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APL
Arturo
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Egel
Fennel
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Hare
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Hy
Knight
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Luau
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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
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Arabic to Roman
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Arrows
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Billiards
brainfuck
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Card Number Validation
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Catalan’s Constant
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Collatz
Connect Four
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Cubes
Day of Week
DFA Simulator
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Divisors
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Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
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Fractions
Game of Life
Gijswijt’s Sequence
Gray Code Decoder
Gray Code Encoder
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Happy Numbers (Long)
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Intersection
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ln 2
Look and Say
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Maze
Medal Tally
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Morse Encoder
Multitap Input
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N Queens
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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)
Taxicab Numbers
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
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
Chess960 Decoder
Chess960 Encoder
Crossword
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CSS Grid
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Ellipse Perimeters
Flags
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Nim
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p-adic Expansion
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Tutorial
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Hole
Golfer
Bytes
Time
Submitted
Catalan’s Constant
ethanlally
🥈
172
408ms
7 days ago
Catalan’s Constant
kmathis22
303
939ms
20 May 2026
Catalan’s Constant
janbehrens
294
1,375ms
16 May 2026
Catalan’s Constant
Lydxn
💎
141
514ms
10 May 2026
Catalan’s Constant
JOrE20
1,066
428ms
6 Jan 2026
Catalan’s Constant
amazingalek
1,030
397ms
19 Dec 2025
Catalan’s Constant
ravnskjaer
659
510ms
15 Dec 2025
Catalan’s Constant
KatieLG
1,039
443ms
30 Nov 2025
Catalan’s Constant
h3ra993huskp
724
430ms
30 Nov 2025
Catalan’s Constant
tigerdan2
1,033
394ms
30 Nov 2025
Catalan’s Constant
HumanoidCPU
1,028
442ms
8 Nov 2025
Catalan’s Constant
MeWhenI
226
535ms
7 Nov 2025
Catalan’s Constant
gigaprofisi
1,028
509ms
5 Nov 2025
Catalan’s Constant
CaedenHarper
392
1,101ms
12 Oct 2025
Catalan’s Constant
stefangimmillaro
222
497ms
6 Oct 2025
Catalan’s Constant
Yewzir
1,028
442ms
2 Oct 2025
Catalan’s Constant
Schmitt-Very-Cool
1,030
462ms
26 Sep 2025
Catalan’s Constant
Shanethegamer
1,028
460ms
25 Sep 2025
Catalan’s Constant
sean-niemann
237
510ms
24 Sep 2025
Catalan’s Constant
dokutan
596
466ms
24 Sep 2025
Catalan’s Constant
jared-hughes
276
598ms
24 Sep 2025
Catalan’s Constant
MrGagnonHPS
1,068
349ms
9 May 2025
Catalan’s Constant
Mabeloid
1,075
359ms
17 Sep 2024
Catalan’s Constant
bac0id
1,065
381ms
26 Jun 2024
Catalan’s Constant
Jacob385
1,065
374ms
16 Apr 2024
Catalan’s Constant
madeforlosers
1,065
368ms
15 Dec 2023
Catalan’s Constant
carlsoncorey16
1,068
342ms
29 Oct 2023
Catalan’s Constant
jccummi1
1,068
376ms
29 Oct 2023
Catalan’s Constant
ped-renguin
1,066
372ms
29 Oct 2023
Catalan’s Constant
aevykt
1,072
342ms
29 Oct 2023
Catalan’s Constant
Mch47
1,069
386ms
29 Oct 2023
Catalan’s Constant
crizin
687
394ms
15 Sep 2023
Catalan’s Constant
msbranicky
1,067
372ms
15 Sep 2023
Catalan’s Constant
TaserTheFox
1,071
319ms
26 May 2023
Catalan’s Constant
retrohun
1,075
350ms
27 Dec 2022
Catalan’s Constant
KatieLG-Transpiler
1,073
369ms
23 Jun 2022
Catalan’s Constant
bwat2
559
1,138ms
8 Feb 2022
Catalan’s Constant
primo-ppcg
🥉
188
529ms
20 Jan 2022
Catalan’s Constant
neihousaigaai
308
633ms
5 Jan 2022