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ALGOL 68
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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
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Continued Fractions
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
Multitap Input
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
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
Connect Four
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Flags
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p-adic Expansion
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Chars
Time
Submitted
Musical Chords
StefanHabel
240
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Lv0Sys
146
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162
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🥇
156
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19 days ago
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76
564ms
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78
385ms
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83
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503
19ms
20 days ago
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116
48ms
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Musical Chords
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🥉
373
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🥈
204
228ms
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Musical Chords
dokutan
276
65ms
22 days ago
Musical Chords
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498
996ms
22 days ago
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4,944
267ms
23 days ago
Musical Chords
sean-niemann
🥈
192
381ms
25 days ago
Musical Chords
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101
1,369ms
25 days ago
Musical Chords
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93
422ms
25 days ago
Musical Chords
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100
22ms
25 days ago
Musical Chords
sean-niemann
🥈
74
39ms
25 days ago
Musical Chords
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💎
175
9ms
27 days ago
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rucin93
💎
209
6ms
21 Jan 2026
Musical Chords
edsrzf
95
161ms
17 Jan 2026
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HumanoidCPU
475
490ms
14 Jan 2026
Musical Chords
CaedenHarper
312
32ms
12 Jan 2026
Musical Chords
HumanoidCPU
437
390ms
12 Jan 2026
Musical Chords
KatieLG
4,847
11ms
11 Jan 2026
Musical Chords
HPWiz
💎
98
2,125ms
4 Jan 2026
Musical Chords
CornerMercury
109
12ms
31 Dec 2025
Musical Chords
IISResetMe
353
1,839ms
30 Dec 2025
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dokutan
268
19ms
26 Dec 2025
Musical Chords
blaztoma
💎
332
42ms
25 Dec 2025
Musical Chords
blaztoma
147
11ms
25 Dec 2025
Musical Chords
edsrzf
💎
175
112ms
23 Dec 2025
Musical Chords
blaztoma
🥈
195
107ms
23 Dec 2025
Musical Chords
blaztoma
🥉
370
27ms
21 Dec 2025
Musical Chords
AlephSquirrel
68
6ms
18 Dec 2025
Musical Chords
gigaprofisi
445
12ms
17 Dec 2025
Musical Chords
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🥉
231
7ms
14 Dec 2025
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JOrE20
1,298
482ms
10 Dec 2025
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277
13ms
4 Dec 2025
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anter69
115
20ms
4 Dec 2025
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anter69
103
35ms
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FortuiteMan
257
19ms
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KatieLG
14,229
90ms
30 Nov 2025
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h3ra993huskp
501
522ms
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Musical Chords
ndren
141
14ms
26 Nov 2025
Musical Chords
AidanWalter
1,984
1,584ms
26 Nov 2025
Musical Chords
AidanWalter
2,281
200ms
26 Nov 2025
Musical Chords
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2,139
523ms
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Musical Chords
Kacarott
🥈
235
68ms
24 Nov 2025
Musical Chords
edsrzf
💎
150
6ms
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💎
172
10ms
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edsrzf
🥈
286
41ms
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edsrzf
💎
180
22ms
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Musical Chords
kg583
💎
220
208ms
24 Nov 2025
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edsrzf
363
280ms
23 Nov 2025
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KatieLG
5,673
5ms
21 Nov 2025
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329
158ms
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72
67ms
17 Nov 2025
Musical Chords
HPWiz
🥇
49
3ms
17 Nov 2025
Musical Chords
Yewzir
🥉
1,003
2,160ms
14 Nov 2025