The Calendar hole will go live in approximately 30 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 401st pardouin 🇫🇷 834 50 38ms 9 Sep 2025 402nd lifthrasiir 🇰🇷 834 64 327ms 2 Dec 2024 403rd edsrzf 🇳🇿 833 114 28ms 25 Apr 2025 404th rucin93 🇵🇱 831 63 140ms 5 Jan 2025 405th stefangimmillaro 830 82 106ms 30 Apr 2024 406th saito-ta 🇯🇵 828 61 346ms 1 Dec 2023 406th retrohun 828 61 571ms 16 Jun 2024 408th GolfingSuccess 🇬🇷 828 66 9ms 13 Aug 2024 409th Shanethegamer 🇺🇸 828 71 131ms 1 Dec 2023 410th Yewzir 🇧🇪 828 103 58ms 26 May 2024 411th SirBogman 🇺🇸 827 81 40ms 3 Jun 2025 412th MeWhenI 🇻🇦 827 103 3ms 1 Dec 2023 413th MeWhenI 🇻🇦 827 227 15ms 20 Apr 2025 414th stefangimmillaro 826 88 3,211ms 10 Nov 2024 415th snoozingnewt 🇨🇦 826 97 122ms 30 Nov 2025 416th MeWhenI 🇻🇦 826 115 25ms 1 Dec 2023 417th emgordon154 825 70 10ms 9 Mar 2025 418th Shanethegamer 🇺🇸 823 76 126ms 1 Dec 2023 418th MeWhenI 🇻🇦 823 76 118ms 1 Dec 2023 418th edsrzf 🇳🇿 823 76 119ms 10 Jul 2025 421st CaedenHarper 🇨🇦 822 89 348ms 17 Oct 2025 422nd sisyphus-ppcg 🇦🇺 821 28 60ms 1 Dec 2023 423rd ovs-code 🇩🇪 820 49 153ms 31 Dec 2023 424th DialFrost 🇸🇬 819 79 71ms 24 Mar 2025 425th DialFrost 🇸🇬 818 64 128ms 3 Aug 2024 426th stefangimmillaro 817 51 39ms 26 Apr 2024 426th Natanaelel 🇸🇪 817 51 38ms 24 Jan 2025 428th sisyphus-ppcg 🇦🇺 817 79 2ms 5 Dec 2023 428th AdrienHache 🇫🇷 817 79 3ms 16 mins ago 430th alemelis 816 59 812ms 25 Feb 2024 431st ovs-code 🇩🇪 815 77 2ms 15 Dec 2023 432nd targrik 814 68 303ms 29 Jan 2025 433rd DialFrost 🇸🇬 814 174 1,689ms 15 Sep 2025 434th MeWhenI 🇻🇦 813 70 721ms 15 Sep 2025 435th SirBogman 🇺🇸 812 69 11ms 1 Dec 2023 435th bizy-coder 812 69 11ms 1 Dec 2023 435th inventshah 812 69 11ms 1 Dec 2023 435th Shanethegamer 🇺🇸 812 69 11ms 1 Dec 2023 435th Alex-x90 🇺🇸 812 69 10ms 4 Dec 2023 435th prplz 🇦🇺 812 69 10ms 10 Dec 2023 435th sgiandomenico 812 69 10ms 18 Dec 2023 435th scpchicken 🇵🇼 812 69 10ms 28 Dec 2023 435th StefanHabel 🇨🇦 812 69 10ms 11 Feb 2024 435th IanUtley 812 69 10ms 14 Jun 2024 435th Bulmenisaurus 812 69 10ms 17 Jul 2024 435th edsrzf 🇳🇿 812 69 11ms 20 Dec 2024 435th KasperKivimaeki 🇫🇮 812 69 11ms 5 Jul 2025 435th blaztoma 🇱🇹 812 69 12ms 22 Nov 2025 449th DialFrost 🇸🇬 812 92 5ms 14 Feb 2025 450th acotis 810 99 118ms 24 Mar 2025 451st GolfingSuccess 🇬🇷 809 67 2ms 16 Oct 2024 452nd ovs-code 🇩🇪 808 66 413ms 15 Jan 2024 452nd GrayJoKing 🇦🇺 808 66 405ms 15 Jan 2024 452nd sisyphus-ppcg 🇦🇺 808 66 408ms 16 Jan 2024 452nd m-tkach 🇺🇦 808 66 424ms 20 Jan 2024 456th MeWhenI 🇻🇦 808 78 41ms 4 Dec 2023 457th MeWhenI 🇻🇦 808 90 3,087ms 24 Oct 2024 458th stefangimmillaro 807 83 39ms 26 Apr 2025 458th MeWhenI 🇻🇦 807 83 40ms 29 Apr 2025 460th ovs-code 🇩🇪 806 65 140ms 4 Aug 2024 461st GrayJoKing 🇦🇺 804 50 140ms 1 Dec 2023 462nd MeWhenI 🇻🇦 804 78 2ms 1 Dec 2023 462nd Yewzir 🇧🇪 804 78 2ms 26 May 2024 464th Shanethegamer 🇺🇸 804 89 41ms 12 Sep 2024 465th SirBogman 🇺🇸 803 234 16ms 4 Dec 2023 466th emgordon154 802 52 47ms 11 Sep 2024 466th sean-niemann 🇺🇸 802 52 38ms 13 Oct 2025 468th Steffan153 🇫🇮 802 63 113ms 5 Aug 2024 469th CaedenHarper 🇨🇦 802 72 10ms 23 Aug 2025 470th MeWhenI 🇻🇦 802 99 3ms 1 Dec 2023 470th albanian-laundromat 802 99 3ms 5 Oct 2025 472nd 5cw 🇺🇸 800 70 29ms 6 Jun 2024 473rd Kacarott 🇦🇺 798 79 72ms 13 Sep 2024 474th CaedenHarper 🇨🇦 798 95 453ms 3 Oct 2025 475th Yewzir 🇧🇪 797 81 2ms 26 May 2024 476th pardouin 🇫🇷 797 84 38ms 25 Apr 2025 477th GolfingSuccess 🇬🇷 796 67 401ms 15 Jan 2024 477th MeWhenI 🇻🇦 796 67 429ms 17 Jan 2024 479th stefangimmillaro 794 101 123ms 30 Apr 2024 480th edsrzf 🇳🇿 791 72 810ms 5 Sep 2025 First Prev 401–480 of 1,474 Next Last