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hole will go live in approximately
22 hours
. Why not try and solve it ahead of time?
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brainfuck
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Factorial Factorisation
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Number Spiral
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Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Partition Numbers
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
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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
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Smith Numbers
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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
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γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
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Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
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Hexagonal Spiral
Highly Composite Numbers
Minesweeper
NFA Simulator
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p-adic Expansion
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D
Dart
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Forth
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Janet
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jq
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sed
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VimL
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05AB1E
ALGOL 68
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Erlang
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Hole
All
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
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
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Tower of Hanoi
edsrzf
65
8ms
7 hours ago
Tutorial
Openstreetmapler
146
4ms
8 hours ago
Tower of Hanoi
kg583
65
4ms
10 hours ago
Tower of Hanoi
Shanethegamer
89
4ms
20 hours ago
Ellipse Perimeters
Shanethegamer
105
4ms
30 hours ago
Minesweeper
edsrzf
111
18ms
3 days ago
Smith Numbers
kg583
🥉
144
295ms
3 days ago
Diamonds
kg583
111
7ms
3 days ago
Minesweeper
kg583
121
28ms
3 days ago
Minesweeper
Shanethegamer
123
20ms
3 days ago
Lucky Numbers
kg583
88
28ms
5 days ago
Tongue-twisters
dokutan
360
6ms
6 days ago
24 Game
dokutan
2,431
279ms
6 days ago
Odious Numbers
Babafaba
81
4ms
6 days ago
QR Decoder
kg583
🥈
224
4ms
6 days ago
QR Decoder
edsrzf
🥉
230
4ms
6 days ago
ASCII Table
edsrzf
113
4ms
9 days ago
24 Game
edsrzf
💎
247
4,199ms
9 days ago
Pernicious Numbers
snoozingnewt
56
4ms
10 days ago
Mahjong
edsrzf
💎
306
78ms
10 days ago
Billiards
kg583
🥉
171
6ms
11 days ago
Foo Fizz Buzz Bar
kg583
92
6ms
13 days ago
Divisors
kg583
58
5ms
13 days ago
Pernicious Numbers
kg583
40
3ms
14 days ago
Niven Numbers (Long)
kg583
🥇
53
17ms
14 days ago
Tutorial
luuumine
146
6ms
14 days ago
Christmas Trees
kg583
89
4ms
15 days ago
Tutorial
Babafaba
146
8ms
15 days ago
Happy Numbers (Long)
kg583
81
10ms
15 days ago
Scrambled Sort
kg583
🥉
128
16ms
15 days ago
Ascending Primes
kg583
🥇
98
3,437ms
15 days ago
Abundant Numbers
kg583
50
4ms
16 days ago
Odious Numbers
snoozingnewt
106
5ms
17 days ago
Fizz Buzz
h3ra993huskp
106
4ms
17 days ago
Fibonacci
snoozingnewt
97
205ms
20 days ago
Rijndael S-box
kg583
🥉
209
19ms
20 days ago
Rock-paper-scissors-Spock-lizard
kmathis22
447
4ms
22 days ago
Trinomial Triangle
dokutan
745
4ms
24 days ago
Recamán
kg583
85
7ms
25 days ago
𝑒
kg583
🥈
118
178ms
25 days ago
Fizz Buzz
kg583
64
4ms
26 days ago
Niven Numbers
albanian-laundromat
52
9ms
26 days ago
Pernicious Numbers
Yax42
54
4ms
26 days ago
Sudoku (Fill-in)
edsrzf
💎
236
1,218ms
27 days ago
Gray Code Decoder
kg583
58
12ms
2 Oct 2025
Zeckendorf Representation
kg583
🥈
131
5ms
2 Oct 2025
Pernicious Numbers (Long)
kg583
78
39ms
2 Oct 2025
ISBN
kg583
105
4ms
2 Oct 2025
Tongue-twisters
kg583
344
5ms
1 Oct 2025
Repeating Decimals
kg583
💎
229
9ms
1 Oct 2025
Trinomial Triangle
kg583
🥈
80
4ms
30 Sep 2025
Trinomial Triangle
CaedenHarper
2,074
3ms
30 Sep 2025
Van Eck Sequence
kg583
🥇
61
16ms
29 Sep 2025
Odious Numbers (Long)
kg583
60
8ms
29 Sep 2025
Evil Numbers (Long)
kg583
61
4ms
29 Sep 2025
Pascal’s Triangle
kg583
66
4ms
29 Sep 2025
Roman to Arabic
kg583
114
15ms
28 Sep 2025
Prime Numbers (Long)
snoozingnewt
72
4,946ms
28 Sep 2025
Prime Numbers
snoozingnewt
71
5ms
28 Sep 2025
Kaprekar Numbers
edsrzf
🥈
130
2,001ms
28 Sep 2025
Zodiac Signs
kg583
🥉
174
9ms
28 Sep 2025
Seven Segment
kg583
🥈
121
4ms
28 Sep 2025
PalindromemordnilaP
kg583
🥈
105
5ms
28 Sep 2025
Pangram Grep
kg583
81
13ms
27 Sep 2025
Day of Week
sean-niemann
🥇
131
7ms
27 Sep 2025
Tutorial
kg583
58
5ms
27 Sep 2025
Farey Sequence
kg583
91
4ms
27 Sep 2025
Fractions
kg583
🥉
99
4ms
27 Sep 2025
Arithmetic Numbers
kg583
🥇
66
4,362ms
26 Sep 2025
Intersection
kg583
139
5ms
26 Sep 2025
Forsyth–Edwards Notation
kg583
167
5ms
26 Sep 2025
Prime Numbers (Long)
kg583
52
428ms
26 Sep 2025
Ordinal Numbers
kg583
107
6ms
26 Sep 2025
Day of Week
kg583
🥇
131
7ms
26 Sep 2025
ASCII Table
kg583
122
4ms
26 Sep 2025