I remember that avogadro's number has something to do with converting weight into atoms, and that is 6. So we take the average again and assume the average star size is about times bigger than our sun. The point is that just by estimating, we have figured out that the number of chess positions isn't even close to the number of atoms in the universe, but it is probably pretty similar to the number of stars in the universe.
There are symmetries which can lower the number of positions to be analysed. This is explained in a very interesting paper in French :. Chess is infinite: there are different positions after each player makes one move apiece.
More than 9 million unique positions from the third move. Many move games on Level-1 can be achieved than the number of electrons in our universe.
I wonder how many positions there are when you eliminate the ones that even a beginner wouldn't make. Or redundant ones. Great feedback from everyone! A few things to address. Next, the difference between observable universe and non-observable universe is too great to measure. Remember addition by subtraction. Also, too after posting I also realized you have to double the number in two if you want to include White to move or Black to move.
The maximum number of zeroes after 97 is Also this post was in regards to the number of positions possible not number of different moves possible which obviously will be larger and even more complicated to analyse due to different positions being able to be reached by different move orders. Forums General Chess Discussion. Oct 22, 0. And after some time I came up with this number: 97,,,,,,,,,,,,,,,,,,,,,, To put this in perspective if you live to and you start looking at these positions right after birth stop sucking that bottle kid and get to it you would have to view 30,,,,,,,,,,,,,,,,,,, positions per second in order to see every position in your life.
Or as of midnight last night the world population was 7,,, according to. If everyone currently looked at them for years we all would need to view 4,,,,,,,,,,,,,,,, per second Or according to there has a total number between to billion people to have ever been on planet earth not including aliens. Figuring on the high end, if billion people that was ever born on planet earth looked at them for years all of us would need to view ,,,,,,,,,,,,,,, per second So now, I leave up to you scientists.
I thought it was electrons. So 10 to the power of 88 is However the amount of predicted chess postoins is way bigger. Yeah its a pretty complex subject. I can understand its a statistical thing made possible by many repeating moves and situations but still it does not sit right with me and I am hoping it is refuted somehow in the future. To think of the amount of atoms in a grain of sand then to think of the amount of atoms in the universe Maybe its all above board but I do not like it!
Maybe the universe is smaller than I have always imagined or I cannot properly imagine the enormous numbers involved. All those possible chess moves and still I let my horsey get eaten for free And music too with its astronomical variations and still I cant sing. Our galaxy is a medium sized galaxy. Think of it this way; next time you go to the seaside, grab a handful of sand, or dig a hole in the sand. Millions maybe?
Now look at the whole beach and try to guess how many grains there are. It is thought that there are more stars in the universe than grains of sand on every beach on Earth. Most of those stars have at least one planet, often many more, orbiting. So there are even more planets than stars Astronomers and Astrophysicists deal with lots and lots of data and as technology improves the amount of data collected increases.
When it begins operation it will take more than panoramic images each night with a 3. Each night it will produce 20 TB of data. How big is a TerraByte? I hear you ask SO much data, you say? Because it is more than a human can cope with, trainable neural networks are needed to help with classifying objects and suggesting to Astronomers those that might be interesting to look at more closely.
The European Southern Observatory has developed Morpheus: a deep-learning framework that incorporates a variety of artificial intelligence technologies developed for applications such as image and speech recognition. To help astronomers, Morpheus will work pixel by pixel through the images looking for galaxies! An Older Morpheus result from , working with Hubble, revealed that here were 10 times more galaxies than previously thought. Researchers at Lancaster University have developed at system called Deep-CEE Deep Learning for Galaxy Cluster Extraction and Evaluation , a novel deep learning technique to speed up the process of finding galaxy clusters.
First discovered in by George Abell, galaxy clusters are rare but massive objects. Abell spent years scanning photographic plates with his eye and a magnifying glass and found 2, clusters.
Galaxy clusters are important as they will help us understand how dark matter and dark energy have shaped our universe. I would agree. Hendy Hendy I thought he was asking for games of moves or less , not moves or more. Mike Dunlavey: ever had that feeling where you feel like an idiot? The numbers are all there, though. Am I getting that right? Hi, I just wanted to add that in Chess a "move" is two "plys" by either side. A move consists of both black and white making a move.
I think that's where the disparity comes from between true and false. Vian: I tried to figure that out myself and wasn't sure, but I did make the assumption that Shannon had it right when he provided the figure for games 40 moves or less, so I don't think our definition of "move" affects anything as long as Shannon got it right -- we have all the numbers necessary at this point to answer the question as far as I can tell.
A 40 move game in chess means each player has 40 turns. The Wolfram site is misreporting its references. Show 7 more comments. Good answer but seems to be missing the number of atoms in the universe. Although every other answer has listed it, they could theoretically be deleted When I read your opening line, I thought you were about to derive something Hendy I totally agree with your observation. Douglas Stones's answer is the best, because he tries to prove it.
But my first line is more toward the moderators, who ban logic-based answers in favor of links to other sites. Show 3 more comments. The question was about move games. For move games there would of course be a bigger number as you say. Yeah, didn't realize that at the time, but I guess in a way it does still get the point across. In a backwards sort of way that is. MikeDunlavey In chess, a 40 move game means each player has 40 move, so 80 branching events, with an estimated 35 branches per node.
Mike Dunlavey Mike Dunlavey 1, 1 1 gold badge 9 9 silver badges 12 12 bronze badges. This assumes an average branching factor of This seems much too low, because even for the first move you have 16 different pawn moves and four different knight moves, giving you a total of 20 legal moves. In the mid game, there should be on the order of 30 to 50 different moves — Lagerbaer.
Lagerbaer: You're welcome to argue with the link. MikeDunlavey the link misreports its sources, as I explain in my answer. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Linked 3.
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