The
Nim
hole will go live in approximately
8 hours
. Why not try and solve it ahead of time?
Recent Solutions
Achievements
Cheevos
Golfers
Solutions
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
All Languages
><>
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
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
Bytes
Chars
Scoring
Bytes
Chars
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
Chars
Time
Submitted
Gijswijt’s Sequence
duckyluuk
93
11ms
18 mins ago
Hexdump
JOrE20
155
11ms
85 mins ago
Diamonds
codereport
🥇
75
9ms
90 mins ago
Minesweeper
JOrE20
103
12ms
94 mins ago
Happy Numbers
JOrE20
65
11ms
105 mins ago
γ
JOrE20
229
13ms
2 hours ago
Gijswijt’s Sequence
JOrE20
96
510ms
2 hours ago
Collatz
codereport
🥈
55
22ms
3 hours ago
Medal Tally
codereport
121
9ms
6 hours ago
Morse Encoder
egu555
208
10ms
7 hours ago
Partition Numbers
CaedenHarper
58
19ms
7 hours ago
Sierpiński Triangle
CaedenHarper
95
9ms
8 hours ago
Medal Tally
Steffan153
🥉
107
10ms
13 hours ago
Nim
CaedenHarper
92
9ms
14 hours ago
Medal Tally
JayXon
🥉
107
11ms
14 hours ago
Catalan Numbers
JOrE20
42
8ms
18 hours ago
Foo Fizz Buzz Bar
JOrE20
🥇
79
10ms
26 hours ago
Ordinal Numbers
egu555
🥇
66
10ms
29 hours ago
Quine
kitotch
29
9ms
31 hours ago
CSS Colors
denkyuu1
3,280
9ms
33 hours ago
Ten-pin Bowling
codereport
137
11ms
35 hours ago
Fibonacci
kitotch
42
10ms
36 hours ago
Leap Years
kitotch
45
9ms
36 hours ago
Arithmetic Numbers
kitotch
81
75ms
37 hours ago
Ascending Primes
JOrE20
82
37ms
42 hours ago
Set
JOrE20
137
16ms
45 hours ago
Pernicious Numbers
Florian-Mt
113
9ms
2 days ago
Calendar
Florian-Mt
332
9ms
2 days ago
Gijswijt’s Sequence
DialFrost
71
1,592ms
2 days ago
Nim
lukegustafson
74
11ms
2 days ago
Nim
edsrzf
74
11ms
2 days ago
Nim
Steffan153
74
10ms
2 days ago
Odious Numbers (Long)
JOrE20
40
21ms
2 days ago
Odious Numbers
JOrE20
39
25ms
2 days ago
Evil Numbers
JOrE20
39
15ms
2 days ago
Evil Numbers (Long)
JOrE20
41
9ms
2 days ago
Nim
emplv
74
10ms
2 days ago
Nim
JOrE20
81
9ms
3 days ago
Nim
KatieLG
82
14ms
3 days ago
Poker
HumanoidCPU
356
10ms
3 days ago
Collatz
kitotch
56
10ms
3 days ago
Tic-tac-toe
CaedenHarper
79
10ms
3 days ago
Reverse Polish Notation
DialFrost
94
9ms
3 days ago
Musical Chords
emplv
🥈
101
11ms
3 days ago
Nim
DialFrost
80
8ms
3 days ago
Apéry’s Constant
JOrE20
71
13ms
4 days ago
Taxicab Numbers
emplv
71
1,720ms
4 days ago
Cubes
emplv
125
9ms
4 days ago
Ten-pin Bowling
emplv
💎
101
12ms
4 days ago
Morse Encoder
emplv
💎
112
9ms
4 days ago
Reverse Polish Notation
MiffOttah
122
9ms
4 days ago
Nim
rucin93
74
9ms
4 days ago
Look and Say
JOrE20
66
9ms
4 days ago
Reversi
JOrE20
114
15ms
5 days ago
Topological Sort
emplv
🥉
91
19ms
5 days ago
Trinomial Triangle
emplv
68
8ms
5 days ago
Fibonacci
dragonpeti53
57
8ms
5 days ago
Collatz
dragonpeti53
71
12ms
5 days ago
Pernicious Numbers
JOrE20
36
8ms
6 days ago
99 Bottles of Beer
egu555
240
10ms
6 days ago
12 Days of Christmas
egu555
498
9ms
6 days ago
ln 2
Steffan153
🥇
53
16ms
6 days ago
Apéry’s Constant
rucin93
71
11ms
6 days ago
Gray Code Decoder
JOrE20
51
32ms
6 days ago
Number Spiral
JOrE20
105
12ms
6 days ago
Diamonds
JOrE20
89
8ms
6 days ago
λ
JOrE20
156
26ms
6 days ago
Foo Fizz Buzz Bar
tomh1012
89
11ms
7 days ago
12 Days of Christmas
egol1
466
9ms
7 days ago
Transpose Sentence
egol1
160
11ms
7 days ago
Divisors
egol1
86
11ms
7 days ago
Gijswijt’s Sequence
egol1
216
13ms
7 days ago
Foo Fizz Buzz Bar
egol1
104
10ms
7 days ago
𝑒
egol1
74
9ms
7 days ago
Evil Numbers (Long)
egol1
73
10ms
7 days ago
ASCII Table
egol1
280
10ms
7 days ago
Evil Numbers
egol1
67
9ms
7 days ago
Niven Numbers
egol1
81
9ms
7 days ago
Happy Numbers
egol1
113
9ms
7 days ago
Divisors
kitotch
77
11ms
7 days ago
Chess960 Encoder
voytxt
109
11ms
7 days ago
Ten-pin Bowling
rucin93
🥉
103
9ms
7 days ago
Diamonds
egu555
103
11ms
8 days ago
π
Ultra814
79
11ms
8 days ago
Connect Four
JOrE20
146
24ms
8 days ago
Billiards
rucin93
💎
105
8ms
8 days ago
Leyland Numbers
albanian-laundromat
102
11ms
8 days ago
Fibonacci
albanian-laundromat
🥇
33
9ms
8 days ago
Fibonacci
JOrE20
🥇
33
10ms
9 days ago
Ten-pin Bowling
JayXon
🥈
102
11ms
9 days ago
Game of Life
blaztoma
107
14ms
9 days ago
Tongue-twisters
MrMullac
376
9ms
9 days ago
Dragon Curve
JOrE20
10,279
11ms
9 days ago
Lucky Tickets
JOrE20
113
11ms
10 days ago
√2
Europe2048
93
20ms
10 days ago
Hilbert Curve
madex
298
9ms
10 days ago
Tutorial
local-furry-robot
81
12ms
10 days ago
Intersection
Steffan153
🥇
90
12ms
10 days ago
Billiards
JOrE20
117
12ms
10 days ago
Levenshtein Distance
JOrE20
106
14ms
10 days ago