The
Connect Four
hole will go live in approximately
2 days
. Why not try and solve it ahead of time?
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brainfuck
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ln 2
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N Queens
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Ordinal Numbers
PalindromemordnilaP
Pangram Grep
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Poker
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Set
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Time Distance
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United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
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Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
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Numbrix
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p-adic Expansion
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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
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
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
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
Ulam Sequence
Hole
Golfer
Bytes
Time
Submitted
Leap Years
StirFrySauce
110
362ms
4 mins ago
Leap Years
bthalheim
81
9ms
5 hours ago
Leap Years
RealBen9
67
137ms
6 hours ago
Leap Years
RealBen9
43
757ms
6 hours ago
Leap Years
RealBen9
47
312ms
7 hours ago
Leap Years
RealBen9
61
3ms
7 hours ago
Leap Years
RealBen9
57
1,369ms
7 hours ago
Leap Years
RealBen9
73
464ms
7 hours ago
Leap Years
RealBen9
52
6ms
7 hours ago
Leap Years
RealBen9
61
105ms
7 hours ago
Leap Years
RealBen9
53
2ms
7 hours ago
Leap Years
RealBen9
43
8ms
7 hours ago
Leap Years
RealBen9
70
382ms
7 hours ago
Leap Years
RealBen9
66
2ms
7 hours ago
Leap Years
RealBen9
64
367ms
7 hours ago
Leap Years
RealBen9
81
63ms
7 hours ago
Leap Years
RealBen9
70
43ms
9 hours ago
Leap Years
JOrE20
22
21ms
9 hours ago
Leap Years
kasarino
247
14ms
11 hours ago
Leap Years
JOrE20
41
7ms
12 hours ago
Leap Years
darrenks
💎
16
21ms
28 hours ago
Leap Years
sean-niemann
🥉
18
28ms
45 hours ago
Leap Years
kasarino
69
40ms
2 days ago
Leap Years
denkyuu1
48
1,278ms
2 days ago
Leap Years
denkyuu1
326
1,698ms
2 days ago
Leap Years
denkyuu1
69
107ms
2 days ago
Leap Years
Languag3
46
18ms
2 days ago
Leap Years
MeWhenI
19
22ms
2 days ago
Leap Years
sean-niemann
55
2ms
2 days ago
Leap Years
sean-niemann
45
2ms
2 days ago
Leap Years
sean-niemann
38
6ms
2 days ago
Leap Years
denkyuu1
97
1,387ms
2 days ago
Leap Years
denkyuu1
102
4ms
2 days ago
Leap Years
denkyuu1
28
21ms
2 days ago
Leap Years
sean-niemann
🥇
49
125ms
3 days ago
Leap Years
aidend123456
198
13ms
3 days ago
Leap Years
denkyuu1
97
6ms
3 days ago
Leap Years
ovs-code
🥉
18
21ms
3 days ago
Leap Years
denkyuu1
43
4ms
3 days ago
Leap Years
lukegustafson
🥈
17
28ms
3 days ago
Leap Years
iczelia
🥇
49
125ms
3 days ago
Leap Years
iczelia
41
8ms
3 days ago
Leap Years
MiffOttah
76
431ms
4 days ago
Leap Years
weliveinhell
42
8ms
4 days ago
Leap Years
scpchicken
26
3ms
4 days ago
Leap Years
scpchicken
🥉
18
21ms
4 days ago
Leap Years
BlueNihilist
71
2ms
4 days ago
Leap Years
GrayJoKing
🥉
18
20ms
5 days ago
Leap Years
scpchicken
70
11ms
6 days ago
Leap Years
scpchicken
36
134ms
6 days ago
Leap Years
scpchicken
29
43ms
6 days ago
Leap Years
emgordon154
🥉
18
20ms
6 days ago
Leap Years
dokutan
22
21ms
7 days ago
Leap Years
plcc0
🥉
18
21ms
7 days ago
Leap Years
sisyphus-ppcg
🥉
18
22ms
7 days ago
Leap Years
CaedenHarper
730
25ms
7 days ago
Leap Years
Steffan153
🥉
18
20ms
7 days ago
Leap Years
codereport
🥉
18
22ms
8 days ago
Leap Years
prestosilver
43
37ms
8 days ago
Leap Years
vang1ong7ang
26
2ms
8 days ago
Leap Years
oaiqjuy
38
3ms
8 days ago
Leap Years
oaiqjuy
40
42ms
8 days ago
Leap Years
albanian-laundromat
130
1,712ms
9 days ago
Leap Years
snoozingnewt
48
85ms
9 days ago
Leap Years
MeWhenI
22
40ms
9 days ago
Leap Years
oaiqjuy
49
17ms
10 days ago
Leap Years
oaiqjuy
68
368ms
10 days ago
Leap Years
denkyuu1
58
94ms
10 days ago
Leap Years
Steffan153
🥇
33
39ms
10 days ago
Leap Years
O812120_jpmcai
39
2ms
10 days ago
Leap Years
Steffan153
44
10ms
10 days ago
Leap Years
Steffan153
🥇
44
2ms
10 days ago
Leap Years
Steffan153
🥇
42
364ms
10 days ago
Leap Years
Steffan153
🥇
53
642ms
10 days ago
Leap Years
Steffan153
🥇
72
58ms
10 days ago
Leap Years
JayXon
🥇
53
621ms
10 days ago
Leap Years
Steffan153
🥇
28
158ms
10 days ago
Leap Years
Steffan153
🥇
29
3ms
10 days ago
Leap Years
Steffan153
🥇
41
42ms
10 days ago
Leap Years
Steffan153
🥇
23
3ms
10 days ago
Leap Years
Steffan153
🥇
21
42ms
10 days ago
Leap Years
oaiqjuy
53
8ms
10 days ago
Leap Years
KasperKivimaeki
49
5ms
11 days ago
Leap Years
CaedenHarper
55
2ms
11 days ago
Leap Years
JayXon
🥇
40
64ms
11 days ago
Leap Years
Steffan153
💎
51
5ms
11 days ago
Leap Years
BrunoVisnadi
46
10ms
11 days ago
Leap Years
Steffan153
🥇
40
68ms
11 days ago
Leap Years
Steffan153
💎
51
7ms
11 days ago
Leap Years
Steffan153
🥇
45
40ms
11 days ago
Leap Years
Steffan153
🥇
52
10ms
11 days ago
Leap Years
Steffan153
🥇
49
130ms
11 days ago
Leap Years
Steffan153
46
2ms
11 days ago
Leap Years
Steffan153
🥈
65
2ms
11 days ago
Leap Years
Steffan153
🥇
39
128ms
11 days ago
Leap Years
Steffan153
🥇
60
29ms
11 days ago
Leap Years
Steffan153
🥇
45
6ms
11 days ago
Leap Years
Steffan153
🥇
44
77ms
11 days ago
Leap Years
Steffan153
🥇
42
122ms
11 days ago
Leap Years
Steffan153
🥇
81
274ms
11 days ago