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Capablanca Chess | A new challenge for Stockfish
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- Опубліковано 15 лют 2022
- Capablanca chess (or Capablanca's chess) is a chess variant invented in the 1920s by World Chess Champion José Raúl Capablanca.
It incorporates two new pieces and is played on a 10×8 board. Capablanca believed that chess would be played out in a few decades (meaning games between GMs would always end in draws). This threat of "draw death" for chess was his main motivation for creating a more complex version of the game.
* The archbishop combines powers of a bishop and a knight.
* The chancellor combines powers of a rook and a knight.
The new pieces allow new strategies and possibilities that change the game. For example, the archbishop by itself can checkmate a lone king in the corner (when placed diagonally with one square in between).
I love the whole idea of a system originally created for a variation of maximum performance for standard chess playing a game where triple long castling is a casual integer in it. The whole board feels like war as all the pieces are either locked in an attack or lain askew across the board and with a system known for it’s devastating locking of pieces to get absolutely *disgusting* checkmates, it’s quite beautiful in a sense for the two stockfishes to go in full on combat.
Beautiful channel, I was playing with this idea for a channel for a while but never had guts to commit to the time and effort it required. Hope you enjoy and benefit from your good work. would be great to let engine analyze the move for longer time (perhaps 40 Move 120m) and play back with 1 move per second. Also would be great if you could share the link (at least for standard games) and/or evaluation on screen. Some of the moves seems stupid but I am sure if we look into the lines it should be interesting.
Hey, thanks so much your for kind words.
I actually let the engines search for moves a lot longer. This view you see is only for display and actual work is done elsewhere :). I was sharing the PGN moves but stopped it since I thought no one is interested. But will try to do it from now on.
@@NeuralChess Yeah, I think us nerds would enjoy some details on your system, how long is spent in calculation on each move, which version of Stockfish you're using, etc. Fun channel!
@@NeuralChess thanks great to know that you let the engines search for best moves. Although new pieces and board size can completely change the dynamics and make the engine confused but still better to let it think and do it’s best.
@@NeuralChess Errou bastante. Estamos muito interessados!
It’s great that you make these videos you could end up with the new pieces like the archbishop against the queen and three pawns each.
That's a great idea! Thanks
Fun video!
I wonder how stockfish evaluated the value of the pieces. Are rough values hard coded, or deduced somehow? Trading a chancellor or queen for an archbishop seems a bad idea...
They have some hardcoded value, but it also changes depending on the position.
Fairy Stockfish has automatically generated eval depending on the variant rules and fairy pieces used. However, an NNUE specific to Capablanca/Gothic chess is available to download (for free).
Proposed points values for these pieces are (from wikipedia en.wikipedia.org/wiki/Capablanca_chess ):
Archbishop: 8.75
Chancellor: 9
Queen: 9.5
I've found another article where they are given values
Archbishop: 8
Chancellor: 8.5
Queen: 9
Archbishop being so close to queen and chancellor in power might seem initially a little surprising, cause it combines knight and bishop (two pieces that are not individually that strong) but it's actually a very strong piece. Able to checkmate a king without any additional support (as mentioned in the video). Able to switch between light and dark diagonals.
@@KaitlynBurnellMath For comparison, these are the values that Fairy Stockfish gives (Midgame/Endgame):
Queen: 2538 / 2682
Chancellor: 2300 / 2600
Archbishop: 2200 / 2200
For comparison, the pawn is 126 / 208
@@KaitlynBurnellMath Theu combination covers both pieces weaknesses.
Main problem with bishop is that its stuck on ome colour.
Problem with knight is that it's short range. And slightly also that knight has to change colour.
I desired a channel like this for a long time. Thank you for your effort, keep up the good work. Also I would like to see a game played by an engine that tries to make the worst possibile move at every turn.
Yeah, great idea! And appreciate the kind words.
Do you know any place where I can play it online?
Maybe my name might have a clue :D
There is a place called Pychess. They use fairy stockfish, and there are also many other varients.
can you try doing some anti- variants?
i.e. with forced captures?
So is whites advantage just insurmountable with optimal (or close enough w/ Stockfish) play?
I don't think so. Although white won here, it could be random or Stockfish might be wrong. But there are also theories that even standard chess is winning for white with optimal play.
Keep in mind that Fairy Stockfish isn't anywhere near as good as normal Stockfish. Normal Stockfish has been tuned and re-tuned, has a very complex opening book, potentially has access to end-game tablebases, and (with the newest releases) has a neural network that has self-trained extensively to determine new tactics and strategies. Fair Stockfish, well, doesn't.
That doesn't mean that Fairy Stockfish is a *weak* player by any stretch of the imagination -- but its far, far weaker than normal Stockfish.
I suspect that:
1) The poster had several draws before he found an interesting (not a draw) game to post and
2) A GM that was skilled in this *particular* variant could defeat Fairy Stockfish.
@@jmr5125 it's not just weak. It's terrible. In this game blacks just gave their queen for a knight like .. Wtf?
@@vladimirk7686 I think the underlying issue is that there are *no* positional mechanics in Fairy Stockfish. The evaluation function simply scores positions based on the material on the board at the end of the variation.
In such a scenario, if you will be forced to lose the queen at the end of all (lets say) 16 ply continuations, there is no reason to favor losing a queen immediately vs. losing the queen later. The two lines score the same, so Fairy Stockfish sees no reason to prefer one line to another.
@@vladimirk7686 what do you expect black to do? White threatens a king queen fork with rook. If the queen runs, rook or queen can still take the pawn and wreak havoc, possibly going into mate
You know stockfish smokes weeds when it doesn't do the french move
The most interesting chess variant that I've ever heard of is... Well, I checked Wikipedia, and it I didn't see it listed, so I don't know what the name is, or if it has a name. :)
Its very straightforward, though: All the rules are the same as normal chess, except that when a draw would otherwise occur (due to the 50 move rule, or a draw offer made and accepted), the next player to move returns whichever of their pieces was captured last to the board, in the position that it occupied prior to being captured. If that location is occupied by a hostile piece, that piece is captured. If that location is occupied by a friendly piece, the player has the option of forgoing returning the missing piece or "capturing" the friendly piece. In the case of draws due to the 50 move rule, pieces will continue to be returned (one each players turn) until some specific number of pieces are on the board -- in the case of a draw offer made and accepted, each player will return one piece, with the player that accepted the draw offer adding the first piece. Note that returning a piece doesn't replace the players normal move -- its "in addition", and occurs before the normal move is made. Thus, the newly returned piece can be moved the turn it returns.
The idea, of course, is to reduce or eliminate draws. Given that it isn't even listed on the WIkipedia's rather exhaustive list of chess variants, I'm pretty certain that it doesn't actually work that way. :)
Essa me pareceu ser uma variante ruim.
A menos que houvesse ajustes na pontuação. Por exemplo, ao acordar ou forçar empate, cada jogador garante 0,5 ponto. E ao continuarem o jogo eles disputam entre si 0,25 pontos restantes.
Mesmo assim, continuo achando uma ideia péssima. Veja o caso dos empates por afogamento. Imagine o desequilíbrio que seria após a introdução de novas peças! Sendo que um dos lados acabou de sacrificar todas as suas peças para obter um empate por afogamento.
Enfim, uma ideia ruim.
Hi neural chess 👋🏽
I really like your content and appreciate ur efforts on this type of fairy chess,i suggest a chess variant which called (standard fairy chess) which i think about and i want to see it
This variant works that having every possible Standard chess piece that can compare with knight & bishop & Rock
So the pieces in it will be like this
1knight 1bishop 1rock 1queen 1king 1chancellor 1archibishop 1amazon in the last row of each colour
The position is random like bobby Fischer 960chess..
This is my variant and i hope you like it,bye
Hey, thank you. I like it and will try soon. Cheers. :)
@@NeuralChess TY!
Very comfortable for a wide screen!
seeing the thumbnail i thought it was gonna be a 10x4 board
Edward, you were playing against Capablanca of course he would crush you quickly.
1:32 pawn is untouchable obvious pawn sac
How about simply adding a row to normal chess? This is, to initiate the game with black pieces in rows 8 and 9. How much would theory change? How would stockfish play?
Popular variant
Yea, I don't like the piece names. They are now the knishop, and the knook.
How can I use stockfish on boards like this?
Is there a particular interface to do it?
This is my custom interface, but there are lots of them with many options. Here is a non exhaustive list: github.com/ianfab/Fairy-Stockfish/wiki/Graphical-user-interfaces
Thank you for the reply
Can you make a video on Orda Chess? It's a great variant featuring the kheshig, a piece that moves like the centaur (knight + non royal king)
I guess the queens can be replaced with Amazons
Given how it plays out it seems white has an overwhelming advantage at least if you're at Stockfish's level
Ah yes, bisnight and tonight
Second 🙌 great video 🌟
Yay! Thank you!
Please make a video on centaurs, and test it against the archbishop, to see which piece would win (removing the knight component would transform both pieces to mann (king, but nonroyal) and bishop respectively, which would result in a mann having the advantage, I wonder what would happen in a centaur vs archbishop matchup, which is the similar as mann vs bishop, but now both are augmented with knight moves)
P.S = Centaur is Mann + Knight
How about 10x4 chess?
Or how about 10x10?
Or 4 player chess?
Panoramic interesting chess figure and game and quickly match.😐
Do stockfish tamerlane chess
1:39 bro that is not how you are supposed to castle are you
интересно конеслонь и конеладья
3:49 ??????
Chansler estimate bish and kight 6 points
Rook and kight 8
How about knight + king (but not royal, a.k.a. Mann)?
Black played passive opening that's why he lost
Ah, yes. Immediate opening up of lines and sacrificing a pawn (although it was declined). The steinitz variation of the snore opening.
black lose because didn´t take en passant 1:50
Firsn't
You monster