The Calendar hole will go live in approximately 13 days. 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 721st Yewzir 🇧🇪 599 135 456ms 5 Feb 2024 722nd Natanaelel 🇸🇪 597 122 137ms 22 Mar 2024 723rd mikehanus 596 94 10ms 5 Dec 2023 723rd eiburns 596 94 10ms 13 Dec 2023 723rd msbranicky 596 94 11ms 1 Jan 2024 723rd InigoK 🇺🇸 596 94 10ms 29 Aug 2025 727th MeWhenI 🇻🇦 594 71 258ms 1 Dec 2023 728th commandblockguy 🇺🇸 593 90 415ms 15 Jan 2024 728th HumanoidCPU 593 90 366ms 5 Jun 2024 730th emgordon154 593 126 12ms 2 Jan 2025 731st dokutan 592 106 2ms 12 Nov 2025 732nd Yewzir 🇧🇪 592 115 110ms 5 Feb 2024 733rd dokutan 592 144 80ms 30 Mar 2025 734th dokutan 591 119 82ms 31 Mar 2025 735th janbehrens 🇩🇪 590 95 11ms 1 Dec 2023 735th wuzekai518 590 95 11ms 16 Jul 2024 735th CoolBvll 590 95 10ms 13 Jun 2025 735th Techdude01 590 95 11ms 14 Aug 2025 739th janbehrens 🇩🇪 590 137 433ms 22 Dec 2023 740th msbranicky 588 112 2ms 2 Jan 2024 741st janbehrens 🇩🇪 588 145 62ms 22 Dec 2023 742nd HumanoidCPU 588 164 272ms 26 Aug 2024 743rd arctouch-cristiannevianna 585 125 358ms 19 Feb 2024 744th dokutan 583 130 454ms 24 Sep 2025 744th Yewzir 🇧🇪 583 130 485ms 2 Oct 2025 746th Jonatan6 🇩🇰 581 111 2ms 27 Apr 2024 746th dokutan 581 111 3ms 30 Mar 2025 748th MeWhenI 🇻🇦 580 132 3ms 1 Dec 2023 749th coreynash 577 100 10ms 14 Jul 2024 750th Yewzir 🇧🇪 577 139 116ms 5 Feb 2024 751st Jonatan6 🇩🇰 576 148 68ms 27 Apr 2024 752nd snoozingnewt 🇨🇦 574 141 374ms 15 Oct 2025 753rd dokutan 573 84 851ms 9 Apr 2024 754th snoozingnewt 🇨🇦 573 115 2ms 15 Oct 2025 755th bac0id 572 98 11ms 10 Jan 2025 755th Troon 572 98 10ms 18 Feb 2025 757th c0d3-4-F00d 🇩🇪 571 113 2ms 4 Dec 2023 757th bac0id 571 113 2ms 10 Jan 2025 759th steffan-polygolf 570 131 4ms 29 Feb 2024 760th ethanlally 570 133 363ms 14 Nov 2025 760th snoozingnewt 🇨🇦 570 133 419ms 13 days ago 762nd rboath 569 108 90ms 17 Dec 2024 763rd brimstonetrader 569 128 130ms 23 Feb 2024 764th snoozingnewt 🇨🇦 569 150 535ms 15 Oct 2025 765th msbranicky 568 94 451ms 17 Jan 2024 766th msbranicky 568 128 3,228ms 9 Jan 2025 767th dokutan 567 129 377ms 26 Oct 2024 767th snoozingnewt 🇨🇦 567 129 384ms 15 Oct 2025 769th Ripick 566 99 10ms 1 Dec 2023 769th hellwue 566 99 11ms 22 Feb 2024 771st madeforlosers 563 112 41ms 8 Dec 2023 772nd Natanaelel 🇸🇪 562 133 19ms 29 Dec 2023 773rd snoozingnewt 🇨🇦 560 130 119ms 15 Oct 2025 774th Chinay-Domitrix 🇺🇸 559 130 4,169ms 4 Nov 2025 775th snoozingnewt 🇨🇦 559 170 25ms 15 Oct 2025 776th jerrandolph 558 173 260ms 22 Dec 2023 777th 051 🇸🇬 555 101 11ms 24 Dec 2023 778th mrmena 🇦🇺 553 114 43ms 11 May 2024 779th CarsonChr 🇺🇸 553 145 122ms 24 Dec 2023 780th JRaspass 🇬🇧 551 73 126ms 4 Jan 2024 781st kkoenig 551 117 2ms 22 Dec 2023 782nd dokutan 551 132 3,871ms 26 Oct 2024 783rd msbranicky 550 155 1,166ms 2 Jan 2024 784th WillConker 549 102 26ms 10 Mar 2024 785th msbranicky 549 112 88ms 8 Jan 2024 786th MeWhenI 🇻🇦 548 115 68ms 1 Dec 2023 787th snoozingnewt 🇨🇦 546 156 2ms 15 Oct 2025 788th MWI-polygolf 545 137 4ms 7 Dec 2023 789th Apataras 545 139 395ms 3 Jul 2025 790th weliveinhell 🇭🇹 545 147 121ms 2 Dec 2023 791st markusgraube 544 103 10ms 22 Jun 2024 792nd HumanoidCPU 542 119 2ms 5 Mar 2024 793rd dokutan 541 77 44ms 29 Oct 2024 794th KadinSchultz 539 104 9ms 4 Dec 2023 794th cros107 🇦🇺 539 104 10ms 26 Dec 2023 794th JunkIce 539 104 11ms 24 Nov 2024 797th janbehrens 🇩🇪 538 120 2ms 22 Dec 2023 798th msbranicky 538 149 122ms 1 Jan 2024 799th msbranicky 536 151 166ms 2 Jan 2024 800th CatsAreFluffy 536 159 89ms 31 Jan 2024 First Prev 721–800 of 1,473 Next Last