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.

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4 votes
3 answers
198 views

Move two matches so that no triangle remains [closed]

This puzzle comes from Nobuyuki Yoshigahara. Move two matches so that no triangle remains. There are at least five different solutions. How many solutions can you find? You can’t burn the matches. ...
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0 votes
2 answers
268 views

Make 65-57=91 correct by moving one matchstick [closed]

65 - 57 = 91 Not sure how to make this correct by only moving one matchstick.
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-1 votes
7 answers
236 views

The smallest and the largest number [closed]

Shown below is number 10 formed with 5 sticks. 1 Move exactly 1 stick to get the smallest non-zero positive number. 2 Move exactly 1 stick to get the largest non zero positive number. Some creative ...
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  • 38.8k
6 votes
4 answers
803 views

Paris and Wife Matchstick

Here are two matches dates that I hold with love in my heart: The current sum is 1970 + 1997 = 3967. You must requisition at most 10 matches so that the sum is "as big as possible". We will ...
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  • 5,557
6 votes
3 answers
1k views

This is... to me! (Matches Puzzle)

Make these two "equivalent" equations true by simply moving (changing the position of) exactly three lines (per equation). The equations are two different representations of the same (what I ...
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  • 14.2k
3 votes
12 answers
2k views

This is taking too long! [closed]

Move two lines to make the equation true. As always, no inequality symbol (≠), adding, and subtracting lines. Move the lines only. Hint 1: Hint 2:
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4 votes
1 answer
165 views

Another Matchstick riddle(not puzzle)

Here are the rules in order to manipulate the matchsticks: You are required to move exactly 3 matchsticks. You may rotate any whole symbol(circled in blue)or number as many times as required. Most ...
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9 votes
1 answer
256 views

Matchstick Riddle

Disclaimer: This is a matchstick riddle, not puzzle. Oh, and everything is a clue. Only enter an answer if: it is original. Then, you can release the answer you think it is.
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-1 votes
1 answer
108 views

What are all the possible transitions between matchstick numbers?

If these are all the matchstick numbers: ...
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6 votes
13 answers
4k views

Yet another matchstick puzzle: 14 = 5 [closed]

Is the expression below correct? No. But I never take no for an answer. Your task is to make the expression true by moving exactly two matchsticks. As usual, inequalities are not allowed. So is ...
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  • 19.9k
3 votes
6 answers
708 views

Play with matchsticks

By moving only 1 matchstick make the equation correct (not equal and > and < are not allowed).
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21 votes
3 answers
1k views

Complex Matchstick puzzle

This is my toughest invention so far, not sure if it's already been done but here it goes. Move a single stick to obtain a correct equality. (To be clear: the stick needs to be moved and placed down ...
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13 votes
10 answers
3k views

A simple Matchstick puzzle [closed]

Here is a simple matchstick puzzle. Some creative thinking may be needed. Make the equation below correct by moving only one matchstick. The use of > or < or not equal to is not allowed. You can'...
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  • 38.8k
12 votes
2 answers
703 views

You don't want to sell me matchsticks

Fix the image before completing the sequence. What do I want you to draw your attention to? 103, 91, 79, 0, x, x, 28, x, x, x, 0, 78, x, x, x, x, x, x, 5 Hints:
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  • 7,561
18 votes
3 answers
2k views

A cinematic masterpiece in matchsticks

Polanski's magnificent Chinatown (my all-time fourth favourite film) was produced among numerous other movies by Robert Evans, the second anniversary of whose death is today1. What better excuse for a ...
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  • 5,263
11 votes
6 answers
1k views

Matchstick Puzzle 4971 [closed]

Rewriting the puzzle in text: Move exactly 2 matchsticks to make this equality true: 4 + 9 - 7 = 1 Important Points: By the word 'move', I would also like to allow the possibility of 'remove', to ...
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9 votes
5 answers
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 ...
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  • 860
12 votes
4 answers
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 ...
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3 votes
2 answers
540 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 ...
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0 votes
6 answers
359 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 ...
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4 votes
6 answers
2k 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 ...
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  • 859
5 votes
5 answers
966 views

Matchsticks: Fix the Equation

Here's a simple puzzle I just created: Move just one matchstick to fix the next equation:
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  • 2,223
5 votes
11 answers
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.
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4 votes
2 answers
189 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 ...
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  • 3,144
9 votes
7 answers
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?
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5 votes
2 answers
958 views

Move just one match

Make a correct equation by just moving one matchstick! This is the source. Spoiler--source reveals answer.
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4 votes
3 answers
324 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 ...
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7 votes
11 answers
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.
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3 votes
3 answers
606 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 ...
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  • 61
6 votes
7 answers
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
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  • 1,149
7 votes
1 answer
304 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 ...
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  • 17.7k
39 votes
7 answers
7k views

9-5=5? Matchstick problem

Move one matchstick to make an equality. Question made by me (Is this too easy?)
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  • 5,520
9 votes
5 answers
511 views

Move just 2 matchsticks to make three equally sized triangles

There are 9 equally sized matchsticks, move 2 to make 3 equal triangles
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5 votes
10 answers
527 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 ...
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  • 5,557
5 votes
5 answers
258 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 ...
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28 votes
7 answers
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
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  • 489
18 votes
1 answer
751 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.
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  • 535
8 votes
7 answers
5k 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
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-1 votes
1 answer
250 views

Matchstick Puzzle [closed]

Move two matchsticks to make 2 E's. (The Matchsticks cannot be stacked onto each other).
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  • 1
0 votes
15 answers
15k 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. ...
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1 vote
5 answers
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
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8 votes
7 answers
3k 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, ...
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  • 183
11 votes
1 answer
483 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 ...
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10 votes
13 answers
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 ...
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  • 38.8k
0 votes
1 answer
187 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 ...
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  • 729
14 votes
8 answers
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 ...
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5 votes
2 answers
329 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? ...
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  • 2,726
30 votes
26 answers
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.
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  • 381
10 votes
6 answers
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 ...
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  • 227
2 votes
1 answer
234 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 ...
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