The
Nim
hole will go live in approximately
3 days
. Why not try and solve it ahead of time?
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brainfuck
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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
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Happy Numbers
Happy Numbers (Long)
Hexdump
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Intersection
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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
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Morse Decoder
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Multitap Input
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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)
Taxicab Numbers
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
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
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
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Turtle
Tutorial
Ulam Sequence
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><>
ALGOL 68
ArkScript
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
F#
Factor
Forth
Fortran
Gleam
Go
GolfScript
Groovy
Haskell
Hexagony
iogii
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
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
Hole
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
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
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
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
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Ulam Sequence
Hole
Golfer
Bytes
Time
Submitted
Seven Segment
edsrzf
🥉
151
156ms
20 hours ago
Sierpiński Triangle
HPWiz
💎
71
135ms
2 days ago
γ
retrohun
1,015
143ms
3 days ago
Chess960 Decoder
scpchicken
314
175ms
3 days ago
Nim
scpchicken
183
178ms
4 days ago
Fibonacci
lemmaandrew
39
131ms
4 days ago
Odious Numbers
alomiF
57
144ms
4 days ago
Odious Numbers (Long)
alomiF
58
1,228ms
4 days ago
Leyland Numbers
alomiF
86
159ms
4 days ago
Star Wars Opening Crawl
scpchicken
🥉
350
216ms
7 days ago
Card Number Validation
scpchicken
🥈
131
181ms
7 days ago
Quine
scpchicken
🥇
35
130ms
8 days ago
Prime Numbers
scpchicken
🥇
43
143ms
8 days ago
Fibonacci
scpchicken
🥇
35
149ms
8 days ago
Catalan Numbers
scpchicken
🥇
49
168ms
8 days ago
Tongue-twisters
HPWiz
🥉
325
149ms
9 days ago
Partition Numbers
scpchicken
75
172ms
10 days ago
Jacobi Symbol
scpchicken
573
175ms
10 days ago
Levenshtein Distance
scpchicken
144
255ms
11 days ago
Kaprekar Numbers
scpchicken
🥈
148
443ms
11 days ago
Polyominoes
scpchicken
🥉
257
217ms
11 days ago
Catalan’s Constant
edsrzf
🥇
82
155ms
11 days ago
Proximity Grid
scpchicken
223
271ms
12 days ago
Arrows
ovs-code
🥉
176
220ms
12 days ago
Topological Sort
edsrzf
🥇
132
215ms
14 days ago
Arrows
edsrzf
🥈
172
198ms
15 days ago
Continued Fractions
scpchicken
217
184ms
16 days ago
Reverse Polish Notation
scpchicken
153
179ms
16 days ago
Ulam Sequence
Natanaelel
341
312ms
16 days ago
United States
scpchicken
309
185ms
16 days ago
Tutorial
LaconicLuna
187
173ms
18 days ago
Tower of Hanoi
edsrzf
🥈
77
140ms
18 days ago
Tongue-twisters
edsrzf
334
152ms
19 days ago
Lucky Tickets
GolfingSuccess
136
169ms
20 days ago
24 Game
scpchicken
🥈
186
4,289ms
20 days ago
Emojify
scpchicken
235
144ms
20 days ago
Gijswijt’s Sequence
scpchicken
125
2,706ms
20 days ago
ln 2
scpchicken
70
215ms
21 days ago
λ
scpchicken
235
215ms
21 days ago
Ascending Primes
edsrzf
85
1,574ms
22 days ago
Ascending Primes
Steffan153
86
1,549ms
22 days ago
N Queens
scpchicken
🥉
122
204ms
22 days ago
Arabic to Roman
scpchicken
190
435ms
24 days ago
Roman to Arabic
scpchicken
136
346ms
24 days ago
Connect Four
ovs-code
🥇
229
433ms
24 days ago
Minesweeper
scpchicken
🥉
173
376ms
24 days ago
Connect Four
edsrzf
🥇
229
340ms
25 days ago
ISBN
scpchicken
🥇
124
160ms
26 days ago
ln 2
retrohun
1,018
125ms
26 days ago
γ
Haksell
1,015
124ms
26 days ago
Catalan’s Constant
scpchicken
243
149ms
27 days ago
Factorial Factorisation
scpchicken
127
176ms
29 May 2026
Fibonacci
zgialor-lab
58
2,829ms
26 May 2026
Prime Numbers
zgialor-lab
54
151ms
26 May 2026
Fizz Buzz
zgialor-lab
96
133ms
26 May 2026
Leap Years
sean-niemann
🥇
49
142ms
26 May 2026
Tutorial
zgialor-lab
97
163ms
26 May 2026
Fibonacci
Andrey2001
40
130ms
26 May 2026
Seven Segment
scpchicken
168
129ms
26 May 2026
Leap Years
iczelia
🥇
49
141ms
26 May 2026
Fibonacci
Dominoscompute
51
152ms
26 May 2026
Zeckendorf Representation
scpchicken
155
185ms
25 May 2026
Lucky Numbers
Steffan153
75
362ms
24 May 2026
𝑒
Steffan153
59
143ms
24 May 2026
Musical Chords
edsrzf
161
188ms
24 May 2026
φ
scpchicken
76
139ms
23 May 2026
π
scpchicken
111
173ms
23 May 2026
τ
scpchicken
115
170ms
23 May 2026
𝑒
scpchicken
80
169ms
23 May 2026
Prime Numbers (Long)
Steffan153
🥇
51
347ms
23 May 2026
Fibonacci
Alex-Huggett
71
2,810ms
22 May 2026
Collatz
Alex-Huggett
113
200ms
22 May 2026
Abundant Numbers
sona-tau
72
130ms
22 May 2026
Abundant Numbers (Long)
sona-tau
73
177ms
22 May 2026
Alphabetic Numbers
CaedenHarper
4,907
146ms
21 May 2026
Vampire Numbers
edsrzf
125
649ms
20 May 2026
Fizz Buzz
RainVniaR
93
139ms
20 May 2026
Topological Sort
scpchicken
195
228ms
19 May 2026
Leyland Numbers
oaiqjuy
91
353ms
19 May 2026
Prime Numbers
madex
53
134ms
18 May 2026
Leap Years
Steffan153
🥇
49
143ms
18 May 2026
Alphabetic Numbers
ovs-code
💎
147
143ms
17 May 2026
PalindromemordnilaP
scpchicken
🥇
99
138ms
17 May 2026
Huffman Encoder
Natanaelel
269
135ms
17 May 2026
Niven Numbers
scpchicken
🥇
52
141ms
17 May 2026
Van Eck Sequence
scpchicken
70
179ms
15 May 2026
Tower of Hanoi
lynn
🥉
78
171ms
14 May 2026
Multitap Input
scpchicken
155
168ms
14 May 2026
Spelling Numbers
HPWiz
💎
325
291ms
13 May 2026
Pangram Grep
epic-programmer-guy
120
150ms
13 May 2026
Alphabetic Numbers
LostSyntax21
🥉
185
182ms
13 May 2026
Alphabetic Numbers
lynn
🥈
175
138ms
13 May 2026
Christmas Trees
HumanoidCPU
582
124ms
13 May 2026
Ulam Sequence
HumanoidCPU
1,130
142ms
13 May 2026
Quine
DanielVenable
62
135ms
12 May 2026
Alphabetic Numbers
KatieLG
4,907
138ms
12 May 2026
Spelling Numbers
lynn
🥈
332
267ms
12 May 2026
Alphabetic Numbers
dokutan
3,016
151ms
12 May 2026
Leap Years
denkyuu1
87
142ms
12 May 2026
Alphabetic Numbers
DanielVenable
366
173ms
12 May 2026