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 600th Shanethegamer 🇺🇸 875 72 1 Jun 2022 600th Steffan153 🇫🇮 875 72 10 Dec 2022 603rd ovs-code 🇩🇪 875 73 22 Jul 2023 604th dokutan 875 82 1 Jul 2024 605th Shanethegamer 🇺🇸 875 142 27 Mar 2025 605th DialFrost 🇸🇬 875 142 28 Mar 2025 605th emgordon154 875 142 10 Apr 2025 608th primo-ppcg 🇹🇭 875 198 24 days ago 609th Shanethegamer 🇺🇸 874 51 15 May 2023 610th rucin93 🇵🇱 873 57 4 Aug 2024 610th dokutan 873 57 9 Aug 2024 612th c0d3-4-F00d 🇩🇪 873 61 6 May 2022 612th jackkav 873 61 26 Jun 2022 612th TechNolaByte 873 61 6 Jul 2022 612th Heathcorp 🇦🇺 873 61 17 Jul 2022 612th C0de5mith 🇺🇸 873 61 3 Aug 2022 612th sebipopa 🇷🇴 873 61 18 Aug 2022 612th moikaturns 🇬🇧 873 61 25 Sep 2022 612th FlorianCassayre 🇫🇷 873 61 27 Sep 2022 612th Mazn3k 873 61 1 Feb 2023 612th tvcv901 873 61 22 Mar 2023 612th unfinishedprogram 873 61 19 Jul 2023 612th snoozingnewt 🇺🇸 873 61 23 Sep 2023 612th funnyboy-roks 873 61 9 May 2024 612th bac0id 873 61 29 Jun 2024 612th madex 🇩🇪 873 61 9 Jul 2024 612th cdesodt 873 61 10 Oct 2024 612th RobertHoeh 873 61 5 Apr 2025 612th LvLError 873 61 29 May 2025 612th Lv0Sys 🇵🇱 873 61 30 May 2025 612th miles-evan 873 61 35 mins ago 632nd NerdyMcNerd42 873 64 26 Oct 2022 632nd tpasfieldERAU 873 64 14 Nov 2022 632nd CheeseCake628 🇳🇴 873 64 6 Jan 2023 632nd adamnielson42 🇺🇸 873 64 25 Apr 2023 632nd nathsou 🇫🇷 873 64 2 Sep 2023 632nd zwxzwxzwx21 873 64 30 Jan 2024 632nd steffan-polygolf 873 64 8 Mar 2024 632nd Jacob385 873 64 4 Apr 2024 632nd gallium-gonzollium 873 64 26 Aug 2024 641st Grrisly 873 74 25 Mar 2024 642nd GrayJoKing 🇦🇺 873 84 19 Jun 2022 642nd primo-ppcg 🇹🇭 873 84 29 Jun 2022 644th althryenix 873 134 25 Jul 2022 644th MrGagnonHPS 873 134 1 Nov 2023 644th noescareno 873 134 31 May 2025 644th Schmitt-Very-Cool 873 134 16 Jun 2025 648th Shanethegamer 🇺🇸 873 152 9 Sep 2023 648th emgordon154 873 152 2 Oct 2024 648th DialFrost 🇸🇬 873 152 27 Oct 2024 651st HPWiz 🇳🇿 871 49 4 May 2022 651st JayXon 🇺🇸 871 49 5 May 2022 651st Steffan153 🇫🇮 871 49 10 Dec 2022 651st ovs-code 🇩🇪 871 49 24 Oct 2023 651st sean-niemann 🇺🇸 871 49 12 Jul 2024 656th Shanethegamer 🇺🇸 871 66 4 May 2022 656th scpchicken 🇵🇼 871 66 5 May 2022 656th sisyphus-ppcg 🇦🇺 871 66 6 May 2022 656th Natanaelel 🇸🇪 871 66 15 Jun 2022 656th Z-snails 871 66 27 Feb 2023 656th Jeremy-Stafford 871 66 27 Feb 2023 656th alomiF 871 66 1 Sep 2023 656th btnlq 871 66 17 Oct 2023 664th johnnythedoggie 871 72 13 May 2022 664th kaascevich 871 72 27 days ago 666th DialFrost 🇸🇬 871 73 3 Jun 2025 667th c0d3-4-F00d 🇩🇪 871 89 5 May 2022 667th fkantelberg 871 89 15 Jul 2023 667th bac0id 871 89 26 Sep 2023 667th TRexOnGit 871 89 16 Feb 2024 667th arcpolaris 871 89 18 Nov 2024 672nd dokutan 870 62 28 Apr 2025 673rd inventshah 870 97 6 May 2022 673rd roupiq 🇵🇱 870 97 22 Nov 2023 675th DialFrost 🇸🇬 869 86 24 Oct 2024 Prev 601–675 of 3,207 Next