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Use this forum to post questions about math problems. This can include general questions about pure mathematics and applied mathematics. Club members are invited to post solutions or answers to your questions. If you have questions or comments about how we run the Math and Chess Club, use the following link. Math and Chess Club Suggestion Box You can also create a new forum topic for the Math and Chess Club or chess.com. Math and Chess Club Forum Chess.com Forum

Welcome to the Math and Chess Club! Links on the Info page are organized by color. Chess.com links are purple. Wikipedia links are the default color (blue on most computers). Other website links are orange. New and updated links are italic. CHESS LINKS Anyone that abides by fair play rules is invited to play chess for our team. Admins and Coordinators are eligible to join our Administrative Club. Members must follow the Community Policies and Fair Play Policy. Opening databases and opening books are permitted in Daily Chess and Vote Chess, but the use of engines and tablebases is never permitted. Fair Play and Cheating (Chess.com Support) Fair Play and Cheat-Detection (Article by Chess.com Help) 🤔 How many different chess positions are there? 🤔 How many different chess960 positions exist after one move by each side? 🤔 Geometric Chess Puzzles 🇳🇴 Magnus Carlsen | World Rank #1 🇨🇳 Ding Liren | 2023 World Champion 🇮🇳 Gukesh Dommaraju | 2024 World Champion 🇨🇳 Ju Wenjun | Women's World Champion ♟️ PRO Chess League ♟️ The Youngest Chess Grandmasters In History ♟️ FIDE Top 100 Player Lists List of top players in Standard, Rapid and Blitz competition List of top players in Open, Women, Juniors and Girls categories ♟️ United States Chess Federation Top Player Lists ♟️ Wikipedia Chess Links List of World Chess Champions Comparison of top chess players throughout history List of female chess grandmasters FIDE world rankings List of chess players by peak FIDE rating List of FIDE chess world number ones MATH LINKS ♟️ International Mathematical Union Fields Medal (IMU) Fields Medal (Wikipedia) ♟️ American Mathematical Society ♟️ Mathematical Association of America American Mathematics Competitions ♟️ International Mathematical Olympiad IMO Problems (in English with recent problems in various languages) IMO 1988 problem 6 and IMO 2017 problem 3 are notoriously difficult. International Mathematical Olympiad (Wikipedia) ♟️ Clay Mathematics Institute Millennium Prize Problems ♟️ Math and Science News Websites MIT News | Mathematics New York Times | Mathematics Phys.org | Mathematics Quanta Magazine | Mathematics Science Daily | Mathematics Science News | Mathematics Scientific American | Mathematics WIRED Magazine | Mathematics Popular Mechanics | Mathematics The 10 Biggest Math Breakthroughs of 2019 ♟️ Wikipedia Mathematics (links to all Wikipedia math pages) List of unsolved problems in mathematics The club picture is a rotating fractal tesseract. ♟️ On-Line Encyclopedia of Integer Sequences OEIS Sequence A000040 (prime numbers) OEIS Sequence A000045 (Fibonacci numbers) On-Line Encyclopedia of Integer Sequences (Wikipedia) List of integer sequences (Wikipedia) ♟️ Doing Math With JavaScript Prime Factors Calculator Big Integer Calculator (100 or more digits) One googol is 10100, which is 1 followed by 100 zeros. The largest prime number less than one googol is (10100) – 797 = 9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999203. The smallest prime number greater than one googol is (10100) + 267 = 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000267. ♟️ Prime number Mersenne prime In binary, a Mersenne number is a positive integer where every digit is a 1. Great Internet Mersenne Prime Search As of December 2020, the largest known prime number is (2^82,589,933) – 1. In binary, this number is represented by 82,589,933 consecutive ones. Sieve of Eratosthenes ♟️ Set theory List of set theory topics Ordinal number Cardinal number Ordinal numbers up to ωω ♟️ SAPAVIVA The 100 Greatest Scientists 1. Isaac Newton 2. Leonhard Euler The 50 Greatest Mathematicians 1. Leonhard Euler 2. Carl Friedrich Gauss 🎂 Math Birthdays Isaac Newton (4 January 1643) | Calculus Leonhard Euler (15 April 1707) | Euler's Identity Carl Friedrich Gauss (30 April 1777) William Rowan Hamilton (4 August 1805) | Quaternion Karl Weierstrass (31 October 1815) | Weierstrass function Bernhard Riemann (17 September 1826) | Riemann hypothesis Georg Cantor (3 March 1845) | Set theory Sofya Kovalevskaya (15 January 1850) David Hilbert (23 January 1862) | Hilbert's Hotel Ernst Zermelo (27 July 1871) | Zermelo's theorem (game theory) | Solving chess Albert Einstein (14 March 1879) | Theory of relativity Emmy Noether (23 March 1882) Erwin Schrödinger (12 August 1887) | Schrödinger's cat Srinivasa Ramanujan (22 December 1887) Abraham Fraenkel (17 February 1891) | Zermelo–Fraenkel set theory John von Neumann (28 December 1903) | Von Neumann universe Kurt Gödel (28 April 1906) | Gödel's incompleteness theorems Paul Cohen (2 April 1934) | Continuum hypothesis Andrew Wiles (11 April 1953) | Fermat's Last Theorem Terence Tao (17 July 1975) | Fields Medal James Maynard (10 June 1987) | Fields Medal ♟️ Gödel, Escher, Bach is a Pulitzer Prize winning book by Douglas Hofstadter. ♟️ Infinity and the Mind by Rudy Rucker Free online browsing edition Updated 6 January 2025

Use this forum to post questions, comments, suggestions or complaints about how the Math and Chess Club is run. This can include new ideas for the club, or things you would like to see the club do in the future. If you have questions about specific math problems or math topics, use the following link. Math Questions and Answers You can also create a new forum topic for the Math and Chess Club or chess.com. Math and Chess Club Forum Chess.com Forum

What we thinking? Gauss? Euler? Newton? Lets have a debate.  Mention the field of math and why the person is the best at the field. Idea from @Maestro_Q

Give a hard math question,whoever gives the hardest wins 1 pi.

What do we want the most 1) More math riddles 2) Daily matches 3) Vote chess 4) Club tournament for prizes  5) Other.. type in forum Thanks for voting everyone! 

Tree(Tree(Tree(Tree(Tree(Tree(Tree(Tree(Tree(Tree(Tree((3)))))))))))

Two patterns for pi in the Torah found today on pi day. Aleph beit gimmel aleph beit gimmel (triplets) #112 Mine. B only. Triplets are another pattern through verse 1. Aleph beit gimmel aleph beit gimmel (triplets) #112 Mine. B only. In the first verse, we take 3 letters at a time, subtract the first two and the last two, and then subtract the two results. We get 1,1,1,4,9,1,11,16,15 and then the last letter is 27. Notice all the 1s and squares of numbers. Also, 11 is a 1 put next to a 1. For the 15 and 27, 27 is 33 and if we switch the 5 and 2, 125 is 53 (25 is 52). For 15-27, 2,5,7,15,17,127,215,217 and 257 are also all one away from numbers that are exponents of small numbers. 512 is an exponent and like above comes from rearranging two digits of 15-27. 15-27 seems to give the maximum amount of these numbers of any four-digit combination. Also we did 1257. Looping the digits around from 7 back 1, the differences are 1,3,2 and 4. These are consecutive integers. They also make pi, so if we have 5217 we get pi or 3.142. 5217 = 3*37*47. 37 is a Star of David number very common in my patterns. 3*47 = 141, giving us 3.141 so we have pi=3.142 and pi=3.141. It is in fact 3.1416.

https://www.instagram.com/rhhs_math/reel/C4gB8cAsD5b/

My IQ is 162 and I am quite curious about what other players in the chess community have scored. Thank you for any responses given.

Hey guys! There's this new video about what 0 divided by 0 actually equals, and it debunks a big misconception. It's actually a great explanation of 0/0, and I can't believe I didn't realize that almost every other explanation I found online was actually wrong. You guys should definitely check it out, and post what you guys think about it here on the notes. Here's the link: https://www.youtube.com/watch?v=gK_R4eOLPq0&t=5s

Angles of the same color have the same measure. What is the measure of the green angle?A) 30 degrees B) 35 degrees C) 40 degrees D) 45 degrees

Greetings everyone. Been having conversations with a flat earther. Please put your collective minds together and tell me where this individual is wrong because I'm honestly stumped. They forgot to include light refraction in the calculation. Just wondering how much of a difference that would make. Here is the data: https://docs.google.com/presentation/d/1gXYi85NM9HxSnZkn4lbYU8rpZbPSXSvacJbsw1DJh48/edit#slide=id.p And here is the forumla: http://walter.bislins.ch/bloge/index.asp?page=Advanced+Earth+Curvature+Calculator

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Comment on the fact math is better than ELA, math's old enemy and it embraces with science!

What is the answer of: 1-5+89 x 9 divided by 2 + 6+9+7+9 -5-4-5-2-7-3-5-4-1-2-3-4-5-6-7-8-9 divided by 0 +1+3+7+8+7+4+9+8+1+9-8-5-3-7-8-2-6-7-3-2-7 divided by 7 +8+0+365758488888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888 x 55555555555555555555555555555555555555555 x 99999999999999999999999999999 + 777777777777777777777777777777777777777777777777777777777777777777777777 =________________________ All you have to do is to put the answer below, okay. Thank you for reading, bye!

Hello. Today I'd like to share a video on king's graphs, a type of graph that represents the legal moves of a king on a chessboard. It is a really interesting application of a strong product of graphs. Please share if you like it. Have a fantastic day! https://youtu.be/H22Bt1n57Gc

Probability Start with a standard deck containing 52 playing cards. Remove the 2 of clubs and discard it, leaving the deck with 51 cards. The questions in this quiz refer to the 51 card deck without the 2 of clubs. Define a face card to be a king, queen or jack. An ace is not a face card. Problem 1) Randomly draw 1 card from the 51 card deck. If the card drawn is a face card, what is the probability that the card is a club? Problem 2) Randomly draw 1 card from the 51 card deck. If the card drawn is a club, what is the probability that the card is a face card? Problem 3) Randomly draw 2 cards from the 51 card deck. If both cards are face cards, what is the probability that both cards are the same suit? Problem 4) Randomly draw 2 cards from the 51 card deck. If both cards are the same suit, what is the probability that both cards are face cards? Problem 5) A probability was computed for problems 1 to 4. Which of these four answers would remain the same if the original 52 card deck was used instead of the 51 card deck?

Let's say 1 and 2 are a1 and a2 in a series. The next number in the series is the sum of the previous 2. For instance a3 =3 and a4=5. Note that a1=1,a2=2,a4=5,a8=34 and a15=987. We have used each digit from 1 to 9 once except 6, plus the numbers are in order backwards and almost in order forwards. The golden ratio is (1 +/- sqrt(5))/2, and the two numbers, one 1 unit more than the other, have the first shared digit of 6. Why 15? a1 is a point, a2 is a line segment, a4 is a square, a8 is a cube, and a15=1+2+4+8, suggesting time.

25(7+6)5-125+(6-7){5+6-7}[5+6-8+4] no calculators or no trophy!