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ALGOL 68
Assembly
AWK
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BASIC
Berry
brainfuck
C
C#
C++
Civet
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COBOL
Coconut
Common Lisp
Crystal
D
Dart
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J
Janet
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sed
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V
VimL
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Zig
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05AB1E
APL
ArkScript
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
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Stax
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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
Crossword
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CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
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Snake
Sphenic Numbers
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Tutorial
Hole
Golfer
Chars
Time
Submitted
Card Number Validation
KatieLG
78
17ms
16 hours ago
Card Number Validation
anter69
72
17ms
3 days ago
Card Number Validation
lukegustafson
90
19ms
3 days ago
Card Number Validation
Lv0Sys
107
17ms
6 days ago
Card Number Validation
denkyuu1
144
16ms
6 days ago
Card Number Validation
RodAlc24
149
17ms
6 days ago
Card Number Validation
JOrE20
87
17ms
7 days ago
Card Number Validation
Steffan153
🥇
67
21ms
8 days ago
Card Number Validation
firegene
90
16ms
9 days ago
Card Number Validation
Flekay
78
17ms
13 days ago
Card Number Validation
kasarino
299
11ms
20 days ago
Card Number Validation
jbjd
142
11ms
25 days ago
Card Number Validation
ryyyn
🥇
67
22ms
25 days ago
Card Number Validation
Andrey2001
137
9ms
27 days ago
Card Number Validation
tomh1012
139
19ms
16 Jan 2026
Card Number Validation
plcc0
74
17ms
12 Jan 2026
Card Number Validation
solisolu
102
10ms
31 Dec 2025
Card Number Validation
NoneTheFewer
241
11ms
25 Dec 2025
Card Number Validation
benanlam
320
10ms
21 Dec 2025
Card Number Validation
blaztoma
93
18ms
18 Dec 2025
Card Number Validation
yujqiao
117
17ms
16 Dec 2025
Card Number Validation
YAJUE114514
148
10ms
12 Dec 2025
Card Number Validation
snoozingnewt
76
10ms
6 Dec 2025
Card Number Validation
Florian-Mt
136
17ms
5 Dec 2025
Card Number Validation
FortuiteMan
117
17ms
1 Dec 2025
Card Number Validation
KasperKivimaeki
93
17ms
30 Nov 2025
Card Number Validation
TheZwierzLF
149
11ms
24 Nov 2025
Card Number Validation
CornerMercury
72
18ms
23 Nov 2025
Card Number Validation
GodlyProgrammer1
142
18ms
22 Nov 2025
Card Number Validation
vhoulbreque
119
9ms
21 Nov 2025
Card Number Validation
rollershutter
129
17ms
20 Nov 2025
Card Number Validation
Emutis
131
9ms
11 Nov 2025
Card Number Validation
Babafaba
81
17ms
11 Nov 2025
Card Number Validation
kadamkaustubh
150
10ms
8 Nov 2025
Card Number Validation
webmiche
159
11ms
3 Nov 2025
Card Number Validation
albanian-laundromat
74
17ms
3 Nov 2025
Card Number Validation
TJK-S
241
11ms
25 Oct 2025
Card Number Validation
celiendonze
155
10ms
17 Oct 2025
Card Number Validation
lelbal
125
10ms
14 Oct 2025
Card Number Validation
brochmann
152
10ms
12 Oct 2025
Card Number Validation
luuumine
90
17ms
8 Oct 2025
Card Number Validation
CommandLeo
124
10ms
5 Oct 2025
Card Number Validation
qpwoeirut
78
10ms
1 Oct 2025
Card Number Validation
navier-1
173
10ms
22 Sep 2025
Card Number Validation
RobertBurs
237
10ms
22 Sep 2025
Card Number Validation
omero-san
152
10ms
22 Sep 2025
Card Number Validation
InigoK
107
17ms
22 Sep 2025
Card Number Validation
Shotokhan
156
10ms
21 Sep 2025
Card Number Validation
BrunoVisnadi
82
10ms
21 Sep 2025
Card Number Validation
travisdoesmath
106
17ms
7 Sep 2025
Card Number Validation
EthanJantz
230
11ms
5 Sep 2025
Card Number Validation
denisfouchard
153
10ms
21 Aug 2025
Card Number Validation
robin-scragg
103
11ms
21 Aug 2025
Card Number Validation
osNiko
154
9ms
21 Aug 2025
Card Number Validation
wobblybits
137
19ms
17 Aug 2025
Card Number Validation
muser-logiccpu
177
18ms
9 Aug 2025
Card Number Validation
Mikey-Beep
137
17ms
6 Aug 2025
Card Number Validation
vgamula
117
16ms
5 Aug 2025
Card Number Validation
psaban
149
15ms
31 Jul 2025
Card Number Validation
Zhenyu-Bo
228
11ms
30 Jul 2025
Card Number Validation
MeWhenI
96
17ms
30 Jul 2025
Card Number Validation
CaedenHarper
108
17ms
22 Jul 2025
Card Number Validation
RaBa21
93
17ms
19 Jul 2025
Card Number Validation
BREMAUCY
121
19ms
18 Jul 2025
Card Number Validation
andrewjc2000
106
17ms
17 Jul 2025
Card Number Validation
estomagordo
186
10ms
15 Jul 2025
Card Number Validation
fkantelberg
82
11ms
11 Jul 2025
Card Number Validation
dirckvdende
118
17ms
10 Jul 2025
Card Number Validation
clayboll99
176
10ms
10 Jul 2025
Card Number Validation
Stockoh
130
17ms
4 Jul 2025
Card Number Validation
GrayJoKing
91
19ms
2 Jul 2025
Card Number Validation
gautambp
218
11ms
24 Jun 2025
Card Number Validation
artem-aramma
140
18ms
18 Jun 2025
Card Number Validation
keelimeguy
85
19ms
14 Jun 2025
Card Number Validation
smilesformiles3
140
17ms
12 Jun 2025
Card Number Validation
RobGLambert
142
17ms
8 Jun 2025
Card Number Validation
hallvabo
68
20ms
4 Jun 2025
Card Number Validation
guilhem-roy
110
17ms
29 May 2025
Card Number Validation
WillowWispy
127
11ms
25 May 2025
Card Number Validation
kistlerf
143
17ms
19 May 2025