This is a list of puzzles that cannot be solved. An impossible puzzle is a puzzle that can not be resolved, either due to lack of sufficient information, or any number of logical impossibilities. * 15 puzzle – Slide fifteen numbered tiles into numerical order. Impossible for half of the starting positions. * Five room puzzle – Cross each wall of a diagram exactly once with a continuous line. * MU puzzle – Transform the string MI to MU according to a set of rules. * Mutilated chessboard problem – Place 31 dominoes of size 2×1 on a chessboard with two opposite corners removed. * Coloring the edges of the Petersen graph with three colors. * Seven Bridges of Königsberg – Walk through a city while crossing each of seven bridges exactly once. * Three cups problem – Turn three cups right-side up after starting with one wrong and turning two at a time. * Three utilities problem – Connect three cottages to gas, water, and electricity without crossing lines. * Thirty-six officers problem – Arrange six regiments consisting of six officers each of different ranks in a 6 × 6 square so that no rank or regiment is repeated in any row or column. (Wikipedia).
Fun puzzle to ask friends to complete, when they give up, show them the solution
From playlist How to videos!
Two solid blocks of wood. How is this possible? Next puzzle: http://www.youtube.com/watch?v=iXhvmBJKUJA Solution: http://www.youtube.com/watch?v=uyoHQ0F0jak Previous puzzle: http://www.youtube.com/watch?v=pRA4BEDhQto Music by Bertrand Laurence: http://www.bertrandlaurence.com with permissi
From playlist Tricks and Math Puzzles
A Strange Product math problem
Here is a simple problem. Once you find the solution, you might want to try it on your friends, and even your teachers. Have fun! Next puzzle: http://www.youtube.com/watch?v=Jvygw_N_3OI Solution: http://www.youtube.com/watch?v=-Ouyg71Sbjw Previous puzzle: http://www.youtube.com/watch?v=6o-
From playlist Tricks and Math Puzzles
I hope you'll like this one. Next puzzle: http://www.youtube.com/watch?v=6o-f7bh_3VI Solution: http://www.youtube.com/watch?v=LfYbe-8z0LU Previous puzzle: http://www.youtube.com/watch?v=cuti8B76HVI
From playlist Tricks and Math Puzzles
The Impossible Object solution
Here's the solution to this problem: http://www.youtube.com/watch?v=793Ju_fdfVs I hope you enjoyed it! Next puzzle: http://www.youtube.com/watch?v=iXhvmBJKUJA Music by Bertrand Laurence http://www.bertrandlaurence.com with permission. Find me on FaceBook: http://www.facebook.com/pages/YouT
From playlist Tricks and Math Puzzles answers
Killer Math Problem With An Unbelievably Elegant Solution
Did you know some math problems were used to discriminate against groups of people? This is one such problem, and it stumped me! But it has an unbelievably elegant solution. Take any equilateral triangle and pick a random point inside the triangle. Draw from each vertex a line to the rand
From playlist Math Puzzles, Riddles And Brain Teasers
The Nearly IMPOSSIBLE Enigma Puzzle!!
Today I'm going to attempt to solve the Super difficult (Once considered impossible) Enigma Puzzle by Hanayama, this has a level 6 (10) difficulty rating, which is among the hardest Puzzles offered by Hanayama. Buy It Here: https://www.puzzlemaster.ca/browse/inventors/vaughn/308-cast-enig
From playlist Puzzles!
Solving the Unbelievably Frustrating Object (UFO Puzzle)!!
Today I'm going to attempt to solve the Latest Puzzle from Hanayama, the UFO puzzle. This puzzle has a 4 out of 6 stars difficulty rating and with every Hana Puzzle, they are always pretty tricky. Check out the puzzle below. UFO Puzzle: https://www.puzzlemaster.ca/browse/wire/metal/12748-
From playlist Puzzles!
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From playlist Puzzles
!!Con 2018: If you could solve this word tile puzzle, you could... by Kamal Marhubi
If you could solve this word tile puzzle, you could solve the halting problem! (Too bad you can’t!) by Kamal Marhubi The idea that there are undecidable problems – ones that simply cannot be solved with computers – is kind of mind-blowing. The most well-known is the halting problem: given
From playlist !!Con 2018
Solving The Best Killer Sudoku you'll find anywhere
Simon takes a look at this incredible killer Sudoku from Serkan Yurekli from the site www.gmpuzzles.com. This puzzle was voted the best killer Sudoku of 2017.
From playlist Killer Sudoku guides
CAMEO APPEARANCE of yet ANOTHER EQUILATERAL TRIANGLE within the context of building equilateral triangles of 2 sides of any triangle. 😮How to prove? 🤔Source: Antonio Gutierrez. geogebra.org/m/TH8ZZhRE #geogebra #MTBoS #ITeachMath #geometry #math #maths #proof
From playlist Geometry: Challenge Problems
The Charm in Proving Something is Impossible: a Complexity Theoretic View by Nutan Limaye
PROGRAM SUMMER SCHOOL FOR WOMEN IN MATHEMATICS AND STATISTICS (ONLINE) ORGANIZERS: Siva Athreya (ISI-Bengaluru, India), Purvi Gupta (IISc, India), Anita Naolekar (ISI-Bengaluru, India) and Dootika Vats (IIT-Kanpur, India) DATE: 14 June 2021 to 25 June 2021 VENUE: ONLINE The summer sch
From playlist Summer School for Women in Mathematics and Statistics (ONLINE) - 2021
Can you solve this hard logic puzzle? Who lost the 4th game?
Thanks to Omer from Israel for suggesting this type of puzzle! Three friends rotate playing 1-on-1 basketball games. If A played 8 games, B played 11 games, and C played 15 games, who lost the 4th game? It seems impossible but you can logically figure it out! My blog post for this video h
From playlist Logic Puzzles And Riddles
2.7 Million Views: Now For The Sequel!
Aad van de Wetering's follow-up to his "A Sudoku With Only 4 Given Digits" puzzle has, predictably, only 4 given digits: https://cracking-the-cryptic.web.app/sudoku/Fb3fH2MB6n Rules: Normal sudoku rules apply. Cells connected by a knight's move (in chess) cannot contain the same digit.
From playlist Aad Van De Wetering Puzzles
Is it possible? Simple questions, not so simple solutions
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From playlist Puzzles
Math Explorations Ep26, Hamilton Circuits (Apr 12, 2022)
This is a recording of a live class for Math 1015, Mathematics: An Exploration, an undergraduate course for non-technical majors at Fairfield University, Spring 2022. The major topics are voting, gerrymandering, and graph theory. Handouts and homework are at the class website. Class web
From playlist Math 1015 (Mathematical Explorations) Spring 2022
This Is Not Impossible! Solve For The Triangle's Area
This is a delightful problem. Find the area of the triangle defined by the four squares. It seems impossible but it can be solved with the right perspective. Can you figure it out? Sources Puzzle by Catriona Shearer https://twitter.com/Cshearer41/status/1027844515338616832 I read it on t
From playlist Math Puzzles, Riddles And Brain Teasers
Can you make a rectangle from one of each? Why or why not?
In the game of Tetris, there are 7 pieces, each made up of 4 square units. (The shapes are called "tetrominoes" in mathematical literature.) Here's the puzzle. Can you use one of each piece to form a 7x4 rectangle? If so, find a way. If not, prove why it's impossible. Thanks to Doctor Perk
From playlist Math Puzzles, Riddles And Brain Teasers
Solving THE IMPOSSIBLE BOX (Genius Level Puzzle)
1ST Shop: https://www.1st.shop/ Impossible Puzzle: https://www.etsy.com/ca/shop/TheImpossibleBox?ref=profile_header Today I'm going to attempt to solve this level 10 Puzzle box Names "The Impossible Box" Alpha Enigma by a Puzzle creator I found on Etsy. This is simply one of the funnest p
From playlist Puzzles!