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60 views

Prefixes of French words in the Princeton linguistics challenge

Source I am unable to come up with a complete solution. No outside knowledge is said to be required for the solution to this puzzle. My observations: words which are not without a prefix only have ré ...
2
votes
0answers
93 views

How old is Grandfather?

This position has been used in hundreds of chess problems for various reasons by a plethora of problemists over many, many decades. It is known as "Vielväterstellung" in German, or "The ...
4
votes
1answer
91 views

The end of a wild ride

This is part 13 of the puzzle series that started at Living the traveller's dream. Each part is solvable on its own. Dear Puzzling, My long trip is finally over. This is my last destination before ...
16
votes
5answers
996 views

Two out of a dozen cartons have Easter eggs. Two people try to find one Easter egg carton, each using a different strategy. Who is expected to win?

I have found a counter intuitive puzzle. I have read the answer given at the source and understand it completely. But, what I am unable to understand is why my intuition turned out to be wrong. ...
8
votes
1answer
139 views

Replaced by animals, but also in webpages

I'm really very old, Nowadays rarely used, Replaced by animals Of a feminine variety. Give me more space, And I'm in Asturian, Or in some webpages Of an HTML variety. What am I?
5
votes
0answers
134 views

The Cryptic Tower

You stand before a cryptic tower. On a locked door of crumbling stone is a strange cipher. The text is partially obscured by mold-covered cracks: HOLLDW SILENCE BOUNLER WASFUS There are several ...
5
votes
1answer
91 views

Wormeus and the Multiple Stickotaurs (Part 2)

This is the sixth puzzle in the Wormeus series and the second puzzle involving multiple Stickotaurs and wormhole puns. Wormhole-pairs are indicated with light green lines (note that this was ...
-5
votes
0answers
57 views

Hidden message in photo [closed]

png with hidden message inside, but i cannot decrypt (understand) the message, do you have any suggestions? The code: h5BA68F35I_%3E%3B%3BG3gdc%3E%3EFF9g5deA82hhh%3F%3Ea%3B22gdh%3Ee%3B%3B%6025%...
-2
votes
0answers
54 views

A problem from order and ranking [closed]

Rita is sitting 5th from the left end of row and Sita is 11 th to the right of Rita and Tina is 4 th to left of Sita. Madhuri is 8th to right of Tina. What is the total number of students in the row ...
20
votes
2answers
1k views

Encrypted Snake (Grid Puzzle)

Rules of Snake: Shade some cells to form a non-intersecting path which does not touch itself, not even diagonally. Black circles must lie on one end of the path. White circles must lie somewhere ...
2
votes
1answer
223 views

The marvelous puzzling space prize

Prologue Three friends wanting to earn the marvelous puzzling space prize offered by a supercomputer, joined a competition. Here are the competition's rules they read out in the competition ...
13
votes
1answer
297 views

Sum-until-1 Fillomino: Odds, Fibonacci, and Pi

Fillomino rules (taken from Nikoli): Fill in all empty cells with numbers under the following rules. Divide all of the board into blocks. Fill each block with the same number horizontally or ...
3
votes
0answers
195 views

A splash of Minecraft?

I was playing Minecraft the other day and came across a beautiful splash message. Subsequently, I was inspired to create a puzzle for it. Svir, look out below! Shorty's slang stays surprisingly stout....
1
vote
1answer
149 views

Blood relations - who is married to whom and reads which magazines?

In a family of eight persons - P, Q, R, S, T, U, V and W - there are four males and four females. There are three married couples and two persons are unmarried. Each of them reads a different magazine,...
2
votes
0answers
95 views

General Approach to Solving Cryptarithms

I have recently started honing my problem-solving skills, starting with number-related puzzles. Cryptarithms have appeared frequently, so I was wondering whether there is some sort of general approach ...
6
votes
3answers
1k views

One-sided chess: Self stalemate revisted

An old self-stalemate puzzle has been popping up in my feed lately. I was unable to do better than the existing answers, so I created a different puzzle from it. For reference: One-sided chess: Can ...
12
votes
1answer
216 views

Sub Battle Sudoku

Please find below a variant Sudoku which incorporates elements of Star Battle. The Sudoku is a standard irregular Sudoku, and the clues outside the grid are sandwich clues: the sum of digits strictly ...
0
votes
0answers
140 views

Which four numbers are the answer? “We are four brothers/Two of us are twins.” [closed]

The answer is four numbers. We are four brothers. Two of us are twins. Our first brother born in February and the older in September.
-8
votes
0answers
107 views

3 blue moons in one year, impossible? When's the next blue moon? (sooner than you think) [closed]

Three Blue Moons in One year, impossible? A few years ago, on Nov 15 '17 at 6:00 Jamal Senjaya asked "Is it true that doomsday will occur in the year with a triple 3 blue moon?" Many of the ...
3
votes
1answer
399 views

100 blue-eyed people riddle N=4

The solution of this riddle is usually given with explicit reasoning for two cases: Case where there is only 1 blue-eyed person, Case where there are 2 blue-eyed people. That logic is clear, and I ...
8
votes
1answer
413 views

Where's the path?

A person was shading several unit squares in a square grid, to create a path from the bottom left corner to the top right corner. The path stepped from each square to the next either horizontally or ...
5
votes
1answer
207 views

Are there truly unwinnable Calculation decks?

Calculation is a solitaire variant known for its large skill ceiling; supposedly, the large majority of games can be won by skilled human players, whereas the games to be won by uninformed play are in ...
-2
votes
0answers
206 views

Missing number in this number relation puzzle with five numbers in an X shape

A user on Reddit, namely u/SeaworthinessOld8687, posed the following puzzle and I found it interesting. We have to find the “?” in the given set of number relations. “?” is a single-digit positive ...
4
votes
0answers
220 views

What's the relation between these clues?

Find the relation between these words a.k.a. clues in the sentences below: Zombies prefer to stay beside elevators. Evil country produces thousands of money. I was eating fast food in that vehicle. ...
13
votes
1answer
246 views

Mid-loop: Coming Soon

Rules of Mid-loop: Draw a single loop passing through all of the black dots. The loop may not branch off, intersect, or move diagonally. The loop cannot bend at the black dot. Each black dots denotes ...
10
votes
2answers
411 views

Transform a pile of cards in reverse order

There are 52 cards on a table and numbered in order from 1 to 52 with number 1 on top. The following operation can be repeatedly done: split the pile into two piles without shuffling and take cards ...
12
votes
6answers
862 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 ...
10
votes
1answer
359 views

Rich and unique

This is part 12 of the puzzle series that started at Living the traveller's dream. Each part is solvable on its own. Dear Puzzling, Unfortunately I’m nearing the end of my trip. Next week’s ...
11
votes
2answers
571 views

When was Ensquare born?

Professor Matlogic posed this question to his smartest math student: "Famous mathematician Ensquare was born on this day, this month and this year AD at this time (hour and minutes) pm. True to ...
15
votes
1answer
1k views

A Harry Potter sequence puzzle

What is the next term in the following sequence based on Harry Potter? None, 16, None, 16, 5, 9, ?
11
votes
2answers
563 views

Two dimensional Mastermind

You have probably played the classic game of Mastermind with 4 pegs and 6 colours. It turns out that the codebreaker can always find the pattern in 5 moves or fewer. Now consider the 2D version of the ...
2
votes
1answer
126 views

Words with dual and opposing meanings

What is the word in each case? I can attach or cut. I can be virtual or real. I can approve or penalize. I can separate or entangle.
1
vote
1answer
166 views

A familiar sequence?

D 11876 h 18422 R 5373 G 19114 S ? What number is represented by the question mark?
1
vote
1answer
98 views

Puzzle storm to infinity

I have been playing Puzzle Storm on Lichess lately. Essentially it involves solving chess puzzles within a given time limit. Additionally, the player gets a time bonus for a certain number of moves. ...
9
votes
1answer
751 views

Let's build a tree together!

It's been a while since I've posted due to being incredibly busy at work, so I've got a short and sweet Riley for anyone interested. Look for the infix, odious indeed, Obscenities and evil, a hex, ...
12
votes
1answer
878 views

A Sporting Scandal?

It was the final of the world-renowned cricket tournament - the Cinders (not to be mistaken for the Ashes). The Owls were comfortably the favourites. They were unbeaten in the last 4 years, whereas ...
14
votes
1answer
364 views

Some say, obsessed

The final answer consist of 11 letters and i'm looking for a name! After you find the answer to the puzzle above, use this (to get the final answer): 107 71 Hint1 Hint2
1
vote
1answer
199 views

What is a Scary Number™?

This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles. If a number conforms to a special rule, I call it a Scary Number™. Use ...
9
votes
2answers
309 views

Trio Tapa: Introduction

Rules of Tapa (copied from here): Shade some cells of the grid. Shaded cells should form a single [orthogonally] connected group; no 2×2 square should be fully shaded. Some cells have clues in them. ...
1
vote
1answer
98 views

cryptic clue - palidromic medic with difficult personality loses title [7]

Cryptic crossword type clue Palindromic medic with difficult personality loses title [7] (hints will be provided over time if necessary... )
2
votes
2answers
277 views

Colorful Puzzle

This puzzle is based on the squares before the one that says, "what color is this?". This is a sequence of squares, try to follow the rule(s) for the puzzle. Can you solve it?
0
votes
0answers
147 views

Find the hidden message in the following equation

Find the hidden message in the following equation. The answer is not in verbal format. $$| -3xmy + xy_5 |^3 = 375g^3x^3$$
14
votes
3answers
298 views

Cross ALL the Streams

This grid deduction puzzle is a hybrid of three puzzle types: Cross the Streams, Tapa and Star Battle; rules for each are summarized below. In this grid, every cell is to be shaded either red, blue, ...
3
votes
2answers
233 views

Cursed Knights and Knaves

You are packing up after a week-long stay at the Verity Inn. You came here, to Truth Town, to visit your friend but now it's time to go home. You feel in good spirits as you pack your bags. As you are ...
4
votes
2answers
237 views

Colorful Pattern Puzzle with Arrows and Warning Signs

This is my first time on Puzzling Stack Exchange. I challenge you to solve this puzzle I made, impossible to everyone else except for me as far as I know. Can you solve it?
8
votes
2answers
894 views

Five positive integers in a row, each being the sum of the digit sum of its neighbours

Five positive integers should be put in a row such that each integer is the sum of the digit sum of its neighbours. The integers at the beginning and at the end have only one neighbour, i.e the first ...
6
votes
1answer
739 views

Three cups and a ball

I am walking down the streets of Paris when a street performer approaches me. He has a row of 3 cups facing down on a table. He places a ball under the left cup. He proceeds to swap pairs of cups, ...
4
votes
1answer
162 views

When will I see my friend?

My friend and I both sing in the choir of our local episcopal church, but our choir director is really strict. He doesn't like people talking much. At our last rehearsal, right at the end of a break, ...
7
votes
2answers
164 views

Op. 5 Cacophony in C

The whole gang's here... except for one. Who's missing? https://soundcloud.com/nordus-rex/op-5-cacophony-in-c
14
votes
1answer
703 views

👎💑😐Scrambled emoji tale❤️👩⭐ #3️⃣

Today is July, 17th - World Emoji Day 📅 🥳 So, today is time to post a new scrambled emoji tale. 😂😂😂😂 This is the emoji tale #3️⃣. Click here and here to see the previous two. Since my previous ...

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