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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
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Arrows
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ASCII Table
Billiards
brainfuck
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
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Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
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Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Happy Numbers
Happy Numbers (Long)
Hexdump
Hilbert Curve
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
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Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
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Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
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Morse Encoder
Musical Chords
N Queens
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Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
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Poker
Polyominoes
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Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars GPT
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Transpose Sentence
Trinomial Triangle
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Calendar
Connect Four
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CSS Grid
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Flags
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Hexagonal Spiral
Highly Composite Numbers
Minesweeper
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p-adic Expansion
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Hole
Golfer
Chars
Time
Submitted
Happy Numbers (Long)
kmathis22
113
621ms
16 days ago
Happy Numbers (Long)
Babafaba
122
393ms
16 days ago
Happy Numbers (Long)
namelessiw
118
361ms
24 days ago
Happy Numbers (Long)
stefangimmillaro
111
351ms
24 days ago
Happy Numbers (Long)
snoozingnewt
125
371ms
27 days ago
Happy Numbers (Long)
CaedenHarper
118
376ms
27 days ago
Happy Numbers (Long)
Yewzir
110
369ms
2 Oct 2025
Happy Numbers (Long)
Schmitt-Very-Cool
128
368ms
30 Sep 2025
Happy Numbers (Long)
JayXon
🥇
101
404ms
26 Sep 2025
Happy Numbers (Long)
sean-niemann
🥇
101
599ms
26 Sep 2025
Happy Numbers (Long)
DialFrost
112
759ms
26 Sep 2025
Happy Numbers (Long)
Liibe
194
368ms
25 Sep 2025
Happy Numbers (Long)
nwellnhof
🥉
103
371ms
25 Sep 2025
Happy Numbers (Long)
Shanethegamer
110
372ms
25 Sep 2025
Happy Numbers (Long)
dokutan
202
653ms
24 Sep 2025
Happy Numbers (Long)
jared-hughes
123
670ms
24 Sep 2025
Happy Numbers (Long)
KatieLG
599
352ms
24 Sep 2025
Happy Numbers (Long)
Apataras
157
320ms
20 Aug 2025
Happy Numbers (Long)
yoshykai
181
634ms
15 Apr 2025
Happy Numbers (Long)
Jacob385
237
365ms
21 Feb 2025
Happy Numbers (Long)
Mabeloid
766
511ms
18 Sep 2024
Happy Numbers (Long)
ravnskjaer
166
346ms
11 Sep 2024
Happy Numbers (Long)
bac0id
220
393ms
30 Jun 2024
Happy Numbers (Long)
HumanoidCPU
246
425ms
22 Jun 2024
Happy Numbers (Long)
msbranicky
188
376ms
9 Jan 2024
Happy Numbers (Long)
h3ra993huskp
150
432ms
29 Dec 2023
Happy Numbers (Long)
PierceZ
798
567ms
29 Nov 2023
Happy Numbers (Long)
benradclyffe
195
367ms
15 May 2023
Happy Numbers (Long)
Steffan153
139
466ms
5 Mar 2023
Happy Numbers (Long)
MeWhenI
147
331ms
9 Feb 2023
Happy Numbers (Long)
ToxicP1e
336
361ms
20 Jan 2023
Happy Numbers (Long)
retrohun
766
302ms
27 Dec 2022
Happy Numbers (Long)
KatieLG-Transpiler
622
397ms
23 Jun 2022
Happy Numbers (Long)
Lydxn
139
342ms
25 Apr 2022
Happy Numbers (Long)
tejokumar
495
544ms
22 Jan 2022
Happy Numbers (Long)
inventshah
148
330ms
18 Jan 2022
Happy Numbers (Long)
bwat2
254
363ms
7 Jan 2022
Happy Numbers (Long)
Irratix
147
454ms
11 Dec 2021
Happy Numbers (Long)
cbrt-x
162
327ms
25 Sep 2021
Happy Numbers (Long)
primo-ppcg
147
323ms
23 Sep 2021
Happy Numbers (Long)
janbehrens
154
434ms
20 Sep 2021