Questions tagged [logic-grid]
Logic grid puzzles, first produced by Lewis Carroll, are puzzles in which correspondences must be drawn between multiple ways of describing the same list of objects, using a given set of clues about these correspondences. Such puzzles can be solved using a grid, but for pre-existing grids whose elements must be filled using logic, use the [grid-deduction] tag instead.
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Help with a program to solve Einstein's Riddle [closed]
I have been trying to write a program (just for fun) to solve Einstein’s Riddle, see https://play.google.com/store/apps/details?id=com.rottzgames.logic.
My solution basically does this:
It creates an ...
6
votes
1answer
155 views
Logic grid puzzle - Carson City Chronicle
I can't figure this one out. Any help would be appreciated.
Journalist-in-training Janet Seymour's byline appeared in the Carson City Chronicle on six days last week. On each day (Monday through ...
0
votes
1answer
106 views
Books on a bookshelf
On a shelf the blue book is to the right of the red book, the yellow book is in
one end, the black book is just before the white and the green is
between blue and white. What is the order of the green ...
5
votes
2answers
499 views
Nine neighbors in a hotel
Alessandra, Marta, Cristiane, Camila, Eduardo, Janice, Giulia, Mateus and Lucas are neighbors who live in a hotel.
On each floor there are three bedrooms: one on the left, one in the center and one ...
5
votes
3answers
178 views
Who took Gwen's purse and jacket?
The puzzle is as follows:
Four sisters went to the movie theater. While leaving the venue each
one of them took by mistake the purse of another sister and the coat
of another different sister. Maria ...
4
votes
1answer
182 views
Einstein's Puzzle with 5 furniture customers
Einstein had made quite a good zebra puzzle tough enough to confuse many people's brains. Today I present even tougher one, will you be able to solve it?
There are 5 customers, who bought a different ...
11
votes
1answer
353 views
Cheesemonger's puzzle
An entry in Fortnightly Topic Challenge #45: Flags
The cheesemonger wants to arrange the wheels of cheese on display. The display case has two shelves with space for three wheels of cheese on each. He ...
6
votes
1answer
257 views
An Artistic Bunch
Luke, Clive, Anton and Paul are four talented creative artists, one a dancer, one a painter, one a singer, and one a writer. (Though not necessarily respectively.)
Luke and Anton were in the audience ...
1
vote
1answer
119 views
Who dances what musical genre and with whom?
The puzzle is as follows:
4 couples attended a magazine opening celebration party. These couples
danced among themselves, all at the same time, to a disco suite, a pop
ballad, a jazz tune and a waltz....
1
vote
2answers
142 views
Teachers around a circular table - who teaches geometry?
The puzzle is as follows:
In a teacher's lounge there is a circular table where
the teachers eat their meals during lunch time. The teachers' names are Albert,
Benny, Charles, David, Henry and Felix, ...
3
votes
2answers
210 views
Asymmetric Logic-grid “Brentwood Puzzle”: What are these people doing?
Three men, including Gianni and three woman, including Sachi are in line at the BrentWood post office. Each has two different pieces of business to conduct.
The first person is a woman.
Carlos wants ...
16
votes
7answers
4k views
Logical puzzle from a math homework for Russian fifth-year school students
The daughter of a relative of mine, a fifth-year school student in Russia, got the following math homework from her teacher:
Here's my translation:
Logical task
No. 26. Students were solving a task ...
3
votes
1answer
242 views
Whose story doesn't add up? (v3)
"It's been weeks. This is taking too long. We finally rounded up the
four suspects - the four people seen ducking into nearby shops right
around the time of death - got their statements and still ...
7
votes
3answers
906 views
Whose story doesn't add up? [closed]
"It's been weeks. This is taking too long. We finally rounded up the
four suspects, the four people seen ducking into nearby shops right
around the time of death, got their statements and still ...
4
votes
1answer
283 views
Logic grid puzzle with five FBI officers
My friend sent me this puzzle over Discord asking if I could figure it out. I tried for over an hour and I got pretty far but I've hit a bump. The puzzle goes as follows,
There are five colored doors ...
8
votes
2answers
277 views
Least number of marked symbols
I have a 7x7 grid, where I want to find the least amount of "marked positions" so a group of non-marked positions aren't bigger then 4 (only moving up, down, left and right and not diagonal)....
4
votes
2answers
163 views
Logic: Match the Potion to the Drinker
You are known as a great alchemist and potion master, and have spent the past decade developing a series of extremely powerful potions. You have made some great progress, but the potions are not ready ...
3
votes
1answer
151 views
The problem with the five farms
In the spirit of the so-called Einstein Riddle, I think everyone should try to create their own version. So here is mine:
Five farms are next to each other along a country road (like in the next ...
2
votes
1answer
108 views
What is Scenario One and Scenario Two?
(1) In Scenario One the L***** are S****
(2) In Scenario Two the L***** are not I******
(3) No C****** has the same type of people in Scenarios One and Two
(4) The C**** in Scenario One and P***** in ...
3
votes
3answers
570 views
Which city is the bus from?
There are four buses; their origins are the cities of A, B, C, and D. their destinations are the cities of E, F, G, and H.
They park in a gasoline station in a line to get fuel. after a while, they ...
4
votes
1answer
182 views
Who has received a letter about energy?
Four administrators (A, B, C, and D) from a company have written letters about four topics: Energy, Security, Nutrition, and Manpower. Each letter has a unique topic, sender, and receiver.
Information:...
3
votes
1answer
114 views
It's all in the 2's follow-up question
This is in regards to the solution in Slitherlink - It's all in the 2s
I know it may seem dumb, but I don't understand the logic behind the second 2 chain in the solution. To help provide clarity ...
6
votes
0answers
102 views
How can I create written logic puzzles with multiple variables and the fewest number of clues?
When I refer to written logic puzzles, I mean those in which, for example, 5 men wearing 5 different colors of aprons are bringing 5 different pies from 5 different cities to 5 different booths in the ...
6
votes
1answer
242 views
Logic puzzle about six college freshmen
I found some logic puzzles on someone's blog from a few years ago, and have been trying to solve them. Here's the link to the page: https://hedgehogcomms.blogspot.com/2015/04/puzzling-over-logic-...
2
votes
1answer
188 views
Logic grid puzzle
I found some logic puzzles on someone's blog from a few years ago, and have been trying to solve them. Here's the link to the page.
Please let me know if you have any suggestions! I have looked at ...
9
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1answer
199 views
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2answers
330 views
The Genius Bank Robber
StackVille Bank & Trust - Robbed!
The Robbery
The bank is being robbed. There are millions in cash in the vault. The lone robber takes the manager to the safe and demands he opens it.
The manager ...
9
votes
1answer
301 views
Pizza and Subs - Delivery Dilemma
The Delivery Dilemma
The local pizza joint delivered pizza and subs. Three employees were hired to deliver: John, Heather, and Luigi.
Based on the following statements:
If John delivered pizza, then ...
-1
votes
1answer
121 views
The Team Roster Mystery
Game Day
When the managers of the Tampa Times and St. Pete Sun met for their annual company baseball game, everyone decided by unanimous vote that they wanted a different method of choosing which team ...
1
vote
2answers
143 views
What's the gorilla's address?
There's four houses next to each other, somewhere in suburb Netopia.
Johnny lives in number 3.
The red house is in between the white and yellow houses.
Mickey does not live at the end.
House number 9 ...
0
votes
1answer
139 views
The Coding Contest
A coding competition in Netopia pitted each PHP Programmer contestant against every VB Programmer and C++ Programmer contestant, each VB Programmer contestant against every PHP and C++ contestant, ...
2
votes
1answer
107 views
The Magic LeaderBoard
Every Saturday at Netopia's Square, a peninsula at the tip of southwest Netopia, there is a leaderboard kept of Netopia's Square's six local resident wizards.
(in no particular order)
They are ranked ...
4
votes
1answer
235 views
Old Ladies Day Out
During this unfortunate Corona situation in Stackville the WalMart is closed every Monday, BestBUY is closed every Tuesday, the Liquor Store is closed every Thursday, and the bank is open only on ...
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vote
2answers
128 views
Diamond Division - Splitting up this found treasure
The Discovery
One day while on an adventure, a great treasure was found in the Tenretni Cave by an Adventure Group known as Tenehtfrus. The treasure chest had beautiful diamonds in it. It was a ...
4
votes
1answer
122 views
You Talkin' To Me?
Five long time friends whose given names were Johnny, Vinny, Frankie, Mickey, and Bobby, and whose last names in one order or another were Morino, Bucci, Orsini, Palmacci, and Galino, although living ...
2
votes
1answer
142 views
Pizza Positioning Puzzle
Seating Arrangements
Me ( I'm Johnny) and my brothers Vinny, Mickey, Smitty, Gino, and Pauly always take the same seat when we have our weekly pizza party at our favorite Pizza place - and we always ...
13
votes
2answers
768 views
Murder Mystery - Murder at The StackO Ave Tavern
Murder at The StackO Ave Tavern
Each Saturday Night the local bar, "The StackO Ave Tavern", hosted a Poker Party. And each week, me and three of my buddies attended the event. Until this ...
2
votes
1answer
138 views
Setka Puzzle - Complete grid using clues and sudoku-style logic; Tom Hanks
Theme: Tom Hanks
This is a Setka puzzle; you can find more (along with a more detailed explanation of the rules) at our website, linked from our profile.
How to play Setka, the short version:
...
3
votes
2answers
161 views
Great POTW Bake-Off
Pepper, Belle, Emerson, and Ralphie have just competed in POTW’s Annual Bake-Off. Pepper, Belle, Emerson, and Ralphie each came in first, second, third, or fourth in the competition. There were no ...
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vote
1answer
94 views
How can I find which sport/hobby corresponds to which friend when a set of given clues is provided?
Marina, Mike, Roger, Phillip and Justin has each only one hobby from
the following list: motocross, badminton, swimming, athletics and
karate, but not necessarily in that order. It is known that:
...
3
votes
2answers
147 views
How can I find which person belongs to a specific occupation when the clues involve degree of friendship or acquaintance?
The riddle is as follows:
Brenda, Lara, Mie and Nancy have each one profession. These
professions are, baker, graphics designer, photographer and
cosmetologist.
But not necessarily in that ...
3
votes
1answer
71 views
Setka - Complete grid using clues and sudoku-style logic; Theme - Fear Itself
This is a Setka puzzle; you can find more (along with a more detailed explanation of the rules) at our website, linked from our profile.
Theme: Fear Itself
How to play Setka, the short version:
...
6
votes
1answer
156 views
Puzzle - Snow Day Event
Daisy, Delilah, Donny, and Duke have each decided to participate in the snowperson building event.
In decorating their snowperson, each of them has chosen a different colour of the scarf from purple,
...
7
votes
1answer
340 views
Montague Island Mysteries Logic-Grid Puzzles
I'm working through the logic-grid puzzles in the book called "Montague Island Mysteries" by R. Wayne Schmittberger. The particular puzzle I'm on is Puzzle 5.3 where breakfast guests choose food ...
0
votes
0answers
74 views
Stuck - Favorite TV Show Logic grid (repost) [duplicate]
I was asked to repost and offer the source. I found this on:https://slideplayer.com/slide/8573924/
Four friends (Al, Gary, Mike, & Roger) each have a favorite TV show. Oddly enough, while the ...
0
votes
3answers
162 views
Stuck - Favorite TV Show Logic grid
Four friends (Al, Gary, Mike, & Roger) each have a favorite TV show. Oddly enough, while the four are close friends, their interest in TV shows is so different that none of the friends has the ...
14
votes
1answer
349 views
Lenny’s Logical Internship
Lenny recently applied for an internship at Logicorp™, a company built around using logical reasoning to solve any sort of problems their clients face. The interview was long and difficult, and Lenny ...
11
votes
2answers
485 views
Setka - Complete grid using clues and sudoku-style logic; Theme - Halftime
This is a Setka puzzle; you can find more (along with a more detailed explanation of the rules) at our website, linked from our profile.
How to play Setka, the short version:
Answer each clue using ...
-6
votes
1answer
247 views
What is the answer? [closed]
Question 2
If two words are next to each other, they must share at least one letter and not be the same
length. There are six words below and the word on the far left is "CAT." Place all the words
in ...
0
votes
1answer
210 views
Circular arrangement with professions and age based puzzle [closed]
Eight people, named A, B, C, D, E, F, G, and H; who work as a dancer, singer, lawyer, painter, doctor, teacher, architect, and professor; are 25, 40, 45, 29, 66, 24, 21, and 34 years old; although ...
