[HN Gopher] Pauli Chess ___________________________________________________________________ Pauli Chess Author : weinzierl Score : 50 points Date : 2020-03-28 07:57 UTC (15 hours ago) (HTM) web link (blog.plover.com) (TXT) w3m dump (blog.plover.com) | aj7 wrote: | Just switch the knights with the bishops, and you're in a | different universe. | [deleted] | symplee wrote: | Anyone have links to play online? | | Some sites I can think of that support other variants: | | https://lichess.org/ ( https://github.com/ornicar/lila/ ) | | And some crazier variants: | | https://www.pychess.org/ ( https://github.com/gbtami/pychess- | variants ) | | https://chessvariants.training/ | dwighttk wrote: | https://pippinbarr.github.io/chesses/ | | (doesn't have Pauli Chess, but does have some fun variants) | sova wrote: | I bet a superhero from lichess would be happy to bust this out | in a weekend | dmurray wrote: | Lichess's policy is generally not to implement tons of | variants, even those that would play nicely with PGN (this | wouldn't). | | You could definitely hack this together on a fork of lichess, | but don't expect to see it on the main site. | mannykannot wrote: | "The main idea is: two pieces can be on the same square... | Pierre-Francoys says he wishes that more than two pieces could | share a square... The name "Pauli Chess", is inspired by the | Pauli exclusion principle, which says that no more than two | electrons can occupy the same atomic orbital." | | Pierre-Francoys' variant would be Bose chess, I suppose? | downshun wrote: | Alphazero mastered chess by already-implemented self-play. | | A slight change in the game rules can have a significant effect | on the game and strategy, as anyone that delves into chess | variants knows. Is the same true for their implementations? | | What is the limitation for state of the art AI in adapting in | such a way to rule changes? | dabei wrote: | It's a very simple change, since the fundamentals of the game | is still the same. It should take no more than a day to change | the code and re-train the model. | shmageggy wrote: | Turns out DeepMind has already been working on exploring | variants with Vladimir Kramnik! | | https://www.chess.com/article/view/no-castling-chess-kramnik... | | Currently they have to train from scratch, but adapting to new | tasks is an active area of research for RL broadly. | karmakaze wrote: | > 5. Pieces of opposite colors sharing a square do not threaten | one another. | | This is going to be strange with kings. You could capture a piece | in a square with a king and the king would require two moves to | capture it, and if it was a queen the king couldn't move. Then | just have to check the square for mate. | codeflo wrote: | There are not all that many ways this could happen, though. I | think you can only enter the square of the opposing king with a | pawn. With all other pieces, you'd have to threaten the square | first, which would be check. You could promote a pawn into the | king and create a queen on its square. | | The other way would be if the king itself moves. If the king | moves onto a square with an opposing rook and a queen, and | decides to capture the rook, the king is trapped until the | queen moves. In this scenario, the queen must have moved there | in the last turn, putting the king in check. Maybe that's a new | way to get a stalemate. | jackhalford wrote: | I don't think that could happen, if an opposing king shares a | square with another piece, you would choose to take the king to | win the game. | lihaciudaniel wrote: | Either two pieces can be on same square this would definitely | mess with tactics. But strategically speaking is just like normal | chess but with more squares | crystaln wrote: | Not at all. As the page says, you can't block pawns, which | entirely changes the game. You also don't need to move pawns to | develop pieces. | esrauch wrote: | You can still block pawns using a pawn plus another piece. | gpm wrote: | Can you? The rules are unclear. Interpreted literally they | would mean that the pawn could move into the square | (directly in front of it) and then take one of the | opponents pieces in that square. | dwighttk wrote: | >All pieces move and capture the same as in standard | chess | | so pawns have to capture diagonally still... I guess if | you want to see 4 as an exception to that then they can | capture straight ahead, but I'm assuming it isn't. | sova wrote: | Super leaky chess? Looking forward to an implementation so I | can try and wrap my mind around how it works. What's to | prevent both players from pushing all pawns through the leaky | sieve and promoting everything to Queens right off? | downshun wrote: | Captures | oh_sigh wrote: | Other chess variants beyond the common: 1) friendly fire is on. | You can capture your own pieces if you want. | | 2) You can move yourself into check, but only if you checkmate | your opponent simultaneously, in which case the game is a tie | sixstringtheory wrote: | One of my favorite variants is suicide chess. The goal is to be | the first to lose all your pieces. All rules are the same with | one addition: if you can take a piece, you must. | kick wrote: | It's really fun! You can play it on Lichess under | "Antichess." | [deleted] ___________________________________________________________________ (page generated 2020-03-28 23:00 UTC)