The
Nim
hole will go live in approximately
12 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
Bytes
Time
Submitted
γ
retrohun
1,011
2ms
6 days ago
τ
retrohun
1,011
2ms
6 days ago
Fibonacci
albanian-laundromat
🥇
40
2ms
7 days ago
Fizz Buzz
albanian-laundromat
57
2ms
11 days ago
Arithmetic Numbers
KrausRaus
92
1,314ms
14 days ago
Roman to Arabic
sean-niemann
🥇
102
31ms
17 days ago
Tutorial
LaconicLuna
135
2ms
21 days ago
Poker
albanian-laundromat
453
5ms
22 days ago
Poker
jared-hughes
522
3ms
23 days ago
Leap Years
RealBen9
45
2ms
26 days ago
Poker
KasperKivimaeki
1,052
3ms
26 days ago
Poker
Steffan153
💎
260
3ms
27 days ago
π
Openstreetmapler
1,011
1ms
27 days ago
Connect Four
Steffan153
🦄
162
16ms
2 Jun 2026
Foo Fizz Buzz Bar
Orsailius
92
2ms
1 Jun 2026
Star Wars Opening Crawl
albanian-laundromat
💎
287
3ms
1 Jun 2026
Intersection
Orsailius
196
3ms
1 Jun 2026
Poker
GolfingSuccess
1,363
3ms
1 Jun 2026
Poker
CaedenHarper
604
2ms
1 Jun 2026
ln 2
retrohun
1,011
1ms
31 May 2026
γ
Haksell
1,011
1ms
31 May 2026
Happy Numbers
Haksell
146
1ms
30 May 2026
Alphabetic Numbers
edsrzf
🥈
188
3ms
30 May 2026
Alphabetic Numbers
rucin93
💎
156
34ms
30 May 2026
PalindromemordnilaP
sean-niemann
💎
85
2ms
30 May 2026
Factorial Factorisation
sean-niemann
🥈
102
8ms
29 May 2026
Poker
Yewzir
675
3ms
28 May 2026
Taxicab Numbers
sean-niemann
💎
131
1,193ms
28 May 2026
Multitap Input
Yewzir
🥉
193
2ms
27 May 2026
Leap Years
sean-niemann
38
2ms
27 May 2026
12 Days of Christmas
Orsailius
506
2ms
26 May 2026
PalindromemordnilaP
JayXon
🥈
86
3ms
25 May 2026
PalindromemordnilaP
edsrzf
🥈
86
4ms
25 May 2026
Fizz Buzz
Orsailius
61
2ms
24 May 2026
Fibonacci
Orsailius
42
2ms
24 May 2026
Taxicab Numbers
scpchicken
🥈
184
42ms
23 May 2026
Alphabetic Numbers
CaedenHarper
4,903
2ms
21 May 2026
Continued Fractions
albanian-laundromat
127
2ms
21 May 2026
Star Wars GPT
albanian-laundromat
🥈
182
10ms
21 May 2026
Divisors
Orsailius
63
2ms
19 May 2026
γ
oaiqjuy
1,012
2ms
19 May 2026
Hilbert Curve
rucin93
🥈
225
3ms
18 May 2026
Leap Years
Steffan153
🥇
37
1ms
18 May 2026
Sudoku (Fill-in)
albanian-laundromat
💎
222
48ms
18 May 2026
Polyominoes
rucin93
🥈
265
4ms
17 May 2026
Prime Numbers (Long)
Orsailius
59
1,031ms
17 May 2026
Niven Numbers
scpchicken
🥇
38
1ms
15 May 2026
Prime Numbers
Orsailius
55
2ms
13 May 2026
Ulam Sequence
HumanoidCPU
1,350
1ms
12 May 2026
Alphabetic Numbers
KatieLG
3,168
2ms
12 May 2026
Leap Years
denkyuu1
50
1ms
12 May 2026
99 Bottles of Beer
Orsailius
271
2ms
12 May 2026
Alphabetic Numbers
dokutan
🥉
2,704
3ms
12 May 2026
Sphenic Numbers
albanian-laundromat
83
1,225ms
12 May 2026
Ulam Sequence
rucin93
87
6ms
11 May 2026
Ulam Sequence
Shanethegamer
1,350
1ms
11 May 2026
Look and Say
Steffan153
🥇
99
3ms
8 May 2026
Fibonacci
Herbert00709
🥇
40
2ms
8 May 2026
Fibonacci
roupiq
🥇
40
1ms
8 May 2026
Taxicab Numbers
dokutan
3,512
3ms
8 May 2026
Leap Years
Lydxn
🥇
37
2ms
7 May 2026
Niven Numbers
Lydxn
🥇
38
2ms
7 May 2026
Niven Numbers (Long)
edsrzf
🥇
54
4ms
5 May 2026
Musical Chords
Steffan153
💎
151
118ms
5 May 2026
Roman to Arabic
Steffan153
🥇
102
31ms
5 May 2026
Arabic to Roman
Steffan153
🥈
129
14ms
5 May 2026
Game of Life
rucin93
116
8ms
3 May 2026
Maze
Shanethegamer
🥇
137
15ms
2 May 2026
Nim
albanian-laundromat
112
3ms
2 May 2026
Ordinal Numbers
Steffan153
🥈
76
4ms
1 May 2026
Jacobi Symbol
sean-niemann
🥈
122
2ms
1 May 2026
Arrows
epic-programmer-guy
533
2ms
1 May 2026
99 Bottles of Beer
madeforlosers
12,191
1ms
1 May 2026
24 Game
madeforlosers
13,801
2ms
1 May 2026
Arrows
Openstreetmapler
220
5ms
1 May 2026
Zodiac Signs
sean-niemann
💎
132
4ms
1 May 2026
Rock-paper-scissors-Spock-lizard
sean-niemann
💎
317
2ms
1 May 2026
Forsyth–Edwards Notation
sean-niemann
💎
147
2ms
1 May 2026
Day of Week
sean-niemann
🥉
160
5ms
1 May 2026
Billiards
sean-niemann
💎
155
4ms
1 May 2026
Arabic to Roman
sean-niemann
💎
128
16ms
1 May 2026
Christmas Trees
Yewzir
74
2ms
30 Apr 2026
Taxicab Numbers
CaedenHarper
4,652
2ms
29 Apr 2026
Taxicab Numbers
rucin93
🥉
195
31ms
28 Apr 2026
Tower of Hanoi
scpchicken
🥇
51
3ms
28 Apr 2026
N Queens
rucin93
🥈
106
4ms
27 Apr 2026
Arrows
Natanaelel
286
3ms
27 Apr 2026
Arrows
roelderickx
296
3ms
27 Apr 2026
Arrows
Matter1024
216
2ms
27 Apr 2026
N Queens
edsrzf
💎
104
4ms
27 Apr 2026
Ordinal Numbers
MeWhenI
🥉
78
4ms
26 Apr 2026
Catalan Numbers
Steffan153
💎
153
5ms
25 Apr 2026
Kolakoski Sequence
madeforlosers
2,008
2ms
24 Apr 2026
Catalan Numbers
rucin93
🥈
190
363ms
24 Apr 2026
Happy Numbers
sean-niemann
🥇
72
2ms
24 Apr 2026
Trinomial Triangle
sean-niemann
85
2ms
24 Apr 2026
Dragon Curve
HumanoidCPU
10,535
1ms
24 Apr 2026
Pernicious Numbers (Long)
Steffan153
🥇
50
7ms
23 Apr 2026
Pernicious Numbers (Long)
rucin93
🥇
50
6ms
23 Apr 2026
Dragon Curve
Shanethegamer
10,535
2ms
23 Apr 2026