Magic Chess Tours (with Knights and Kings) - Numberphile

Ғылым және технология

Ayliean MacDonald shows how KNIGHTS and KINGS can create MAGIC SQUARES on chess boards. More links & stuff in full description below ↓↓↓
This video features Ayliean MacDonald... More of her at / ayliean
And linktr.ee/Ayliean
More Numberphile featuring Ayliean - • Key to the Tower of Ha...
We created some T-Shirts and merch based on the Kings Tours - numberphile.creator-spring.co...
The Trapped Knight - • The Trapped Knight - N...
Knights Tour - • Knight's Tour - Number...
Parker Square - • The Parker Square - Nu...
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Пікірлер: 198

  • @numberphile
    @numberphileАй бұрын

    More Numberphile featuring Ayliean - kzread.info/dash/bejne/gnuptM-qoNWcf9I.html T-Shirts and merch based on the Kings Tours - numberphile.creator-spring.com/listing/symmetric-kings-tours-number

  • @AlSuChess

    @AlSuChess

    Ай бұрын

    This is really cool when you see the pattern on the board like this! Thank you for sharing!

  • @the_blue_chicken
    @the_blue_chickenАй бұрын

    The Parker square still being referenced today is very funny

  • @volodyadykun6490

    @volodyadykun6490

    Ай бұрын

    There was development in the story not so long ago

  • @aryst0krat

    @aryst0krat

    Ай бұрын

    @@volodyadykun6490 Oh?

  • @racecarrik

    @racecarrik

    Ай бұрын

    Silly goose, why would a mathematical law not be referenced?

  • @eryqeryq

    @eryqeryq

    Ай бұрын

    Poor Matt tho 😢

  • @cartatowegs5080

    @cartatowegs5080

    Ай бұрын

    ​@volodyadykun6490 you can't just leave us hanging.

  • @ericgoldman7533
    @ericgoldman7533Ай бұрын

    "Who would call that a magic square?" That's savage 😂

  • @topherthe11th23
    @topherthe11th23Ай бұрын

    I've been working on a Bishop's Tour that hits all 64 squares for 25 years, but haven't succeeded yet.

  • @shinobu5359

    @shinobu5359

    Ай бұрын

    Anything's possible! Don't give up!

  • @JohnSmith-nx7zj

    @JohnSmith-nx7zj

    Ай бұрын

    When you’ve cracked that I think you should work on the pawn’s tour.

  • @N.I.R.A.T.I.A.S.

    @N.I.R.A.T.I.A.S.

    Ай бұрын

    😂 keep at it bro

  • @JustAnotherCommenter

    @JustAnotherCommenter

    Ай бұрын

    Don't try Rook's tour. I think it's too straightforward.

  • @mathijs58

    @mathijs58

    Ай бұрын

    Did you try doing it on a Möbius board?

  • @deliciousrose
    @deliciousroseАй бұрын

    1:31 Parker Square spotted!

  • @brianlane723
    @brianlane723Ай бұрын

    A Parker knight's tour on a Klein bottle that sums to -1/12. The ultimate Numberphile video.

  • @harmanpreetsingh7848

    @harmanpreetsingh7848

    Ай бұрын

    But the path is first passed through an Enigma

  • @user-hr7po5tn5i
    @user-hr7po5tn5iАй бұрын

    Thanks just upgraded my phones unlock pattern ! 📱🔓👍

  • @noahblack914
    @noahblack914Ай бұрын

    9:04 Knight's Tours almost _have_ to be more awesome. There's nothing surprising about a piece that moves 1 space at a time being able to visit every square. The weird movement of the Knight is what makes it interesting.

  • @U014B

    @U014B

    Ай бұрын

    Exactly. It's the extra restriction on the Knight that makes it so much more impressive.

  • @TheArtOfBeingANerd

    @TheArtOfBeingANerd

    Ай бұрын

    I think the fact the a magic square can be formed by each number adjacent to the previous is pretty amazing.

  • @simonf8370
    @simonf8370Ай бұрын

    Massive shout out to Pete for the outstanding graphics!

  • @DeclanMBrennan
    @DeclanMBrennanАй бұрын

    Guy called Pete: "You rock".

  • @thenoobalmighty8790

    @thenoobalmighty8790

    Ай бұрын

    Your mom rocks

  • @SeanKennedy
    @SeanKennedyАй бұрын

    Thanks Pete ❤ 11:18

  • @Sons1717
    @Sons1717Ай бұрын

    I love her comment on obsessions of drawing these mathematical objects! I'm a postdoc in theoretical physics, and I definitely questioned myself multiple times in the past, "Do I actually like physics, or do I just like drawing shapes?". It's really nice to see someone who emphasizes the same sentiment!!

  • @OneTrueBadShoe
    @OneTrueBadShoeАй бұрын

    I absolutely adore Ayliean MacDonald! I sometimes sit for hours making art by methods she's shown on Numberphile and her own channel.

  • @iseriver3982
    @iseriver3982Ай бұрын

    0:38 looks like a Nepo v Dubov game 😂

  • @prathamesh413

    @prathamesh413

    Ай бұрын

    Waiting to see how many will get this reference

  • @Matthew-bu7fg

    @Matthew-bu7fg

    Ай бұрын

    Hahaha wow very niche reference

  • @Filipnalepa

    @Filipnalepa

    Ай бұрын

    I know who are Jan and Danila, but I don't know which game itiis about.

  • @jeronbaxter

    @jeronbaxter

    Ай бұрын

    Imagine 3 fold repetition of knights tour.

  • @I_am_Itay

    @I_am_Itay

    Ай бұрын

    Knights go brrr ​@@Filipnalepa

  • @IAmTheGreekMind
    @IAmTheGreekMindАй бұрын

    Thanks Pete

  • @christopherpellerito5883
    @christopherpellerito5883Ай бұрын

    I like how "tour" comes out as "tewer" in Ayliean's Scottish lilt. By the end of the video, Brady is also calling it a "tewer."

  • @TomDarlington

    @TomDarlington

    Ай бұрын

    How do you pronounce it?!

  • @Nightriser271828

    @Nightriser271828

    23 күн бұрын

    I pronounce it "toor".

  • @EmilioBPedrollo
    @EmilioBPedrolloАй бұрын

    1:45 It's called Parker Square

  • @ChessforCharity
    @ChessforCharityАй бұрын

    That is super cool! Thanks for sharing! 👏

  • @sngosne
    @sngosneАй бұрын

    for someone who loves both maths and chess, this is a win video

  • @Matthew-bu7fg
    @Matthew-bu7fgАй бұрын

    chess, magic squares and beautiful art... lovely combination!

  • @paulvanegeren1227
    @paulvanegeren1227Ай бұрын

    This is a visually beautiful video. Well done to the subject and the photographer.

  • @Axacqk
    @AxacqkАй бұрын

    "It's even cooler! If you look at the diagonals... April Fools!"

  • @Zentusichernun
    @ZentusichernunАй бұрын

    A knights tour on a Mobius Strip. That's it. That's the most perplexing thing I've ever seen.

  • @KilgoreTroutAsf
    @KilgoreTroutAsfАй бұрын

    Excited about the upcoming Parker Magic Tour

  • @SquareWaveHeaven
    @SquareWaveHeavenАй бұрын

    9:49 Look at them... they're having the time of their lives together... and you're just gonna have to learn to accept that.

  • @BooleanDisorder

    @BooleanDisorder

    Ай бұрын

    I do accept and love them both. Harmony. ❤

  • @LimeGreenTeknii

    @LimeGreenTeknii

    Ай бұрын

    Relationship goals: me and my partner hopping wildly on an 8x8 grid in L shapes.

  • @AroundTheBlockAgain
    @AroundTheBlockAgainАй бұрын

    This episode was extra magical, thank you!

  • @wyattstevens8574
    @wyattstevens8574Ай бұрын

    I know this wouldn't be a magic square, but the most obvious king's tour in the first place is the "snake path."

  • @IvanDobski
    @IvanDobskiАй бұрын

    Some nice potential tattoo designs for Ayliean here! Love the 3D ones at the end!

  • @IrishEye
    @IrishEyeАй бұрын

    Loved this.

  • @Censeo
    @CenseoАй бұрын

    I love these math videos that are creating beautiful shapes, like this one and the one tile discovery

  • @AgentM124
    @AgentM124Ай бұрын

    Thanks for the animations Pete :)

  • @KaushikAdhikari
    @KaushikAdhikariАй бұрын

    I saw Ayliean, I clicked ASAP

  • @Ayliean

    @Ayliean

    Ай бұрын

    Aww thanks 🥰

  • @lessgoofyone

    @lessgoofyone

    Ай бұрын

    This channel's maths crush! 😅​@@Ayliean

  • @MeriaDuck
    @MeriaDuckАй бұрын

    Surely the room with those patterns on the walls was deliberately chosen. ❤ Ayliean

  • @walterfristoe4643
    @walterfristoe4643Ай бұрын

    More than 25 years ago, I became somewhat entranced with knight's tours, and composed a few dozen of them that were very beautiful. I concentrated on the symmetrical ones, because I was looking for beauty. I even made a chessboard of knight's tours, which used 32 tours twice, mirroring each other. Each square of the chessboard was 2 inches, so the whole thing was 16 square inches. And it was a closed tour. I also made what I called modular tours, dividing the board into sections and then connecting the sections. It was loads of fun to play with something I had read about 50 years ago! 🐴

  • @yoram_snir
    @yoram_snirАй бұрын

    Matt Parker tries every year different method to calculate Pi, still he will be remembered for Parker Square 🤷‍♂️

  • @adipy8912
    @adipy8912Ай бұрын

    On the sponsor screen before the video recommendations i heard Neil's beautiful voice. I miss his sequence videos so much. Hope he return some day

  • @gillfortytwo
    @gillfortytwoАй бұрын

    Anyone else notice that the 12x12 magic and semimagic knight's tours follow space filling curves? Super cool the fully magic one is a Hilbert curve, and that's why it translates up.

  • @PatrickPease
    @PatrickPease19 күн бұрын

    That rebelious squint smirk is my favorite

  • @NickCombs
    @NickCombsАй бұрын

    I bet these tours would look especially nice as Bezier curves.

  • @Finn-OskarMikkelsen
    @Finn-OskarMikkelsen12 күн бұрын

    Love that flash of the Parker Square

  • @frankharr9466
    @frankharr9466Ай бұрын

    That's just fascinating.

  • @likebot.
    @likebot.29 күн бұрын

    Nice bit of -sunshade- fun shade thrown at Matt 1:32 LOL

  • @luketurner314
    @luketurner314Ай бұрын

    3:05 I immediately thought of tiling in the pattern of a Hilbert curve

  • @_rlb
    @_rlbАй бұрын

    I chatted with Ayliean for 42 seconds in London last year. Highlight of my vacation.

  • @deject
    @dejectАй бұрын

    Ayliean is a gem!

  • @SwordQuake2
    @SwordQuake2Ай бұрын

    B2 looks great.

  • @emulationemperor8924
    @emulationemperor8924Ай бұрын

    I've been watching since the original Parker Square. It was very funny to see it referenced again.

  • @marklonergan3898
    @marklonergan3898Ай бұрын

    I think it's funny that you gave an example of a closed one before an open one, given that the closed one IS an open one 1 move before you close it.

  • @mikew6644
    @mikew6644Ай бұрын

    1:30 catching strays 😂

  • @jesuizanmich
    @jesuizanmichАй бұрын

    7:10 was gonna say, that looks exactly like something you'd find in the Book of Kells, a very old church, or weaved into an aran jumper.

  • @user-et5ct1dk6f
    @user-et5ct1dk6fАй бұрын

    9:49 this I find very similar to that 'synchronously dancing bears' gif. Probably cuz they both have the same pace of movements and also the angle of view.

  • @flamencoprof
    @flamencoprofАй бұрын

    Now I want to make a belt and some border wallpaper with King's tour patterns.

  • @serta5727
    @serta5727Ай бұрын

    Cool thing 😎 these Celtic patterns had some mathematical connection

  • @Holdem17
    @Holdem17Ай бұрын

    The math speaks for itself.

  • @antonholt3236
    @antonholt3236Ай бұрын

    Your makeup looks so nice! Also thanks for the cool math knowledge

  • @Ayliean

    @Ayliean

    Ай бұрын

    Thank you ☺️✨

  • @JefferyMewtamer
    @JefferyMewtamerАй бұрын

    Are any of the magic, symmetric King's tours pan diagonally magic? Also, I find myself wondering about Queen's tours where you forbid King's moves and require alternation between Bishop and rook moves. Are any magic and symmetric... and how big can one make the smallest step and still complete a queen's tour? And what about tours using non-standard chess pieces or on a hex or triangular grid?

  • @Z0M8I3D
    @Z0M8I3DАй бұрын

    IDK, seems like king's tours & Celtic knots naturally divide a space with a line of connections. Sounds like a way to encrypt with complexity.

  • @Neptoid
    @NeptoidАй бұрын

    I have collected these patterns as knots

  • @zecuse
    @zecuseАй бұрын

    Just wanted to throw out there that these tours can be represented as a Hamiltonian path. Finding new tours could be done by changing which 2 vertexes connect to each other and then working to remake a new Hamiltonian path from that.

  • @Phymacss
    @PhymacssАй бұрын

    Ayliean and chess? Oh this will be an amazing episode!

  • @rmsgrey
    @rmsgreyАй бұрын

    Obviously you can start a closed tour from any square (you can start it at any point on the entire loop) but are there open tours that start at any given square? For a knight's tour, you obviously have to alternate colours, but if you pick any white square and any black square, is there always a tour that starts at one and ends at the other? I'm sure the answers are known, but they're still obvious questions to ask :)

  • @thisnthat3530
    @thisnthat3530Ай бұрын

    It took a while but I eventually managed to successfully achieve a tour for every type of chess piece on a 1x1 board!

  • @estherstreet4582
    @estherstreet4582Ай бұрын

    Big fan of the intersection of numberphile videos and puzzles from professor layton games that traumatised me as a kid. Eight queens next?

  • @numberphile

    @numberphile

    Ай бұрын

    I think we’ve done that.

  • @gwalla
    @gwallaАй бұрын

    The patterns made by the magic king's tours make me think of knot theory. Also, I wonder if the fact that magic tours are possible on 8x8 with a king but not a knight has anything directly to do with the fact that a knight is strictly color-switching and a king isn't? Would you get the same results as the king with a piece with the same number of possible moves that is similarly divided between colorbound and color-switching, like a wazir+alfil?

  • @brololler
    @brolollerАй бұрын

    Are there any underlying properties with the knot being made with this method?

  • @yeoman588
    @yeoman588Ай бұрын

    Is there someplace online where we can view pictures of all the Knight's Tours and King's Tours?

  • @SaveSoilSaveSoil
    @SaveSoilSaveSoilАй бұрын

    I want those knight tour bracelets!

  • @lafcursiax
    @lafcursiaxАй бұрын

    It's a Magical Chivalry Tour! (Roll up!)

  • @somewinner8229
    @somewinner8229Ай бұрын

    I wish there was an option to see a pawn's tour... which promotes to a knight when it reaches the end of the board 😅

  • @theassailer18
    @theassailer18Ай бұрын

    What are the RL applications to these tours besides it's pleasing to look at?

  • @theguyshetellsunottoworryabout

    @theguyshetellsunottoworryabout

    Ай бұрын

    Nothing more for the moment I think Centuries ago mathematicians were playing with numbers developing what we call number theory today, ignoring that few centuries later we would use them for the security and cryptography of your credit card, or write the code source of your mobile phone or computer Soooooooo nothing for the moment I think, maybe one day it will have some And if not that's still beautiful enough to be published in my opinion

  • @nekrataali

    @nekrataali

    Ай бұрын

    Chess is still unsolved. Specific board states of chess have been solved, but starting from White's turn 1, we're still mostly in the dark. Given there are more possible games of chess than there are atoms in the observable universe, chess is excellent for training computers and testing their limits. Research into topics like this could help us eventually solve chess, which would also result in solving problems using large or infinite numbers. If you can prove specific moves always leads to a win, you'd also be proving stuff about 10⁷⁸. It'd be like proving the last 10 digits of pi.

  • @r75shell
    @r75shellАй бұрын

    I personally like "dizzy king tour": where king not allowed make move in the same direction twice in the row.

  • @pierreabbat6157
    @pierreabbat6157Ай бұрын

    How about a double bishops' tour?

  • @jiaan100

    @jiaan100

    Ай бұрын

    Kinda boring I think

  • @arneperschel
    @arneperschelАй бұрын

    ⏺ graphic design/animation appreciation button!

  • @obiwanpez
    @obiwanpez18 күн бұрын

    Yay, Pete!

  • @robinbrowne5419
    @robinbrowne5419Ай бұрын

    This is mathematical wizardry 🧙

  • @mathijs58
    @mathijs58Ай бұрын

    She shared the secret quite early on in the video! Is she sure we are her favorite kind of people????

  • @EebstertheGreat
    @EebstertheGreatАй бұрын

    2:54 In fact, there are no knight's tours _at all_ on a 4x4 board, let alone magic knight's tours. In general, there are clearly no knight's tours on 1xn or 2xn boards (except 1x1), and it turns out there are also no tours on 3x3, 3x5, 3x6, or 4x4 boards.

  • @cabbageman
    @cabbagemanАй бұрын

    The magic knights tours seem to me to resemble a Hilbert curve shape. I wonder if this is a mathematical connection there. Both space filling curves?

  • @stephanemami
    @stephanemamiАй бұрын

    Could we invent other moves? Could it work? Moves you don't find in chess, like 3-1. Fascinating as usual!

  • @johnrichardson7629
    @johnrichardson7629Ай бұрын

    Parker Knight Tour

  • @JohnnieMartynov
    @JohnnieMartynov22 күн бұрын

  • @Rubrickety
    @RubricketyАй бұрын

    Nice house Ayliean has got! 😉

  • @coconuts2513
    @coconuts2513Ай бұрын

    Parker Square spotted in the wild 😂

  • @JamesGuillochon
    @JamesGuillochonАй бұрын

    I wonder if they noticed the kings tours-like patterns on the wooden wall behind them…

  • @wzdew
    @wzdewАй бұрын

    Doesn't make a lot of difference in this context (though it definitely does in chess), but the bottom right square should be a light square if the board is set up correctly.

  • @serinadersiova1599
    @serinadersiova1599Ай бұрын

    nepo and dubov likes this video...

  • @michaeln6142
    @michaeln6142Ай бұрын

    Fyi this video is an April fool, but it's a secret which part.

  • @robadkerson

    @robadkerson

    Ай бұрын

    You are an agent of chaos. Seeding doubt in the the minds of the masses.

  • @ZoonCrypticon
    @ZoonCrypticonАй бұрын

    Could you invent a new 10x10 chess game with a special figurine (x4 + 4 extra pawns) with a special movement as well?

  • @landsgevaer

    @landsgevaer

    Ай бұрын

    Fairy chess has plenty...

  • @RichardWinskill
    @RichardWinskillАй бұрын

    Gonna assume the maths behind pawn's tours is pretty dull ;)

  • @bluerizlagirl

    @bluerizlagirl

    Ай бұрын

    Only till it becomes a queen, and then it just zips around the rest of the board.

  • @chuckgaydos5387
    @chuckgaydos5387Ай бұрын

    My tours with other pieces ran into problems when I got to bishops.

  • @dr.abdullah.noman.
    @dr.abdullah.noman.13 күн бұрын

    1026W 7182D

  • @faxhandle9715
    @faxhandle9715Ай бұрын

    I’ve been working on the Pawn’s Tour for the last 30 years. What the heck? 😂😂☠️☠️

  • @bluerizlagirl

    @bluerizlagirl

    Ай бұрын

    It speeds up a lot after the seventh move .....

  • @iabervon

    @iabervon

    Ай бұрын

    You should try a bishop's tour. I've been working on that, and it's going great! I'm almost half done, and no problems so far...

  • @ferretyluv
    @ferretyluvАй бұрын

    Do the diagonals really all have to look like that? Why not just have a big Snake-style squiggle? Just go horizontally over each row.

  • @curtiswfranks
    @curtiswfranksАй бұрын

    1×1 works.

  • @madansaini8184
    @madansaini8184Ай бұрын

    Satte ke number kaise nikale uski math bataiye

  • @iseriver3982
    @iseriver3982Ай бұрын

    Remember kids, it's 'white on the right'. 😊

  • @Petertronic
    @PetertronicАй бұрын

    Will we ever get to meet Pete? (It's not me by the way)

  • @madibyee
    @madibyeeАй бұрын

    Magical girls rise up 🔥🔥

  • @MichaelOfRohan

    @MichaelOfRohan

    Ай бұрын

    Woof..

  • @reecec626
    @reecec626Ай бұрын

    Wait, there's another Perth??

  • @Darilon12
    @Darilon12Ай бұрын

    What about the bishop? Does he get a magic tour?

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