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12 Days of Christmas
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Abundant Numbers
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Billiards
brainfuck
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Christmas Trees
Collatz
Connect Four
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Cubes
Day of Week
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Diamonds
Divisors
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Emojify
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Evil Numbers (Long)
Factorial Factorisation
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Fibonacci
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Fractions
Game of Life
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Intersection
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ISBN
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ln 2
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Mahjong
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Maze
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Minesweeper
Morse Decoder
Morse Encoder
Multitap Input
Musical Chords
N Queens
Nim
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)
Taxicab Numbers
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
Ulam Sequence
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
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
Langton’s Ant
Lyndon Factorization
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
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Snake
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Turtle
Tutorial
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Hole
Golfer
Chars
Time
Submitted
Catalan Numbers
soumyadeep9474
876
2,038ms
2 days ago
Catalan Numbers
HumanoidCPU
1,475
57ms
18 Aug 2026
Catalan Numbers
scpchicken
1,505
1,513ms
3 Aug 2026
Catalan Numbers
retrohun
213
99ms
24 Jul 2026
Catalan Numbers
Herbert00709
125
522ms
13 May 2026
Catalan Numbers
KasperKivimaeki
206
462ms
8 Dec 2025
Catalan Numbers
snoozingnewt
1,393
1,515ms
3 Dec 2025
Catalan Numbers
Carlos-EAC
3,153
1,359ms
23 Nov 2025
Catalan Numbers
qwertyuiop3
154
107ms
26 May 2025
Catalan Numbers
kevinnaviapaiva
669
1,387ms
26 Feb 2025
Catalan Numbers
CaedenHarper
2,907
59ms
24 Jan 2025
Catalan Numbers
snyderek
196
144ms
7 Oct 2024
Catalan Numbers
Mabeloid
3,015
1,332ms
17 Sep 2024
Catalan Numbers
MeWhenI
219
81ms
16 Aug 2024
Catalan Numbers
Alex-x90
147
564ms
6 May 2024
Catalan Numbers
Steffan153
126
557ms
5 May 2024
Catalan Numbers
inventshah
127
600ms
5 May 2024
Catalan Numbers
ovs-code
🥇
122
576ms
5 May 2024
Catalan Numbers
btnlq
🥉
124
444ms
5 May 2024
Catalan Numbers
JayXon
🥇
122
457ms
5 May 2024
Catalan Numbers
sean-niemann
128
525ms
4 May 2024
Catalan Numbers
dokutan
1,017
62ms
1 Apr 2024
Catalan Numbers
KatieLG
3,027
1,277ms
23 Mar 2024
Catalan Numbers
Shanethegamer
2,907
58ms
19 Nov 2023
Catalan Numbers
GolfingSuccess
289
437ms
25 Oct 2023
Catalan Numbers
dranjohn
500
1,434ms
11 Sep 2023
Catalan Numbers
CatsAreFluffy
272
70ms
2 Feb 2023
Catalan Numbers
nwellnhof
166
71ms
7 Dec 2022
Catalan Numbers
KatieLG-Transpiler
3,050
1,330ms
24 Jun 2022
Catalan Numbers
jared-hughes
207
470ms
24 Jun 2022
Catalan Numbers
iakolzin
277
3,004ms
26 May 2022
Catalan Numbers
janbehrens
2,907
56ms
5 Mar 2022
Catalan Numbers
m-tkach
338
443ms
31 Jan 2022
Catalan Numbers
sisyphus-ppcg
190
64ms
29 Jan 2022