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Florian F
  • Member for 7 years, 11 months
  • Last seen this week
  • Geneva, Switzerland
109 votes
2 answers
10k views

Prove that π > 3

35 votes
1 answer
3k views

Cut the disk with a hole in four equal pieces

35 votes
3 answers
1k views

The maze one should not enter

26 votes
5 answers
2k views

Pythagorean quilts

17 votes
2 answers
855 views

Santa Claus flies to the South Pole

17 votes
1 answer
386 views

Sharing a field among 4 sons

16 votes
4 answers
1k views

February 2017 golf

15 votes
1 answer
329 views

Renegade, epitasis, and then what?

15 votes
1 answer
706 views

Arrange ten pawns into ten lines of three

13 votes
1 answer
619 views

All distances different on a chess board

12 votes
1 answer
254 views

Please help me fix my intestine

12 votes
2 answers
732 views

Descramble the scrambled text

11 votes
5 answers
2k views

Sorting cards using max 3 stacks

11 votes
2 answers
564 views

The alien quantum-tunnelling hyperking labyrinth escape

10 votes
1 answer
343 views

Pythagorean triangle dissection

8 votes
1 answer
157 views

Black-hat/white-hat logicians with a bell and a meal

7 votes
1 answer
234 views

How do you go from 2021 to 2022?

7 votes
3 answers
270 views

How many stickers can a Rubik's Cube lose?

7 votes
1 answer
191 views

13 scales and a ... fake scale

6 votes
2 answers
338 views

A place on Earth, a visual association puzzle

6 votes
13 answers
4k views

Yet another matchstick puzzle: 14 = 5 [closed]

6 votes
1 answer
104 views

Palindrome from the first 16 *roman* numbers

5 votes
3 answers
301 views

The vaccine distribution conundrum

4 votes
2 answers
274 views

Arrange the wooden blocks in the box

3 votes
1 answer
142 views

Fill in numbers on the cube ... again!

2 votes
1 answer
201 views

Something special about 2022-02-02

1 vote
0 answers
195 views

Ammann chair tiling puzzle

1 vote
2 answers
81 views

Warm, round, and 40 Mm long