The Calendar hole will go live in approximately 2 days. 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 721st dokutan 604 134 414ms 27 Sep 2025 722nd annaproxy 603 107 2ms 20 Dec 2023 723rd MeWhenI 🇻🇦 603 132 90ms 1 Dec 2023 724th msbranicky 603 235 1,619ms 16 Sep 2025 725th SirBogman 🇺🇸 602 70 253ms 28 Feb 2024 726th dokutan 602 113 96ms 31 Oct 2024 727th Yewzir 🇧🇪 601 96 10ms 5 Feb 2024 728th Yewzir 🇧🇪 599 135 456ms 5 Feb 2024 729th JRaspass 🇬🇧 598 73 116ms 4 Jan 2024 730th snoozingnewt 🇨🇦 598 133 86ms 15 Oct 2025 731st dokutan 598 237 1,728ms 19 Oct 2025 732nd Natanaelel 🇸🇪 597 122 137ms 22 Mar 2024 733rd MeWhenI 🇻🇦 594 71 251ms 1 Dec 2023 734th emgordon154 593 126 12ms 2 Jan 2025 735th dokutan 592 106 2ms 12 Nov 2025 736th Yewzir 🇧🇪 592 115 110ms 5 Feb 2024 737th dokutan 592 144 60ms 30 Mar 2025 738th CatsAreFluffy 591 93 52ms 14 Mar 2024 739th dokutan 591 119 82ms 31 Mar 2025 740th dokutan 590 104 432ms 28 Oct 2024 741st janbehrens 🇩🇪 590 137 433ms 22 Dec 2023 742nd neihousaigaai 589 108 12ms 11 Feb 2024 743rd janbehrens 🇩🇪 588 145 60ms 22 Dec 2023 744th HumanoidCPU 588 164 272ms 26 Aug 2024 745th msbranicky 587 112 2ms 2 Jan 2024 746th dokutan 586 85 711ms 9 Apr 2024 747th arctouch-cristiannevianna 585 125 358ms 19 Feb 2024 748th Bodo171 583 109 10ms 1 Jul 2024 748th trist224 🇫🇷 583 109 13ms 3 Aug 2025 750th dokutan 583 130 454ms 24 Sep 2025 750th Yewzir 🇧🇪 583 130 485ms 2 Oct 2025 752nd Jonatan6 🇩🇰 581 111 2ms 27 Apr 2024 752nd dokutan 581 111 3ms 30 Mar 2025 754th MeWhenI 🇻🇦 580 132 3ms 1 Dec 2023 755th rollershutter 578 110 11ms 20 Dec 2023 755th fourth-bit 578 110 21ms 1 Jul 2024 755th jipsong 🇩🇪 578 110 20ms 5 Jul 2025 758th coreynash 577 100 10ms 14 Jul 2024 758th snoozingnewt 🇨🇦 577 100 10ms 15 Oct 2025 760th Yewzir 🇧🇪 577 139 116ms 5 Feb 2024 761st Jonatan6 🇩🇰 576 148 62ms 27 Apr 2024 762nd snoozingnewt 🇨🇦 574 141 374ms 15 Oct 2025 763rd minhtrancccp 573 111 10ms 1 Dec 2023 763rd croc54 573 111 20ms 30 Dec 2024 763rd Mikey-Beep 🇬🇧 573 111 21ms 24 Jul 2025 763rd KatieLG 🇬🇧 573 111 19ms 15 Sep 2025 763rd CommandLeo 🇮🇹 573 111 21ms 1 Nov 2025 768th snoozingnewt 🇨🇦 572 115 2ms 15 Oct 2025 769th c0d3-4-F00d 🇩🇪 571 113 2ms 4 Dec 2023 769th bac0id 571 113 2ms 10 Jan 2025 771st steffan-polygolf 570 131 4ms 29 Feb 2024 772nd ethanlally 570 133 363ms 14 Nov 2025 772nd snoozingnewt 🇨🇦 570 133 419ms 23 days ago 774th rboath 569 108 90ms 17 Dec 2024 775th brimstonetrader 569 128 130ms 23 Feb 2024 776th snoozingnewt 🇨🇦 569 150 401ms 15 Oct 2025 777th knutae 🇳🇴 568 112 21ms 16 Dec 2023 778th msbranicky 568 128 3,130ms 9 Jan 2025 779th dokutan 567 129 377ms 26 Oct 2024 779th snoozingnewt 🇨🇦 567 129 384ms 15 Oct 2025 781st madeforlosers 563 112 41ms 8 Dec 2023 782nd mathisfun271 563 113 19ms 23 Dec 2023 782nd fkantelberg 563 113 21ms 12 Jul 2025 784th Natanaelel 🇸🇪 562 133 19ms 29 Dec 2023 785th snoozingnewt 🇨🇦 560 130 119ms 15 Oct 2025 786th Chinay-Domitrix 🇺🇸 559 130 3,192ms 4 Nov 2025 787th snoozingnewt 🇨🇦 559 170 25ms 15 Oct 2025 788th dokutan 558 102 715ms 22 Sep 2025 789th jerrandolph 558 173 260ms 22 Dec 2023 790th dokutan 554 111 90ms 31 Mar 2025 791st mrmena 🇦🇺 553 114 43ms 11 May 2024 792nd anarconic 553 115 10ms 11 Dec 2023 792nd moustave 553 115 20ms 19 Nov 2024 792nd damoose717 553 115 20ms 23 May 2025 795th CarsonChr 🇺🇸 553 145 122ms 24 Dec 2023 796th kkoenig 551 117 2ms 22 Dec 2023 797th dokutan 551 132 3,183ms 26 Oct 2024 798th dokutan 550 105 9ms 5 Jun 2025 799th msbranicky 550 155 1,014ms 2 Jan 2024 800th msbranicky 549 112 88ms 8 Jan 2024 First Prev 721–800 of 1,485 Next Last