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 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 Mandelbrot 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 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 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 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 Mandelbrot 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 76th Lydxn 🇨🇦 945 82 6 May 2022 76th JayXon 🇺🇸 945 82 9 May 2022 78th Lydxn 🇨🇦 943 51 17 Jan 2024 79th ovs-code 🇩🇪 943 61 5 Aug 2024 80th Lydxn 🇨🇦 941 59 6 May 2022 81st JayXon 🇺🇸 939 88 17 Oct 2022 81st acotis 939 88 10 days ago 83rd 2bular 938 32 17 Oct 2024 84th primo-ppcg 🇹🇭 936 49 5 May 2022 84th Lydxn 🇨🇦 936 49 8 May 2022 86th JayXon 🇺🇸 936 69 17 Oct 2022 86th Lydxn 🇨🇦 936 69 4 Feb 2023 88th Lydxn 🇨🇦 935 125 6 May 2022 88th JayXon 🇺🇸 935 125 9 May 2022 90th saito-ta 🇯🇵 934 49 13 May 2022 90th Lydxn 🇨🇦 934 49 28 May 2022 92nd inventshah 934 57 4 May 2022 92nd itsh01 934 57 17 May 2022 92nd Natanaelel 🇸🇪 934 57 16 Jun 2022 92nd Attero 🇸🇪 934 57 3 Aug 2022 92nd SirFireball3521 934 57 26 Jan 2023 92nd Kacarott 🇦🇺 934 57 24 Mar 2023 92nd nathanadams 🇳🇿 934 57 24 Apr 2023 92nd hacker112 🇸🇪 934 57 20 Jun 2024 92nd thisishowmymindworks 🇳🇴 934 57 28 Jun 2024 92nd Salutations45 934 57 18 Nov 2024 102nd Irratix 🇳🇱 934 83 4 May 2022 102nd nwellnhof 🇩🇪 934 83 4 May 2022 102nd ScottHamper 934 83 5 May 2022 102nd Romain-1 🇫🇷 934 83 1 Jun 2022 102nd Gaddy 🇫🇷 934 83 1 Jun 2022 102nd 5quiwyrm 934 83 4 Sep 2022 102nd Betuaredead 934 83 5 Jan 2023 102nd Yewzir 🇧🇪 934 83 12 Feb 2023 102nd btnlq 934 83 9 Mar 2023 102nd Adix-null 🇱🇹 934 83 17 May 2023 102nd Matgc04 934 83 19 May 2023 102nd AdrienHache 🇫🇷 934 83 8 Jun 2023 102nd gblikas 934 83 23 Jul 2023 102nd KrausRaus 🇺🇸 934 83 31 Jul 2023 102nd namelessiw 934 83 9 Apr 2025 102nd dokutan 934 83 9 Apr 2025 102nd m-tkach 🇺🇦 934 83 10 Apr 2025 102nd DialFrost 🇸🇬 934 83 10 Apr 2025 102nd Pecanolith 934 83 19 Apr 2025 102nd Tyrant7 934 83 19 Apr 2025 102nd Yax42 🇫🇷 934 83 19 Apr 2025 102nd MeWhenI 🇻🇦 934 83 11 hours ago 102nd sean-niemann 🇺🇸 934 83 11 hours ago 102nd stefangimmillaro 934 83 5 hours ago 126th canissimia 🇦🇶 933 50 5 May 2022 126th ovs-code 🇩🇪 933 50 7 May 2022 126th sisyphus-ppcg 🇦🇺 933 50 20 Feb 2023 126th Steffan153 🇫🇮 933 50 20 Jul 2024 126th sean-niemann 🇺🇸 933 50 11 days ago 131st ovs-code 🇩🇪 931 60 4 May 2022 131st m-tkach 🇺🇦 931 60 4 May 2022 131st btnlq 931 60 5 May 2022 131st orthoplex 🇨🇽 931 60 9 Oct 2022 131st FlorianCassayre 🇫🇷 931 60 7 Nov 2022 131st SirBogman 🇺🇸 931 60 20 Nov 2022 131st QuincyNash 🇺🇸 931 60 1 Dec 2022 131st Steffan153 🇫🇮 931 60 19 Dec 2022 131st SirFireball3521 931 60 26 Jan 2023 131st Shanethegamer 🇺🇸 931 60 25 May 2023 131st CornerMercury 🇬🇧 931 60 19 Jun 2023 131st ndren 931 60 2 Aug 2023 131st kg583 🇺🇸 931 60 14 Aug 2023 131st Just4FunCoder 931 60 17 Feb 2024 131st HumanoidCPU 931 60 6 May 2024 131st sean-niemann 🇺🇸 931 60 10 Jul 2024 131st pardouin 🇫🇷 931 60 11 Jul 2024 131st dokutan 931 60 15 Aug 2024 131st jatloe 931 60 26 Aug 2024 131st emgordon154 931 60 6 Sep 2024 Prev 76–150 of 3,113 Next