Questions tagged [matches]

A puzzle from 2-dimensional or 3-dimensional geometry centered around matchsticks, often involving moving, adding, or removing some to achieve some defined goal.

Filter by
Sorted by
Tagged with
8
votes
5answers
1k views

Minimize 1×3 tiles on a 5×5 table to block any more 1×3 tiles

What is the minimum number of 1×3 tiles that can be put on a 5×5 table so that no more 1×3 tiles can be put on it? Borders of a tiles are parallel to sides of the table. It is 5 but I can not prove ...
12
votes
4answers
2k views

How many matchsticks need to be removed so there are no equilateral triangles?

The puzzle is as follows [with minor copy edits for grammar]: By only using matchsticks of equal length a set of equilateral triangles has been built as indicated in the figure from below. With that ...
3
votes
2answers
496 views

Matches to move in order to get right roman numeral over fifty

The riddle is as follows: The figure from below represents a set of roman numerals wrote in such a way that the sum is not correct. The numbers are arranged as: 50+12=51 How many matches minimum ...
0
votes
6answers
305 views

Move 3 matches to maximize triangles

The problem is as follows: The figure from below shows 9 matches. If only 3 of them are changed from their positions, then what is the most number of triangles that can be made? The alternatives ...
4
votes
6answers
1k views

Move 2 matchsticks to make the equation correct, and give 3 ways to do so

I am trying to solve the following matchsticks puzzle: Move two matches to make the following correct: You also have to give 3 ways to do so. Despite trying my best to solve this, I wasn't able to ...
5
votes
5answers
814 views

Matchsticks: Fix the Equation

Here's a simple puzzle I just created: Move just one matchstick to fix the next equation:
5
votes
11answers
2k views

Matchstick Problem: Turn 1 into 12 by removing a matchstick [closed]

Below are some matchsticks arranged to display an expression. Your task is to remove one matchstick so that the resulting value of the expression will be twelve.
3
votes
2answers
169 views

How many steps for matchstick-Lychrel numbers?

The Lychrel number is famous in the recreational mathematics. The process about the Lychrel numbers reverses arrangement of the previous number. Mimicking Lychrel numbers, I would like to devise ...
9
votes
7answers
2k views

Matchstick rearrangement: Zero to Hero

Below is an expression that has a value of 0. How can you move only three matchsticks for the resulting value to be 49?
5
votes
2answers
918 views

Move just one match

Make a correct equation by just moving one matchstick! This is the source. Spoiler--source reveals answer.
4
votes
3answers
309 views

Moving matches to produce largest possible number

María Lucía Uribe´s recent match-moving puzzle (Move matches and make largest possible number) begs for the following matter to be settled once and for all. If each of the numbers from 100 to 999 is ...
7
votes
11answers
2k views

Move matches and make largest possible number

a) Move three matches to make the largest possible number. b) Do so moving four matches.
3
votes
3answers
244 views

Matchstick puzzle that may or may not have a solution

Can you find a solution by only changing (moving) one stick? From my point of view I think I systematically exhausted all possible configs and I couldn't find a solution, so I think there is no ...
6
votes
7answers
1k views

Math-stick problem [closed]

Here are 6 matchsticks. You should rearrange them, to make nothing But you should not waste or get other matchsticks
5
votes
1answer
242 views

What was Matt's matchstick puzzle?

Something rather funny happened at our Puzzlers' meet the other day. "Oh hey buddy, can you hand me exactly 18 matchsticks? I wanna show you this new matchstick puzzle I came up with." Matt ...
39
votes
7answers
7k views

9-5=5? Matchstick problem

Move one matchstick to make an equality. Question made by me (Is this too easy?)
10
votes
5answers
452 views

Move just 2 matchsticks to make three equally sized triangles

There are 9 equally sized matchsticks, move 2 to make 3 equal triangles
6
votes
10answers
478 views

Matchsticks 9 + 9 = 8 [closed]

You are given the wrong equation (made out of matchsticks) 9 + 9 = 8 and you can move at most 3 matches. Your aim is to find all possible correct equations. Selected answer will be one that discovers ...
5
votes
5answers
219 views

Move two matches (no [lateral-thinking])

Move two matches to make the following equation correct: Despite it commonly applying to puzzles of this kind, there is no [lateral-thinking] tag here, so no spelling out numbers, no turning the ...
28
votes
7answers
5k views

Unexpectedly Difficult Matchstick Problem

The words say: 听说只有智商高达200的人才有办法打出来 (only people with 200 iq can solve this). 只移动1根火柴让算式成立 (move only one match to satisfy the equation) note: it is not my puzzle and i do not know the solution
18
votes
1answer
744 views

Which number is next? [closed]

Which number will be in the next Box? *Just do not triffle that the numbers are in lighting match format.
8
votes
7answers
4k views

6+8=71 move two matches

How can I make this equation true by moving two matches? It's in a game "Smart Puzzles" - it's called Matches, and there are about 13 different games in it. Additional images - my attempts
-1
votes
1answer
236 views

Matchstick Puzzle [closed]

Move two matchsticks to make 2 E's. (The Matchsticks cannot be stacked onto each other).
0
votes
15answers
14k views

What is ls Largest Number Formed by only moving two sticks in 508?

Tilting the Image is not allowed. You can cannot change order of digits. You cannot change the Size if Digits unless you are harry potter. You can increase or decrease space between digits though. ...
1
vote
5answers
2k views

Move 2 matches to solve this equation, 28 + 3 = 26

Please help me solve this equation, 28 + 3 = 26, I tried plus and minus equations, but I can't seem to solve this puzzle
8
votes
7answers
2k views

Matchstick puzzle with roman numerals

I got a puzzle from a book that asks to move one matchstick to get a valid equation. My "solutions" feels like cheating... Does anyone have a good idea? The original equation, layed out with matches, ...
11
votes
1answer
446 views

Three sticks, three squares

There are 5 squares in this puzzle as shown in picture we have to pick only three match sticks resulting formation of exactly 3 squares. which numbers of sticks should be removed from the formation ...
10
votes
13answers
5k views

A Matchstick puzzle with a little twist

Here is a matchstick puzzle with TWO (possibly more) solutions. There are two types of matchsticks. 1 Short (eight and = sign) Total 9 2 Long ( All ones) Total 4 Please move 3 matchsticks and ...
0
votes
1answer
175 views

Who won against Whom

Five teams from five different colleges- S, K, M, V and N, participated in Champions League (ICCL) played in the year 2008. Each team played exactly one match against every other team. But due to some ...
14
votes
8answers
3k views

Matchstick Puzzles

Puzzle #1: There is a matchstick: | Add 2 more matchsticks to make the number, 11. Puzzle #2: There is a palace made out of 11 matchsticks: Move 2 matchsticks to make 11 squares. Puzzle #3: There are ...
5
votes
2answers
308 views

Self-describing matchstick number

The word "SIX" can be spelled with six matchsticks (if you'll forgive my "S"). What is the next whole number n that can be spelled (in English, in all capital letters) with exactly n matchsticks? ...
31
votes
26answers
26k views

Make 37+32=55 correct by moving one match

Move $1$ match and make this correct. Rules: (added 8/23/2018 based on clarifications in comments) You can't break the match. You can't make an inequality sign, just change numbers and/or operators.
10
votes
6answers
4k views

Correct the equation by moving $1$ match stick [duplicate]

Since $23$ and $7$ both are primes, so I am try to make $23$ to $14$ by moving only one match stick. But I am unable to do this. Any hints will be appreciated. Here note that the line divided by ...
2
votes
1answer
225 views

Riddler: Matchstick Triangles

Starting with an equilateral triangle with 4 matches on each side can you make 2 smaller equilateral triangles by moving just 4 matches? Then can you create 4 smaller Equilateral triangles by moving ...
9
votes
2answers
1k views

Matchstick Squares

Twenty-four matchsticks are used to create a 3 x 3 grid. Can you remove eight matchsticks from the configuration so that you are left with two squares that do not touch each other?
2
votes
1answer
819 views

Moving matchsticks

There are 10 squares in the figure. Move 3 matchsticks to create 17 squares. Squares don't have to be equal in size?
4
votes
2answers
469 views

Turning the Horse Part 3

Here's the sequel to Turning the Goat Part 1 and Turning the Dog Part 2 As Hobble the horse stood on the hillside staring at the hurdle below, he wondered if he would ever have the courage and ...
9
votes
3answers
750 views

Find the next number in this sequence?

Well I have tried a few moves but don't get anywhere! The second number is the first by removing the bottom left stick. Also the fourth is the third by moving also the bottom left stick to the right. ...
13
votes
10answers
3k views

Another simple matchstick puzzle

Seems like there's been lots of matchstick puzzles lately, so here's my take on it Move one matchstick to make the equality right. EDIT: There are a lot of creative answers, some good, and some ...
8
votes
1answer
367 views

Matchstick puzzle with DOTS (points)

Here is a Matchstick equation using Matchsticks as well as Points (dots). Matchsticks and dots can be moved. By moving only 1 Dot and 1 Matchstick make the equation equal. No inequality or > or <...
29
votes
8answers
7k views

Four matchsticks puzzle

Take 4 matchsticks and set them out in this pattern: VII In mathematics this is 7 in Roman numerals. Now move just a single matchstick and the answer should be 1 (one).
4
votes
4answers
515 views

The Battle of Puzzlings

I present to you... The Battle of Puzzlings Your task is to turn 'one' into a letter representation of 1066 (the year of the Battle of Hastings): Rules Fewest moves wins. All matches must be used. ...
26
votes
18answers
16k views

Don't settle for a billion [duplicate]

While Artur is willing to settle for a billion, I'd like a much bigger return on my two matchstick investment. Moving only two matchsticks, what is the largest number that can be created from the ...
28
votes
4answers
5k views

Billion Matchsticks

A little twist on the "move the matchsticks" puzzle. I placed a bunch of matchsticks on my kitchen table and formed a number with them (6,111,100). I am asking, how can you move just two matchsticks, ...
5
votes
1answer
353 views

Seven Matches Digits

a) Remove some of the match sticks from the above 2 x 2 x 1 surface grid to reveal the figures below. Rotation, flipping, segment sharing are allowed. b) Place some match sticks on the above 1 x 1 x ...
7
votes
5answers
946 views

Matchstick puzzle next version

Here is a matchstick equation which is obviously wrong. 18019=1 Make the equation correct by moving "fewest" matchsticks (my solution involves 3 moves). You may use numbers, letters, Roman ...
13
votes
14answers
4k views

Yet another matchstick puzzle

Inspired by this post, here there is my attempt at a matches' puzzle. The expression 1 = 850 - 9 - 6 is obviously wrong: move exactly three matches to obtain a correct expression. Rules are: This ...
3
votes
5answers
482 views

Back to the Matchsticks Version 3

We start with 1=850-4-3 as the cotton swab equation, incorrect of course. By moving 3 swabs or less create a correct equation. It is a standard digital display. You may use numbers, roman numerals ...
9
votes
11answers
1k views

Back to Matchsticks (cotton swabs)

A Matchstick puzzle with a twist. Make the following equation right by moving 3 or less cotton swabs. CX = LIII + V It is in Roman Numerals. Final equation must be in Roman Numerals. ...
12
votes
11answers
2k views

Another Matchstick (cotton swab) puzzle

Here is another Matchstick puzzle. May be you have seen it. I have used Cotton Swabs in my picture below. I have used a digital display. ORIGINAL: 23 x 1 = 91 By moving THREE or less swabs make ...