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 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 Hilbert Curve 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 Knight 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 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 Knight 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 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 Hilbert Curve 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 135th pardouin 🇫🇷 931 60 11 Jul 2024 135th dokutan 931 60 15 Aug 2024 135th jatloe 931 60 26 Aug 2024 135th emgordon154 931 60 6 Sep 2024 135th starfihs 931 60 12 Oct 2024 135th CaedenHarper 🇨🇦 931 60 3 Nov 2024 135th 5quiwyrm 931 60 12 Nov 2024 135th plcc0 931 60 26 Mar 2025 135th yujh-yujh 🇬🇸 931 60 28 Mar 2025 135th albanian-laundromat 931 60 12 Apr 2025 135th Mukundan314 931 60 17 Apr 2025 162nd canissimia 🇦🇶 930 51 6 May 2022 162nd Lydxn 🇨🇦 930 51 6 May 2022 162nd primo-ppcg 🇹🇭 930 51 6 May 2022 162nd pardouin 🇫🇷 930 51 12 Apr 2025 166th primo-ppcg 🇹🇭 930 58 13 Nov 2022 166th clockworknazo 930 58 15 Nov 2022 166th Lydxn 🇨🇦 930 58 7 Feb 2023 166th xsot 🇸🇬 930 58 28 Jun 2024 166th Salutations45 930 58 18 Dec 2024 171st grey0ut 929 48 8 Apr 2025 172nd m-tkach 🇺🇦 928 91 5 May 2022 172nd 09cf 928 91 4 Oct 2023 174th stefangimmillaro 928 126 4 May 2022 174th Irratix 🇳🇱 928 126 4 May 2022 174th MeWhenI 🇻🇦 928 126 4 May 2022 174th janbehrens 🇩🇪 928 126 4 May 2022 174th shellbertt 🇨🇦 928 126 4 May 2022 174th inventshah 928 126 4 May 2022 174th m-tkach 🇺🇦 928 126 4 May 2022 174th sean-niemann 🇺🇸 928 126 4 May 2022 174th nwellnhof 🇩🇪 928 126 4 May 2022 174th Shanethegamer 🇺🇸 928 126 4 May 2022 174th ScottHamper 928 126 5 May 2022 174th ovs-code 🇩🇪 928 126 5 May 2022 174th 5quiwyrm 928 126 4 Sep 2022 174th KrausRaus 🇺🇸 928 126 9 Sep 2022 174th Betuaredead 928 126 5 Jan 2023 174th annaproxy 928 126 7 Jan 2023 174th Yewzir 🇧🇪 928 126 12 Feb 2023 174th Jacob385 928 126 4 Mar 2024 174th dokutan 928 126 17 Mar 2024 174th eMGeeneer 928 126 15 Jun 2024 174th mrondon8 928 126 2 Dec 2024 174th plastic-bottle 928 126 20 hours ago 196th GolfingSuccess 🇬🇷 926 49 12 Aug 2024 196th Shanethegamer 🇺🇸 926 49 12 Aug 2024 196th Steffan153 🇫🇮 926 49 12 Aug 2024 196th MeWhenI 🇻🇦 926 49 13 Aug 2024 196th DialFrost 🇸🇬 926 49 13 Aug 2024 196th GrayJoKing 🇦🇺 926 49 15 Aug 2024 196th btnlq 926 49 16 Aug 2024 196th emgordon154 926 49 19 Aug 2024 196th ovs-code 🇩🇪 926 49 19 Aug 2024 196th mousetail 🇳🇱 926 49 13 Sep 2024 196th lynn 926 49 20 Dec 2024 196th weeble 926 49 20 Dec 2024 196th sean-niemann 🇺🇸 926 49 11 Jan 2025 209th emplv 🇱🇻 926 60 5 May 2022 209th GrayJoKing 🇦🇺 926 60 6 May 2022 209th targrik 926 60 24 Dec 2024 209th xsot 🇸🇬 926 60 1 May 2025 213th ovs-code 🇩🇪 925 52 16 Jan 2024 213th kg583 🇺🇸 925 52 24 Jan 2024 213th Shanethegamer 🇺🇸 925 52 24 Mar 2024 213th pardouin 🇫🇷 925 52 11 Jul 2024 213th Steffan153 🇫🇮 925 52 17 Aug 2024 213th sean-niemann 🇺🇸 925 52 24 Jan 2025 219th Lydxn 🇨🇦 924 38 4 May 2022 219th GrayJoKing 🇦🇺 924 38 5 May 2022 219th Steffan153 🇫🇮 924 38 16 Dec 2022 219th ovs-code 🇩🇪 924 38 30 Dec 2023 223rd GrayJoKing 🇦🇺 924 70 13 Jul 2024 223rd FlyingPenguin223 924 70 4 Oct 2024 223rd jipsong 🇩🇪 924 70 5 Apr 2025 Prev 151–225 of 3,261 Next