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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1answer
57 views

Logic-grid “Brentwood Puzzle”: What are these people doing? [closed]

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 ...
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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 ...
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1answer
231 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 ...
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3answers
892 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 ...
2
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1answer
231 views

What is the answer to this puzzle?

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
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2answers
271 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)....
3
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1answer
119 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
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1answer
139 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
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1answer
102 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 ...
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3answers
563 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
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1answer
176 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:...
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2answers
267 views

Dog's mead AKA The Little Pigley Farm

This is not a puzzle, this is a question about a certain puzzle, Dog's mead. Several forms of this puzzle have been known, and I'm referring to this particular form. There are some history on that ...
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1answer
108 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
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0answers
90 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
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1answer
236 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-...
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1answer
166 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 ...
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1answer
194 views

Puzzle of the day - three in one Sudoku?

A three in one sudoku. Have fun
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2answers
321 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
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1answer
294 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 ...
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1answer
119 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 ...
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2answers
137 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 ...
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1answer
136 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, ...
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1answer
104 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
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1answer
230 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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2answers
125 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 ...
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1answer
121 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 ...
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1answer
139 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 ...
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2answers
750 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
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1answer
136 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: ...
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2answers
155 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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1answer
92 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: ...
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2answers
145 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
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1answer
70 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
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1answer
155 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, ...
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1answer
225 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 ...
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0answers
73 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 ...
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3answers
159 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 ...
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1answer
333 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 ...
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2answers
483 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 ...
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1answer
187 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 ...
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1answer
206 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 ...
3
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1answer
421 views

Logic Grid Puzzle (Above the Summits, new tips)

UPDATE 20-01-13: I sent an email to the admin of the site, pointing out the problem. The tip 1 has now been corrected and the puzzle can be solved. The "Laundry Time" puzzle I mentioned in this post ...
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3answers
208 views

4x4 grid challenge

You probably know the classic 3x3 grid challenge, where it’s about drawing one single line that touches all dots in the grid, with only 4 segments (3 turns) on the line. Here’s a little drawing to ...
7
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1answer
810 views

Queens full of jacks

(Note: I doubt that this puzzle is complex enough to post it here, but I still took a try.) There are 3 queens and 2 jacks (a full-house combination from poker) taken from a deck with standard suits, ...
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0answers
185 views

All Aboard the Factorio Train to Far Harad

It’s been a while since you started up your Factorio game and you are trying to remember what you had done with your four trains. Use the clues below to work out which deposit each train is collecting ...
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2answers
315 views

Logic Grid Interpretation of Clues (“Above the Summits”)

I have been stuck on this logic grid for a few hours. I don't know how to interpret Clue 4, 5, or 7. What does "next to" refer to in Clue 4? Can I then deduct that Everest is not in America from Clue ...
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1answer
187 views

A riddle from Candy Cadet [closed]

I am Candy Cadet, come get your candy here. I have candy all day, everyday. Candy. Candy. Candy. Now I will tell you a story about a young woman who was sealed in a small room. In the room was a ...
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2answers
497 views

The Grand Grid II

Have a look at the first Grand Grid to get an idea of the basic concept Each Grand Grid involves you discovering clues that allow you to solve a logic grid puzzle. The second in this series will be ...
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1answer
404 views

The Grand Grid I

This is the first in a series I am calling The Grand Grid. Each involves a logic grid puzzle that is solved by gathering clues presented in variously obscured forms. The description of the grid puzzle ...
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1answer
225 views

Every Answer To All Puzzles Here - Secret Found

BREAKING NEWS: The magic stone which reveals all answers on this site has been located! The only known photograph of the stone: The Stack Exchange Adventure Club has received word that the "All ...