The
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hole will go live in approximately
2 days
. Why not try and solve it ahead of time?
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ALGOL 68
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C++
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Crystal
D
Dart
Elixir
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Forth
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Go
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iogii
J
Janet
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jq
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K
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Python
R
Raku
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Ruby
Rust
Scheme
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
Experimental Language
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
Vyxal
ZuzuScript
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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
Diamonds
scpchicken
1,121
199ms
16 Aug 2026
Diamonds
edsrzf
🥈
51
203ms
2 Aug 2026
Diamonds
nickweissert-star
71
233ms
24 Jun 2026
Diamonds
DialFrost
54
218ms
21 Jun 2026
Diamonds
aksyristos
336
217ms
28 Apr 2026
Diamonds
blaztoma
55
226ms
11 Apr 2026
Diamonds
PlatoHero
117
214ms
2 Apr 2026
Diamonds
madex
65
219ms
16 Mar 2026
Diamonds
IISResetMe
92
218ms
15 Jan 2026
Diamonds
bitsandbeyond
58
210ms
24 Oct 2025
Diamonds
CaedenHarper
1,104
210ms
16 Aug 2025
Diamonds
Shanethegamer
142
236ms
29 Oct 2024
Diamonds
krcs
86
224ms
15 Oct 2024
Diamonds
dokutan
346
208ms
6 Oct 2024
Diamonds
Mabeloid
1,104
195ms
17 Sep 2024
Diamonds
dcgjb
81
214ms
4 Jun 2024
Diamonds
HumanoidCPU
1,104
201ms
9 May 2024
Diamonds
JPRuskin
89
201ms
1 May 2024
Diamonds
corbob
1,104
178ms
27 Apr 2024
Diamonds
HumanEquivalentUnit
1,841
220ms
21 Apr 2024
Diamonds
PowershellKnut
181
213ms
17 Mar 2024
Diamonds
SirBogman
61
235ms
29 Jan 2024
Diamonds
janbehrens
120
238ms
3 Dec 2023
Diamonds
greig-maybery
303
230ms
24 Nov 2023
Diamonds
Msleizak
117
198ms
16 Nov 2023
Diamonds
Feniske
72
233ms
10 Nov 2023
Diamonds
snoozingnewt
251
242ms
21 Sep 2023
Diamonds
MeWhenI
79
243ms
28 Jan 2023
Diamonds
retrohun
2,259
192ms
27 Dec 2022
Diamonds
MaxCastella
118
245ms
14 Nov 2022
Diamonds
Arnaud-beep
121
243ms
18 Oct 2022
Diamonds
CarraUjilen
222
231ms
4 Aug 2022
Diamonds
juliansiebert
86
213ms
23 Jul 2022
Diamonds
KatieLG-Transpiler
1,197
186ms
24 Jun 2022
Diamonds
ehmiiz
1,104
203ms
19 Jun 2022
Diamonds
tofuweasel
93
216ms
9 Jun 2022
Diamonds
prplz
64
214ms
28 Dec 2021
Diamonds
nwellnhof
💎
50
216ms
2 Dec 2021
Diamonds
KatieLG
1,197
193ms
10 Oct 2021
Diamonds
rholliday
251
211ms
3 Mar 2021
Diamonds
TimCurwick
89
196ms
27 Jan 2021
Diamonds
bac0id
1,104
186ms
25 Jan 2021
Diamonds
gjh71
150
197ms
9 Jan 2021
Diamonds
AJLindner
119
232ms
5 Jan 2021
Diamonds
btnlq
🥈
51
196ms
27 Dec 2020
Diamonds
rvdnieuwendijk
75
218ms
14 Jul 2020
Diamonds
primo-ppcg
59
220ms
18 Jun 2020
Diamonds
bstrautin
59
203ms
17 Jun 2020
Diamonds
PalmEmanuel
1,876
218ms
15 Jun 2020
Diamonds
JoeBigToe
93
206ms
10 Jun 2020
Diamonds
lahell
81
220ms
7 Jun 2020
Diamonds
SteveL-MSFT
162
255ms
6 Jun 2020
Diamonds
krzydoug
148
223ms
5 Jun 2020
Diamonds
JamesWTruher
194
207ms
5 Jun 2020
Diamonds
PSGruss
124
216ms
5 Jun 2020
Diamonds
KevinMarquette
89
204ms
5 Jun 2020
Diamonds
thlac
1,108
194ms
3 Jun 2020
Diamonds
SeeminglyScience
1,104
204ms
3 Jun 2020