The Calendar hole will go live in approximately 24 hours. Why not try and solve it ahead of time?
Farey Sequence in all languages in bytes. 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 Bytes Time Submitted 401st emgordon154 852 100 5ms 22 May 2025 402nd copy 851 34 3ms 25 Sep 2025 403rd Shanethegamer 🇺🇸 851 80 104ms 1 Dec 2023 404th ovs-code 🇩🇪 850 133 462ms 29 Mar 2025 405th pardouin 🇫🇷 849 76 2ms 20 Aug 2024 406th DialFrost 🇸🇬 845 64 128ms 3 Aug 2024 406th pardouin 🇫🇷 845 64 128ms 30 Aug 2024 408th MeWhenI 🇻🇦 844 85 27ms 1 Dec 2023 408th edsrzf 🇳🇿 844 85 27ms 25 Apr 2025 410th AdrienHache 🇫🇷 844 101 60ms 5 hours ago 411th blaztoma 🇱🇹 843 53 2ms 22 Nov 2025 412th emgordon154 843 96 479ms 28 May 2025 413th MeWhenI 🇻🇦 842 66 1,018ms 1 Dec 2023 413th ovs-code 🇩🇪 842 66 949ms 4 Dec 2023 413th emgordon154 842 66 921ms 9 Apr 2025 416th DialFrost 🇸🇬 842 73 82ms 16 Dec 2023 417th stefangimmillaro 842 90 447ms 6 Oct 2025 418th Yewzir 🇧🇪 841 87 369ms 26 May 2024 419th GrayJoKing 🇦🇺 837 75 3ms 2 Dec 2023 420th Shanethegamer 🇺🇸 837 87 128ms 1 Dec 2023 420th DialFrost 🇸🇬 837 87 126ms 6 Aug 2024 422nd duckyluuk 🇳🇱 836 87 3,199ms 25 Oct 2024 422nd sean-niemann 🇺🇸 836 87 3,127ms 30 Oct 2024 424th Tavistock 835 83 8ms 13 Dec 2023 425th pardouin 🇫🇷 834 50 38ms 9 Sep 2025 426th edsrzf 🇳🇿 833 114 28ms 25 Apr 2025 427th ovs-code 🇩🇪 832 65 140ms 4 Aug 2024 428th stefangimmillaro 830 82 106ms 30 Apr 2024 429th GrayJoKing 🇦🇺 829 96 80ms 4 Dec 2023 430th MeWhenI 🇻🇦 829 105 5ms 1 Dec 2023 431st saito-ta 🇯🇵 828 61 346ms 1 Dec 2023 431st retrohun 828 61 571ms 16 Jun 2024 433rd GolfingSuccess 🇬🇷 828 66 9ms 13 Aug 2024 434th Shanethegamer 🇺🇸 828 71 131ms 1 Dec 2023 435th Yewzir 🇧🇪 828 103 58ms 26 May 2024 436th SirBogman 🇺🇸 827 81 40ms 3 Jun 2025 437th MeWhenI 🇻🇦 827 103 3ms 1 Dec 2023 438th MeWhenI 🇻🇦 827 227 15ms 20 Apr 2025 439th nwellnhof 🇩🇪 826 77 19ms 12 Jan 2024 440th stefangimmillaro 826 88 3,211ms 10 Nov 2024 441st snoozingnewt 🇨🇦 826 97 122ms 30 Nov 2025 442nd MeWhenI 🇻🇦 826 115 25ms 1 Dec 2023 443rd emgordon154 825 70 10ms 9 Mar 2025 444th SirBogman 🇺🇸 823 53 131ms 4 Dec 2023 445th Shanethegamer 🇺🇸 823 76 126ms 1 Dec 2023 445th MeWhenI 🇻🇦 823 76 118ms 1 Dec 2023 445th edsrzf 🇳🇿 823 76 119ms 10 Jul 2025 448th CaedenHarper 🇨🇦 822 89 348ms 17 Oct 2025 449th sisyphus-ppcg 🇦🇺 821 28 60ms 1 Dec 2023 450th DialFrost 🇸🇬 819 79 71ms 24 Mar 2025 451st stefangimmillaro 817 51 39ms 26 Apr 2024 451st Natanaelel 🇸🇪 817 51 38ms 24 Jan 2025 453rd alemelis 817 61 812ms 25 Feb 2024 454th sisyphus-ppcg 🇦🇺 817 79 2ms 5 Dec 2023 454th AdrienHache 🇫🇷 817 79 3ms 5 hours ago 456th ovs-code 🇩🇪 815 77 2ms 15 Dec 2023 457th dirckvdende 815 78 11ms 28 Jul 2025 458th targrik 814 68 303ms 29 Jan 2025 459th DialFrost 🇸🇬 814 174 1,689ms 15 Sep 2025 460th MeWhenI 🇻🇦 813 70 721ms 15 Sep 2025 461st DialFrost 🇸🇬 812 92 5ms 14 Feb 2025 462nd acotis 810 99 118ms 24 Mar 2025 463rd GolfingSuccess 🇬🇷 809 67 2ms 16 Oct 2024 464th MeWhenI 🇻🇦 808 78 41ms 4 Dec 2023 465th MeWhenI 🇻🇦 808 90 3,087ms 24 Oct 2024 466th stefangimmillaro 807 83 39ms 26 Apr 2025 466th MeWhenI 🇻🇦 807 83 40ms 29 Apr 2025 468th btjones0 805 79 10ms 1 Dec 2023 468th BREMAUCY 🇫🇷 805 79 10ms 1 Dec 2023 468th namelessiw 805 79 10ms 5 Dec 2023 468th annaproxy 805 79 10ms 11 Dec 2023 468th OllieBoyne 🇬🇧 805 79 11ms 7 Jan 2024 468th nstearns96 🇬🇧 805 79 10ms 28 Jun 2024 468th FortuiteMan 🇫🇷 805 79 11ms 26 Sep 2024 468th lifthrasiir 🇰🇷 805 79 10ms 12 Nov 2024 468th bzijlema 🇳🇱 805 79 11ms 27 Nov 2024 468th plcc0 805 79 10ms 21 Mar 2025 468th bricknellj 805 79 11ms 2 Apr 2025 468th guilhem-roy 🇫🇷 805 79 11ms 29 May 2025 468th andrewjc2000 805 79 10ms 27 Jul 2025 First Prev 401–480 of 1,485 Next Last