Welcome to the challenge hub.


Login and click a challenge to get started. Click the table headers to sort, or restrict displayed challenges with the tags below.


ALL
stringProc
listOps
stateMgmt
path+graphs
maths
permutation
paths+graphs
Number Difficulty Tag Name
0 1.8
stringProc
What's a numpad?
1 1.9
stringProc
Rose by any other name
2 2.8
listOps
One is all you need
3 3.5
paths+graphs
Short walks
4 4.1
maths
This is good co-primen
5 3.5
stateMgmt
Snake eyes
6 3.7
permutation
Let me count the ways
7 4.0
maths
What is best in life?
8 6.9
stateMgmt
Cron Flakes
9 5.2
maths
Big Data?
10 6.0
paths+graphs
Troll Toll
11 5.7
listOps
Boxed In
12 3.4
listOps
A Day In The Lift
13 5.9
listOps
O RLE?
14 5.2
paths+graphs
That's a bingo
15 5.5
paths+graphs
word wore more mare maze
16 6.2
stringProc
Keming
17 3.8
stateMgmt
The Beautiful Shame
18 4.9
maths
Emit time
19 6.2
stateMgmt
It's alive
20 3.6
stateMgmt
Blackjack
21 4.5
paths+graphs
Clean Sweep
22 3.9
stringProc
Veni Vidi Vitavi
23 4.0
stringProc
Fair Play
24 7.4
path+graphs
Huff and Puff
25 2.6
listOps
S'morse