The Calendar hole will go live in approximately 19 hours. Why not try and solve it ahead of time?
Farey Sequence in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 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) 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 Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 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) 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 Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 159th namelessiw 903 81 356ms 23 Aug 2024 159th AdrienHache 🇫🇷 903 81 399ms 5 hours ago 163rd JayXon 🇺🇸 902 74 87ms 6 Dec 2023 163rd Steffan153 🇫🇮 902 74 88ms 11 Jul 2024 163rd DialFrost 🇸🇬 902 74 85ms 15 Nov 2024 163rd sean-niemann 🇺🇸 902 74 84ms 26 Apr 2025 163rd albanian-laundromat 902 74 89ms 9 Nov 2025 168th Lydxn 🇨🇦 902 107 264ms 16 Dec 2023 168th JayXon 🇺🇸 902 107 263ms 16 Dec 2023 170th Steffan153 🇫🇮 901 73 2ms 5 Dec 2023 171st DialFrost 🇸🇬 901 78 83ms 3 Dec 2023 171st JayXon 🇺🇸 901 78 82ms 4 Dec 2023 171st sean-niemann 🇺🇸 901 78 85ms 4 Dec 2023 171st Steffan153 🇫🇮 901 78 84ms 5 Dec 2023 175th Shanethegamer 🇺🇸 900 70 1,318ms 1 Dec 2023 175th GrayJoKing 🇦🇺 900 70 41ms 2 Dec 2023 175th ovs-code 🇩🇪 900 70 67ms 12 Sep 2024 175th GrayJoKing 🇦🇺 900 70 71ms 13 Sep 2024 175th error256 900 70 70ms 14 Feb 2025 180th Steffan153 🇫🇮 900 77 11ms 12 Dec 2023 180th zacjl 900 77 14ms 3 Jan 2025 180th kg583 🇺🇸 900 77 13ms 7 Oct 2025 183rd edsrzf 🇳🇿 900 83 4ms 2 Jan 2025 183rd pardouin 🇫🇷 900 83 4ms 25 Apr 2025 185th GrayJoKing 🇦🇺 899 72 10ms 2 Dec 2023 186th ovs-code 🇩🇪 899 90 420ms 1 Dec 2023 186th sean-niemann 🇺🇸 899 90 377ms 3 Dec 2023 186th DialFrost 🇸🇬 899 90 406ms 3 Dec 2023 186th JayXon 🇺🇸 899 90 417ms 4 Dec 2023 186th Lydxn 🇨🇦 899 90 447ms 16 Dec 2023 186th Steffan153 🇫🇮 899 90 426ms 16 Dec 2023 192nd pardouin 🇫🇷 898 81 3,143ms 3 Jul 2025 193rd GolfingSuccess 🇬🇷 898 95 59ms 4 Dec 2023 193rd nwellnhof 🇩🇪 898 95 59ms 2 Jun 2024 195th xsot 🇸🇬 897 79 5ms 28 Jul 2025 196th JayXon 🇺🇸 896 62 911ms 6 Dec 2023 196th stefangimmillaro 896 62 803ms 29 Apr 2024 198th Lydxn 🇨🇦 896 70 2ms 15 Jan 2024 198th Steffan153 🇫🇮 896 70 2ms 16 Jan 2024 198th GolfingSuccess 🇬🇷 896 70 3ms 20 Nov 2025 201st DialFrost 🇸🇬 896 72 2ms 3 Dec 2023 201st rucin93 🇵🇱 896 72 2ms 3 Dec 2023 201st m-tkach 🇺🇦 896 72 2ms 4 Dec 2023 201st Steffan153 🇫🇮 896 72 2ms 5 Dec 2023 201st sean-niemann 🇺🇸 896 72 2ms 10 Dec 2023 206th Steffan153 🇫🇮 896 80 27ms 5 Dec 2023 206th m-tkach 🇺🇦 896 80 27ms 11 Dec 2023 206th sean-niemann 🇺🇸 896 80 28ms 20 May 2025 209th Steffan153 🇫🇮 895 61 8ms 18 Aug 2024 209th GrayJoKing 🇦🇺 895 61 10ms 19 Aug 2024 209th btnlq 895 61 7ms 19 Aug 2024 212th edsrzf 🇳🇿 894 80 40ms 30 Dec 2024 212th DialFrost 🇸🇬 894 80 43ms 13 Feb 2025 212th kg583 🇺🇸 894 80 43ms 13 Feb 2025 212th zacjl 894 80 42ms 15 Feb 2025 212th pardouin 🇫🇷 894 80 42ms 25 Apr 2025 217th emplv 🇱🇻 894 108 260ms 1 Dec 2023 217th MeWhenI 🇻🇦 894 108 274ms 1 Dec 2023 217th DialFrost 🇸🇬 894 108 264ms 3 Dec 2023 217th sean-niemann 🇺🇸 894 108 260ms 4 Dec 2023 221st xsot 🇸🇬 893 62 4ms 7 Apr 2024 222nd primo-ppcg 🇹🇭 893 75 39ms 23 Jan 2025 223rd CLOStrophobic 🇮🇹 892 80 18ms 25 Jan 2025 223rd edsrzf 🇳🇿 892 80 19ms 15 Feb 2025 225th JayXon 🇺🇸 892 89 3ms 10 Nov 2024 226th DialFrost 🇸🇬 891 54 957ms 26 Feb 2024 227th DialFrost 🇸🇬 891 69 85ms 17 Mar 2025 228th DialFrost 🇸🇬 891 90 116ms 4 Apr 2025 228th emgordon154 891 90 118ms 18 Apr 2025 228th ovs-code 🇩🇪 891 90 125ms 20 Apr 2025 228th sean-niemann 🇺🇸 891 90 127ms 4 Jun 2025 228th lynn 891 90 123ms 6 Nov 2025 233rd sean-niemann 🇺🇸 890 66 112ms 4 Dec 2023 234th Shanethegamer 🇺🇸 890 79 82ms 1 Dec 2023 234th MeWhenI 🇻🇦 890 79 83ms 1 Dec 2023 234th stefangimmillaro 890 79 82ms 28 Apr 2024 237th duckyluuk 🇳🇱 889 60 344ms 28 Aug 2024 237th albanian-laundromat 889 60 396ms 1 Oct 2025 237th snoozingnewt 🇨🇦 889 60 400ms 15 Oct 2025 240th MeWhenI 🇻🇦 889 74 2ms 1 Dec 2023 First Prev 161–240 of 1,474 Next Last