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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
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
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Minesweeper
Morse Decoder
Morse Encoder
Musical Chords
N Queens
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Partition Numbers
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Polyominoes
Prime Numbers
Prime Numbers (Long)
Proximity Grid
QR Decoder
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
Binary Lambda Calculus
Calendar
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
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Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
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p-adic Expansion
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QR Encoder
Quadratic Formula
Semiprime Numbers
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Snake
Sphenic Numbers
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Tutorial
Hole
Golfer
Chars
Time
Submitted
Catalan’s Constant
CaedenHarper
208
1,139ms
21 Oct 2025
Catalan’s Constant
tomh1012
257
425ms
10 Sep 2025
Catalan’s Constant
Yax42
223
383ms
6 Aug 2025
Catalan’s Constant
namelessiw
143
346ms
21 Jul 2025
Catalan’s Constant
gigaprofisi
1,024
317ms
17 Jun 2025
Catalan’s Constant
SpareManiKatti
1,020
328ms
7 Apr 2025
Catalan’s Constant
stefangimmillaro
134
392ms
30 Dec 2024
Catalan’s Constant
Mabeloid
1,020
314ms
17 Sep 2024
Catalan’s Constant
dokutan
246
340ms
21 Aug 2024
Catalan’s Constant
acer-xq
223
1,414ms
9 Aug 2024
Catalan’s Constant
rifatx
226
1,012ms
19 Jul 2024
Catalan’s Constant
HumanoidCPU
1,020
311ms
9 May 2024
Catalan’s Constant
KatieLG
1,020
313ms
30 Apr 2024
Catalan’s Constant
Yewzir
242
356ms
11 Feb 2024
Catalan’s Constant
SirBogman
135
369ms
24 Jan 2024
Catalan’s Constant
msbranicky
590
329ms
10 Jan 2024
Catalan’s Constant
madeforlosers
1,020
309ms
14 Dec 2023
Catalan’s Constant
AdrienHache
140
364ms
9 Dec 2023
Catalan’s Constant
sean-niemann
134
371ms
2 Nov 2023
Catalan’s Constant
Shanethegamer
1,020
322ms
13 Sep 2023
Catalan’s Constant
MeWhenI
132
368ms
1 Jul 2023
Catalan’s Constant
Pyro569
1,024
311ms
25 Jun 2023
Catalan’s Constant
TaserTheFox
1,020
313ms
26 May 2023
Catalan’s Constant
postie77
1,016
312ms
18 Apr 2023
Catalan’s Constant
tomtheisen
150
399ms
10 Jan 2023
Catalan’s Constant
retrohun
1,020
310ms
27 Dec 2022
Catalan’s Constant
JayXon
🥉
127
365ms
4 Sep 2022
Catalan’s Constant
KatieLG-Transpiler
1,024
314ms
23 Jun 2022
Catalan’s Constant
annaproxy
140
350ms
5 May 2022
Catalan’s Constant
Lydxn
💎
123
348ms
21 Jan 2022
Catalan’s Constant
primo-ppcg
🥈
126
393ms
20 Jan 2022
Catalan’s Constant
janbehrens
187
548ms
2 Jan 2022