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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth 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 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 Erlang 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 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 Erlang 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 76th GrayJoKing 🇦🇺 947 59 15 Nov 2022 77th Lydxn 🇨🇦 946 82 6 May 2022 77th JayXon 🇺🇸 946 82 9 May 2022 79th Lydxn 🇨🇦 943 51 17 Jan 2024 80th ovs-code 🇩🇪 943 61 5 Aug 2024 81st Lydxn 🇨🇦 942 59 6 May 2022 82nd JayXon 🇺🇸 942 88 17 hours ago 83rd JayXon 🇺🇸 941 88 17 Oct 2022 83rd acotis 941 88 9 Jun 2025 85th 2bular 939 32 17 Oct 2024 86th primo-ppcg 🇹🇭 938 49 5 May 2022 86th Lydxn 🇨🇦 938 49 8 May 2022 88th JayXon 🇺🇸 938 69 17 Oct 2022 88th Lydxn 🇨🇦 938 69 4 Feb 2023 90th inventshah 935 57 4 May 2022 90th itsh01 935 57 17 May 2022 90th Natanaelel 🇸🇪 935 57 16 Jun 2022 90th Attero 🇸🇪 935 57 3 Aug 2022 90th SirFireball3521 935 57 26 Jan 2023 90th Kacarott 🇦🇺 935 57 24 Mar 2023 90th nathanadams 🇳🇿 935 57 24 Apr 2023 90th hacker112 🇸🇪 935 57 20 Jun 2024 90th thisishowmymindworks 🇳🇴 935 57 28 Jun 2024 90th Salutations45 935 57 18 Nov 2024 90th daniel-cardone 935 57 3 Jul 2025 101st saito-ta 🇯🇵 934 49 13 May 2022 101st Lydxn 🇨🇦 934 49 28 May 2022 103rd canissimia 🇦🇶 934 50 5 May 2022 103rd ovs-code 🇩🇪 934 50 7 May 2022 103rd sisyphus-ppcg 🇦🇺 934 50 20 Feb 2023 103rd Steffan153 🇫🇮 934 50 20 Jul 2024 103rd sean-niemann 🇺🇸 934 50 9 Jun 2025 103rd pardouin 🇫🇷 934 50 22 Aug 2025 109th Irratix 🇳🇱 934 83 4 May 2022 109th nwellnhof 🇩🇪 934 83 4 May 2022 109th ScottHamper 934 83 5 May 2022 109th Romain-1 🇫🇷 934 83 1 Jun 2022 109th Gaddy 🇫🇷 934 83 1 Jun 2022 109th 5quiwyrm 934 83 4 Sep 2022 109th Betuaredead 934 83 5 Jan 2023 109th Yewzir 🇧🇪 934 83 12 Feb 2023 109th btnlq 934 83 9 Mar 2023 109th Adix-null 🇱🇹 934 83 17 May 2023 109th Matgc04 934 83 19 May 2023 109th AdrienHache 🇫🇷 934 83 8 Jun 2023 109th gblikas 934 83 23 Jul 2023 109th KrausRaus 🇺🇸 934 83 31 Jul 2023 109th namelessiw 934 83 9 Apr 2025 109th dokutan 934 83 9 Apr 2025 109th m-tkach 🇺🇦 934 83 10 Apr 2025 109th DialFrost 🇸🇬 934 83 10 Apr 2025 109th Pecanolith 934 83 19 Apr 2025 109th Tyrant7 934 83 19 Apr 2025 109th Yax42 🇫🇷 934 83 19 Apr 2025 109th MeWhenI 🇻🇦 934 83 19 Jun 2025 109th sean-niemann 🇺🇸 934 83 20 Jun 2025 109th stefangimmillaro 934 83 20 Jun 2025 109th tomh1012 934 83 28 Aug 2025 109th fuzzylojik-golf 🇺🇸 934 83 17 days ago 135th DialFrost 🇸🇬 932 89 21 hours ago 135th ovs-code 🇩🇪 932 89 21 hours ago 135th dokutan 932 89 19 hours ago 135th sean-niemann 🇺🇸 932 89 18 hours ago 135th Shanethegamer 🇺🇸 932 89 16 hours ago 135th nwellnhof 🇩🇪 932 89 4 hours ago 141st primo-ppcg 🇹🇭 931 58 13 Nov 2022 141st clockworknazo 931 58 15 Nov 2022 141st Lydxn 🇨🇦 931 58 7 Feb 2023 141st xsot 🇸🇬 931 58 28 Jun 2024 141st Salutations45 931 58 18 Dec 2024 146th ovs-code 🇩🇪 931 60 4 May 2022 146th m-tkach 🇺🇦 931 60 4 May 2022 146th btnlq 931 60 5 May 2022 146th orthoplex 🇨🇽 931 60 9 Oct 2022 146th FlorianCassayre 🇫🇷 931 60 7 Nov 2022 Prev 76–150 of 3,319 Next