30
Last seen 22 days ago
Member for 9 months, 20 days
Difficulty Advanced
Initiation
First
All Upper I
395
2
0
Home
First
Missing Number
8
6
1
First
Grille Cipher Attack
8
0
0
First
Find Enemy
11
0
0
First
Rotating Grille Cipher
34
0
0
First
8 Puzzle
57
0
0
First
Scytale Encryption
66
0
0
set&dict
Life Counter
81
0
0
yield
Atbash Cipher
83
0
0
First
Conversion into CamelCase
308
1
0
First
Split List
859
0
0
First
Xs and Os Referee
915
1
0
Electronic Station
First
Blood distribution
17
0
0
First
Chess Knight
95
0
0
First
Sort by Extension
176
2
0
First
Similar Triangles
391
0
0
Scientific Expedition
First
Longest Common Prefix
4
3
0
First
Combining Celebrity Names
19
0
0
First
Aggregate by Operation
28
1
0
First
Follow Instructions
88
6
0
First
Caps Lock
102
3
0
First
Common Words
310
4
1
First
The Hidden Word
508
0
0
First
Letter Queue
806
0
0
First
Striped Words
1142
0
0
First
Pangram
1573
0
0
First
Cipher Map
1640
0
0
First
Secret Message
4767
0
0
O'Reilly
First
Bridge Routine
8
0
0
First
All Roads Lead to Rome!
13
0
0
First
Staircase
13
0
0
First
Cut Into Squares
17
0
0
First
"Lunar" Multiply
20
0
0
First
Lightbulb More
28
0
0
First
Lightbulb Operating
29
0
0
First
Determine the Order
33
0
0
one
Chemical Analysis
40
0
0
First
Reverse Every Ascending
56
4
0
First
Multiple Lightbulbs
97
0
0
First
Frequency Sorting
255
0
0
First
Median of Three
344
0
0
Incinerator
First
The Weapons
58
0
0
First
Straight Fight
140
0
0
First
The Vampires
144
0
0
First
Geometry Figures
162
0
0
First
The Healers
165
0
0
First
Microwave Ovens
170
0
0
First
The Lancers
171
0
0
First
Voice TV Control
208
0
0
First
Army Battles
248
0
0
First
Text Editor
279
0
0
First
The Defenders
356
0
0
First
Multicolored Lamp
373
0
0
First
The Warriors
534
0
0
First
Friends
787
0
0
Mine
First
Tricky String
2
6
1
First
One Switch Strings
8
2
0
First
Maximum Among Three
11
3
0
First
Checking Perfect Power
11
0
0
First
Fast Train
13
4
0
First
e+pi
14
0
0
First
Close Enough
14
0
0
First
15-puzzle Solvability
21
0
0
First
Garland
21
0
0
First
Champernowne Word
24
0
0
First
The Hollow Diamond
29
0
0
First
Count And Say
31
0
0
First
Sort Sorted Groups
46
0
0
First
Escape
79
0
0
First
Sum of Digits
115
0
1
First
Color Map
124
0
0
First
Can Balance
162
0
0
First
Best Stock
174
5
0
First
Currency Style
191
0
0
First
The Greatest Common Divisor
486
0
0
First
Caesar Cipher (encryptor)
701
0
0
First
Binary Count
767
1
0
Ice Base
First
Count Divisibles in Range
1
8
1
First
Stepping Stones Puzzle
6
2
0
First
Armstrong Number Checking
18
3
0
First
Long Pressed
25
0
0
First
Postfix Evaluation
26
0
0
Short
Ordinary Cardinals
26
0
0
recurse
Adjacent Letters
76
0
0
First
Identify Block
110
0
0
First
Berserk Rook
126
0
0
First
Count Chains
141
0
0
Second
Find Quotes
142
0
0
First
New Cities
156
0
0
First
Node Disconnected Users
192
0
0
First
Find Quotes
419
0
0
First
Long Repeat
1031
0
0
First
Monkey Typing
2332
0
0
Alice In Wonderland
Short
Cleaning Robot
7
0
0
First
Overlapping Disks
11
0
0
First
Nonogram Encode
31
0
0
First
Duplicate Zeros
33
2
0
First
Greedy Number
42
0
0
First
Backspace Apply
50
0
0
First
Swap Nodes
60
4
0
First
Unique Email Addresses
68
0
0
First
Flood Area
77
0
0
First
Shorter Set
85
0
0
First
When "k" is Enough!
86
0
0
First
End Zeros
89
7
1
First
Ascending List
96
5
0
First
Middle Characters
122
1
0
First
IP Network: Route Summarization
178
0
0
First
Nearest Value
179
4
1
First
Digits Doublets
230
0
0
First
Zigzag Array
241
0
0
First
Words Order
271
1
0
First
The Fastest Horse
285
0
0
First
Backward Each Word
313
2
1
one-liner
Multiplication Table
334
0
0
First
Days Between
785
2
1
First
First Word
1717
0
0
First
Bigger Price
1723
0
0
GitHub
First
The Cheapest Flight
34
3
0
First
Simplify Unix Path
59
0
0
First
Cookies
101
1
0
First
Evenly Spaced Trees
126
0
0
itertools.combinations
Long Repeat Inside
204
0
0
First
Expand Intervals
274
0
0
Dropbox
First
Fuzzy String Matching
4
5
0
First
Exploring Wythoff Array
4
3
1
First
Collatz Ztalloc
13
0
0
First
Text Formatting
14
6
0
First
Count Squares
17
0
0
First
Checkers Capture
19
0
0
one pass
Longest Substring of Unique Characters
21
0
0
First
Count Substring Occurrences
25
0
0
First
Fibonacci Spiral's End
26
0
0
First
Revorse the vewels
26
0
0
First
Count Morse
31
0
0
First
Reveal the Number
34
0
0
First
Fibonacci Poem
38
0
0
First
Perfect Number Checking
40
0
0
First
Nonogram Row
40
0
0
First
Integer Sign Determination
45
0
0
First
Place Queens
66
0
0
First
Interesting, intersecting
67
0
0
First
Not in Order
70
0
0
First
Is String a Number? (Part II)
79
0
0
First
Switch Keys to Values
87
0
0
First
Three Points Circle
403
0
0
First
Humpty Dumpty Form
419
0
0
First
Speech Module
598
1
0
First
Popular Words
1492
0
0
First
Sum Numbers
2524
0
1
break
Three Words
4355
0
0
PyCon TW
First
Building Visibility
101
0
0
First
How Much Gold
104
0
0
First
Golden Pyramid
153
2
1
First
Sum Consecutives
167
0
0
First
Robot Sort
183
0
1
First
Network Attack
306
0
0
First
Double Substring
314
0
0
First
House Password
3685
0
1
Storage
First
Calculator-IV
3
4
0
weird
Calculator-III
9
0
0
First
Battle Dice
28
0
0
First
Latest ISO datetime
85
0
0
First
English to Braille Translator
115
0
0
First
Restricted Prime
126
0
0
First
The Rows of Cakes
202
0
0
First
Word Pattern
282
0
0
First
Moria Doors
287
0
0
First
Saw the Stick
394
0
0
First
Skew-symmetric Matrix
705
0
0
HubSpot
First
Home Coming
10
0
0
First
Family Dinner
20
0
0
First
Park Benches
23
0
0
First
Count Comprehensions
25
0
0
First
Triangular Islands
41
0
0
one-liner
Team Play
42
0
0
First
Workout
44
0
0
First
Connect Stars
46
0
0
First
Next Birthday
54
0
0
First
Square Board
72
0
0
First
Repeating Decimals
113
0
0
one-liner
Non Empty Lines
178
0
0
First
Replace First
318
3
0
First
Fizz Buzz
391
4
1
First
Second Index
580
2
1
First
All Upper II
590
0
0
First
Remove All Before
1050
0
1
First
The Hamming Distance
1324
0
0
First
Number Base
3015
0
0
Blizzard
First
List Beautify
28
0
0
one-liner
Weekend Counter
66
3
1
First
Useless Flights
67
0
0
First
Reversed Permutation Index
91
0
0
First
Permutation Index
100
0
0
First
The First Working Day
170
0
0
First
Stair Steps
204
0
0
Rock
First
Write Quadratic Equation
19
0
0
First
River Crossing
23
0
0
First
Rolling 🎲!
28
0
1
one-liner
Parity Bit Generator
41
3
0
First
Water Jars
65
0
0
First
Replace with Biggest
66
0
0
First
Web Log Sessions
86
0
0
Shelter
heapq
Climbing Route
34
0
0
heapq
Delivery Drone
38
0
0
First
Landing Site
38
0
0
First
The Lantern Festival
42
0
0
First
Halloween Monsters
55
0
0
First
One line Drawing
79
0
0
Obvious expression
AMSCO Cipher
107
0
0
First
ADFGVX Cipher
149
0
0
First
Completely Empty
172
0
0
First
Pattern Recognition
184
0
0
First
Seven Segment
241
0
0
First
Ghosts Age
758
0
0
Codeship
First
Texas Referee
72
0
0
First
The Square Chest
360
0
0
First
Pearls in the Box
416
0
0
Hermit
First
Integer Palindrome
83
0
0
first possible placement
Colder-Warmer
85
0
0
odd divisors
Count Consecutive Summers
370
0
0
Watchtower
Gaussian
Wall Keeper
58
0
0
Escher
First
The Secret Room
16
5
2
First
The Stones
21
5
2
First
Graphical Key
49
0
0
First
Treasures
52
0
0
First
The Tower
59
0
0
First
Hypercube
63
0
0
First
The Buttons
65
0
0
First
Card Game
76
0
0
First
Keys and Locks
100
0
0
First
Safe Code
111
0
0
First
Wild Dogs
144
0
0
First
The Stone Wall
236
0
0
First
Ground for the House
244
0
0
First
Compass, Map and Spyglass
259
0
0
First
The Ship Teams
427
0
0
