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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
Arithmetic Numbers
Arrows
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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
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
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
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Snake
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Tower of Hanoi
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Tutorial
Hole
Golfer
Chars
Time
Submitted
Musical Chords
snoozingnewt
429
3ms
22 days ago
Musical Chords
BREMAUCY
3,875
4ms
27 Sep 2025
Musical Chords
blaztoma
817
2ms
6 Sep 2025
Musical Chords
heanyang1
383
3ms
28 May 2025
Musical Chords
JayXon
💎
129
3ms
18 May 2025
Musical Chords
saito-ta
🥈
130
7ms
17 May 2025
Musical Chords
HumanoidCPU
836
3ms
15 May 2025
Musical Chords
madex
529
3ms
4 Feb 2025
Musical Chords
zt14427
2,565
2ms
3 Feb 2025
Musical Chords
KasperKivimaeki
165
3ms
24 Jan 2025
Musical Chords
MeWhenI
594
3ms
5 Jul 2024
Musical Chords
neel11235813
419
2ms
1 Apr 2024
Musical Chords
KatieLG
5,752
5ms
29 Mar 2024
Musical Chords
ovs-code
🥉
154
2ms
21 Mar 2024
Musical Chords
SB-945
1,157
3ms
24 Nov 2023
Musical Chords
Schmitt-Very-Cool
1,051
2ms
22 Nov 2023
Musical Chords
jeff-at-tamer-dot-codes
438
2ms
26 Aug 2023
Musical Chords
jacobly0
1,813
3ms
15 Aug 2023
Musical Chords
janbehrens
481
2ms
7 Apr 2023
Musical Chords
CatsAreFluffy
324
2ms
4 Feb 2023
Musical Chords
SirBogman
213
2ms
27 Jan 2023
Musical Chords
jared-hughes
229
2ms
17 Jul 2022
Musical Chords
retrohun
5,116
3ms
15 Feb 2022
Musical Chords
scpchicken
2,644
3ms
9 Feb 2022
Musical Chords
lynn
329
2ms
8 Feb 2022
Musical Chords
NewDefectus
234
2ms
27 Nov 2021
Musical Chords
nwellnhof
183
2ms
4 Nov 2021