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 Trinomial Triangle 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 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 Trinomial Triangle 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 Turtle Tutorial # Golfer Points Chars Time Submitted 141st stefangimmillaro 933 89 15 days ago 141st CaedenHarper 🇨🇦 933 89 421ms 12 days ago 153rd canissimia 🇦🇶 931 51 6 May 2022 153rd Lydxn 🇨🇦 931 51 6 May 2022 153rd primo-ppcg 🇹🇭 931 51 6 May 2022 153rd pardouin 🇫🇷 931 51 12 Apr 2025 157th primo-ppcg 🇹🇭 931 58 13 Nov 2022 157th clockworknazo 931 58 15 Nov 2022 157th Lydxn 🇨🇦 931 58 7 Feb 2023 157th xsot 🇸🇬 931 58 28 Jun 2024 157th Salutations45 931 58 18 Dec 2024 162nd ovs-code 🇩🇪 931 60 4 May 2022 162nd m-tkach 🇺🇦 931 60 4 May 2022 162nd btnlq 931 60 5 May 2022 162nd orthoplex 🇨🇽 931 60 9 Oct 2022 162nd FlorianCassayre 🇫🇷 931 60 7 Nov 2022 162nd SirBogman 🇺🇸 931 60 20 Nov 2022 162nd QuincyNash 🇺🇸 931 60 1 Dec 2022 162nd Steffan153 🇫🇮 931 60 19 Dec 2022 162nd SirFireball3521 931 60 26 Jan 2023 162nd Shanethegamer 🇺🇸 931 60 25 May 2023 162nd CornerMercury 🇬🇧 931 60 19ms 19 Jun 2023 162nd ndren 931 60 2 Aug 2023 162nd kg583 🇺🇸 931 60 14 Aug 2023 162nd Just4FunCoder 931 60 17 Feb 2024 162nd HumanoidCPU 931 60 6 May 2024 162nd sean-niemann 🇺🇸 931 60 10 Jul 2024 162nd pardouin 🇫🇷 931 60 11 Jul 2024 162nd dokutan 931 60 15 Aug 2024 162nd jatloe 931 60 26 Aug 2024 162nd emgordon154 931 60 6 Sep 2024 162nd starfihs 931 60 12 Oct 2024 162nd CaedenHarper 🇨🇦 931 60 3 Nov 2024 162nd 5quiwyrm 931 60 12 Nov 2024 162nd plcc0 931 60 26 Mar 2025 162nd yujh-yujh 🇬🇸 931 60 28 Mar 2025 162nd albanian-laundromat 931 60 12 Apr 2025 162nd Mukundan314 931 60 17 Apr 2025 162nd fuzzylojik-golf 🇺🇸 931 60 1 Sep 2025 190th grey0ut 929 48 2,417ms 8 Apr 2025 191st m-tkach 🇺🇦 929 91 5 May 2022 191st 09cf 929 91 4 Oct 2023 193rd emplv 🇱🇻 927 60 5 May 2022 193rd GrayJoKing 🇦🇺 927 60 6 May 2022 193rd targrik 927 60 9ms 24 Dec 2024 193rd xsot 🇸🇬 927 60 1 May 2025 197th Lydxn 🇨🇦 926 38 4 May 2022 197th GrayJoKing 🇦🇺 926 38 5 May 2022 197th Steffan153 🇫🇮 926 38 16 Dec 2022 197th ovs-code 🇩🇪 926 38 30 Dec 2023 201st GolfingSuccess 🇬🇷 926 49 12 Aug 2024 201st Shanethegamer 🇺🇸 926 49 12 Aug 2024 201st Steffan153 🇫🇮 926 49 12 Aug 2024 201st MeWhenI 🇻🇦 926 49 13 Aug 2024 201st DialFrost 🇸🇬 926 49 13 Aug 2024 201st GrayJoKing 🇦🇺 926 49 15 Aug 2024 201st btnlq 926 49 16 Aug 2024 201st emgordon154 926 49 19 Aug 2024 201st ovs-code 🇩🇪 926 49 19 Aug 2024 201st mousetail 🇳🇱 926 49 13 Sep 2024 201st lynn 926 49 20 Dec 2024 201st weeble 926 49 20 Dec 2024 201st sean-niemann 🇺🇸 926 49 11 Jan 2025 214th ovs-code 🇩🇪 926 52 16 Jan 2024 214th kg583 🇺🇸 926 52 24 Jan 2024 214th Shanethegamer 🇺🇸 926 52 24 Mar 2024 214th pardouin 🇫🇷 926 52 11 Jul 2024 214th Steffan153 🇫🇮 926 52 17 Aug 2024 214th sean-niemann 🇺🇸 926 52 24 Jan 2025 220th MeWhenI 🇻🇦 925 68 23 Feb 2023 220th JayXon 🇺🇸 925 68 4 Mar 2025 222nd Lydxn 🇨🇦 924 70 106ms 17 Oct 2022 222nd JayXon 🇺🇸 924 70 110ms 17 Oct 2022 222nd GrayJoKing 🇦🇺 924 70 13 Jul 2024 222nd FlyingPenguin223 924 70 4 Oct 2024 First Prev 151–225 of 3,383 Next Last