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 147th FlorianCassayre 🇫🇷 931 60 7 Nov 2022 147th SirBogman 🇺🇸 931 60 20 Nov 2022 147th QuincyNash 🇺🇸 931 60 1 Dec 2022 147th Steffan153 🇫🇮 931 60 19 Dec 2022 147th SirFireball3521 931 60 26 Jan 2023 147th Shanethegamer 🇺🇸 931 60 25 May 2023 147th CornerMercury 🇬🇧 931 60 19 Jun 2023 147th ndren 931 60 2 Aug 2023 147th kg583 🇺🇸 931 60 14 Aug 2023 147th Just4FunCoder 931 60 17 Feb 2024 147th HumanoidCPU 931 60 6 May 2024 147th sean-niemann 🇺🇸 931 60 10 Jul 2024 147th pardouin 🇫🇷 931 60 11 Jul 2024 147th dokutan 931 60 15 Aug 2024 147th jatloe 931 60 26 Aug 2024 147th emgordon154 931 60 6 Sep 2024 147th starfihs 931 60 12 Oct 2024 147th CaedenHarper 🇨🇦 931 60 3 Nov 2024 147th 5quiwyrm 931 60 12 Nov 2024 147th plcc0 931 60 26 Mar 2025 147th yujh-yujh 🇬🇸 931 60 28 Mar 2025 147th albanian-laundromat 931 60 12 Apr 2025 147th Mukundan314 931 60 17 Apr 2025 147th fuzzylojik-golf 🇺🇸 931 60 24 days ago 175th canissimia 🇦🇶 930 51 6 May 2022 175th Lydxn 🇨🇦 930 51 6 May 2022 175th primo-ppcg 🇹🇭 930 51 6 May 2022 175th pardouin 🇫🇷 930 51 12 Apr 2025 179th grey0ut 929 48 8 Apr 2025 180th m-tkach 🇺🇦 928 91 5 May 2022 180th 09cf 928 91 4 Oct 2023 182nd Lydxn 🇨🇦 926 38 4 May 2022 182nd GrayJoKing 🇦🇺 926 38 5 May 2022 182nd Steffan153 🇫🇮 926 38 16 Dec 2022 182nd ovs-code 🇩🇪 926 38 30 Dec 2023 186th GolfingSuccess 🇬🇷 926 49 12 Aug 2024 186th Shanethegamer 🇺🇸 926 49 12 Aug 2024 186th Steffan153 🇫🇮 926 49 12 Aug 2024 186th MeWhenI 🇻🇦 926 49 13 Aug 2024 186th DialFrost 🇸🇬 926 49 13 Aug 2024 186th GrayJoKing 🇦🇺 926 49 15 Aug 2024 186th btnlq 926 49 16 Aug 2024 186th emgordon154 926 49 19 Aug 2024 186th ovs-code 🇩🇪 926 49 19 Aug 2024 186th mousetail 🇳🇱 926 49 13 Sep 2024 186th lynn 926 49 20 Dec 2024 186th weeble 926 49 20 Dec 2024 186th sean-niemann 🇺🇸 926 49 11 Jan 2025 199th emplv 🇱🇻 926 60 5 May 2022 199th GrayJoKing 🇦🇺 926 60 6 May 2022 199th targrik 926 60 24 Dec 2024 199th xsot 🇸🇬 926 60 1 May 2025 203rd ovs-code 🇩🇪 925 52 16 Jan 2024 203rd kg583 🇺🇸 925 52 24 Jan 2024 203rd Shanethegamer 🇺🇸 925 52 24 Mar 2024 203rd pardouin 🇫🇷 925 52 11 Jul 2024 203rd Steffan153 🇫🇮 925 52 17 Aug 2024 203rd sean-niemann 🇺🇸 925 52 24 Jan 2025 209th MeWhenI 🇻🇦 925 68 23 Feb 2023 209th JayXon 🇺🇸 925 68 4 Mar 2025 211th GrayJoKing 🇦🇺 924 70 13 Jul 2024 211th FlyingPenguin223 924 70 4 Oct 2024 211th jipsong 🇩🇪 924 70 5 Apr 2025 214th Lydxn 🇨🇦 923 70 17 Oct 2022 214th JayXon 🇺🇸 923 70 17 Oct 2022 216th roavin 923 84 23 Jun 2022 216th tkr-sh 🇫🇷 923 84 20 Aug 2022 216th Nickmiste 923 84 9 Nov 2022 216th postie77 923 84 19 May 2023 216th ertz1ertz 923 84 13 Sep 2024 216th Grabnukebomb 923 84 13 Sep 2024 216th Shanethegamer 🇺🇸 923 84 9 Apr 2025 216th HumanoidCPU 923 84 10 Apr 2025 216th annaproxy 923 84 11 Apr 2025 216th Re-Adventures 🇮🇳 923 84 15 Apr 2025 Prev 151–225 of 3,325 Next