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 301st CaedenHarper 🇨🇦 912 91 2 days ago 302nd primo-ppcg 🇹🇭 911 61 6 May 2022 302nd sisyphus-ppcg 🇦🇺 911 61 14 Jul 2022 304th Lydxn 🇨🇦 911 70 7 May 2022 304th JayXon 🇺🇸 911 70 7 May 2022 306th Steffan153 🇫🇮 911 71 14 Oct 2022 306th Shanethegamer 🇺🇸 911 71 15 Oct 2022 306th stefangimmillaro 911 71 16 Oct 2022 306th MeWhenI 🇻🇦 911 71 16 Oct 2022 306th Steffan153 🇫🇮 911 71 10 Dec 2022 306th synt7x 🇺🇸 911 71 7 Jul 2025 312th annaproxy 911 78 13 Jan 2023 312th IanUtley 911 78 12 Nov 2023 312th GrayJoKing 🇦🇺 911 78 28 Nov 2023 312th edsrzf 🇳🇿 911 78 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nai62 907 68 27 Aug 2022 344th Lydxn 🇨🇦 907 81 1 Apr 2023 345th GrayJoKing 🇦🇺 906 74 1 Nov 2023 346th ovs-code 🇩🇪 905 67 13 Dec 2022 346th Steffan153 🇫🇮 905 67 18 Dec 2022 346th Lydxn 🇨🇦 905 67 4 Feb 2023 346th DialFrost 🇸🇬 905 67 17 Mar 2025 350th ovs-code 🇩🇪 905 75 12 Sep 2024 350th Kacarott 🇦🇺 905 75 13 Sep 2024 352nd lynn 905 78 5 May 2022 353rd Lydxn 🇨🇦 905 107 6 May 2022 353rd CaedenHarper 🇨🇦 905 107 22 hours ago 355th KrausRaus 🇺🇸 903 59 4 May 2022 355th voytxt 🇨🇿 903 59 4 May 2022 355th KingSkyrock 🇺🇸 903 59 18 May 2022 355th ZakkkkAttackkkk 🇵🇭 903 59 14 Jul 2022 355th aksyristos 903 59 28 Oct 2022 355th nstearns96 🇬🇧 903 59 28 Nov 2022 355th janbehrens 🇩🇪 903 59 17 May 2023 355th Shanethegamer 🇺🇸 903 59 25 May 2023 355th Maznek 903 59 26 Jun 2023 355th SpiritAxolotl 🇺🇸 903 59 20 Mar 2024 355th Andrey-Plotnikov 903 59 19 May 2024 355th emgordon154 903 59 5 Aug 2024 355th duckyluuk 🇳🇱 903 59 3 Oct 2024 355th lifthrasiir 🇰🇷 903 59 23 Nov 2024 355th fuzzylojik-golf 🇺🇸 903 59 1 Jun 2025 355th acollett89 903 59 17 Jun 2025 355th iczelia 🇩🇪 903 59 12 days ago 372nd GrayJoKing 🇦🇺 903 71 10 Aug 2023 373rd marshallward 🇺🇸 903 83 10 May 2022 374th primo-ppcg 🇹🇭 903 93 7 May 2022 374th AlephSquirrel 903 93 21 Jan 2023 First Prev 301–375 of 3,358 Next Last