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 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 Topological Sort 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 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 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 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 Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 673rd Ripick 869 90 27 Nov 2024 677th GolfingSuccess 🇬🇷 868 71 5 May 2022 677th emplv 🇱🇻 868 71 5 May 2022 677th JayXon 🇺🇸 868 71 7 May 2022 677th m-tkach 🇺🇦 868 71 15 May 2022 677th nwellnhof 🇩🇪 868 71 5 Jun 2022 677th Irratix 🇳🇱 868 71 13 Jun 2022 677th michael-pruglo 🇺🇦 868 71 13 Jul 2022 677th stefangimmillaro 868 71 2 Jun 2023 677th kkoenig 868 71 21 Dec 2023 677th JohandeRuiter 🇳🇱 868 71 14 Sep 2024 677th masinag 🇮🇹 868 71 6 Oct 2024 677th KasperKivimaeki 🇫🇮 868 71 27 Mar 2025 689th AlephSquirrel 867 80 20 Apr 2023 689th ashtraypettingzoo 🇺🇸 867 80 1 Apr 2024 691st DialFrost 🇸🇬 867 86 24 Oct 2024 691st stefangimmillaro 867 86 14 Jan 2025 693rd jacobly0 🇺🇸 867 153 26 Sep 2023 694th nwellnhof 🇩🇪 866 53 4 May 2022 694th GrayJoKing 🇦🇺 866 53 6 May 2022 696th dieggsy 866 97 8 Oct 2024 697th lukehewittvandy 866 135 18 Jul 2022 697th OriEy 866 135 27 Apr 2023 697th Maximizer02 866 135 8 Jun 2024 697th 0dyse 866 135 23 Apr 2025 701st Andriamanitra 🇫🇮 864 54 21 Jul 2022 701st jared-hughes 864 54 12 Sep 2022 701st OhmNomNom 864 54 7 Oct 2022 701st olleicua 🇺🇸 864 54 21 Jan 2024 701st LostSyntax21 🇬🇧 864 54 12 Mar 2025 701st AbrahamJLR 🇻🇪 864 54 4 Jun 2025 707th Shanethegamer 🇺🇸 864 70 12 Dec 2022 707th Alessandro-Balconi 🇮🇹 864 70 26 Dec 2022 709th DialFrost 🇸🇬 863 64 10 Jul 2024 710th MeWhenI 🇻🇦 863 85 27 Jun 2022 710th Shanethegamer 🇺🇸 863 85 15 May 2023 712th mtirado1 862 75 13 Aug 2022 713th Grrisly 862 114 25 Mar 2024 714th MeWhenI 🇻🇦 862 154 10 Oct 2023 715th Steffan153 🇫🇮 861 82 23 Feb 2023 716th tomh1012 861 90 5 May 2022 716th deadp4nda 🇩🇪 861 90 26 Apr 2024 716th 123mjb 861 90 23 Jun 2025 719th TylerBloom 861 96 22 Mar 2024 720th shellbertt 🇨🇦 861 98 9 May 2022 720th iakolzin 861 98 26 May 2022 720th Betuaredead 861 98 5 Jan 2023 720th oceko 861 98 19 Feb 2024 720th dokutan 861 98 17 Mar 2024 720th cuzdav 861 98 4 May 2025 726th crizin 🇰🇷 860 136 9 Sep 2023 726th TheZwierzLF 🇵🇱 860 136 2 Jun 2025 728th GrayJoKing 🇦🇺 859 56 15 Jan 2024 728th AlephSquirrel 859 56 21 Jan 2024 730th Setvizan 859 62 12 Jan 2023 730th GreenBeansAgainstVeganism 859 62 13 Jan 2023 730th arctouch-cristiannevianna 859 62 3 Apr 2023 730th Corxldyphik 859 62 11 Apr 2023 730th Blockyheadman 859 62 1 Nov 2023 730th ollyspooner 859 62 22 Nov 2023 730th itserasmus 859 62 25 Jan 2024 730th Jacob385 859 62 13 Mar 2024 730th junkondo-jp 859 62 30 Jun 2024 730th ShiraJoseph 🇺🇸 859 62 1 Mar 2025 740th yzhs 🇩🇪 859 65 16 Jun 2022 740th rollershutter 859 65 9 Sep 2022 740th bac0id 859 65 26 Sep 2023 740th mossiegoat 859 65 8 Jun 2025 740th RaBa21 🇭🇺 859 65 18 days ago 745th steffan-polygolf 859 73 23 Feb 2023 745th MWI-polygolf 859 73 6 Dec 2023 745th HumanoidCPU 859 73 7 May 2024 748th ovs-code 🇩🇪 859 133 8 Jul 2024 749th ulucs 858 35 8 May 2022 749th bstrat 858 35 6 Jun 2024 Prev 676–750 of 3,194 Next