move power. This will help the knight further to the center without hindering the waffle's development. It can also go the other way around offering the field towards the center to the waffle by allowing it the two forward wide zebra move. This has the advantage of having the knight on it's orthodox chess spot after it's initial move, so orthodox chess openings can be used. This would help the game become more popular among regular chess players. Both solutions seem to be better than an arbitrary castling rule.

Adding the modern elephant on a Capablanca board is a very nice idea. I'd suggest adding an fil move to the knight's first move, preferably a just move power, so that it can occupy it's regular place in the orthodox chess repertoire. But I don't see this as a problem more as a small enhancement, maybe, also motivated by the fact that the knight in this game starts so far from the center. Overall an excellent game!

Adding the frog on a Capablanca board is a very nice idea. I'd suggest adding an fil move to the knight's first move, preferably a just move power, so that it can occupy it's regular place in the orthodox chess repertoire. But I don't see this as a problem more as a small enhancement, maybe, also motivated by the fact that the knight in this game starts so far from the center. Overall an excellent game!

A very well thought and pleasing out blend of a Capablanca's Chess and Shogi. I am curious about the rule against having identical promoted pieces other than promoted Pawns. I consider it a small wart on a otherwise perfect design.

I like the Stars, they present a naturally digestible identity, in keeping with the elementary makeup of Classical pieces. I would have invented a more relatable name for them, perhaps 'Sheriffs' or, something you know, that has a real life character, but nevertheless I praise you for their design.

Nice work.

I've only played this once, but it feels right somehow. The hexagonal board, oriented horizontally like this, gives a distinct chess experience that square boards generally lack. It feels more natural than square shogi to me.

I came on this page by accident. After so many years, the name of this game is still wrong. It is Doushouqi, not Shou Dou Qi at all. And the comment about jaguar for leopard is absolutely right. The solution to avoid a L is to call this piece a Panther, panther or leopard is the same animal.

This seems like a nice variant. I especially like the 32221111Q movement of the pawns. The falcons/bison are also fun to play with, their long leaps make for nice tactics.

Pretty much the only thing I'd change is that castling leaves the King too close to the middle. Instead, I would make it so that castling results in the King and the Rook swapping places (White king can go to b1 or i1, black king can go to b10 or i10; rook always goes to the f file) as this gets the King 1 space away from the corner. This would also fix one of the gripes I have with regular chess: queenside castling is usually terrible. Opposite side castling often leads to fun games, so making it happen more often seems like it would be desirable. Also, it would allow players to castle by moving the Rook first, as the ambiguity between O-O and Rg1 is removed.

This is an interesting and logical approach to tackling how to have a double-move variant addresses pesky rules like check and en passant.  They always require special-case rules to address, and how it is addressed here "feels" right to me.  Marseillais Chess handles the check thing fine, but falls down on how en passant is handled.  You seem to have neatly solved that, too.  I also like how you are limited to one capture per move and cannot move the same piece twice.  This also helps to preserve the strategical similarity to orthodox chess. I guess Marseillais is more of a "let's make double moves and we'll end up with an interesting but totally different game."  Originally, it wasn't even "balanced" (white started with two moves.)  This is an ambitious attempt to add the property of double moves games being "balanced" while changing as little else about the game as possible.

Extra Move Chess also provides similar benefits.  You can make a second move, but don't have to, as long as it doesn't capture or move a piece that just moved.  If you make a second move, it can be a two-space pawn move (which a first move can't, except for white's first move of the game.)  This also neatly solves check and en passant.

I'd like to add this to ChessV.  I think it's doable but I need to think some things through.  The thing I see that most concerns me is this:

Each position created by a two move turn is included in the count toward a draw by threefold repetition, or toward a draw by the Fifty move rule (or the Seventy-five move rule)

If I understand this, it would be difficult to implement and doesn't make a lot of sense to me.  Are you saying that any move in a single move turn or responsive move turn should not count towards the 50-move rule, nor should they be counted toward any potential repetition?

This is a great concept for an army! I like how the Vouivre encourages tactical play with its forking capabilities and ability to do nasty smothered mates, while the Geese are more focused on strategic pawn play in the endgame; similar to how the tactical Knights and the strategic Rooks provide a variety of viable playstyles in the Fabulous FIDEs.

In your opening line, 2.Vg5 doesn't work because of Qxg5.

PS: If you're willing to upload this army to ChessCraft, I'd be happy to playtest them alongside my own Starbound Sliders.

Edit: Upon closer inspection, this army is actually very weak.

• Ouroboros: 2x5pts Although the Ouroboros is about Rook strength, it's the only one that's as strong as its claimed to be.
• Roc: 2x3pts+0.5pts colorbound pair bonus The Roc is colorbound and has limited range, making it weak and finnicky even by minor piece standards. Complicated maneuvres are less viable when the board is full of pawns, which further highlights the Roc's difficulty in movement. It is definitely not as strong as a Rook, though its ability to reach 12 squares means it may be slightly stronger than a Knight.
• Flying Goose: 2x1.5pts The Flying Goose has very little value, and also gives the Beautiful Beasts the very annoying trait that they can't castle without moving one of the three Pawns that will be in front of the King (unless they castle queenside and mave the a pawn). Granted, the Flying Goose is little more than a slightly stronger pawn anyway, but still.
• Vouvire: 9pts The Vouvire is reasonably strong for a Queen equivalent and it's great for tactical play, the problem is that there's nothing to play tactically against. Knights are fun to use because they're the weakest piece in the army (so when they fork something, you're in business!) while the Vouvire is the strongest piece so it can't fork anything that's protected. Also, it can't go to any of the 8 adjacent squares, which makes maneuvering on a crowded board surprisingly difficult.
• Total: 28.5pts CwDA armies typically range from 31.5 (Fabulous FIDEs) to 33.5 (Nutty Knights) with more complicated armies needing more value.

This appears to be a fine variant, in spite of the 2 unprotected pawns per side in the setup (that kind of helps make up for the 6 ranks distance between the initial pawn ranks, actually).

@ Greg:

Hi. One player mentioned to me that this preset doesn't seem to work perfectly. Namely only two-square K move to castle either side (i.e. not three-square K move to the queenside) has been allowed by it. Also, capturing by en passant isn't always allowed, I guess meaning if a 3-step pawn move is made by the opponent. Has this preset been tested for either of those possible problems? If not, please fix if you can, at your leisure.

K

The quality of the page has not been improved in more than one year. If everyone is happy with that, fine.

For as long as I have known about the games with the Rook-Knight and Bishop-Knight added, I have agreed that adding just them unbalances the game even further towards the line pieces than Chess already is. This is the main reason I have made an alternate history where Capablanca looks outside of the modern descendants of the Western tradition for help in designing his proposed “next stage of Chess”. I made him look all the way to Japan simply because the first place I had thought to post the idea was the 81Dojo forum. However, the other idea I have always had was that he would simply invent a “Great Carrera” with the missing pieces (King-Knight, Queen-Knight and two step Knightrider). This game would have been possible to play with the King-Knight, two step Knightrider or Rook-Knight doubled if the players wanted.

hi

I've played the heck out of this via Ai Ai, and I absolutely adore this game. I prefer the greater piece density and the more interesting piece mix here to those of Grand Chess. The resulting play is interesting and nuanced both tactically and strategically. In my opinion Opulent Chess is one of the finest 10x10 variants.

My one complaint is the presence of Pawn promotion by replacement, but that's not particular to this game, I just dislike it everywhere. Promoting stuff is fun and interesting, so I prefer just being able to promote to any piece without restriction. After all I'm a Shogi player, and what can I say, we like promoting stuff! I also dislike some of the weird effects the rule can produce in rare circumstances, but that's more of an aesthetic objection. I do like the extended promotion zone though.

On the whole, a delightful game. Strongly recommended to anyone with an interest in decimal variants.

I've been playing a lot of this game recently (via Ai Ai), partly for my own enjoyment and partly as inspiration for my own 16x16 experiments. There are relatively few modern Chess variants played on 16x16, and for me, this game is the best example thus far.

The variety of pieces presented here is at first intimidating, but one soon realises there is a logic to everything presented here, and shortly thereafter you'll find the piece movements become natural. The balance of the initial position is excellent, with every piece finding its way into the fight without too much awkward development. Games are long -- against AI at 2 minutes/move my games take at least 400 plies, with my longest so far at 695 -- but as a large Shogi variant fanatic this doesn't bother me at all. Throughout those long games one will find drama, excitement, and plentiful opportunities for subtlety and subterfuge.

If I were very picky, I might say that I'd like to see the Rook + Camel/Bishop + Camel compounds in here, which I find really fun on a large board. Also the basic leapers -- Camel, Giraffe, Knight -- feel less impactful in a game this size. Having said that, everything works well together, and I enjoy this game tremendously.

But why the limitation to set up queen and archbishop on different coloured squares, when they can change the square colour by moving like rook resp. knight?

What If They Castle Do they Tell you?

Is there any .ZRF file for this game?

great article , this is definitely one of the best for young chess players to read and learn strategy.  If you intend on writing more similar content on this site be sure to check out our page with more inspiration for future posts

great article, this is definitely one of the easiest strategies for young chess players to skim through and learn. Might also interest for more Superhero Chess Sets see this page [spam url deleted].

Big thanks to Malcolm Webb for programming the zrf for this game! I would like those who download this to know that as of this date in 2022, I have updated the rules to Ito Shogi drastically, while the rules of this zrf file are based on the 2007 rules.

The Wolf is ranked higher (stronger) than the Dog.

https://zh.wikipedia.org/wiki/鬥獸棋

象>獅>虎>豹>狼>狗>貓>鼠

Elephant > Lion > Tiger > Leopard (Panther) > Wolf > Dog > Cat > Rat

I played this since childhood. This is the proper ranking of the animals.

The confusion about Dog > Wolf happened because on some of the cheap chess pieces, the wood carving of the Dog and the Wolf are almost identical.

I love the concept of spherical chess. I think one thing needs to be changed, however. Chess is already drawish enough on a square board, and more so on a round board. On a spherical board, where pieces move in all directions, draws may become the overwhelming norm. That is not my preference.

So, on a board like this, I would love to see something done about that. Possible ways to do it would be to put some restrictions on the movement of the King (as in XiangQi and Janggi), or to immobilize the King when in check, or to take away the King's ability to capture pieces, including attacking pieces.

https://samiam.org/chessv continues to host the ChessV software, and, indeed, has been updated to have version 2.2 of ChessV. Should chessv.org ever go down, this is an alternate download link.

A while ago, I looked at 31 possible short range pieces. I have now expanded this research.

I have written a small C program which looks at all 16,777,215 possible leapers that move at most two squares. Some findings:

• I expected around half of all possible pieces to be colorbound in some way. Wrong. 16,452,080 (over 98%) pieces are not colorbound.
• There are 104 non-colorbound pieces with three moves, 2,512 pieces with four moves, and some 2,696,337 pieces with 12 moves.
• Only 2,944 possible pieces are Bishop colorbound: These relatively few pieces can go to the same 32 squares a Bishop can go to.

With some 16,452,080 non-colorbound pieces, if we replace the knight, bishop, and queen with a random non-colorbound short leaper, that gives us 4,453,099,898,116,838,912,000 which is, what, 4 hextillion possible variants, and that’s keeping the king, pawns, and rook.

OK, if that’s not enough possible variants, we can also add the ability for a given random piece to be able to be a rider in any direction it can leap (e.g. a fers-rider is our bishop; a wazir-rider is a rook, and a knight-rider is, well, a knightrider), where we randomly choose, from all the moves a given leaper has, for it to be able to ride in a random number of directions. For example, if we look at the wazir, then randomly choose which directions it moves like a rook and which directions it can only move one square, we get 16 possible pieces. If we do this for all 16,452,080 non-colorbound short range pieces, we get some 282,232,643,280 possible pieces, just over 2 to the power of 38 (2^38 or 2 ** 38 in Python notation).

This means an 8x8 board with random non-colorbound pieces and using a standard chess set has some 6,344,961,231,517,063,209,074,884,200,517,463,972,290,560,000 possible variants (the pawns and kings can keep their moves), just over 2 to the power of 152.

The Heroine and Popess piece types in this variant arguably (nicely) complete the combination of compound pieces I used in my own (earlier) 10x10 Sac Chess variant.

On the topic of piece names, I've noticed that in some languages the name for a chess rook translates to ship (or to boat, also). Thus 'Admiral' (or my choice of 'Sailor', in Sac Chess) gets bonus points as a choice of name, perhaps (for the piece type in question, a promoted rook in shogi), i.e. a person who uses a watercraft's power.

Maybe there's a slightly related argument that a real-life knight, in the past, is a person who uses a horse (arguably knight is a more elevated title than horseman, which would also work).

https://en.wikipedia.org/wiki/Rook_(chess)#Name_translations

I think one thing the author may do until when and if this variant gets formally published here is to make a Zillions of Games implementation of it, then send an email to Ed van Zon to get the implementation published. There can be a long delay before a submission and its publication here, but Ed’s pretty good about publishing a submission within a week of its submission.

The hard part is taking all these rules and converting them in to Zillions’ quirky language. I enjoy doing it myself; it converts rules in to unambiguous machine-readable rules, and it allows people to play the variant themselves.

I would also change the name of the summoned pieces in to something like, oh, Dragon Horse and Dragon King, the Anglicized form of these pieces’ names in Shogi. I like the summoning tactic, but it’s an open question whether having it makes the White advantage overwhelming. People seem to enjoy Crazyhouse a lot over at Lichess, so I think this summoning mechanic can be very usable.

(I should also point out that Betza called what is the Jester here the “Waffle”)

i think so

Just over twenty years after the initial publication of this page, the first ever computer implementation of Nemoroth is live, complete with a basic alpha-beta pruning AI. You can play in your browser at this link: https://azgoroth.itch.io/nemoroth

The only thing I haven't implemented is the Go Away push order, which I've been putting off due to how laborious the UI considerations are. As a placeholder, Go Away pushes are clockwise from top.

I originally wrote this implementation in TypeScript, but the AI was too slow and I ported it over to C++ using WebAssembly. I plan on open sourcing it eventually once I have more opportunities to clean up the code. This is one of the most difficult software projects I have ever worked on; I have known about Nemoroth since around 2013 but was not a strong enough of a programmer to pull it off until now.

I found a number of ambiguities in these rules, which I have tried my best to address reasonably on the linked page. Some have been covered in this comments section, some not (for example, if a Wounded Fiend leaves an already ichorated square, does the ichor stack to 11+ plies or max out at 10?).

The AI is surprisingly dangerous. It mobilizes the Ghast immediately and WILL advance it to d4/d5 if you let it, usually costing you the game. I have managed to beat it a few times, but it's tough as nails for how crude the programming is. Beware!

Ralph, if you're out there, thanks for this amazing variant. I tried to email you to get permission to make this but alas, I never heard back.

Marsellais chess has a rule where each player moves 2 pieces in the same turn. Castling is considered a single move. All other castling rules apply.

I have a code to create Piece in Piececlopedia. I’ve taken your template and written my text.

Would it be possible to provide a rule enforcing preset that begins with the "rational" setup with all Pawns on the second rank?

I have a new chess variant idea. 
Before I send it across to you , I have a few questions:

1) If my variant idea becomes popular, is there any way I can get paid for it ?

2) Can chess variant idea be patented ? Can I apply for a patent before sending it to you ? How many chess variants in your site are patented ?

I like the idea of making an army using various combinations of a few building blocks, though I do have two critiques.

1: Balance. A combination piece is usually wirth more than the sum of its parts (eg: a Queen is worth more than a Rook and a Bishop; a Mann is worth more than a Wazir and a Ferz) which means an army with A+B+C=7.75 is likely to be completely overpowered. For example, look at army 1:
BNW=10, NW=5.25, BW=5.25, W=1.25, B=3.25, N=3.25, BN=8.75 (total: 37).
This is over a full Rook stronger than the regular chess army.

The more equal the components are, the more powerful they are when they work together. For example, army 2 (where one component has most of the value) is only about 2 pawns stronger than the regular chess army. So, armies with wildly unequal component strengths will need to have stronger components than more egalitarian armies to compensate for this.

2: The components should be versatile enough to be fun to play with on their own. For example, an Alfil can only reach 1/8 of the board which is un-fun to play (both with and against). One solution to this would be 'ABCD' chess, with 4 components arranged like this:

By adding an extra component, one can eliminate the need for components to survive on their own, and can make weak components without having to worry about un-fun Alfil play.

Distinguished Monsieur Cazaux:

At the end of the rules for my preset of Constructing Chess You can see my brief instructions for erasing an untimed game, and my warning for not proposing or accepting untimed games to or from unknown players:

"Either of the two players can erase the game from the data base of Game Courier at any stage during current play, or can erase a finished game. The operations of drawing or of erasing a game should be done only by AGREEMENT between the two players, or in case of one player having disappeared for a long time in a game without time limit".

"Players should not propose or accept games without time limit, except to or from players whom they know very well".

I only play untimed games with players with whom I have already played many times, players with whom there has been satisfactory conversation via Game Courier or other manners of contact, and players of whom so far I have no justified reason for doubting of their gentlemanship, honesty, and sportive spirit.

Otherwise there is risk of meeting some stupid who may keep an unfinished game hanging, because he is losing, and in his small mind he is not man enough for accepting his defeat. Even with perfectly trustable players, I prefer to avoid untimed games unless there be justified reason. Unreliable Internet, for example.

A game may hang for a month or more due to cause of force majeure. The other player may be suffering some tragic, unforeseen, or overpowering circumstance. He may have had a serious accident and be in hospital. Or in prison. Or in cemetery. Or fighting the War for the Glorious Cause of Independent Ukraine.

Such events happen. In the first case he may be absent for months. In the second for years. In the third, for ever. And in the fourth, I patiently wait for the return of the Hero, if I do not join the Heroic Struggle myself.

For preventing a long waiting time, players are advised not to play untimed games with unknown people.

There is no need of modification to the algorithm of Game Courier. The solution is as simple as avoiding untimed games, except in cases where the other player is fully trustable, or if there be a justified reason.

Or else, erasing a hanging game. But for this, players should make a reasonable effort to ascertain that a long time has passed without reply from the other player, whose whereabouts are completely unknown.

Such cases are rare with me, but they occasionally happen. Fortunately they have not happened to me in Game Courier so far, but they have happened for untimed games in other servers. I follow the policy of waiting for a maximum of about twenty days. Then I try to make contact with my opponent, if possible.

If I have no way to contact him, or if after a few more days I do not receive any reply from him, then I take the game out of my list of current games, if possible I erase the game from the server (in Game Courier it can be done by either of the two players), and I include the name of the missing player in my black list.

If I receive a reply, then my decision will of course depend on the content and trustability of that reply.

After all those important considerations, Monsieur Cazaux, if You honestly believe that a game has been hanging for too long without conclusion, and You have no way to contact Your opponent, or no reply from him, or the reply have not been satisfactory, then You are undoubtedly entitled to follow this procedure:

List all games played in Game Courier by Monsieur Jean-Louis Cazaux (nom de guerre 'timurthelenk'): https://www.chessvariants.com/play/pbm/logs.php?userid=timurthelenk&age=0&sort=age&stat=actfin

You will see that most games are finished from 28th April 2020 to the end of 3rd August 2022 (server time) but there is an untimed game of Fantastic XIII that has been hanging since 31st July 2022. Make a serious effort to contact the opponent and tell him that You are still waiting for his move. If You have reply, then use Your best judgement as to Your correct action. But considering that twenty-four days have already passed, if You have no reply in a few more days (or if You have no contact with him at all, in this case without need of further waiting), then continue to the sad but necessary method for solving these fastidious situations.

Activate the hyper link at the right side that reads 'Delete'. You will see a warning for not deleting a game in progress without a justified reason. If You honestly believe that You have justified reason (and I personally believe that You have), then proceed to delete the game from the data base. For that You will need to enter Your identity or be logged-in, and Your password. Then You will have made a favour to Game Courier. Then You should include the offender in Your black list. Then You should NEVER play an untimed game without a very powerful reason to do so. Finally, You should continue honouring Game Courier with Your presence.

Dixieland for ever ! P. A. Stonemann, CSS Dixieland

Should play well, it's nice to see you didn't 'overpower' it.

Hi Gerd, hope your fine and well. I'm sure you haven't upset or hurt anyone!! I understand what you said, and it is extremely interesting idea indeed how you describe your game about the board etc.

I don't want to go on about the pawns, but still, I have to say, the game would maintain your 'theme' even if the pawns remained pawns. However, the game as you have it must have a unique feel and play to it!

Would be fun to see the game in action.

Inspiring game, yet it seems the action may take a while to get going

I don't yet get how to mobilize in the opening smoothly when playing this CV, at least when I tried to do so in my first game (with White, no less). After I moved the pawn in front of my king two squares, for example, I wanted to develop my knights to my fourth rank, towards the centre, in natural fashion. Yet that would allow Black to develop his deves (camels) similarly, and then to take my knight(s) almost at will - perhaps clearly at least a slightly worse exchange for me, since my pawn structure might be compromised without sufficent compensation when I recapture, and by my valuations (though tentative) a Kt is worth more than a camel on 10x10 (maybe even by as much as a pawn).

As my game (with arx) went on, I found my gold and silver had a hard time being deployed usefully for quite some time - an issue since they can get in the way of other pieces. I also had mobilization issues with at least one of two of my bishops, especially concerning if assuming castling is desirable in general. The assassins I had a hard time valuing, but guessed one could be worth as much as a queen. Maybe the inventor intended that mobilization be slow in playing this CV, I don't know.

@arx: I've sent you a personal invite to a Sac Chess rematch, in case you missed it, and wish to play.

The premise for tri dimensional chess set's presence on federation star ships was to teach three dimensional combat tactics, which is something the Bartmess and Meder rules patently fail to do, by blocking circumventing moves.
The rules presented here, on chess variants, are not complete and lack rules for castling but also advocate inverted attack boards, which, if nothing else, are highly impractical.
Not only were the World Tri Dimensional Chess Federation rules written by a fighter pilot, to teach three dimensional aerial combat, which is more in keeping with the original theme, they also start the king and queen in the centre files and provide the most reasonable method for castling, as the attached images demonstrate.

King's side castling


Queen's side castling

Added Westernized board and pieces for Xiangqi to the Wikipedia article.

File Manager do not work. I have unpublished Orthodia and all pieces’ images are here. But my image of board below the diagram of this board is missing. So before this it wasn’t missing by more than one time. I open File Manager for this page and see “File manager submitted item” — and nothing more! Please fix. Other inserted files of this page are safe and sound. Thank you very much!

Please check my submissions. They are waiting Your look, except for 2 lasts) Regards, Rechefiltr_is_Fire

This is a great idea with those switches. Together with the twisting of the files it makes a very interesting board and game. The switches give instantly the game a dynamic tension which is enjoyable. And a very sophisticated solution that 2 squares together constitute 1 field on which there can only be 1 piece. There is no mentioning of pawn move/capture (maybe it could be helpful), but it must be implied that 'normal' forward movement and diagonal capturing are in place, that will often be first 'battle' around the switches.

What is better than 2 switches? That has to be 4 switches! The inventor, Gerd Degens, has also such a game, Chess69, which can be viewed through the link at the top, or for CVP members through the link in the comments. I will try to make a comment about it later. But I can only recommend to the editors that this game also is published properly. It is even more interesting because here the ranks are also twisted, very delightful for us fans of 'unusually shaped boards'. It already has a old post from 2003 here on CVP with a broken link in the Alphabetical Index and the Topic Index, so that will have to be displaced.

Assistance request for promotion piece in the test applet for chess variants

Hello, I ask our help for understand the correct process for implement the promotion of a piece in this editor: https://www.chessvariants.com/page/MSplay-test-applet-for-chess-variants

I use for example a 12x12 board and i want to make a Queen promotion with pawns in the last rank (white & black) so I set this: Promotion zone (ranks):1 Promotion choice:Q Pieces to shuffle:P

Press Apply Press start position

Unfortunately I try this mode but seems works sometimes only for the a.i. pieces...

I also want to ask how I do for also more type of promotion on the same board? For example always in a 12x12 board I want the pawn-to-queen promotion and add a new one es. the knight-to-amazon promotion, both in the last rank, or the Queen promotion in the 10th rank and the Amazon in the last...

Thank you very much for your support, Best regards.

I like the idea of this, although it seems possibly over-complicated with the momentum rules.

Can Canvasser be Agitator?! In my notation, he is it. Noted as Ç

Can you watch Fluidity please, I can’t add new variants but I have 5+ of them in keeping ready.

So how can I add my piece to Piececlopedia?! If I can;)))

One remark: can you watch Magician’s moves and make diagonal-based motion. And small Shielder’s regulation of replacing rules, but it’s not required for now.

Yeah, thank you very much!

Points are accumulating. I’ve written this in the page.

Sorry, but yellow X-es are captures!

I have an idea: you can turn Ox’s face to left in Stone Garden, as it was in my drawings, and make it different from Horizons. About Index it’s same. Please.

Mister Albillo had his interesting Web pages about his so-called Bizarre Chess stored since 1998 in a free server, but unfortunately, that server went out of activity in the early 2000s.

Then Mister Albillo did not find another server, and he kept for twenty years his Bizarre Chess only with himself, unknown to the World.

Recently he has converted his old Web pages to Adobe Portable Document Format, and re-published them after that hiatus of twenty years.

The old hyper link given by him obviously is dead, but as of late 2022 this other hyper link is working perfectly:

https://albillo.hpcalc.org/files/misc/chesstests

Each page has been made into a different PDF, available for download. There are twenty in total and not heavier than 300 Kilobytes each. They contain astonishing examples of weird situations on the board, and comments made by important authorities.

The old hyper links do not work in the PDFs. Mister Albillo has chosen to preserve the flavour of an era in the History of Chess and Computing, out of a nostalgic feeling for a time that is 'Gone with the Wind'.

The Illustrious Members of Chess Variants will certainly find engaging material in those pages. Especially those of us who love the History of our Noble Game.

No, it’s not easy win, black can easily block the path of check by 1.…Be7 or 1.…Qe7 after 1.Qe2

So it’s not required to add interactive diagram for THIS variant. But if it will be in online chess resource, thank you.

Are there no promotions in this version? Where is the prince and adventitious king?

The way I have always looked at this is that to know whether a square is attacked by the opponent during your turn you should pass that turn, and see whether the opponent then can move there. So the question then is what the turn-pass would do for the movement capabilities of the Joker.

1 seems most natural to me. I would think that passing a turn shouldn't count as moving a piece, so it shouldn't change the Joker's move if it is defined by the last piece moved. In a game that doesn't allow passing, passing should be considered the same as a double move by the other side.

Edited. Can you publish it please?

I like the idea, but perhaps a flaw in the game would be the unprotected pawn on a7. After 1 f4 Black has few defensive options and one would never arrive at "double king-pawn openings" since after 1...f5 2 Bxa7 already would drop and exchange in addition to the pawn. Maybe as in Schoolbook chess the Chancellor and Queen need to be out on the flank and the Archbishop deployed to the center.

Fixed,

I cannot love Courier-Spiel, but I (heart) Shako.

Revising my [2006-08-12] comment:
Unicorn=10, Queen=10, Chancellor=9, Rook=5.5, Lion=5. Bishop=3.5, Knight=3, Elephant=2.75, Pawn=1 
are endgame piece values (for Shako and Unicorn Great Chess) which preserve some formulas I firmly believe in, namely Q+P = R+R and Q = R+B+P and R+P = B+N. The Cannon should be worth 4 Pawns at the start of the game, but decline to half the value of a Rook in the early endgame (2.75 Pawns). I consider short range pieces to have more value than Antoine Fourrière gives them in his Comment. Even the lowly Ferz should be worth 1.5 Pawns on a 10x10 board.

I'm not quite sure whether I want to rate this Good or Excellent so I'll go with the higher rating. This is a great way to enhance weaker pieces without making them too strong. An interesting variation of this idea might be to have all the pieces except the king and queen start without their non-capturing king moves and gain them by promoting on the last two ranks.

Similar to Courier-Spiel, the game adds modern Bishops and improves the Elephants (called Couriers here). Switching the Bishops and Couriers in the initial setup will improve this game. While the b-file and h-file Pawns are now undefended, they are also no longer threatened by hostile Bishops. Jumping the Courier c1-c3 will help to shield the Pawn on (b2).

Some time before 1992, Paul V. Byway included the Ferz in Modern Courier Chess, placing RNCBFQKFBCNR on a 12x8 board. Ken Franklin also placed Alibabas in Leap Chess on 44 squares.

Back in [2018-03-04] Kevin Pacey mentioned "the pleasing possibilities of smothered ... mates".  My 12x12 variant Rose Chess XII has 96 empty squares, with ten Pawns each on the 4th and 9th ranks.  But Black can deliver a smothering mate with a circular Nightrider on the second move of the game.  A position so amusing that it earned a diagram at the top of the rules page.

"This rule gets rid of zugzwang." 
 
More than sixty years ago I learned how to use zugzwang to win with King and Rook against the lone King. So how does Tony Berard deal with this problem? 
 
"The rooks, bishops, and knights now also move and capture like a king." 
 
Sixteen years ago I commented on Ultra Chess (by Ruggero Micheletto).  Here is a question for both authors.  Is the endgame King and Rook versus King and Knight even more likely to lead to a draw in your chess variants?

Kevin, I am adding the Dragon Horse or Crowned Bishop, worth six Pawns. Multiplying my previous list by 0.36 makes my combined value of Rook and Knight equal to yours, as follows:

Pawn = 1.08, Elephant = 1.44, Ferz = 1.80, Knight = 3.60, Rook = 5.40,

plus Alibaba (A+D) = 2.52, Commoner (F+W) = 4.32 and Dragon Horse (B+W) = 6.48.

Here is a Fairy-Stockfish variant file that I made for the variant. Despite the E and Elephant symbol, these pieces are still princes (princE). It might not be 100% accurate, but this should be incredibly similar to the actual variant, as there are essentially no differences between promoting the princes to kings to win (by getting them directly to the last rank) or merely getting the princes to the end of the board (the last rank) to win. This variant also has defined castling rules.

[chessii:janus]
startFen = rnbeqkebnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNBEQKEBNR w KQkq - 0 1
customPiece1 = e:WF
pieceToCharTable = PNBRQ............E...Kpnbrq............e...k
castlingKingsideFile = i
castlingQueensideFile = c
whiteFlag = *8
blackFlag = *1
flagPiece = e
maxFile = 10
archbishop = -
promotionPieceTypes = rnbq

This is meant to be used with https://fairyground.vercel.app/, and should be pasted into a file called variants.ini, before loading the variants.ini file into the website.

Hi, David! Glad to see you back! This is a nice helpmate and looks like an interesting 'little' game to play - all that power in the corners and a weak center, on a small board! The central rook is a rare feature, or was, a decade or two ago. Who's used it besides Ralph, you, and me, any idea? I don't remember it in even any semi-popular game onsite aside from what you and Ralph have done.

I played this on brainking.com many times and it is fun, even if the outcome is more dependent on luck than on skill.

This is a nice game. It seems to have a theme of rook + weaker piece compounds. I wonder why the board isn't 15x10 to make room for another knight, and have a nice 3:2 shape like Courier Chess. An alternative enhancement would be a pair of camels on d1 and k1 and a camel-rook on i1. That would make more sense of the 10 rank board.

Spartan Chess has the Warlord and the General, together worth approximately three Rooks. These are solid performers that have been used in many variants. Worth noting that pieces like the Lieutenant with additional noncapturing moves are rare. My Shatranj Kamil (64) has Elephants with noncapturing Dabbabah leaps and ArchMage Chess by Cyrus Arturas has the Prince, a Commoner with noncapturing R2 moves (no mention of Dabbabah leaps). In the diagram below, a Warlord pins a Rook against the White King - winning the piece and the game.

WHITE TO MOVE AND LOSE

Nice mixture of pieces in this variant!

edit: Also, this CV reminds me a little of Opulent Chess:

https://www.chessvariants.com/rules/opulent-chess

edit2: Two CVs that might have been inspired by TenCubed Chess (but weren't):

https://www.chessvariants.com/play/soho-chess

https://www.chessvariants.com/play/wide-soho-chess

I fixed it, it's your turn. There is no castling here;)

I'd rate this game as average, but that option seems to be lost from the rating system's choices these days (just 'None', 'Poor', 'Good' and 'Excellent' are available to choose from, at least for this game and many others I've seen for quite a while).

The great power of the pieces chosen for the setup of this CV may be a bit much for 14x8, but this game has somehow proved popular (at least in the past). It might especially appeal to novices (at least none of the piece movement rules seem at all difficult to master, if one has played chess).

What might improve this CV is if there were a way to quickly bring the king to safety (if that's possible), or to at least get nearer to connecting the rooks. For example, my 'Fast Castling' rules might be used, as first put forward in the following CV:

https://www.chessvariants.com/rules/wide-chess

I'm a bit surprised this variant hasn't been played much so far on GC. If people think there's too much power in the setup, maybe by switching the FIDE army of each side onto their 2nd ranks, directly behind their pawns, that then could help the game unfold a bit more slowly, if that's desired.

You have to admire a game like this that looks mind-bending to the average chess player, perhaps.

@Fergus: For some reason this game is not showing up in the main Alphabetical index unless I look under "S" - in fact there is no "Sk" symbol for the index currently showing at all(!).

edit: also, I'm not sure the preset diagram (after clicking on link) is correct. In fact, all the finished games of it in GC look broken, perhaps (error code page showing for each game when log clicked on).

To answer an old question here, Rose Chess (2007) replaces the Knights in Christian Freeling's Grand Chess with Roses. And continues on to add Bishop+Rose and Rook+Rose pieces to the game. My Rose Chess XII (2007) has a Half-Rose and an ordinary Nightrider on a 12x12 board.

For anyone contemplating a really big (16x16) version of this game, I frivolously offer the:

Thirteenleaper: moving from (a1) to (a14) or (f13) or (m6) or (n1).

On a (16x16x16) 3D-board it also leaps (3,4,12) and (4,12,3) and (12,3,4) and so forth.

I fixed things about horse promotions, but quality of pieces’ images on the submission’s diagram is amazing in the worst sense of it.

I think that’s bug