Hottest Questions This Month - Puzzling Stack Exchange

20 votes

7 answers

2k views

Dissect the figure into two congruent parts.

FirstName LastName

2,192

modified Apr 26 at 13:49

24 votes

4 answers

2k views

Dividing a hexagon into 9 equal regions

Scott Miller

867

answered Apr 22 at 14:54

17 votes

8 answers

1k views

Both, One, Neither

bobble

10.9k

modified 2 days ago

28 votes

2 answers

2k views

Smallest possible pentomino farm

RobPratt

16.8k

modified Apr 29 at 8:15

15 votes

5 answers

906 views

Stein Coins for Local Terra - Place 8 Double-Sided Mirrors!

The Guy with The Hat

315

modified Apr 11 at 21:13

15 votes

2 answers

2k views

Can you construct a 3x3x3 cube using 9 red, 9 green and 9 blue unit cubes such that there is no “line” of 3 unit cubes that are all the same color?

ApexPolenta

4,347

modified Apr 16 at 22:54

19 votes

3 answers

1k views

Can you get all the coins no matter where they are placed?

Hemant Agarwal

6,857

modified May 1 at 0:21

29 votes

2 answers

1k views

A puzzling site... But what am I looking for?

Lezzup

12.7k

modified May 5 at 20:13

6 votes

3 answers

1k views

Magic fifteen. Who wins the race to 15?

Vilx-

1,723

modified Apr 19 at 19:23

12 votes

2 answers

1k views

Dissect the almost 10x10 square into 4 congruent pieces.

Florian F

32.7k

modified May 4 at 16:29

12 votes

5 answers

971 views

Fill the circles so that the sum of the three numbers along each of the ten lines is the same.

AxiomaticSystem

15.1k

modified Apr 29 at 12:28

17 votes

3 answers

901 views

Can you find sets of 4 (or 5) positive integers such that their pairwise sums give consecutive numbers?

Idran

146

answered Apr 21 at 21:06

28 votes

1 answer

1k views

The CXV sequence

Oscar Lanzi

1,950

modified Apr 24 at 19:34

10 votes

2 answers

823 views

Can you dissect a 5x9 rectangle into nine (or ten) rectangles and/or squares?

Oscar Lanzi

1,950

modified May 4 at 2:01

19 votes

1 answer

1k views

Riddle in Cheshire Crossing comic

bobble

10.9k

modified Apr 26 at 14:25

5 votes

4 answers

789 views

Place numbers into the 6 circles to satisfy the summation constraints.

AxiomaticSystem

15.1k

answered Apr 15 at 21:00

21 votes

2 answers

1k views

Tetris Perfect Clear puzzles

noedne

21.7k

modified Apr 30 at 12:41

25 votes

1 answer

721 views

A pair of Find-the-stars puzzles

Will.Octagon.Gibson

27.6k

modified 11 hours ago

5 votes

2 answers

1k views

Add 1 line to make a valid equation - 18x18=18

InBedded16

197

modified Apr 22 at 17:28

6 votes

4 answers

1k views

3D Packing Puzzle: Can 17 Mixed-Size Blocks Fill a Cube?

quarague

2,462

answered Apr 24 at 12:17

16 votes

1 answer

2k views

There are no employees at the store. Why not?

SteveV

16.3k

modified Apr 28 at 0:40

20 votes

1 answer

1k views

I'm looking for...ah, found it!

Naomi

1

modified Apr 28 at 7:30

2 votes

5 answers

401 views

Can you get 100 using only 9,1,6,6 each once? [closed]

RDK

2,712

modified Apr 19 at 11:10

10 votes

3 answers

907 views

Plenty colors Rubik's Cube

Steve

4,464

answered Apr 16 at 12:59

16 votes

1 answer

862 views

Popular orders in a popular chain

Tom

74k

answered Apr 14 at 15:43

13 votes

1 answer

984 views

All black pieces are gone

bobble

10.9k

modified Apr 14 at 13:40

4 votes

6 answers

842 views

The Madhouse problem

Especially Lime

3,463

answered Apr 16 at 8:35

14 votes

1 answer

790 views

A clockwise arrangement

noedne

21.7k

modified Apr 25 at 19:31

11 votes

2 answers

773 views

Filling a 6x6 square with tetronimoes

noedne

21.7k

answered 2 days ago

9 votes

2 answers

969 views

All black pieces are gone II

Bass

81.9k

modified Apr 16 at 0:51

9 votes

3 answers

565 views

What happened to these triangles?

bobble

10.9k

modified Apr 17 at 16:10

11 votes

1 answer

739 views

Make 101520 with 6 6's

bobble

10.9k

modified Apr 13 at 13:58

13 votes

1 answer

558 views

Can you find the next connected figure?

PDT

26.7k

answered Apr 23 at 16:49

0 votes

3 answers

519 views

Maze Run Puzzle

Lezzup

12.7k

answered 2 days ago

13 votes

2 answers

361 views

The Flow of Time

bzc

310

modified May 2 at 18:54

6 votes

2 answers

567 views

Odd neighbors. Can you place coins on a 6x6 chessboard so that every square has an odd number of adjacent squares that contain a coin?

Livio

1,364

modified Apr 18 at 12:45

8 votes

1 answer

686 views

Shortest closed path for pilgrims on planet Cube

Livio

1,364

modified 2 days ago

11 votes

2 answers

596 views

Make him shuffle most!

RobPratt

16.8k

modified yesterday

14 votes

1 answer

575 views

"Incomplete rectangles"

Pranay

7,826

modified May 1 at 14:36

5 votes

4 answers

603 views

πthagoras cycloid angle

FirstName LastName

2,192

modified Apr 20 at 21:50

9 votes

2 answers

293 views

Replace the variables with something.

Lucenaposition

3,486

answered Apr 23 at 22:54

8 votes

1 answer

578 views

A puzzle of tradition

M Oehm

68.3k

answered Apr 16 at 10:08

8 votes

1 answer

703 views

Awake and asleep

PDT

26.7k

answered Apr 29 at 11:45

11 votes

1 answer

400 views

Jack-o-lantern cryptic crossword

oAlt

7,253

modified Apr 17 at 10:38

6 votes

2 answers

569 views

Sudoku with additional rule for the top row: alternating odd and even numbers

Parcly Taxel

10.3k

answered Apr 13 at 19:36

11 votes

1 answer

929 views

longest path in 10x10 grid

bobble

10.9k

modified May 6 at 13:43

5 votes

1 answer

689 views

Fastest checkmate by castling

Lucenaposition

3,486

answered May 4 at 1:40

4 votes

2 answers

305 views

Rooms and glases [closed]

Samanta Rojas Siles

1

modified Apr 18 at 20:00

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