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Betza notation (extended). The powerful XBetza extension to Betza's funny notation.[All Comments] [Add Comment or Rating]
Niels van Ham wrote on Thu, Dec 28, 2023 12:05 PM UTC in reply to HaruN Y from Fri Dec 1 07:01 AM:Good ★★★★
That'd be nnNN, wouldn't it?

Chess on a Tesseract. Chess played over the 24 two-dimensional sides of a tesseract. (24x(5x5), Cells: 504) [All Comments] [Add Comment or Rating]
Ilya Yudovski wrote on Sun, Dec 24, 2023 07:49 PM UTC:Excellent ★★★★★

Astounding. I don't think I'll ever play something so complex, but the concept and work are awesome. The case, when reading about game rules and design, is almost as exciting, as the play itself.


Mathematichess. A chess variant specially designed for mathematicians. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Diceroller is Fire wrote on Sat, Dec 23, 2023 01:42 PM UTC in reply to Fergus Duniho from 01:36 PM:Good ★★★★

As for myself, I’m not even sure this is a chess variant. Although it uses Chess equipment, it seems to be a very different sort of game than chess.

Though it’s rather good (at least at first glance). Idea is very interesting.


Copycat Chess. New piece added which copies move of just-moved piece. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
AB wrote on Tue, Dec 12, 2023 02:01 AM UTC:Poor ★

It's basically the idea of the piece Joker, invented by T.R.Dawson but with a lot more constraints. This might be better if there was motivation given for how the extra rules are beneficial. As it is, it occupies the term "Copycat" that might be given better meaning. Sorry.


Man and Beast 14: Oddly Oblique. Systematic naming of hex-specific coprime oblique pieces.[All Comments] [Add Comment or Rating]
Danylo Maschenko wrote on Sat, Dec 9, 2023 12:43 PM UTC:Good ★★★★

Reusing the names of 8:3:n leapers for a Higgler hex coordinate could unite Cormorant and the 7 level moving Entrap rotation with cubic pieces with twice their SOLL (Octodont, Onlooker), allowing Octodont+Cormorant (Coypu?)/Goose/Gull/Bustard, Jaw+Chough (Jamaican?)/Gosling/Guillemot/Budgie and Onlooker+Entrap/Nosrap (Nosferatu) on hex-prism boards.


Cetran Chess 2. Missing description (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Daniel Zacharias wrote on Sat, Dec 9, 2023 12:34 AM UTC:Excellent ★★★★★

I like Cetran 3 more than the 8x8 versions. The piece variety makes it much more fun.


Grant Acedrex. Medieval large chess variant according to recent historians's work. (12x12, Cells: 144) [All Comments] [Add Comment or Rating]
Diceroller is Fire wrote on Mon, Dec 4, 2023 11:02 AM UTC:Excellent ★★★★★

Very good article! I really like this variant in this interpretation.


Modern Republican Chess. Private Game with side(s) whose pieces have diagonal counterpart. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]

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SWAROS chess variant. Members-Only Board: The SWAROS Chessboard consists of 576 squares, 24 rows by 24 columns, on which the chess pieces are placed. It is square. (24x24, Cells: 576) [All Comments] [Add Comment or Rating]

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Vivarta Chess. he rules are simple. Each piece automatically transforms into a different piece every time it moves. Pawns transform into Knig.[All Comments] [Add Comment or Rating]
Florin Lupusoru wrote on Thu, Nov 16, 2023 04:09 PM UTC:Good ★★★★

This is a good idea but I would have included more randomness into it. We are talking about computers beating humans at chess. We need to make the chess game impossible for computers to analyse. If the chess pieces for this game were something Reversi like, where you can flip a piece and turn it into a completely different and random piece, that would flip upside down the entire strategy of chess, giving humans more advantage against computers.


Grasshopper. Moves along queenlines to first square after jumped over piece.[All Comments] [Add Comment or Rating]
HaruN Y wrote on Thu, Nov 16, 2023 02:02 AM UTC in reply to H. G. Muller from Wed Oct 15 2008 06:50 AM:Excellent ★★★★★

HG Mulller's Grasshopper Chess

files=8 ranks=8 promoZone=1 promoChoice=NBRQG graphicsDir=/graphics.dir/alfaerieSVG/ squareSize=50 graphicsType=svg symmetry=none rimColor=#208d4e darkShade=#4cba5f lightShade=#7adbac coordColor=#83b079 useMarkers=1 borders=0 firstRank=1 shatranj pawn:P:fmWfcF:pawn:a3,b3,c3,d3,e3,f3,g3,h3,,a6,b6,c6,d6,e6,f6,g6,h6 knight:N:N:knight:b1,g1,,b8,g8 bishop:B:B:bishop:c1,f1,,c8,f8 rook:R:R:rook:a1,h1,,a8,h8 queen:Q:Q:queen:d1,,d8 grasshopper:G:gQ:grasshopper:b2,g2,,b7,g7 king:K:KisO2:king:e1,,e8

A Cylinder chess puzzle - 2. Missing description[All Comments] [Add Comment or Rating]
HaruN Y wrote on Mon, Nov 13, 2023 12:55 PM UTC:Excellent ★★★★★

Cylindrical Chess but null move is allowed

files=8 ranks=8 promoZone=1 promoChoice=NBRQ graphicsDir=/graphics.dir/alfaeriePNG/ squareSize=50 graphicsType=png symmetry=mirror graphicsDir=/membergraphics/MSdealerschess/ darkShade=#5D3954 lightShade=#bd33a4 rimColor=#BA0E09 firstRank=1 borders=0 coordColor=#FFBF00 shuffle=N!BRQK cylindrical pawn:P:ifmnDfmWfoceF:pawninv:a2,b2,c2,d2,e2,f2,g2,h2,,a7,b7,c7,d7,e7,f7,g7,h7 cylindrical knight:N:oN:knightinv:b1,g1,,b8,g8 cylindrical bishop:B:oB:cylbishop:c1,f1,,c8,f8 cylindrical rook:R:oRsoaboabR:cylrook:a1,h1,,a8,h8 cylindrical queen:Q:oQsoaboabR:cylqueen:d1,,d8 cylindrical king:K:oKisO2:kinginv:e1,,e8

And with shuffle.


Colorful Osmosis Chess. All basic pieces are colorbound or colorwithching. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
Diceroller is Fire wrote on Sun, Nov 12, 2023 04:24 PM UTC:Good ★★★★

I see that Bishop/Camel + Harvestman compounds (Evangelist and Imam) are also able to checkmate in K vs K + X endgame. (It includes the King move so can easily do that). OTOH Wildebeest (aka Gnu) is not able to do this.


Sac Chess. Game with 60 pieces. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
Joseph Ruhf wrote on Sat, Nov 11, 2023 04:51 AM UTC:Good ★★★★

I cannot call this game “bad”, but I agree with the British chess master William Winter that the standard Marshall-Chancellor and Cardinal-Archbishop pieces added to Chess obviate the Knights and Bishops to a great extent when combined with the Queen already existing. The Amazon arguably also obviates the Rook in addition to people being skeptical of adding it to Chess without adjusting the rules so it doesn’t overpower the game. Have you tried playing with Fusion Chess or Assimilation Chess rules with Men?


Companion chess. The Queen may have a companion. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Bob Greenwade wrote on Sun, Nov 5, 2023 06:27 PM UTC:Good ★★★★

This is (IMO) quite a clever use of a Carrier type of piece. I'd love to see if that can be programmed into an Interactive Diagram; I think it'd be interesting to play.


Mirodoly Chess 12x12. Members-Only Chess with Archer and with Sagittarius. A version of chess for a 12x12 board, the closest to the classic. (12x12) [All Comments] [Add Comment or Rating]

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Frog Chess. Play chess with added frogs (ferz-threeleaper compound) on 10x8 board.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Sun, Oct 29, 2023 10:17 PM UTC:Poor ★

Too bad that this GC has no rules enforced


Boyscout. Moves in a diagonal zigzagline.[All Comments] [Add Comment or Rating]
HaruN Y wrote on Wed, Oct 25, 2023 03:51 AM UTC in reply to Michael Nelson from Tue Oct 24 05:13 PM:Excellent ★★★★★
Harvestman seems too strong for a Rook.
Color-switching approximately Rook-valued pieces that I know are NH, NW, Mao-Bishop, Trojan Horse.

Favorite Games. Chess variants favorited by our members.[All Comments] [Add Comment or Rating]
Jean-Louis Cazaux wrote on Tue, Oct 24, 2023 12:22 PM UTC in reply to H. G. Muller from 12:17 PM:Poor ★

Alright. I haven't many things to say. So I select "poor". Hope I'm not getting my votes down by some centivotes. :=)


H. G. Muller wrote on Tue, Oct 24, 2023 12:17 PM UTC in reply to Jean-Louis Cazaux from 12:05 PM:Good ★★★★

Well, you don't have to do anything; it is just that all your favorites then will benefit equally from your voting, as there is no way for the system to know that you liked some better than others. This might be what you want anyway, as you prefer the 'one-man-one-vote' system.

BTW, I selected a rating 'good' when posting this Comment, just to see what happens.

[Edit] Well, it displays 4 stars.


Griffon. Historic piece that steps one space diagonally then slides like a Rook.[All Comments] [Add Comment or Rating]
Diceroller is Fire wrote on Mon, Oct 23, 2023 07:43 PM UTC:Good ★★★★

This piece has the power of Queen. And I’ve found a checkmating tactic for the piece which controls the spaces around the files/ranks such as Aanca, Magician and one my piece I currently omit. This tactic appears in K vs K + piece endgames and is called wind tunnel (aerodynamic tunnel). Piece confines the King in a file/rank between its covered lines, and then your King drives it to the last rank, but to avoid stalemate, you should then cut off the previous-to-last line to avoid escaping of opponent’s King. But it’s better to firstly drive them as far as you can from board center and then confine into tunnel. For Aanca it’s possible on normal board, but less possible for Magician, though you shouldn’t forget that both these pieces are from games with 12x12 board.


Storm the Ivory Tower. A Smess adaptation of Chinese Chess. (9x10, Cells: 90) [All Comments] [Add Comment or Rating]
HaruN Y wrote on Mon, Oct 23, 2023 12:37 PM UTC:Excellent ★★★★★

Royal Ninny>Ninnyrider>Chinoise Ninnyrider>Yahoo>Ninny>Dumbo>Trapped Ninny


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