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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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
Tutorial
KasperKivimaeki
72
6ms
10 hours ago
Nim
KasperKivimaeki
193
5ms
11 hours ago
Nim
targrik
97
6ms
12 hours ago
γ
retrohun
1,010
6ms
3 days ago
Proximity Grid
Steffan153
💎
110
6ms
3 days ago
Reverse Polish Notation
targrik
104
5ms
4 days ago
Quine
targrik
🥇
36
5ms
4 days ago
Evil Numbers (Long)
sisyphus-ppcg
🥉
43
6ms
5 days ago
Odious Numbers (Long)
sisyphus-ppcg
🥈
39
6ms
5 days ago
Odious Numbers
sisyphus-ppcg
🥈
38
5ms
5 days ago
Diamonds
DialFrost
91
5ms
5 days ago
Fibonacci
albanian-laundromat
45
5ms
5 days ago
Day of Week
Yewzir
59
10ms
7 days ago
Day of Week
TheLastZombie
65
6ms
7 days ago
Star Wars Opening Crawl
targrik
437
6ms
8 days ago
Evil Numbers (Long)
arjunarya1
79
6ms
8 days ago
Evil Numbers (Long)
h3ra993huskp
66
5ms
8 days ago
Fibonacci
targrik
🥇
34
5ms
8 days ago
Evil Numbers (Long)
jared-hughes
1,955
5ms
9 days ago
Diamonds
targrik
73
5ms
9 days ago
Evil Numbers (Long)
egol1
63
5ms
10 days ago
Evil Numbers (Long)
albanian-laundromat
48
5ms
10 days ago
Fizz Buzz
MiffOttah
80
5ms
10 days ago
ASCII Table
DialFrost
109
5ms
10 days ago
Kolakoski Sequence
JOrE20
45
6ms
10 days ago
Sphenic Numbers
JOrE20
95
899ms
10 days ago
Day of Week
emplv
51
7ms
10 days ago
Evil Numbers (Long)
prestosilver
66
6ms
10 days ago
Odious Numbers (Long)
prestosilver
57
5ms
10 days ago
PalindromemordnilaP
targrik
🥈
71
5ms
10 days ago
Evil Numbers (Long)
madex
57
6ms
10 days ago
CSS Colors
msbranicky
2,883
5ms
11 days ago
Evil Numbers (Long)
MiffOttah
88
5ms
11 days ago
Evil Numbers (Long)
emgordon154
48
5ms
11 days ago
Evil Numbers (Long)
AdrienHache
1,956
7ms
11 days ago
Evil Numbers (Long)
vgamula
77
5ms
11 days ago
Evil Numbers (Long)
aksyristos
65
6ms
11 days ago
Evil Numbers (Long)
CornerMercury
55
6ms
11 days ago
Calendar
targrik
🥈
171
9ms
11 days ago
Evil Numbers (Long)
Matter1024
53
5ms
11 days ago
Mandelbrot
targrik
140
3,282ms
11 days ago
Evil Numbers (Long)
JOrE20
90
6ms
11 days ago
Evil Numbers (Long)
bitsandbeyond
65
5ms
11 days ago
Evil Numbers (Long)
denkyuu1
62
5ms
11 days ago
Evil Numbers (Long)
namelessiw
53
5ms
11 days ago
Evil Numbers (Long)
BREMAUCY
67
6ms
11 days ago
Evil Numbers
BREMAUCY
69
7ms
11 days ago
Evil Numbers (Long)
Natanaelel
81
6ms
11 days ago
Evil Numbers (Long)
blaztoma
47
6ms
11 days ago
Evil Numbers (Long)
tomh1012
68
6ms
11 days ago
Evil Numbers (Long)
scpchicken
57
5ms
12 days ago
Tic-tac-toe
edsrzf
94
7ms
14 days ago
N Queens
emplv
🥉
134
33ms
15 days ago
CSS Colors
edsrzf
🥈
699
7ms
18 days ago
N Queens
targrik
168
49ms
22 days ago
Calendar
edsrzf
💎
170
21ms
23 days ago
𝑒
jatloe
1,008
5ms
24 days ago
Vampire Numbers
targrik
191
981ms
24 days ago
Sudoku (Fill-in)
targrik
🥉
222
4,621ms
24 days ago
Kaprekar Numbers
sisyphus-ppcg
73
4,177ms
25 days ago
PalindromemordnilaP
Steffan153
🥉
72
5ms
25 days ago
Multitap Input
xsot
💎
103
10ms
26 days ago
ln 2
retrohun
1,008
4ms
26 days ago
γ
Haksell
1,008
5ms
26 days ago
Connect Four
madex
💎
223
29ms
26 days ago
Trinomial Triangle
xsot
🥇
63
6ms
26 days ago
Reverse Polish Notation
xsot
💎
97
5ms
27 days ago
Kolakoski Sequence
scpchicken
46
6ms
27 days ago
24 Game
DialFrost
313
873ms
27 days ago
99 Bottles of Beer
Steffan153
203
8ms
27 days ago
Connect Four
scpchicken
🥈
261
12ms
27 days ago
Arrows
edsrzf
🥈
89
6ms
30 May 2026
Leap Years
RealBen9
52
5ms
29 May 2026
𝑒
targrik
76
3,071ms
29 May 2026
12 Days of Christmas
sisyphus-ppcg
447
6ms
27 May 2026
Fibonacci
Andrey2001
47
7ms
26 May 2026
τ
emplv
106
3,614ms
26 May 2026
Arithmetic Numbers
targrik
73
461ms
26 May 2026
π
emplv
105
3,599ms
26 May 2026
Smith Numbers
targrik
134
290ms
26 May 2026
Sudoku (Fill-in)
emplv
💎
176
1,910ms
26 May 2026
Topological Sort
edsrzf
🥈
120
7ms
26 May 2026
Mandelbrot
emplv
132
479ms
25 May 2026
Kaprekar Numbers
emplv
🥉
65
1,334ms
25 May 2026
Continued Fractions
emplv
120
9ms
25 May 2026
Cubes
emplv
🥈
233
7ms
25 May 2026
Taxicab Numbers
xsot
🥇
87
258ms
25 May 2026
Fizz Buzz
aksyristos
🥇
56
6ms
24 May 2026
Diamonds
xsot
🥇
67
6ms
24 May 2026
ln 2
targrik
303
4,842ms
24 May 2026
Time Distance
targrik
275
9ms
22 May 2026
Alphabetic Numbers
CaedenHarper
3,900
5ms
21 May 2026
Sudoku
targrik
🥉
582
39ms
21 May 2026
Sierpiński Triangle
targrik
75
6ms
21 May 2026
Van Eck Sequence
targrik
46
6ms
21 May 2026
Tower of Hanoi
xsot
🥇
52
7ms
19 May 2026
Levenshtein Distance
oaiqjuy
63
7ms
19 May 2026
Billiards
targrik
🥉
155
21ms
19 May 2026
Polyominoes
targrik
🥉
310
16ms
19 May 2026
Factorial Factorisation
sisyphus-ppcg
107
14ms
19 May 2026