Recent Solutions
Prev Hole
Play Hole
Next Hole
Achievements
Cheevos
Golfers
Solutions
All Holes
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
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
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
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
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
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
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
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Hole
All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
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
Hole
Golfer
Chars
Time
Submitted
N Queens
LostSyntax21
100
73ms
107 mins ago
N Queens
LostSyntax21
165
36ms
112 mins ago
N Queens
Yewzir
🥈
297
1,648ms
5 hours ago
N Queens
FlorianCassayre
341
433ms
21 hours ago
N Queens
edsrzf
💎
142
451ms
34 hours ago
N Queens
vang1ong7ang
🥈
145
133ms
35 hours ago
N Queens
retrohun
170
109ms
37 hours ago
N Queens
codereport
🥇
46
51ms
42 hours ago
N Queens
dokutan
797
131ms
46 hours ago
N Queens
blaztoma
80
125ms
2 days ago
N Queens
blaztoma
122
15ms
2 days ago
N Queens
retrohun
1,404
2ms
2 days ago
N Queens
dokutan
577
3ms
2 days ago
N Queens
Steffan153
🥈
87
1,345ms
3 days ago
N Queens
rucin93
🥈
106
4ms
3 days ago
N Queens
Steffan153
💎
65
134ms
3 days ago
N Queens
madeforlosers
🥉
2,080
5ms
3 days ago
N Queens
rucin93
🥈
94
148ms
3 days ago
N Queens
edsrzf
🥉
95
152ms
3 days ago
N Queens
edsrzf
🥇
90
14ms
4 days ago
N Queens
edsrzf
🥈
163
293ms
4 days ago
N Queens
rucin93
🥇
90
11ms
4 days ago
N Queens
edsrzf
💎
121
3ms
4 days ago
N Queens
edsrzf
152
374ms
4 days ago
N Queens
edsrzf
🥈
115
59ms
4 days ago
N Queens
edsrzf
111
19ms
4 days ago
N Queens
edsrzf
🥉
158
407ms
4 days ago
N Queens
edsrzf
🥉
151
467ms
4 days ago
N Queens
edsrzf
💎
104
5ms
4 days ago
N Queens
edsrzf
🥈
118
2ms
4 days ago
N Queens
edsrzf
💎
124
9ms
4 days ago
N Queens
FortuiteMan
274
257ms
4 days ago
N Queens
CaedenHarper
137
489ms
4 days ago
N Queens
CaedenHarper
140
14ms
4 days ago
N Queens
vang1ong7ang
1,248
41ms
4 days ago
N Queens
vang1ong7ang
131
19ms
6 days ago
N Queens
HumanoidCPU
1,253
4ms
7 days ago
N Queens
scpchicken
🥉
129
5ms
8 days ago
N Queens
MostParsingVex
💎
294
479ms
9 days ago
N Queens
scpchicken
96
12ms
12 days ago
N Queens
duckyluuk
🥈
187
260ms
14 days ago
N Queens
MeWhenI
1,454
1,701ms
15 days ago
N Queens
edsrzf
💎
151
1,638ms
15 days ago
N Queens
KatieLG
1,593
1,739ms
15 days ago
N Queens
MostParsingVex
🥉
409
1,665ms
15 days ago
N Queens
edsrzf
💎
156
908ms
16 days ago
N Queens
HumanoidCPU
1,455
1,740ms
16 days ago
N Queens
edsrzf
💎
262
1,719ms
16 days ago
N Queens
CaedenHarper
1,455
1,647ms
16 days ago
N Queens
dokutan
528
1,768ms
16 days ago
N Queens
kg583
🥈
169
639ms
16 days ago
N Queens
SuperFola
🥉
484
73ms
17 days ago
N Queens
emgordon154
🥈
312
1,255ms
19 days ago
N Queens
MostParsingVex
💎
514
3,926ms
20 days ago
N Queens
madex
146
42ms
21 days ago
N Queens
madex
147
11ms
21 days ago
N Queens
madex
176
2ms
21 days ago
N Queens
madex
162
43ms
21 days ago
N Queens
MostParsingVex
175
3ms
22 days ago
N Queens
albanian-laundromat
💎
147
204ms
24 days ago
N Queens
kg583
💎
132
49ms
24 days ago
N Queens
CaedenHarper
79
123ms
24 days ago
N Queens
retrohun
🥉
189
1,919ms
1 Apr 2026
N Queens
MostParsingVex
98
496ms
1 Apr 2026
N Queens
MostParsingVex
99
68ms
1 Apr 2026
N Queens
edsrzf
💎
178
28ms
1 Apr 2026
N Queens
prestosilver
182
159ms
31 Mar 2026
N Queens
MostParsingVex
🥈
184
277ms
31 Mar 2026
N Queens
MostParsingVex
🥉
187
185ms
31 Mar 2026
N Queens
MostParsingVex
🥉
202
44ms
30 Mar 2026
N Queens
aksyristos
147
42ms
27 Mar 2026
N Queens
MostParsingVex
138
4,377ms
25 Mar 2026
N Queens
MostParsingVex
192
3,476ms
24 Mar 2026
N Queens
dokutan
560
17ms
21 Mar 2026
N Queens
CaedenHarper
1,253
3ms
20 Mar 2026
N Queens
dokutan
871
263ms
20 Mar 2026
N Queens
MostParsingVex
255
104ms
20 Mar 2026
N Queens
MostParsingVex
271
75ms
20 Mar 2026
N Queens
anter69
131
1,367ms
19 Mar 2026
N Queens
anter69
96
15ms
19 Mar 2026
N Queens
edsrzf
🥈
120
150ms
18 Mar 2026
N Queens
anter69
81
50ms
18 Mar 2026
N Queens
albanian-laundromat
223
326ms
17 Mar 2026
N Queens
pardouin
71
50ms
17 Mar 2026
N Queens
edsrzf
💎
159
10ms
13 Mar 2026
N Queens
Apfelvater
182
39ms
10 Mar 2026
N Queens
BenMaydan
1,258
10ms
7 Mar 2026
N Queens
Natanaelel
80
127ms
4 Mar 2026
N Queens
edsrzf
🥉
67
136ms
4 Mar 2026
N Queens
edsrzf
💎
86
1,798ms
4 Mar 2026
N Queens
tomh1012
184
45ms
4 Mar 2026
N Queens
emgordon154
🥈
187
24ms
3 Mar 2026
N Queens
2bular
38
303ms
2 Mar 2026
N Queens
AstroOrbis
224
53ms
28 Feb 2026
N Queens
edsrzf
155
702ms
27 Feb 2026
N Queens
kasarino
1,414
397ms
27 Feb 2026
N Queens
kasarino
1,411
2ms
27 Feb 2026
N Queens
Steffan153
🥈
79
442ms
26 Feb 2026
N Queens
Lv0Sys
131
21ms
23 Feb 2026
N Queens
dokutan
🥉
480
9ms
23 Feb 2026