Sign in
Sign up
Solve
Go to problems at your level
Time trial
Rush
Discover
Recommendations
Practice
All problems
Filter problems
Problem groups
Pattern search
Social
Friends
Users
Friend activity
Community
Forum
Discord
Leaderboard
Site
Info
Add problem
Statistics
Download
RSS
Sign in
Sign up
kaf (4 dan)
Last here date
2023-11-10
Registration date
2006-05-01
Send Private Message
Level progress
Created problems
see all
8 dan
12 years ago
8 dan
13 years ago
6 dan
13 years ago
11 kyu
13 years ago
5 dan
13 years ago
4 dan
13 years ago
Favorited problems
see all
9 dan
11 years ago
Aristotle
9 dan
1 year ago
smartaleck
8 dan
5 years ago
kaf
5 dan
5 years ago
kaf
5 dan
4 years ago
kaf
7 dan
17 years ago
kaf
Stats
Problems solved
3598
Problems added
149
Rating
4 dan
Friends
0
Comments
2104
Rush score
0
Achievements
0