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hole will go live in approximately
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. Why not try and solve it ahead of time?
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λ
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φ
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𝑒
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p-adic Expansion
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VimL
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05AB1E
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
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All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Alphabetic Numbers
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Chess Move Validation
Christmas Trees
Collatz
Connect Four
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
Gray Code Decoder
Gray Code Encoder
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
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
Smooth Numbers
Snake
Sphenic Numbers
Thue–Morse Constant
Turtle
Tutorial
Yellowstone Permutation
Hole
Golfer
Bytes
Time
Submitted
Happy Numbers (Long)
RarePlutonian
99
20ms
15 hours ago
Happy Numbers (Long)
Edjyzod
101
22ms
23 hours ago
Happy Numbers (Long)
Europe2048
15
640ms
39 hours ago
Happy Numbers (Long)
Steffan153
72
195ms
40 hours ago
Happy Numbers (Long)
snoozingnewt
98
86ms
2 days ago
Happy Numbers (Long)
Steffan153
🥉
132
6ms
2 days ago
Happy Numbers (Long)
Steffan153
🥇
112
100ms
2 days ago
Happy Numbers (Long)
snoozingnewt
75
81ms
3 days ago
Happy Numbers (Long)
snoozingnewt
🥇
112
100ms
3 days ago
Happy Numbers (Long)
JOrE20
112
351ms
5 days ago
Happy Numbers (Long)
emgordon154
🥉
130
276ms
5 days ago
Happy Numbers (Long)
bpharaldsson
133
371ms
7 days ago
Happy Numbers (Long)
zzh1996
110
388ms
8 days ago
Happy Numbers (Long)
zzh1996
83
2ms
8 days ago
Happy Numbers (Long)
Europe2048
35
11ms
9 days ago
Happy Numbers (Long)
solisolu
58
39ms
12 days ago
Happy Numbers (Long)
HumanoidCPU
185
2ms
14 days ago
Happy Numbers (Long)
dokutan
530
35ms
14 days ago
Happy Numbers (Long)
zzh1996
108
516ms
15 days ago
Happy Numbers (Long)
christos-cantina-security
14
23ms
15 days ago
Happy Numbers (Long)
christos-cantina-security
100
15ms
15 days ago
Happy Numbers (Long)
KatieLG
563
35ms
16 days ago
Happy Numbers (Long)
HumanoidCPU
580
406ms
17 days ago
Happy Numbers (Long)
jordansafer
90
13ms
19 days ago
Happy Numbers (Long)
dpamar
75
75ms
19 days ago
Happy Numbers (Long)
HumanoidCPU
1,266
36ms
20 days ago
Happy Numbers (Long)
a6166231
77
9ms
21 days ago
Happy Numbers (Long)
albanian-laundromat
139
91ms
23 days ago
Happy Numbers (Long)
Europe2048
74
8ms
23 days ago
Happy Numbers (Long)
JayXon
🥇
129
280ms
24 days ago
Happy Numbers (Long)
kkoenig
🥇
129
285ms
24 days ago
Happy Numbers (Long)
tailorspy
110
65ms
26 days ago
Happy Numbers (Long)
levigutt
77
79ms
26 days ago
Happy Numbers (Long)
albanian-laundromat
179
1,565ms
26 days ago
Happy Numbers (Long)
kcinnu
🥇
176
1,555ms
26 days ago
Happy Numbers (Long)
namelessiw
14
902ms
26 days ago
Happy Numbers (Long)
HumanoidCPU
1,635
2ms
26 days ago
Happy Numbers (Long)
tomh1012
126
9ms
27 days ago
Happy Numbers (Long)
edsrzf
🥇
78
14ms
31 Aug 2026
Happy Numbers (Long)
kg583
🥇
78
14ms
31 Aug 2026
Happy Numbers (Long)
Steffan153
🥇
92
40ms
31 Aug 2026
Happy Numbers (Long)
edsrzf
🥇
92
29ms
31 Aug 2026
Happy Numbers (Long)
kg583
🥇
131
6ms
30 Aug 2026
Happy Numbers (Long)
Florian-Mt
135
23ms
26 Aug 2026
Happy Numbers (Long)
ryyyn
73
183ms
26 Aug 2026
Happy Numbers (Long)
kasarino
148
296ms
26 Aug 2026
Happy Numbers (Long)
Europe2048
51
26ms
26 Aug 2026
Happy Numbers (Long)
Europe2048
14
29ms
26 Aug 2026
Happy Numbers (Long)
emplv
74
10ms
24 Aug 2026
Happy Numbers (Long)
Europe2048
14
260ms
22 Aug 2026
Happy Numbers (Long)
LostSyntax21
1,635
2ms
21 Aug 2026
Happy Numbers (Long)
Matter1024
256
23ms
21 Aug 2026
Happy Numbers (Long)
JOrE20
🥈
136
27ms
21 Aug 2026
Happy Numbers (Long)
egu555
66
8ms
21 Aug 2026
Happy Numbers (Long)
egu555
87
257ms
21 Aug 2026
Happy Numbers (Long)
egu555
54
101ms
21 Aug 2026
Happy Numbers (Long)
egu555
65
89ms
21 Aug 2026
Happy Numbers (Long)
jenova-gemini
88
21ms
19 Aug 2026
Happy Numbers (Long)
retrohun
80
333ms
17 Aug 2026
Happy Numbers (Long)
albanian-laundromat
288
15ms
16 Aug 2026
Happy Numbers (Long)
GolfingSuccess
96
13ms
15 Aug 2026
Happy Numbers (Long)
SuperFola
559
3ms
14 Aug 2026
Happy Numbers (Long)
edsrzf
🥉
130
324ms
11 Aug 2026
Happy Numbers (Long)
ComradeSquirrel
88
79ms
7 Aug 2026
Happy Numbers (Long)
rainruse
97
15ms
7 Aug 2026
Happy Numbers (Long)
ovs-code
🥇
57
5ms
7 Aug 2026
Happy Numbers (Long)
solisolu
80
21ms
7 Aug 2026
Happy Numbers (Long)
Steffan153
🥉
109
403ms
6 Aug 2026
Happy Numbers (Long)
keeki-fami
🥉
97
99ms
4 Aug 2026
Happy Numbers (Long)
emgordon154
14
21ms
1 Aug 2026
Happy Numbers (Long)
emgordon154
98
485ms
1 Aug 2026
Happy Numbers (Long)
dokutan
333
172ms
31 Jul 2026
Happy Numbers (Long)
edsrzf
🥈
91
2ms
31 Jul 2026
Happy Numbers (Long)
JOrE20
🥉
535
7ms
29 Jul 2026
Happy Numbers (Long)
Europe2048
16
3,552ms
27 Jul 2026
Happy Numbers (Long)
Europe2048
88
406ms
27 Jul 2026
Happy Numbers (Long)
nickweissert-star
166
1,171ms
24 Jul 2026
Happy Numbers (Long)
CornerMercury
14
919ms
24 Jul 2026
Happy Numbers (Long)
Waffle3z
🥈
91
3ms
23 Jul 2026
Happy Numbers (Long)
lemmaandrew
48
38ms
20 Jul 2026
Happy Numbers (Long)
denkyuu1
🥇
51
513ms
19 Jul 2026
Happy Numbers (Long)
edsrzf
🥇
108
13ms
19 Jul 2026
Happy Numbers (Long)
retrohun
134
1,696ms
18 Jul 2026
Happy Numbers (Long)
lemmaandrew
93
20ms
18 Jul 2026
Happy Numbers (Long)
lemmaandrew
76
181ms
18 Jul 2026
Happy Numbers (Long)
CaedenHarper
57
41ms
17 Jul 2026
Happy Numbers (Long)
JadonKJones
130
19ms
15 Jul 2026
Happy Numbers (Long)
retrohun
104
42ms
13 Jul 2026
Happy Numbers (Long)
fuzzylojik-golf
14
23ms
13 Jul 2026
Happy Numbers (Long)
JOrE20
28
67ms
12 Jul 2026
Happy Numbers (Long)
JOrE20
81
249ms
12 Jul 2026
Happy Numbers (Long)
JOrE20
65
93ms
12 Jul 2026
Happy Numbers (Long)
edsrzf
🥇
53
940ms
11 Jul 2026
Happy Numbers (Long)
zzh1996
🥇
13
124ms
11 Jul 2026
Happy Numbers (Long)
sisyphus-ppcg
14
29ms
6 Jul 2026
Happy Numbers (Long)
CaedenHarper
590
1ms
1 Jul 2026
Happy Numbers (Long)
codereport
🥇
13
129ms
1 Jul 2026
Happy Numbers (Long)
ethanlally
106
458ms
30 Jun 2026
Happy Numbers (Long)
codereport
78
242ms
30 Jun 2026
Happy Numbers (Long)
kasarino
122
3ms
28 Jun 2026