The Double DisambigYouWhat??? The Rarest Chess Move!!
ฝัง
- เผยแพร่เมื่อ 6 ก.ย. 2024
- Originally posted on MoreGMHikaru it got so much love we moved it over here to see what you think. The original video: • The rarest move in chess
👍LIVE MOST WEEKDAYS ON KICK ►www.kick.com/g...
♟️ LEARN CHESS & PLAY WITH ME ► go.chess.com/h...
🎁 GIVE 💎 CHESS ► www.chess.com/...
🎞️ VODS AND MORE GMHIKARU ► www.youtube.co...
💜 TWITCH ► / gmhikaru
📸 INSTAGRAM ► / gmhikaru
🐦 TWITTER ► / gmhikaru
✨ TIKTOK ► / gmhikaru
💛 DISCORD ► / discord
💙 FACEBOOK ► / gmhikaru
💚 SUPPORT ► streamlabs.com...
🤣 REDDIT ► / hikarunakamura
━━━━━━━━━━━━━
👌Channel Management ► Team Hikaru
📧 Global Business contact: TeamGMHikaru@gmail.com
#gmhikaru #chess #reaction
![POLYCAT - ข้อความรูปยิ้ม [Music Video]](http://i.ytimg.com/vi/lBhIgPGCgbI/mqdefault.jpg)
Thanks for watching my video! Fun to see these moves happen in a game! Boy it sure takes a lot to coordinate it
Subbed. I quite enjoyed your process of parsing the rarity. Very succinct. I'll check out more for sure. Ah, well you only have three but they look interesting as well.
@@6ic6ic6icdef do. his other vids are really well done
dude amazing video. not to poke holes in your videotoo much but i am not sure 16:08 is a disambiguation. only one bishop could achieve checkmate there, so Bg2# would be sufficient information. perhaps the notation on the sites showed differently in your data, but i would argue that is an error on their part if so. what's interesting then is whether a doubly-disambiguated bishop NO-capture checkmate is possible to occur. it would seem that you could not have a discovered mate for that to be possible, since you would need some other bishop that could achieve the checkmate if moved. maybe there is a square formation or all directly next to each other or some other creative configuration. if so then i would argue THAT would be the "rarest" move in chess, even if it has never happened it would prove less likely to be able to happen imo than the other options. maybe i am wrong though, again great vid and well thought out!
That was amazing! 🎉 Great video.
Won’t be “rare” for much longer lol now people will be doing it on purpose might need to make a new video to show the new rarest move😂 it will soon be out dated
I’d feel so pathetic losing like that. Even the term just sounds like an insult. “Double disambiguation upon you, double disambiguation upon your cow, double disambiguation upon your whole family”
what did i do-
@@figure6044 I don't know, but double disambiguation upon your firstborn!
"You are not a FIDE master and you will never bring your family honor!" 😅
"Oh no I don't want to be double disambiguated"
-one girl 3 men
@@ChraO_o DVDA
N7xd5# was a single disambiguation blunder
When you have a single disambiguation, look for better.
💀💀💀💀
I actually couldn't believe my eyes, he set up the impossible and took with the wrong knight 💀💀💀 his opponent must have been like "this guys trolling, there's no way"
Bro literally played N7xd5#??
🤣
"He didn't play badly, he just got double disambiguated" 🤣
🤣🤣😂😂
Didn't discombobulate though 😂😂
17:05 the video "we have to look at several billions more games before we see this happening"
meanwhile hikaru "ok boys, we have a job to do"
Almost does it first time and gets it 2nd time trying 😂
I hope double disambiguation has a long meme life with Hikaru, like "juicer", pushing P, big black center, wooden shield, etc. it just has such a goofy ring to it. "I'm going to double disambiguate him" is new Hikaru lingo for "I'm going to humiliate him"
It has "end him rightly" energy
"-You thought i was going to ambiguate him? Fools, i will *double* disambiguate him!-"
I hope Arshkarpoor is proud of himself. He made the rarest contribution to chess history. More rare than becoming a champion
Funny how Hikaru can figure out how to get into a double disambigu-mate position so quickly, but can’t figure out which piece should make the final blow. That’s elementary, my dear Watson.
he just got tunnel-visioned in the end
Look at the smile he does when he says it at 48:06. He’s fucking with chat for the engagement dude
A car and a candy bar both cost $100 to him
@@hamblance5938Mildly evil
@@hamblance5938 yeah he definitely just fucking with chat that round
Poor guy probably thinking "Holy shit I'm holding my own against hikaru" while hikaru is thinking "How do I double disambiguation knight capture checkmate this guy"
Other GMs: I’m going to study hard and rearrange my life to have a chance to improve my rank in the next tournament.
Hikaru: double disambiguation goes brr…
😂
It got sick? Lol
-Do you know the arshkarpoor?
-Oh, Yeah. Was this the guy who was famously double-disambiguated by Hikaru?
-Correct.
Dude was double double-disambiguated, in back to back games. What a sport, taking two for the team.
double-disambiguated bishop-no-capture is now the rarest. requires discovery. superb video btw.
no, that is the one that did occur once. The discovered mate. A DDB yes-capture mate hasnt happened
just finished the video, he did a DDBYC#. They are now all equally rare
Never thought I'd be yelling at my screen trying to stop Hikaru from playing the wrong move
That game between n_markus_n and mauliliusmius looks like markus was deliberately going for a doubly-disambiguated mate too, the way he promotes two pawns to bishops and the middle one to a queen.
It could just be that he was trolling with the underpromotions and did it completely accidentally.
I wasn't expecting to open a chess video and get hyped for a rhurbarb flavoured pizza
You'd be surprised how well it would work. Depends on how the rhubarb is prepared though. Raw just thrown on wouldn't be cooked and bitter. But a sweet, habenero pickled rhubarb would be delicious on a pizza. You get the 3 s's. Sweet, salty spicey. The sweet will overpower the bitter, the spice balances the sweet, and the salt makes it more savory and flavorful of course. It's not a bad idea. The rhubarb preparation is the biggest factor. But I would think it would need to be a bit spicy to be done right
Now Hikaru should try a doubly disambiguate checkmate of some kind in a tournament game and make chess history.
rip your comment got stolen :(
They’d resign well before it happens
I think the doubly disambiguated bishop NON-CAPTURE checkmate would be harder for Hikaru to pull off. Would love to see it done.
It's rarer but I think easier to force since it can rely on a wall of 3 rooks blocked by a bishop. It doesn't require a central blocked pawn.
@@markshelor3991 Yeah, just keep the king up against the edge (stuck on the 8th rank with no other options), then move the bishop to open up a checkmate.
The guy who delivered a double disambiguation bishop non-capture checkmate is a legend. What an ending position to that game.
Arshkarpoor is a legend for playing all three games to the end
36:20 rarest move in chess
when he mated with the wrong knight i instantly recreated the 💀 face - how is he so smart and yet he misunderstands the whole point of the twenty minute video and the challenge?
Those last steps were the most intense. I don't understand how he was able to tell what to do to reach that point, but in those last 3 seconds' I was able to feel that i'm smarter.
It was probably a reflex lmao
Imagine setting up a double disambiguated knight capture checkmate but then blundering the single disambiguation knight capture checkmate lmao could not be me
When you see mate in one, look for double disambiguation.
DOUBLE DISAMBIGUATION!!!!!!!!!!!
This comment was made on the main channel of the disambiguation video.
Levy ahh title
HAHAHA true @@bowlofwhiskey
Double disambiguation speedrun🙏🏽🙏🏽🙏🏽
im gonna touch u 🙏🙏🤣
28:50 Figures out the perfect sequence to setup knight double disambiguation capture checkmate with the speed of a 15th gen hexacore processor then proceeds to move a single disambiguated knight. [Facepalm] Tragic!
If I were the loser in that game I would say G*G*, GG but it would stand for "goodness* gracious*" with two disambiguations on the G's
14:24
"Knight is too sexy"
-💀 Hikaru
Paralogical: "NEVER BEEN PLAYED BEFORE"
Hikaru: "And I took that personally..."
This is crazy 😅
28:40 me stabbing my eyes out at 2am
"time to double disambiguate somebody" is a line i thought i would never hear hahaha
GM < GM that checkmate with double disambiguation
It would take me a life time figure out the set up for these rare moves
the fact its so rare that he dosent even know how the disambiguation realy works is honestly funny
That guy in the video is so kucky man bro got to play against Hikaru and do such a legendary thing on top
26:07 don't you love when Hikaru enters the Hikaru state?
To lose by one of these moves is the highest level of disrespect.
"Oh no, did you just get double disambiguated knight checkmated? That's so embarrassing my god 😭"
but discovered checkmate with 3 bishops could be also capture if there was a piece on target square of bishop
And he sacrificed..... THE DOUBLE DISAMBIGUITY!!!!!!
First, distract target. Then block his blind jab. Double disambiguate *claps ears*
wow, I have seen this video already before your video, really liked that you played the moves in real game XD Thank you
Hikaru premoving his reaction
By brain went dead after watching double D throw down calculations by Hikaru.
Hikaru was so locked in on building the setup from the video that he missed forcing the king to h8 for the bishop checkmate
Opponent is fighting for his life while hikaru is trying how to double disambiguate😅
Must be wondering why's this grandmaster making knight squares on me
16:08 is not disambiguated, since there is only one bishop move that leads to checkmate. Just Bg2# is enough information, because if either of the other two bishops are moved then there is no checkmate.
Thats actually a very good point.
According to Lichess at least, it’s disambiguated move. It doesn’t matter which one of the 3 moves leads to checkmate, it’s about notating a move. If you notate a move as Bg2#, you gotta choose the correct bishop according to a situation instead of brainlessly moving a piece that’s given in the notation
Checkmate happens after the fact. The point is that any of the bishops could move to g2, which doubly disambiguates it. You are correct that bg2# would be enough information, but I think that because the # sign is at the end of the notation, it needs to be specified by the computer which bishop first, before the checkmate.
Technically there is enough information for it to be not disambiguated, but standard chess notation disambiguates checks/captures/checkmates like this anyway for convenience.
If checkmate didn't "happen after the fact", often # would be enough, as many positions only have one checkmate
You double-double-disambiguated that player
Isn't a repost?
In the description it says it was posted on the 2nd channel but with far less subs, it seems we should've posted it on main because it got a lot of views.
@@GMHikaruhikaru premove this response 😭🙏
They double disambiguated the video
@@GMHikaru How???
@@GMHikaruShould've been posted sooner then
The best video I've ever seen in my life!!! Seriously enjoyed this one
The look on your face when you screwed up the double disambiguation... it's like a whole new category of blunder you've discovered!
I now expect double disambiguated to be add to the daily urban dictionary of hikaru
20:41 calculating mate once the opening is over
Video : these are rarest chess moves that didn't even happen in billions of game
Hikaru : here u go
“Which we already know, is rhubarb “ 😂
The bishop plays not possible because the king would have to already be in check.
There should be something like a doubly disambiguated bishop promotion checkmate
You can't have a doubly disambiguated promotion unfortunately, as pawns can only promote from the 7th rank. In fact, pawns can never get a rank disambiguation, since 2 pawns that are on the same file and different ranks can never move to the same square, so they cannot be ambiguous.
I was expecting the original video to mention double checkmates. Even though there is no notation AFAIK to say that both pieces give a check and a checkmate it still makes it more unique than a single checkmate. Combining this with double disambiguation move would make it even rarer?! @GMHikaru you have a new challenge! Also we should petition for double checkmate notation because it’s cool and rare.
Well, I just spent 5 minutes trying to figure out how you can set up a double discovery, and now my brain hurts.
@@jamieevans5979 haha I didn’t really think it through 🤭. The best I have is a pawn taking something and promoting to a queen at the same time discovering a double mate. Although there can be 3 queens going to pawn promotion square we don’t have to disambiguate the pawn move. I think I’ve convinced myself that it’s not exactly possible if we stick to this notation. The problem is with notation. It’s meant to disambiguate moves. If we see from the engine evaluation point of view of how many squares are attacked, etc then the answer might be different but that makes the question different as well: what’s the rarest position rather than rarest notation. I guess I digress.
@AI-xi4jk That's what I was thinking. Rarest position. Yeah a pawn promoting, checking and opening a discovery the same time would do it. It seems like it should be so easy to imagine loads of possibilities, yet my brain still hurts 😆
Why is Ne3xd5# double disambiguated? Taking with the knight on e7 can’t lead to a checkmate (because the king can go to f6), meaning that the notation Nexd5# (ie the single disambiguated one) should be enough
It likely has to do with how the code works. It likely determines whether it is check/checkmate after checking all of the regular notation, and just appends a “+” or “#” character to the end of the string.
Dis-ambiguate is to get rid of ambiguity, so it’s the clarification of the rank and file in the notation which is double because you need both
10^20 is a ridiculous guess for the number of legal moves
The actual number is somewhere around 37,000
A rough estimate for doubly disambiguated moves:
If you have 64 squares, 2 capture states (capture or not), 3 check states (none, check mate), 4 pieces (QRBN) and 20 origin squares (an over-estimate for all but queens) you get 30,720 moves
Pawn moves:
16 promotion squares without capture (a1=Q, a8=Q, etc) * 4 promotion options (QRBN) * 3 checking states (nothing/check/mate)= 192
28 promotion squares/origin files with capture (axb1=Q,cxb1=Q, bxa8=Q, etc) * 4 promotion options * 3 checking states = 336
8 files to advance per rank * 6 non-promoting ranks (2 through 7) * 3 checking states = 144
14 captures per rank * 6 non-promoting ranks * 3 checking states = 252
Total: 924
Castling: 2 directions + 3 checking states = 6
Piece moves (without disambiguation): 64 squares * 5 pieces (KQRBN) * 2 capture states * 3 checking states = 1,920
Total without disambiguation: 2850
I'm not going to do the exact math for disambiguation (I did it elsewhere and got a total around 36,000 but I think I was missing some moves) but this number plus my double disambiguation estimate above should give you a rough guideline
Disambiguation is very complex to calculate precisely because some moves (eg a knight into the corner) never require double disambiguation and some moves (eg a bishop into the corner) never require disambiguation at all. Some destination squares can have more or fewer origin squares (eg a bishop into the center has more origin squares to possibly disambiguate than a bishop to the side of the board).
Going the other way, we can ignore captures and checks because the game state tells us whether something was a capture or a check
If we ignore disambiguation of pieces (but not pawns) as a notation requirement and not a real difference in the move, we can calculate the smallest set of moves that could be said to be complete:
Pawns:
16 promotion squares without capture * 4 promotion options = 64
28 promotions with capture * 4 promotion options = 112
8 files * 6 non-promoting ranks to advance = 48
14 captures per rank * 6 non-promoting ranks = 84
Castling: 2
Piece moves: 64 squares * 5 pieces (KQRBN) = 320
Total: 630
If we ignore the pawn origin for the same reasons as ignoring the piece origin, we effectively shave off all the pawn captures and get a total of 434
Gotta do the double disambiguated bishop non-capture mate. That's with the discovered attack
Now that 191k people have seen this video, I doubt those are the rarest moves in chess anymore.
I was about to get a heart attack when he almost used the wrong bishop
data: NEVER DONE
hikaru: not on my watch!
One thing is certain, I learned a new word today "disambiguation"
Like in the markets, statistics change whenever people are aware of them.
now he has to do it with the double disambiguated bishops 2 times so this one actually be the rarest xD
0:50
Hey, Hikaru, now that you've said that can you say "Zhara Larsson" "Man" "I" "Love" "Fuh" "King"
Please.
Thanks for this interesting upload, must have been gutted when you had the right setup but didn't get the annotation >
Happy to see the repost. One of the most fascinating videos on the channel!
bro understood the mission
lol i got castling checkmate
6:57 We have 2 queens on the 8th rank so it can't be Q8e6 and we have 2 on the c file so its Qc8e6
i thought the rarest move is gonna be vertical castling. I believe it was played only once and FIDE changed rules.
Now would it be possible to force a double disambiguation capture of a double disambiguated bishop for mate???
LOL 28:41
I'm impressed he got the position he needed though.
Important note: these moves are only rare due to the arbitrary way in which ppl record chess moves. If they had decided to write Nd4f6 no matter how many knights were on the board, this video would never have been made. Honestly, if the ppl had simply been logical, the notation would look like this: d4d5 (this would simply mean that whatever was on d4 is now on d5 whether that thing was a rook or pawn or queen - this is a much better means of notation as it doesn't require you to make certain that no other piece could move to that location). There would be no need to disambiguate b/c nothing would be ambiguous. There's no need for any checks or mates to have special annotations either, no matter how the moves are recorded. In that more logical world, this video would have been something else - maybe an attempt at a checkmate using 9 queens.
I don't believe that Hikaru doesn't know this, but for lots of ppl in here: It isn't the knights/bishops themselves that are "disambiguated." The fact that the notation, "Nf6" would NOT tell you which knight you moved to f6 if there were multiple knights that could move to f6 makes the notation "Nf6" inherently ambiguous. So, if instead of writing "Nf6" you wrote "Nd4f6," it would no longer be ambiguous as to which knight you moved. Therefore, the notation "Nd4f6" disambiguates. Doubly so, as the notation implies that there's at least 1 other knight on the f file and at least 1 other knight on the 4th rank.
I’m blown away that you can watch a video showing something that has never happened and just be like
“Okay I’ll do it this game”
Well played sir
You also have to make sure all three nights are promoted
In the rare move 4 i think he is mistaken because not every knight move keads to checkmate. So Ndxe6# or Nfxe6# are checkmates so no need for Nd4
The existence of the 3 knights opening guarantees the knight one is not rarest. In fact that one has probably happened, more than once, while the triple disambiguated bishop revealed checkmate probably has not happened once outside of people goofing off and chess puzzles.
He was mad he didn't win the bet so he put his finger on the scale
The detail on the right hand after the lightning strike 🤣
😂😂 look at hikarus face, he just got outchessed in a way he couldn’t even image. I’m a big fan of math videos
Man i feel bad for this 1000 elo player getting chased around by hikaru with 3 knights and a queen lol he must have been so confused when he stopped to think for 2 minutes in this position after basically premoving the entire game
A double disambiguation rook capture checkmate is also possible, and must be rare.
How often do you under promote to a rook when you already have two rooks on the board?
But even more rare than a double-dis capture with mate, must be the double-dis stalemate.
Stalemates are rarer than checkmates.
What is Hikarus iq. Dudes literally a genius
Both Hikaru and Levy took an IQ test forever ago and they both scored 102 I think.
@@AlienBrospretty sure Hikaru is trolling and doesn't actually believe that
Probably high but I’m still so surprised he didn’t understand disambiguation that fast
Came here for the rarest vhess move... and found out Jerry West died.... RIP
Imagine getting trick shotted on chess
However, Hikaru cannot say he has performed THE rarest chess move, as he has TIED whoever performed the Doubly-Disambiguated Bishop Non-Capture Checkmate, as the rarest. Hikaru will now need to also win with a Doubly-Disambiguated Bishop Non-Capture Checkmate, thereby ruining that move's chance to be the rarest, and then win with a Doubly-Disambiguated Knight Capture Checkmate, whereupon only then can he say that he has performed the rarest chess move, albeit with two different moves. Go for it, Hikaru! It's one thing to be unique, but it's quite another to be unique, twice.
For a game like chess wouldnt it be something like a brilliant check mate or a insane idea move instead a stupis move that does nothing for you we want to see a cool good move thats super insane this why i dont think the pizza thing wouldnt work
Shouldn’t promotions be included to increase the rarity? Like wouldn’t all of these moves be even more rare if they were also promotions?
that would make most of those moves impossible as you cannot get a setup in which it is mate and also a promotion and promotion mates I assume are much less rare then these specific moves
I actually played Nxa1 in one of my recent games (and won) and hearing Hikaru thinking that may be one of the rarest moves makes me proud for some reason and I feel like that's kinda stupid but who cares.
It's funny: The more people see his video, the more will try to specifically create those moves, making them less rare.
another one not mentioned is a disambiguated bishop promotion capture checkmate
I don’t think it’s nearly as rare but I might be wrong
A promoting bishop doesn’t need to be disambiguated
@@bulbazaurrex1898 it does if two different pawns on the same rank can capture the same piece, that’s why my comment mentions a capture
@@garrethecker4427 True
if hikaru were to play an fps game he would dominate just bc he has a ton of aim practice with chess
actually bricked the data :D
Other players- oh we should prepare for the upcoming tournaments,
Hikaru- chat, chat how do I disambiguate? 😂
29:05 why this opponent looks like Magnus in disguise 😂
Oops, found his profile, it was a joke, and now arshkarpoor has Hikaru on photo
That look of frustration when doing it with the wrong knight 🤣