The
Nim
hole will go live in approximately
27 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
Fibonacci
Matter1024
85
288ms
9 days ago
Ulam Sequence
HumanoidCPU
1,140
485ms
12 May 2026
Ulam Sequence
Shanethegamer
1,140
471ms
11 May 2026
Dragon Curve
HumanoidCPU
10,320
464ms
23 Apr 2026
Dragon Curve
Shanethegamer
10,320
470ms
23 Apr 2026
Alphabetic Numbers
Shanethegamer
3,942
472ms
19 Apr 2026
Tower of Hanoi
scpchicken
99
462ms
19 Apr 2026
Fizz Buzz
madex
194
482ms
14 Mar 2026
Alphabetic Numbers
HumanoidCPU
3,942
469ms
6 Mar 2026
Fizz Buzz
dokutan
140
417ms
15 Feb 2026
Tutorial
FortuiteMan
267
738ms
3 Feb 2026
π
Andrey2001
1,050
716ms
25 Jan 2026
Tutorial
Mefred
267
842ms
23 Jan 2026
𝑒
JOrE20
1,087
395ms
5 Jan 2026
Tutorial
HumanoidCPU
132
891ms
1 Jan 2026
Smooth Numbers
GolfingSuccess
161
1,180ms
27 Dec 2025
Quine
dokutan
174
646ms
18 Dec 2025
Pernicious Numbers
snoozingnewt
85
396ms
8 Dec 2025
Tower of Hanoi
KatieLG
4,136
395ms
30 Nov 2025
𝑒
BREMAUCY
1,052
401ms
27 Nov 2025
Taxicab Numbers
HumanoidCPU
4,207
402ms
27 Nov 2025
Taxicab Numbers
Shanethegamer
4,207
398ms
26 Nov 2025
Fibonacci
Zach1031
96
398ms
15 Nov 2025
Kolakoski Sequence
HumanoidCPU
2,047
408ms
12 Nov 2025
Tower of Hanoi
HumanoidCPU
3,624
408ms
6 Nov 2025
Tower of Hanoi
GolfingSuccess
101
412ms
30 Oct 2025
Tower of Hanoi
Shanethegamer
3,624
386ms
30 Oct 2025
Quine
GolfingSuccess
95
258ms
18 Oct 2025
Emirp Numbers
GolfingSuccess
135
420ms
18 Oct 2025
Tutorial
snoozingnewt
132
783ms
18 Oct 2025
Tutorial
Babafaba
267
875ms
15 Oct 2025
Odious Numbers
Babafaba
90
443ms
11 Oct 2025
Quine
snoozingnewt
719
428ms
2 Oct 2025
Tutorial
retrohun
267
856ms
19 Sep 2025
Fizz Buzz
snoozingnewt
142
467ms
14 Sep 2025
Semiprime Numbers
Shanethegamer
135
409ms
27 Aug 2025
Prime Numbers
GolfingSuccess
93
408ms
25 Aug 2025
Prime Numbers (Long)
GolfingSuccess
100
446ms
25 Aug 2025
Farey Sequence
GolfingSuccess
116
427ms
25 Aug 2025
Arithmetic Numbers
GolfingSuccess
129
514ms
25 Aug 2025
Divisors
GolfingSuccess
109
415ms
24 Aug 2025
Levenshtein Distance
GolfingSuccess
300
531ms
24 Aug 2025
Evil Numbers (Long)
GolfingSuccess
81
418ms
23 Aug 2025
Odious Numbers (Long)
GolfingSuccess
80
415ms
23 Aug 2025
Evil Numbers
GolfingSuccess
79
480ms
23 Aug 2025
Odious Numbers
GolfingSuccess
79
429ms
23 Aug 2025
Niven Numbers
GolfingSuccess
85
447ms
23 Aug 2025
Collatz
GolfingSuccess
114
485ms
23 Aug 2025
Fibonacci
GolfingSuccess
79
609ms
23 Aug 2025
Tutorial
GolfingSuccess
112
712ms
23 Aug 2025
Quine
fuzzylojik-golf
137
423ms
23 Aug 2025
Tutorial
Vexxter9
267
657ms
21 Aug 2025
Highly Composite Numbers
HumanoidCPU
439
456ms
18 Aug 2025
Trinomial Triangle
HumanoidCPU
2,114
449ms
18 Aug 2025
Hilbert Curve
HumanoidCPU
5,165
416ms
18 Aug 2025
Abundant Numbers (Long)
HumanoidCPU
1,011
394ms
18 Aug 2025
Polyominoes
HumanoidCPU
3,611
360ms
18 Aug 2025
Recamán
HumanoidCPU
944
419ms
18 Aug 2025
Rule 110
HumanoidCPU
15,899
363ms
18 Aug 2025
Rijndael S-box
HumanoidCPU
815
400ms
18 Aug 2025
Pascal’s Triangle
HumanoidCPU
816
372ms
18 Aug 2025
Kaprekar Numbers
HumanoidCPU
487
385ms
18 Aug 2025
Happy Numbers
HumanoidCPU
154
408ms
18 Aug 2025
Happy Numbers (Long)
HumanoidCPU
599
360ms
18 Aug 2025
Emirp Numbers (Long)
HumanoidCPU
1,203
382ms
18 Aug 2025
Catalan Numbers
HumanoidCPU
2,919
524ms
18 Aug 2025
Tongue-twisters
HumanoidCPU
570
527ms
18 Aug 2025
Van Eck Sequence
HumanoidCPU
2,602
402ms
17 Aug 2025
Abundant Numbers
HumanoidCPU
210
415ms
16 Aug 2025
Look and Say
HumanoidCPU
1,326
409ms
15 Aug 2025
Partition Numbers
HumanoidCPU
694
418ms
15 Aug 2025
Farey Sequence
HumanoidCPU
4,401
446ms
15 Aug 2025
Diamonds
HumanoidCPU
1,150
444ms
15 Aug 2025
Niven Numbers
HumanoidCPU
138
429ms
14 Aug 2025
Lucky Numbers
HumanoidCPU
4,867
431ms
14 Aug 2025
Inventory Sequence
HumanoidCPU
2,670
438ms
14 Aug 2025
Gijswijt’s Sequence
HumanoidCPU
2,047
413ms
14 Aug 2025
Smith Numbers
HumanoidCPU
1,871
434ms
14 Aug 2025
Arithmetic Numbers
HumanoidCPU
37,689
449ms
14 Aug 2025
Odious Numbers (Long)
HumanoidCPU
1,992
444ms
14 Aug 2025
Evil Numbers (Long)
HumanoidCPU
1,997
406ms
14 Aug 2025
N Queens
HumanoidCPU
1,293
446ms
14 Aug 2025
Pernicious Numbers (Long)
HumanoidCPU
20,709
422ms
14 Aug 2025
Divisors
HumanoidCPU
1,213
438ms
14 Aug 2025
Foo Fizz Buzz Bar
HumanoidCPU
5,766
432ms
14 Aug 2025
Prime Numbers (Long)
HumanoidCPU
5,995
451ms
14 Aug 2025
Niven Numbers (Long)
HumanoidCPU
7,485
413ms
14 Aug 2025
Odious Numbers
HumanoidCPU
120
449ms
11 Aug 2025
Evil Numbers
HumanoidCPU
117
421ms
10 Aug 2025
Prime Numbers
HumanoidCPU
118
409ms
2 Aug 2025
Sierpiński Triangle
HumanoidCPU
601
397ms
2 Aug 2025
Sphenic Numbers
HumanoidCPU
8,907
413ms
29 Jul 2025
π
Ralac07
1,051
406ms
28 Jul 2025
Semiprime Numbers
HumanoidCPU
12,836
425ms
28 Jul 2025
Tutorial
Bpc-CPU
267
785ms
12 Jul 2025
Fibonacci
HumanoidCPU
181
424ms
30 Jun 2025
Mandelbrot
HumanoidCPU
10,051
451ms
30 Jun 2025
Quine
gigaprofisi
158
416ms
29 Jun 2025
Number Spiral
HumanoidCPU
347
436ms
27 Jun 2025
𝑒
gigaprofisi
1,052
420ms
20 Jun 2025