Skip to main content
Johannes's user avatar
Johannes's user avatar
Johannes's user avatar
Johannes
  • Member for 9 years, 5 months
  • Last seen more than a month ago
18 votes
Accepted

Number Series - 1,20,171

12 votes
Accepted

Four-by-four square

9 votes
Accepted

3d x 1d = 2d x 2d

9 votes
Accepted

The Good, the Bad and the Ugly

8 votes

Triangle in a circle

6 votes
Accepted

How long can a population last without incest?

5 votes

Quick and dirty: painting a fence

4 votes

Find length, width and height of a cuboid

4 votes

Digging a tunnel between random locations

4 votes

A Tomb for Fibonacci

3 votes

Puzzle pieces, each in contact with 5 others

3 votes

When should you rest?

2 votes

An exercise on the powers without using the logarithm function

2 votes

Largest cages Killer Sudoku

1 vote
Accepted

Polygons circumscribed by lines