User Will.Octagon.Gibson - Puzzling Stack Exchange

13 votes

1 answer

1k views

What is this: G D F?

asked Jul 9, 2023 at 21:54

13 votes

4 answers

2k views

Can you color the 8x8 grid red and blue?

asked May 31, 2024 at 3:26

13 votes

5 answers

2k views

Make a square with the fewest number of pieces

asked Oct 30, 2024 at 21:21

13 votes

6 answers

2k views

Place numbers so that the sum of the numbers inside each “Olympic” ring is the same

asked Mar 3 at 21:20

13 votes

3 answers

2k views

Place 1 through 7 into the circle to make equal sums

asked Apr 7 at 9:17

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.

asked Apr 24 at 3:43

12 votes

2 answers

793 views

Cards are shuffled twice. What was the order of the cards after the first shuffle?

asked Feb 26 at 5:33

12 votes

3 answers

1k views

Can you pack these pentacubes to form a rectangular block with at least one odd side length other the side whose length must be a multiple of 5

asked Jun 30, 2023 at 4:47

12 votes

3 answers

1k views

Tiling a 5-by-5 bathroom with L-shaped triomino tiles

asked Mar 1, 2024 at 21:03

12 votes

1 answer

565 views

Attacking chessboard squares with 6 pieces

asked Mar 7, 2024 at 6:58

12 votes

1 answer

1k views

Anna tries to make triangles from broken sticks

asked Mar 7, 2024 at 23:32

12 votes

1 answer

2k views

Poison ivy chess: Can the king get to safety?

asked Sep 2, 2023 at 22:46

11 votes

3 answers

2k views

Determine whether the counterfeit coin is heavier or lighter in two weighings on a standard balance

asked Mar 3, 2024 at 4:14

11 votes

3 answers

2k views

How far on average does the grasshopper need to travel to get home after its drunken jumping spree?

asked Jul 9, 2023 at 20:04

11 votes

2 answers

2k views

How many Friends are there in the circle?

asked May 16, 2024 at 5:02

11 votes

1 answer

929 views

It was the second, but we were told it was the fifth

asked Jul 5, 2024 at 7:32

11 votes

8 answers

4k views

Can you arrange 25 whole numbers (not necessarily all different) so that the sum of any three successive terms is even but the sum of all 25 is odd?

asked Jun 30, 2024 at 6:14

11 votes

2 answers

2k views

How can the knight traverse a chessboard to make a path that sums to 100

asked Apr 20, 2024 at 3:19

11 votes

4 answers

3k views

What is the least number of colours Peter could use to color the 3x3 square?

asked Sep 9, 2024 at 2:01

11 votes

3 answers

1k views

Are these colored sets closed under multiplication?

asked Sep 15, 2024 at 8:58

11 votes

5 answers

877 views

Maximizing the common value of both sides of an equation (part 2)

asked Sep 3, 2024 at 7:11

11 votes

2 answers

1k views

When can the cat and mouse meet?

asked Sep 5, 2024 at 6:18

11 votes

2 answers

737 views

Use all eight of the given polygons to tile a parallelogram

asked Aug 19, 2024 at 8:18

11 votes

2 answers

2k views

How quickly can Zeus get to his destination?

asked Nov 14, 2024 at 6:23

11 votes

1 answer

880 views

Can you make all the squares the same color?

asked Oct 18, 2024 at 3:36

11 votes

6 answers

2k views

How to cut wooden beam into 4 parts that can be reassembled into a cube?

asked Oct 21, 2024 at 7:58

11 votes

4 answers

3k views

Is it true that if he plays long enough there will be a series of consecutive days during which he will play exactly 23 games?

asked Oct 29, 2024 at 21:39

10 votes

1 answer

1k views

Who wins in this knight-placement game?

asked Oct 8, 2024 at 5:35

10 votes

3 answers

1k views

Using doubling and last digit deletion, transform 458 into 14. Also transform arbitrary M to arbitrary N

asked Oct 10, 2024 at 5:24

10 votes

2 answers

2k views

Mate in 2 by Vladimir Nabokov

asked Oct 3, 2024 at 7:20

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243 Questions

What is this: G D F?

Can you color the 8x8 grid red and blue?

Make a square with the fewest number of pieces

Place numbers so that the sum of the numbers inside each “Olympic” ring is the same

Place 1 through 7 into the circle to make equal sums

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

Cards are shuffled twice. What was the order of the cards after the first shuffle?

Can you pack these pentacubes to form a rectangular block with at least one odd side length other the side whose length must be a multiple of 5

Tiling a 5-by-5 bathroom with L-shaped triomino tiles

Attacking chessboard squares with 6 pieces

Anna tries to make triangles from broken sticks

Poison ivy chess: Can the king get to safety?

Determine whether the counterfeit coin is heavier or lighter in two weighings on a standard balance

How far on average does the grasshopper need to travel to get home after its drunken jumping spree?

How many Friends are there in the circle?

It was the second, but we were told it was the fifth

Can you arrange 25 whole numbers (not necessarily all different) so that the sum of any three successive terms is even but the sum of all 25 is odd?

How can the knight traverse a chessboard to make a path that sums to 100

What is the least number of colours Peter could use to color the 3x3 square?

Are these colored sets closed under multiplication?

Maximizing the common value of both sides of an equation (part 2)

When can the cat and mouse meet?

Use all eight of the given polygons to tile a parallelogram

How quickly can Zeus get to his destination?

Can you make all the squares the same color?

How to cut wooden beam into 4 parts that can be reassembled into a cube?

Is it true that if he plays long enough there will be a series of consecutive days during which he will play exactly 23 games?

Who wins in this knight-placement game?

Using doubling and last digit deletion, transform 458 into 14. Also transform arbitrary M to arbitrary N

Mate in 2 by Vladimir Nabokov