Collatz in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript 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 Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Knight 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 F# Factor Forth Fortran Gleam Go GolfScript 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 Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 675th roupiq 🇵🇱 870 97 22 Nov 2023 677th DialFrost 🇸🇬 869 86 24 Oct 2024 677th stefangimmillaro 869 86 14 Jan 2025 679th janbehrens 🇩🇪 869 90 21 Apr 2023 679th Yewzir 🇧🇪 869 90 22 Apr 2023 679th DialFrost 🇸🇬 869 90 6 Nov 2023 679th Ripick 869 90 27 Nov 2024 683rd GolfingSuccess 🇬🇷 868 71 5 May 2022 683rd emplv 🇱🇻 868 71 5 May 2022 683rd JayXon 🇺🇸 868 71 7 May 2022 683rd m-tkach 🇺🇦 868 71 15 May 2022 683rd nwellnhof 🇩🇪 868 71 5 Jun 2022 683rd Irratix 🇳🇱 868 71 13 Jun 2022 683rd michael-pruglo 🇺🇦 868 71 13 Jul 2022 683rd stefangimmillaro 868 71 2 Jun 2023 683rd kkoenig 868 71 21 Dec 2023 683rd JohandeRuiter 🇳🇱 868 71 14 Sep 2024 683rd masinag 🇮🇹 868 71 6 Oct 2024 683rd KasperKivimaeki 🇫🇮 868 71 27 Mar 2025 695th AlephSquirrel 867 80 20 Apr 2023 695th ashtraypettingzoo 🇺🇸 867 80 1 Apr 2024 697th jacobly0 🇺🇸 867 153 26 Sep 2023 698th nwellnhof 🇩🇪 866 53 4 May 2022 698th GrayJoKing 🇦🇺 866 53 6 May 2022 700th dieggsy 866 97 8 Oct 2024 701st lukehewittvandy 866 135 18 Jul 2022 701st OriEy 866 135 27 Apr 2023 701st Maximizer02 866 135 8 Jun 2024 701st 0dyse 866 135 23 Apr 2025 705th Andriamanitra 🇫🇮 864 54 21 Jul 2022 705th jared-hughes 864 54 12 Sep 2022 705th OhmNomNom 864 54 7 Oct 2022 705th olleicua 🇺🇸 864 54 21 Jan 2024 705th LostSyntax21 🇬🇧 864 54 12 Mar 2025 705th AbrahamJLR 🇻🇪 864 54 4 Jun 2025 711th Shanethegamer 🇺🇸 864 70 12 Dec 2022 711th Alessandro-Balconi 🇮🇹 864 70 26 Dec 2022 713th DialFrost 🇸🇬 863 64 10 Jul 2024 714th MeWhenI 🇻🇦 863 85 27 Jun 2022 714th Shanethegamer 🇺🇸 863 85 15 May 2023 716th mtirado1 862 75 13 Aug 2022 717th Grrisly 862 114 25 Mar 2024 718th MeWhenI 🇻🇦 862 154 10 Oct 2023 719th Steffan153 🇫🇮 861 82 23 Feb 2023 720th tomh1012 861 90 5 May 2022 720th deadp4nda 🇩🇪 861 90 26 Apr 2024 720th 123mjb 861 90 23 Jun 2025 723rd TylerBloom 861 96 22 Mar 2024 724th shellbertt 🇨🇦 861 98 9 May 2022 724th iakolzin 861 98 26 May 2022 724th Betuaredead 861 98 5 Jan 2023 724th oceko 861 98 19 Feb 2024 724th dokutan 861 98 17 Mar 2024 724th cuzdav 861 98 4 May 2025 730th crizin 🇰🇷 860 136 9 Sep 2023 730th TheZwierzLF 🇵🇱 860 136 2 Jun 2025 732nd GrayJoKing 🇦🇺 859 56 15 Jan 2024 732nd AlephSquirrel 859 56 21 Jan 2024 734th Setvizan 859 62 12 Jan 2023 734th GreenBeansAgainstVeganism 859 62 13 Jan 2023 734th arctouch-cristiannevianna 859 62 3 Apr 2023 734th Corxldyphik 859 62 11 Apr 2023 734th Blockyheadman 859 62 1 Nov 2023 734th ollyspooner 859 62 22 Nov 2023 734th itserasmus 859 62 25 Jan 2024 734th Jacob385 859 62 13 Mar 2024 734th junkondo-jp 859 62 30 Jun 2024 734th ShiraJoseph 🇺🇸 859 62 1 Mar 2025 744th yzhs 🇩🇪 859 65 16 Jun 2022 744th rollershutter 859 65 9 Sep 2022 744th bac0id 859 65 26 Sep 2023 744th mossiegoat 859 65 8 Jun 2025 744th RaBa21 🇭🇺 859 65 27 days ago 749th steffan-polygolf 859 73 23 Feb 2023 749th MWI-polygolf 859 73 6 Dec 2023 Prev 676–750 of 3,209 Next