Daniel Mathias's user avatar
Daniel Mathias's user avatar
Daniel Mathias's user avatar
Daniel Mathias
  • Member for 5 years, 2 months
  • Last seen this week
29 votes

Pythagorean pentagons

21 votes

Join six cities with roads

4 votes
Accepted

6x6 grid with no three cells of one colour in a line

2 votes
Accepted

4x4 grid with no three cells of one colour in a line

2 votes

Strings of Kind Numbers

23 votes

Tiling a square with right-angled triangles

13 votes
Accepted

Math is Awesome

7 votes
Accepted

Letters and Numbers

5 votes

Find maximum circular array sum

7 votes
Accepted

Find the optimal dividing line

6 votes
Accepted

Chess, but with gravity? #1

22 votes
Accepted

Three 8-letter words with at least 23 different letters

7 votes

Dissect this figure into four pieces which can be reassembled to form a square

1 vote
Accepted

Anyone up for a 3x3x3 Hidato?

7 votes
Accepted

In a certain code 'NATIONAL' is written as 'JUBOKZMN'. How is 'ELECTION' written in that code?

4 votes
Accepted

Minimum function optimization puzzle #3: 3 functions

1 vote
Accepted

Counting puzzle #1: Function combinations

1 vote
Accepted

Feedback on a themed Nonogram/Hidato puzzle combo with a cell color gimmick

6 votes
Accepted

Touching Base (Checkered Fillomino)

6 votes
Accepted

The Diamond of Columbus

6 votes

Sliding crosses in a 5x5 grid

8 votes

Primeable numbers

11 votes
Accepted

Rolling tetrahedra

8 votes
Accepted

Numbers that are averages of their digits

3 votes
Accepted

Number of 1's needed to write all primes up to P

0 votes

2x2 Rubik, last two corners, cannot solve, not sure it's possible

4 votes

Connect colored dots - puzzle

15 votes
Accepted

An Almost-squarish set of numbers

13 votes
Accepted

Cutting a square into integer triangles

9 votes

Folding to One Triangle

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