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 222nd ertz1ertz 923 84 13 Sep 2024 222nd Grabnukebomb 923 84 13 Sep 2024 222nd Shanethegamer 🇺🇸 923 84 9 Apr 2025 222nd HumanoidCPU 923 84 10 Apr 2025 222nd annaproxy 923 84 11 Apr 2025 222nd Re-Adventures 🇮🇳 923 84 15 Apr 2025 222nd janbehrens 🇩🇪 923 84 17 Apr 2025 222nd fuzzylojik-golf 🇺🇸 923 84 28 May 2025 234th sean-niemann 🇺🇸 922 54 6 Aug 2024 234th Steffan153 🇫🇮 922 54 6 Aug 2024 234th lukegustafson 🇺🇸 922 54 7 Aug 2024 234th pardouin 🇫🇷 922 54 8 Aug 2024 234th Lydxn 🇨🇦 922 54 9 Aug 2024 234th JayXon 🇺🇸 922 54 9 Aug 2024 240th Lydxn 🇨🇦 922 70 17 Oct 2022 240th JayXon 🇺🇸 922 70 17 Oct 2022 242nd ovs-code 🇩🇪 921 60 9 Oct 2023 242nd GrayJoKing 🇦🇺 921 60 11 Oct 2023 242nd Lydxn 🇨🇦 921 60 11 Oct 2023 242nd GolfingSuccess 🇬🇷 921 60 16 Nov 2023 242nd Steffan153 🇫🇮 921 60 28 Jan 2024 242nd JayXon 🇺🇸 921 60 29 Jan 2024 242nd rucin93 🇵🇱 921 60 10 Jul 2024 242nd sean-niemann 🇺🇸 921 60 10 Jul 2024 250th MeWhenI 🇻🇦 921 68 23 Feb 2023 250th JayXon 🇺🇸 921 68 4 Mar 2025 252nd Steffan153 🇫🇮 920 67 19 Aug 2024 252nd JayXon 🇺🇸 920 67 19 Aug 2024 254th Luca2812 920 127 12 Dec 2022 254th plastic-bottle 920 127 13 Sep 2023 254th h3ra993huskp 🇯🇵 920 127 17 Sep 2023 254th tigerdan2 🇩🇪 920 127 19 Dec 2023 258th Lydxn 🇨🇦 919 107 6 May 2022 258th JayXon 🇺🇸 919 107 9 May 2022 260th sisyphus-ppcg 🇦🇺 918 50 31 Jan 2023 260th saito-ta 🇯🇵 918 50 12 Dec 2024 262nd uiamn 918 58 6 Sep 2022 262nd 5quiwyrm 918 58 29 Sep 2022 262nd alasdair-greenland 918 58 13 Jan 2023 265th Lydxn 🇨🇦 918 90 6 May 2022 266th primo-ppcg 🇹🇭 917 24 10 Dec 2022 267th sean-niemann 🇺🇸 917 66 29 May 2025 268th Herbert00709 🇵🇱 917 92 17 Nov 2023 268th 4QT0R 917 92 23 Nov 2023 268th ovs-code 🇩🇪 917 92 3 Jun 2024 271st btnlq 915 59 6 Nov 2022 272nd Irratix 🇳🇱 915 61 7 May 2022 272nd TFeld00 🇩🇰 915 61 17 May 2022 272nd hallvabo 🇳🇴 915 61 4 Sep 2022 272nd DialFrost 🇸🇬 915 61 19 Dec 2022 272nd anter69 🇭🇺 915 61 19 Dec 2022 272nd Alex-x90 🇺🇸 915 61 27 Dec 2022 272nd commandblockguy 🇺🇸 915 61 22 Aug 2023 272nd fgrosshans 🇫🇷 915 61 22 Jul 2024 272nd duckyluuk 🇳🇱 915 61 15 Aug 2024 272nd rucin93 🇵🇱 915 61 31 May 2025 272nd fuzzylojik-golf 🇺🇸 915 61 25 days ago 283rd nwellnhof 🇩🇪 914 51 4 May 2022 283rd primo-ppcg 🇹🇭 914 51 6 May 2022 283rd radarek 🇵🇱 914 51 8 May 2022 283rd janlelis 914 51 10 May 2022 283rd Natanaelel 🇸🇪 914 51 2 Jun 2022 288th xnor-gate 913 63 20 Jan 2025 289th JayXon 🇺🇸 913 69 5 Apr 2023 289th Lydxn 🇨🇦 913 69 9 Apr 2023 291st MichalMarsalek 🇨🇿 913 71 5 May 2022 291st Lydxn 🇨🇦 913 71 7 May 2022 291st GrayJoKing 🇦🇺 913 71 8 May 2022 291st JayXon 🇺🇸 913 71 8 May 2022 291st Steffan153 🇫🇮 913 71 9 Mar 2023 291st Shanethegamer 🇺🇸 913 71 15 May 2023 291st MeWhenI 🇻🇦 913 71 8 Aug 2023 291st sean-niemann 🇺🇸 913 71 9 Jan 2025 299th bac0id 913 128 29 Jun 2024 300th Steffan153 🇫🇮 912 76 15 May 2023 Prev 226–300 of 3,148 Next