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 142nd Yax42 🇫🇷 933 89 429ms 18 days ago 142nd stefangimmillaro 933 89 445ms 16 days ago 142nd CaedenHarper 🇨🇦 933 89 421ms 12 days ago 154th canissimia 🇦🇶 931 51 6 May 2022 154th Lydxn 🇨🇦 931 51 6 May 2022 154th primo-ppcg 🇹🇭 931 51 6 May 2022 154th pardouin 🇫🇷 931 51 12 Apr 2025 158th primo-ppcg 🇹🇭 931 58 5ms 13 Nov 2022 158th clockworknazo 931 58 8ms 15 Nov 2022 158th Lydxn 🇨🇦 931 58 5ms 7 Feb 2023 158th xsot 🇸🇬 931 58 6ms 28 Jun 2024 158th Salutations45 931 58 8ms 18 Dec 2024 163rd ovs-code 🇩🇪 931 60 19ms 4 May 2022 163rd m-tkach 🇺🇦 931 60 18ms 4 May 2022 163rd btnlq 931 60 24ms 5 May 2022 163rd orthoplex 🇨🇽 931 60 24ms 9 Oct 2022 163rd FlorianCassayre 🇫🇷 931 60 24ms 7 Nov 2022 163rd SirBogman 🇺🇸 931 60 20ms 20 Nov 2022 163rd QuincyNash 🇺🇸 931 60 21ms 1 Dec 2022 163rd Steffan153 🇫🇮 931 60 19ms 19 Dec 2022 163rd SirFireball3521 931 60 17ms 26 Jan 2023 163rd Shanethegamer 🇺🇸 931 60 24ms 25 May 2023 163rd CornerMercury 🇬🇧 931 60 19ms 19 Jun 2023 163rd ndren 931 60 24ms 2 Aug 2023 163rd kg583 🇺🇸 931 60 64ms 14 Aug 2023 163rd Just4FunCoder 931 60 23ms 17 Feb 2024 163rd HumanoidCPU 931 60 21ms 6 May 2024 163rd sean-niemann 🇺🇸 931 60 22ms 10 Jul 2024 163rd pardouin 🇫🇷 931 60 21ms 11 Jul 2024 163rd dokutan 931 60 20ms 15 Aug 2024 163rd jatloe 931 60 29ms 26 Aug 2024 163rd emgordon154 931 60 20ms 6 Sep 2024 163rd starfihs 931 60 18ms 12 Oct 2024 163rd CaedenHarper 🇨🇦 931 60 20ms 3 Nov 2024 163rd 5quiwyrm 931 60 19ms 12 Nov 2024 163rd plcc0 931 60 18ms 26 Mar 2025 163rd yujh-yujh 🇬🇸 931 60 19ms 28 Mar 2025 163rd albanian-laundromat 931 60 19ms 12 Apr 2025 163rd Mukundan314 931 60 23ms 17 Apr 2025 163rd fuzzylojik-golf 🇺🇸 931 60 22ms 1 Sep 2025 191st grey0ut 929 48 2,417ms 8 Apr 2025 192nd m-tkach 🇺🇦 929 91 63ms 5 May 2022 192nd 09cf 929 91 63ms 4 Oct 2023 194th emplv 🇱🇻 927 60 5 May 2022 194th GrayJoKing 🇦🇺 927 60 6 May 2022 194th targrik 927 60 9ms 24 Dec 2024 194th xsot 🇸🇬 927 60 1 May 2025 198th Lydxn 🇨🇦 926 38 4 May 2022 198th GrayJoKing 🇦🇺 926 38 5 May 2022 198th Steffan153 🇫🇮 926 38 16 Dec 2022 198th ovs-code 🇩🇪 926 38 30 Dec 2023 202nd GolfingSuccess 🇬🇷 926 49 40ms 12 Aug 2024 202nd Shanethegamer 🇺🇸 926 49 40ms 12 Aug 2024 202nd Steffan153 🇫🇮 926 49 40ms 12 Aug 2024 202nd MeWhenI 🇻🇦 926 49 46ms 13 Aug 2024 202nd DialFrost 🇸🇬 926 49 48ms 13 Aug 2024 202nd GrayJoKing 🇦🇺 926 49 68ms 15 Aug 2024 202nd btnlq 926 49 64ms 16 Aug 2024 202nd emgordon154 926 49 47ms 19 Aug 2024 202nd ovs-code 🇩🇪 926 49 43ms 19 Aug 2024 202nd mousetail 🇳🇱 926 49 60ms 13 Sep 2024 202nd lynn 926 49 43ms 20 Dec 2024 202nd weeble 926 49 46ms 20 Dec 2024 202nd sean-niemann 🇺🇸 926 49 42ms 11 Jan 2025 215th ovs-code 🇩🇪 926 52 918ms 16 Jan 2024 215th kg583 🇺🇸 926 52 461ms 24 Jan 2024 215th Shanethegamer 🇺🇸 926 52 446ms 24 Mar 2024 215th pardouin 🇫🇷 926 52 487ms 11 Jul 2024 215th Steffan153 🇫🇮 926 52 496ms 17 Aug 2024 215th sean-niemann 🇺🇸 926 52 502ms 24 Jan 2025 221st MeWhenI 🇻🇦 925 68 105ms 23 Feb 2023 221st JayXon 🇺🇸 925 68 104ms 4 Mar 2025 223rd Lydxn 🇨🇦 924 70 106ms 17 Oct 2022 223rd JayXon 🇺🇸 924 70 110ms 17 Oct 2022 223rd GrayJoKing 🇦🇺 924 70 3ms 13 Jul 2024 First Prev 151–225 of 3,385 Next Last