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 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 320th Shanethegamer 🇺🇸 870 93 404ms 1 Dec 2023 322nd MeWhenI 🇻🇦 870 130 477ms 28 Mar 2025 322nd emgordon154 870 130 457ms 28 Mar 2025 322nd DialFrost 🇸🇬 870 130 471ms 28 Mar 2025 322nd Shanethegamer 🇺🇸 870 130 505ms 9 Apr 2025 322nd GolfingSuccess 🇬🇷 870 130 460ms 23 days ago 327th Shanethegamer 🇺🇸 869 111 250ms 1 Dec 2023 327th KasperKivimaeki 🇫🇮 869 111 254ms 8 Oct 2025 329th m-tkach 🇺🇦 868 48 41ms 1 Dec 2023 330th emgordon154 867 63 8ms 16 Nov 2024 331st GrayJoKing 🇦🇺 866 77 79ms 23 Jul 2024 332nd JayXon 🇺🇸 866 84 128ms 14 Jan 2024 333rd DialFrost 🇸🇬 865 64 11ms 14 Dec 2023 333rd ovs-code 🇩🇪 865 64 9ms 15 Dec 2023 333rd sean-niemann 🇺🇸 865 64 7ms 28 Dec 2023 336th GrayJoKing 🇦🇺 864 83 27ms 4 Dec 2023 336th DialFrost 🇸🇬 864 83 28ms 25 Mar 2025 338th emgordon154 864 164 1,758ms 7 days ago 338th JayXon 🇺🇸 864 164 1,843ms 6 days ago 340th MeWhenI 🇻🇦 863 73 1,277ms 1 Dec 2023 340th DialFrost 🇸🇬 863 73 1,324ms 9 Mar 2025 342nd namelessiw 862 65 11ms 6 Dec 2023 342nd FortuiteMan 🇫🇷 862 65 11ms 26 Sep 2024 342nd lifthrasiir 🇰🇷 862 65 11ms 16 Nov 2024 342nd plcc0 862 65 11ms 21 Mar 2025 342nd qpwoeirut 862 65 11ms 1 Oct 2025 342nd luuumine 🇫🇷 862 65 11ms 19 Nov 2025 348th stefangimmillaro 862 67 10ms 12 Sep 2024 349th primo-ppcg 🇹🇭 862 218 14ms 22 Apr 2025 350th GrayJoKing 🇦🇺 861 89 11ms 4 Dec 2023 351st HumanEquivalentUnit 860 49 641ms 5 Dec 2023 352nd nwellnhof 🇩🇪 860 52 3ms 16 Oct 2024 353rd MeWhenI 🇻🇦 860 75 2ms 1 Dec 2023 353rd Alex-x90 🇺🇸 860 75 2ms 4 Dec 2023 355th m-tkach 🇺🇦 860 99 3ms 3 Dec 2023 355th edsrzf 🇳🇿 860 99 3ms 22 Feb 2025 357th emplv 🇱🇻 859 61 128ms 29 Oct 2024 358th DialFrost 🇸🇬 858 219 15ms 20 Apr 2025 359th sean-niemann 🇺🇸 857 73 122ms 3 Dec 2023 359th DialFrost 🇸🇬 857 73 126ms 3 Dec 2023 361st DialFrost 🇸🇬 856 59 6ms 17 Sep 2024 362nd ovs-code 🇩🇪 856 85 129ms 30 Jan 2024 363rd jared-hughes 855 146 9ms 19 Dec 2024 364th GrayJoKing 🇦🇺 854 83 5ms 23 Jul 2024 365th edsrzf 🇳🇿 852 74 1,360ms 29 Apr 2025 366th emgordon154 852 100 5ms 22 May 2025 367th copy 851 34 3ms 25 Sep 2025 368th Shanethegamer 🇺🇸 851 80 104ms 1 Dec 2023 369th ovs-code 🇩🇪 850 133 462ms 29 Mar 2025 370th ovs-code 🇩🇪 849 66 10ms 1 Dec 2023 370th xnor-gate 849 66 10ms 1 Dec 2023 370th emplv 🇱🇻 849 66 10ms 1 Dec 2023 370th 4atj 849 66 11ms 30 Jun 2025 370th ryyyn 🇺🇸 849 66 12ms 102 mins ago 375th pardouin 🇫🇷 849 76 2ms 20 Aug 2024 376th MeWhenI 🇻🇦 844 85 27ms 1 Dec 2023 376th edsrzf 🇳🇿 844 85 27ms 25 Apr 2025 378th blaztoma 🇱🇹 843 53 2ms 22 Nov 2025 379th emgordon154 843 96 479ms 28 May 2025 380th MeWhenI 🇻🇦 842 66 1,018ms 1 Dec 2023 380th ovs-code 🇩🇪 842 66 949ms 4 Dec 2023 380th emgordon154 842 66 921ms 9 Apr 2025 383rd stefangimmillaro 842 90 447ms 6 Oct 2025 384th Yewzir 🇧🇪 841 87 369ms 26 May 2024 385th Natanaelel 🇸🇪 837 48 133ms 24 Jan 2025 386th GrayJoKing 🇦🇺 837 75 3ms 2 Dec 2023 387th Shanethegamer 🇺🇸 837 87 128ms 1 Dec 2023 387th DialFrost 🇸🇬 837 87 126ms 6 Aug 2024 389th orthoplex 🇨🇽 836 67 10ms 1 Dec 2023 389th GolfingSuccess 🇬🇷 836 67 11ms 4 Dec 2023 389th elgan65536 836 67 11ms 29 Mar 2024 389th stefangimmillaro 836 67 11ms 29 Apr 2024 389th zacjl 836 67 10ms 23 Aug 2024 389th HPWiz 🇳🇿 836 67 10ms 21 days ago 395th duckyluuk 🇳🇱 836 87 3,199ms 25 Oct 2024 395th sean-niemann 🇺🇸 836 87 3,127ms 30 Oct 2024 397th Tavistock 835 83 8ms 13 Dec 2023 397th dokutan 835 83 12ms 1 Jul 2024 399th pardouin 🇫🇷 834 50 38ms 9 Sep 2025 400th lifthrasiir 🇰🇷 834 64 327ms 2 Dec 2024 First Prev 321–400 of 1,474 Next Last