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 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 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 675th emplv 🇱🇻 868 71 5 May 2022 675th JayXon 🇺🇸 868 71 7 May 2022 675th m-tkach 🇺🇦 868 71 15 May 2022 675th nwellnhof 🇩🇪 868 71 5 Jun 2022 675th Irratix 🇳🇱 868 71 13 Jun 2022 675th michael-pruglo 🇺🇦 868 71 13 Jul 2022 675th stefangimmillaro 868 71 2 Jun 2023 675th kkoenig 868 71 21 Dec 2023 675th JohandeRuiter 🇳🇱 868 71 14 Sep 2024 675th masinag 🇮🇹 868 71 6 Oct 2024 675th KasperKivimaeki 🇫🇮 868 71 27 Mar 2025 687th AlephSquirrel 867 80 20 Apr 2023 687th ashtraypettingzoo 🇺🇸 867 80 1 Apr 2024 689th nwellnhof 🇩🇪 866 53 4 May 2022 689th GrayJoKing 🇦🇺 866 53 6 May 2022 691st DialFrost 🇸🇬 866 86 24 Oct 2024 691st stefangimmillaro 866 86 14 Jan 2025 693rd dieggsy 866 97 8 Oct 2024 694th lukehewittvandy 866 135 18 Jul 2022 694th OriEy 866 135 27 Apr 2023 694th Maximizer02 866 135 8 Jun 2024 694th 0dyse 866 135 23 Apr 2025 698th jacobly0 🇺🇸 866 153 26 Sep 2023 699th primo-ppcg 🇹🇭 866 208 12 days ago 700th Andriamanitra 🇫🇮 864 54 21 Jul 2022 700th jared-hughes 864 54 12 Sep 2022 700th OhmNomNom 864 54 7 Oct 2022 700th olleicua 🇺🇸 864 54 21 Jan 2024 700th LostSyntax21 🇬🇧 864 54 12 Mar 2025 700th AbrahamJLR 864 54 4 Jun 2025 706th Shanethegamer 🇺🇸 864 70 12 Dec 2022 706th Alessandro-Balconi 🇮🇹 864 70 26 Dec 2022 708th DialFrost 🇸🇬 863 64 10 Jul 2024 709th MeWhenI 🇻🇦 863 85 27 Jun 2022 709th Shanethegamer 🇺🇸 863 85 15 May 2023 711th mtirado1 862 75 13 Aug 2022 712th Grrisly 862 114 25 Mar 2024 713th Steffan153 🇫🇮 861 82 23 Feb 2023 714th tomh1012 861 90 5 May 2022 714th deadp4nda 🇩🇪 861 90 26 Apr 2024 714th 123mjb 861 90 15 days ago 717th TylerBloom 861 96 22 Mar 2024 718th shellbertt 🇨🇦 861 98 9 May 2022 718th iakolzin 861 98 26 May 2022 718th Betuaredead 861 98 5 Jan 2023 718th oceko 861 98 19 Feb 2024 718th dokutan 861 98 17 Mar 2024 718th cuzdav 861 98 4 May 2025 724th MeWhenI 🇻🇦 860 154 10 Oct 2023 725th GrayJoKing 🇦🇺 859 56 15 Jan 2024 725th AlephSquirrel 859 56 21 Jan 2024 727th Setvizan 859 62 12 Jan 2023 727th GreenBeansAgainstVeganism 859 62 13 Jan 2023 727th arctouch-cristiannevianna 859 62 3 Apr 2023 727th Corxldyphik 859 62 11 Apr 2023 727th Blockyheadman 859 62 1 Nov 2023 727th ollyspooner 859 62 22 Nov 2023 727th itserasmus 859 62 25 Jan 2024 727th Jacob385 859 62 13 Mar 2024 727th junkondo-jp 859 62 30 Jun 2024 727th ShiraJoseph 🇺🇸 859 62 1 Mar 2025 737th yzhs 🇩🇪 859 65 16 Jun 2022 737th rollershutter 859 65 9 Sep 2022 737th bac0id 859 65 26 Sep 2023 737th mossiegoat 859 65 8 Jun 2025 741st steffan-polygolf 859 73 23 Feb 2023 741st MWI-polygolf 859 73 6 Dec 2023 741st HumanoidCPU 859 73 7 May 2024 744th ovs-code 🇩🇪 859 133 8 Jul 2024 745th crizin 🇰🇷 859 136 9 Sep 2023 745th TheZwierzLF 🇵🇱 859 136 2 Jun 2025 747th ulucs 858 35 8 May 2022 747th bstrat 858 35 6 Jun 2024 747th wh3n3v3r 🇨🇿 858 35 18 Nov 2024 750th Andriamanitra 🇫🇮 858 67 26 Apr 2023 Prev 676–750 of 3,158 Next