The
Nim
hole will go live in approximately
3 days
. Why not try and solve it ahead of time?
Recent Solutions
Achievements
Cheevos
Golfers
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All Holes
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
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
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ALGOL 68
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brainfuck
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Language
All
><>
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
γ
retrohun
1,002
5ms
4 days ago
τ
retrohun
1,002
5ms
4 days ago
Day of Week
DayDun
🥇
39
7ms
10 days ago
Day of Week
Steffan153
🥇
39
6ms
12 days ago
Day of Week
GolfingSuccess
🥇
39
7ms
12 days ago
Day of Week
edsrzf
🥇
39
6ms
12 days ago
Leap Years
DayDun
35
4ms
15 days ago
Emojify
denkyuu1
255
4ms
18 days ago
ROT13
denkyuu1
163
118ms
18 days ago
ASCII Table
denkyuu1
149
5ms
18 days ago
Number Spiral
denkyuu1
216
6ms
18 days ago
Collatz
denkyuu1
🥇
49
47ms
18 days ago
Pangram Grep
denkyuu1
74
10ms
18 days ago
Foo Fizz Buzz Bar
denkyuu1
🥇
69
5ms
18 days ago
Fizz Buzz
denkyuu1
🥇
43
4ms
18 days ago
ln 2
retrohun
1,004
4ms
27 days ago
Abundant Numbers (Long)
retrohun
965
4ms
27 days ago
Abundant Numbers
retrohun
164
4ms
27 days ago
γ
Haksell
1,001
4ms
27 days ago
99 Bottles of Beer
retrohun
12,184
4ms
27 days ago
12 Days of Christmas
retrohun
2,370
4ms
27 days ago
Rock-paper-scissors-Spock-lizard
denkyuu1
233
5ms
30 May 2026
Emirp Numbers
denkyuu1
74
4ms
30 May 2026
Prime Numbers
denkyuu1
37
4ms
30 May 2026
Happy Numbers
denkyuu1
🥇
54
4ms
30 May 2026
Ordinal Numbers
denkyuu1
74
8ms
29 May 2026
Leap Years
denkyuu1
43
4ms
26 May 2026
Topological Sort
edsrzf
💎
130
69ms
26 May 2026
Evil Numbers
retrohun
71
4ms
25 May 2026
Odious Numbers (Long)
HumanoidCPU
101
9ms
24 May 2026
Evil Numbers (Long)
HumanoidCPU
101
9ms
24 May 2026
Alphabetic Numbers
CaedenHarper
3,896
4ms
21 May 2026
Tic-tac-toe
Steffan153
🥇
60
75ms
21 May 2026
Collatz
oaiqjuy
86
58ms
19 May 2026
Leap Years
Steffan153
💎
29
4ms
18 May 2026
Collatz
scpchicken
🥇
49
47ms
17 May 2026
Calendar
Steffan153
💎
130
6ms
16 May 2026
Billiards
emgordon154
🥈
145
7ms
15 May 2026
Foo Fizz Buzz Bar
scpchicken
🥇
69
5ms
15 May 2026
Fizz Buzz
scpchicken
🥇
43
4ms
15 May 2026
Quine
scpchicken
🥇
19
4ms
15 May 2026
Vampire Numbers
emgordon154
💎
102
3,653ms
14 May 2026
Fibonacci
sisyphus-ppcg
🥇
32
4ms
14 May 2026
Fibonacci
scpchicken
38
4ms
14 May 2026
Fibonacci
xsot
🥇
32
4ms
14 May 2026
Pangram Grep
prestosilver
118
7ms
13 May 2026
Ulam Sequence
HumanoidCPU
1,094
4ms
12 May 2026
Alphabetic Numbers
KatieLG
🥉
3,043
45ms
12 May 2026
Alphabetic Numbers
dokutan
🥈
1,920
11ms
12 May 2026
Alphabetic Numbers
Steffan153
💎
116
9ms
12 May 2026
Ulam Sequence
Shanethegamer
1,092
4ms
11 May 2026
Tower of Hanoi
scpchicken
🥉
91
9ms
7 May 2026
Leap Years
Lydxn
🥈
31
4ms
7 May 2026
Ascending Primes
DayDun
🥇
73
14ms
7 May 2026
Odious Numbers (Long)
DayDun
🥇
38
4ms
7 May 2026
Gijswijt’s Sequence
DayDun
🥇
68
60ms
6 May 2026
Taxicab Numbers
DayDun
🥇
55
764ms
6 May 2026
Niven Numbers (Long)
HumanoidCPU
173
41ms
5 May 2026
Emojify
madex
206
4ms
3 May 2026
24 Game
madeforlosers
12,433
5ms
1 May 2026
Taxicab Numbers
dokutan
4,161
4ms
1 May 2026
Taxicab Numbers
Steffan153
🥉
56
796ms
30 Apr 2026
Gijswijt’s Sequence
Steffan153
🥇
68
61ms
30 Apr 2026
Taxicab Numbers
emgordon154
🥇
55
1,646ms
30 Apr 2026
Taxicab Numbers
madex
89
459ms
29 Apr 2026
Taxicab Numbers
CaedenHarper
4,161
7ms
29 Apr 2026
Dragon Curve
dokutan
15,453
8ms
28 Apr 2026
Leap Years
sisyphus-ppcg
39
4ms
28 Apr 2026
Odious Numbers
sisyphus-ppcg
41
5ms
27 Apr 2026
Evil Numbers
sisyphus-ppcg
40
4ms
27 Apr 2026
Intersection
DayDun
🥈
84
6ms
25 Apr 2026
ASCII Table
DayDun
96
4ms
24 Apr 2026
Kolakoski Sequence
madeforlosers
2,001
4ms
24 Apr 2026
Diamonds
DayDun
🥇
57
4ms
24 Apr 2026
Ordinal Numbers
Steffan153
🥈
59
8ms
24 Apr 2026
Pascal’s Triangle
DayDun
🥇
46
4ms
23 Apr 2026
Dragon Curve
HumanoidCPU
10,274
3ms
23 Apr 2026
ROT13
DayDun
🥇
51
9ms
23 Apr 2026
Pernicious Numbers (Long)
Steffan153
🥈
49
4,302ms
23 Apr 2026
Dragon Curve
Shanethegamer
10,274
3ms
23 Apr 2026
Evil Numbers
madeforlosers
71
4ms
23 Apr 2026
Fizz Buzz
mrxz
100
4ms
23 Apr 2026
Cubes
madeforlosers
4,102
4ms
22 Apr 2026
Odious Numbers
madeforlosers
74
4ms
22 Apr 2026
Evil Numbers (Long)
madeforlosers
1,951
4ms
22 Apr 2026
Farey Sequence
madeforlosers
4,355
5ms
22 Apr 2026
Odious Numbers (Long)
madeforlosers
1,946
4ms
22 Apr 2026
Abundant Numbers
madeforlosers
164
4ms
22 Apr 2026
Abundant Numbers (Long)
madeforlosers
965
4ms
22 Apr 2026
Prime Numbers
madeforlosers
72
5ms
22 Apr 2026
Look and Say
madeforlosers
1,280
4ms
22 Apr 2026
Prime Numbers (Long)
madeforlosers
5,949
4ms
22 Apr 2026
Divisors
madeforlosers
1,167
3ms
22 Apr 2026
Foo Fizz Buzz Bar
madeforlosers
5,720
4ms
22 Apr 2026
12 Days of Christmas
madeforlosers
2,370
4ms
22 Apr 2026
Niven Numbers (Long)
madeforlosers
7,439
4ms
22 Apr 2026
Tongue-twisters
madeforlosers
524
3ms
22 Apr 2026
Fizz Buzz
madeforlosers
414
4ms
22 Apr 2026
ISBN
DayDun
🥉
65
5ms
22 Apr 2026
Continued Fractions
DayDun
🥇
104
7ms
21 Apr 2026