The
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hole will go live in approximately
33 hours
. Why not try and solve it ahead of time?
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𝑒
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Hare
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Hush
Hy
Knight
Lily
Luau
Odin
Picat
Qore
Racket
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Rexx
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Stax
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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
Arithmetic Numbers
Arrows
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Billiards
brainfuck
Calendar
Card Number Validation
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Catalan’s Constant
Chess Move Validation
Christmas Trees
Collatz
Connect Four
Continued Fractions
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
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Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
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Fibonacci
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Foo Fizz Buzz Bar
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Fractions
Game of Life
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Gray Code Encoder
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Happy Numbers (Long)
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Intersection
Inventory Sequence
ISBN
Jacobi Symbol
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Kolakoski Sequence
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ln 2
Look and Say
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Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Minesweeper
Morse Decoder
Morse Encoder
Multitap Input
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N Queens
Nim
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Partition Numbers
Pascal’s Triangle
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Pernicious Numbers (Long)
Poker
Polyominoes
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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
Ulam Sequence
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
Langton’s Ant
Lyndon Factorization
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Thue–Morse Constant
Turtle
Tutorial
Yellowstone Permutation
Hole
Golfer
Chars
Time
Submitted
Partition Numbers
Steffan153
🥇
68
124ms
40 hours ago
Snake
madex
324
749ms
41 hours ago
λ
JayXon
💎
106
711ms
3 days ago
Leap Years
albanian-laundromat
53
77ms
4 days ago
Arabic to Roman
arcpolaris
🥉
187
426ms
5 days ago
Fractions
arcpolaris
116
77ms
5 days ago
Forsyth–Edwards Notation
Steffan153
🥇
89
94ms
6 days ago
Topological Sort
arcpolaris
171
192ms
6 days ago
24 Game
arcpolaris
444
1,791ms
7 days ago
Quine
zzh1996
💎
42
74ms
9 days ago
12 Days of Christmas
zzh1996
🥉
188
265ms
10 days ago
Fibonacci
bpharaldsson
59
89ms
11 days ago
Catalan Numbers
error256
🥇
44
83ms
11 days ago
Game of Life
edsrzf
🥇
88
149ms
12 days ago
Game of Life
Steffan153
🥇
88
131ms
12 days ago
Van Eck Sequence
error256
66
94ms
13 days ago
99 Bottles of Beer
emgordon154
🥇
132
98ms
13 days ago
Pangram Grep
christos-cantina-security
120
103ms
14 days ago
Game of Life
christos-cantina-security
325
227ms
14 days ago
Pernicious Numbers
albanian-laundromat
54
75ms
14 days ago
12 Days of Christmas
error256
💎
166
76ms
14 days ago
Tongue-twisters
error256
💎
122
75ms
14 days ago
Fibonacci
christos-cantina-security
💎
44
77ms
14 days ago
Pernicious Numbers
JOrE20
55
95ms
14 days ago
Poker
arcpolaris
🥉
455
141ms
16 days ago
Fibonacci
JOrE20
57
105ms
17 days ago
Fibonacci
GolfingSuccess
48
84ms
18 days ago
Calendar
arcpolaris
🥉
280
186ms
23 days ago
Chess Move Validation
edsrzf
💎
82
239ms
23 days ago
Chess Move Validation
Steffan153
🥈
104
197ms
23 days ago
φ
bitsandbeyond
59
130ms
23 days ago
Lucky Tickets
GolfingSuccess
121
98ms
25 days ago
Morse Decoder
error256
🥉
140
111ms
25 days ago
Billiards
arcpolaris
189
133ms
27 days ago
Day of Week
albanian-laundromat
🥇
67
190ms
1 Sep 2026
Chess Move Validation
albanian-laundromat
🥉
164
236ms
1 Sep 2026
Tutorial
zzh1996
69
147ms
31 Aug 2026
Ordinal Numbers
arcpolaris
123
189ms
29 Aug 2026
Ten-pin Bowling
edsrzf
🥉
142
130ms
28 Aug 2026
τ
Steffan153
🥇
62
105ms
27 Aug 2026
π
Steffan153
🥇
60
108ms
27 Aug 2026
Quine
arcpolaris
58
84ms
27 Aug 2026
Abundant Numbers
edsrzf
🥉
60
90ms
27 Aug 2026
Thue–Morse Constant
HumanoidCPU
521
76ms
25 Aug 2026
Fibonacci
Europe2048
85
168ms
24 Aug 2026
Collatz
arcpolaris
86
572ms
23 Aug 2026
Musical Chords
edsrzf
💎
92
127ms
22 Aug 2026
Look and Say
arcpolaris
97
93ms
22 Aug 2026
Look and Say
JayXon
🥇
74
91ms
22 Aug 2026
Musical Chords
JayXon
🥈
94
111ms
22 Aug 2026
ISBN
JayXon
🥇
74
90ms
22 Aug 2026
DFA Simulator
arcpolaris
334
155ms
21 Aug 2026
Tutorial
quasar098
137
105ms
20 Aug 2026
Catalan’s Constant
Steffan153
🥇
68
109ms
20 Aug 2026
Partition Numbers
HumanoidCPU
343
81ms
19 Aug 2026
Christmas Trees
HumanoidCPU
422
80ms
19 Aug 2026
12 Days of Christmas
HumanoidCPU
1,229
75ms
19 Aug 2026
Star Wars GPT
HumanoidCPU
260
160ms
19 Aug 2026
99 Bottles of Beer
HumanoidCPU
6,192
74ms
19 Aug 2026
Rijndael S-box
HumanoidCPU
449
76ms
19 Aug 2026
Sierpiński Triangle
HumanoidCPU
122
128ms
19 Aug 2026
ASCII Table
HumanoidCPU
186
75ms
19 Aug 2026
Trinomial Triangle
HumanoidCPU
1,053
75ms
19 Aug 2026
Alphabetic Numbers
HumanoidCPU
1,967
83ms
19 Aug 2026
Taxicab Numbers
HumanoidCPU
134
527ms
19 Aug 2026
Tongue-twisters
HumanoidCPU
286
67ms
19 Aug 2026
Fibonacci
HumanoidCPU
69
77ms
19 Aug 2026
π
HumanoidCPU
521
77ms
19 Aug 2026
τ
HumanoidCPU
521
71ms
19 Aug 2026
Polyominoes
HumanoidCPU
1,802
73ms
19 Aug 2026
Tower of Hanoi
HumanoidCPU
95
113ms
19 Aug 2026
Odd Polyomino Tiling
HumanoidCPU
15,335
78ms
19 Aug 2026
Hexagonal Spiral
HumanoidCPU
587
78ms
19 Aug 2026
Apéry’s Constant
HumanoidCPU
521
72ms
19 Aug 2026
Gray Code Encoder
HumanoidCPU
81
383ms
19 Aug 2026
Fizz Buzz
HumanoidCPU
94
84ms
18 Aug 2026
Alphabetic Numbers
arcpolaris
397
130ms
18 Aug 2026
Kaprekar Numbers
HumanoidCPU
240
72ms
18 Aug 2026
Highly Composite Numbers
HumanoidCPU
216
77ms
18 Aug 2026
Spelling Numbers
arcpolaris
496
202ms
17 Aug 2026
Tutorial
HumanoidCPU
64
110ms
17 Aug 2026
Foo Fizz Buzz Bar
scpchicken
5,736
75ms
16 Aug 2026
Gijswijt’s Sequence
scpchicken
2,017
75ms
16 Aug 2026
Emojify
edsrzf
120
113ms
16 Aug 2026
Ulam Sequence
dokutan
372
78ms
14 Aug 2026
Binary Lambda Calculus
bitsandbeyond
437
95ms
14 Aug 2026
Tongue-twisters
zzh1996
223
78ms
13 Aug 2026
Gray Code Encoder
arcpolaris
90
412ms
11 Aug 2026
Billiards
edsrzf
🥇
104
116ms
11 Aug 2026
Billiards
Steffan153
🥇
104
146ms
11 Aug 2026
Evil Numbers (Long)
scpchicken
378
143ms
10 Aug 2026
Emojify
scpchicken
614
165ms
10 Aug 2026
Reverse Polish Notation
arcpolaris
149
95ms
10 Aug 2026
Emirp Numbers (Long)
scpchicken
842
150ms
10 Aug 2026
Emirp Numbers
scpchicken
743
127ms
10 Aug 2026
Divisors
scpchicken
231
125ms
10 Aug 2026
Diamonds
scpchicken
715
124ms
10 Aug 2026
DFA Simulator
scpchicken
841
152ms
10 Aug 2026
Abundant Numbers (Long)
error256
67
873ms
9 Aug 2026
CSS Colors
scpchicken
4,210
134ms
8 Aug 2026