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Nim
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. Why not try and solve it ahead of time?
Recent Solutions
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Cheevos
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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Connect Four
Continued Fractions
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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
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
Nim
edsrzf
147
7ms
15 hours ago
Tutorial
Shanethegamer
74
11ms
6 days ago
Mahjong
scpchicken
🦄
990
33ms
13 days ago
Catalan’s Constant
edsrzf
🥇
99
44ms
14 days ago
γ
edsrzf
💎
103
354ms
15 days ago
Fibonacci
Maximizer02
73
7ms
18 days ago
Musical Chords
scpchicken
💎
296
10ms
19 days ago
Tutorial
LaconicLuna
188
12ms
20 days ago
CSS Colors
edsrzf
💎
691
193ms
22 days ago
Quine
CaedenHarper
66
6ms
26 days ago
Rijndael S-box
retrohun
814
6ms
31 May 2026
Recamán
retrohun
🥉
914
7ms
31 May 2026
Prime Numbers (Long)
retrohun
114
1,837ms
31 May 2026
Prime Numbers
retrohun
112
7ms
31 May 2026
Pernicious Numbers (Long)
retrohun
20,679
45ms
31 May 2026
Pernicious Numbers
retrohun
117
7ms
31 May 2026
Pascal’s Triangle
retrohun
823
7ms
31 May 2026
Odious Numbers (Long)
retrohun
1,962
10ms
31 May 2026
Odious Numbers
retrohun
90
6ms
31 May 2026
Number Spiral
retrohun
334
6ms
31 May 2026
Niven Numbers (Long)
retrohun
7,455
16ms
31 May 2026
Niven Numbers
retrohun
108
6ms
31 May 2026
ln 2
retrohun
1,011
6ms
31 May 2026
𝑒
retrohun
1,011
6ms
31 May 2026
√2
retrohun
1,011
6ms
31 May 2026
φ
retrohun
1,011
6ms
31 May 2026
λ
retrohun
🥈
1,011
6ms
31 May 2026
π
retrohun
1,011
6ms
31 May 2026
τ
retrohun
1,011
6ms
31 May 2026
γ
retrohun
🥈
1,011
6ms
31 May 2026
Foo Fizz Buzz Bar
retrohun
212
9ms
31 May 2026
Fizz Buzz
retrohun
166
6ms
31 May 2026
Fibonacci
retrohun
151
6ms
31 May 2026
Farey Sequence
retrohun
5,918
11ms
31 May 2026
Evil Numbers (Long)
retrohun
1,967
9ms
31 May 2026
Evil Numbers
retrohun
87
6ms
31 May 2026
Divisors
retrohun
1,380
6ms
31 May 2026
Diamonds
retrohun
1,295
7ms
31 May 2026
Cubes
retrohun
4,337
7ms
31 May 2026
Collatz
retrohun
3,243
13ms
31 May 2026
Christmas Trees
retrohun
669
6ms
31 May 2026
Catalan’s Constant
retrohun
1,014
6ms
31 May 2026
Catalan Numbers
retrohun
3,086
7ms
31 May 2026
ASCII Table
retrohun
323
6ms
31 May 2026
Ascending Primes
retrohun
529
7ms
31 May 2026
Arithmetic Numbers
retrohun
37,659
93ms
31 May 2026
Emirp Numbers (Long)
retrohun
1,173
7ms
31 May 2026
Emirp Numbers
retrohun
153
6ms
31 May 2026
Abundant Numbers (Long)
retrohun
4,161
119ms
31 May 2026
γ
Haksell
🥈
1,011
6ms
31 May 2026
Happy Numbers
Haksell
427
7ms
30 May 2026
Abundant Numbers
retrohun
759
7ms
30 May 2026
99 Bottles of Beer
retrohun
756
9ms
30 May 2026
24 Game
retrohun
31,499
46ms
30 May 2026
12 Days of Christmas
retrohun
3,950
9ms
30 May 2026
ln 2
Steffan153
🥇
40
22ms
26 May 2026
Intersection
edsrzf
💎
147
7ms
25 May 2026
PalindromemordnilaP
edsrzf
💎
99
8ms
25 May 2026
Abundant Numbers (Long)
Steffan153
🥇
71
44ms
25 May 2026
Tutorial
zgialor-lab
108
11ms
25 May 2026
Abundant Numbers (Long)
edsrzf
🥇
71
44ms
25 May 2026
Alphabetic Numbers
CaedenHarper
🥉
5,906
58ms
21 May 2026
Collatz
oaiqjuy
128
16ms
19 May 2026
Leap Years
Steffan153
💎
49
6ms
18 May 2026
Niven Numbers
scpchicken
🥇
48
6ms
15 May 2026
Alphabetic Numbers
edsrzf
💎
192
9ms
13 May 2026
Ulam Sequence
HumanoidCPU
1,602
10ms
12 May 2026
Tower of Hanoi
scpchicken
96
7ms
12 May 2026
Alphabetic Numbers
KatieLG
5,951
12ms
12 May 2026
Alphabetic Numbers
dokutan
🥈
5,257
11ms
12 May 2026
Niven Numbers (Long)
emgordon154
65
11ms
9 May 2026
Game of Life
AidanWalter
🥈
418
8ms
9 May 2026
Sudoku (Fill-in)
AidanWalter
🦄
6,065
35ms
9 May 2026
QR Decoder
AidanWalter
🦄
3,332
9ms
9 May 2026
Sudoku
AidanWalter
🦄
4,568
94ms
9 May 2026
12 Days of Christmas
Argeento
1,480
7ms
8 May 2026
Lucky Tickets
edsrzf
💎
128
9ms
7 May 2026
Roman to Arabic
Steffan153
🥇
117
20ms
7 May 2026
ln 2
Matter1024
52
10ms
5 May 2026
φ
Matter1024
48
7ms
5 May 2026
Niven Numbers (Long)
edsrzf
🥇
63
10ms
5 May 2026
γ
snoozingnewt
🥈
1,011
26ms
4 May 2026
𝑒
Matter1024
42
8ms
4 May 2026
√2
Matter1024
43
7ms
4 May 2026
τ
Matter1024
48
11ms
4 May 2026
π
Matter1024
38
11ms
4 May 2026
99 Bottles of Beer
madeforlosers
16,070
45ms
1 May 2026
24 Game
madeforlosers
31,499
46ms
1 May 2026
Tutorial
snoozingnewt
74
44ms
1 May 2026
Taxicab Numbers
dokutan
5,141
19ms
1 May 2026
Star Wars Opening Crawl
scpchicken
🦄
1,927
12ms
29 Apr 2026
Taxicab Numbers
edsrzf
💎
172
2,598ms
29 Apr 2026
Taxicab Numbers
CaedenHarper
🥉
5,139
20ms
29 Apr 2026
Taxicab Numbers
scpchicken
🥈
854
779ms
29 Apr 2026
Kolakoski Sequence
madeforlosers
2,013
7ms
24 Apr 2026
Dragon Curve
HumanoidCPU
10,792
10ms
24 Apr 2026
Pernicious Numbers (Long)
Steffan153
🥇
77
17ms
24 Apr 2026
Evil Numbers
madeforlosers
419
6ms
23 Apr 2026
τ
madeforlosers
1,016
25ms
23 Apr 2026
Cubes
madeforlosers
5,654
8ms
22 Apr 2026