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 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 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 Mandelbrot 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 Mandelbrot 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 1st Lydxn 🇨🇦 1,000 22 12 Sep 2022 2nd khvdm 980 57 15 Sep 2024 3rd ovs-code 🇩🇪 968 31 8 Mar 2023 4th Irratix 🇳🇱 968 55 4 May 2022 4th nwellnhof 🇩🇪 968 55 4 May 2022 4th m-tkach 🇺🇦 968 55 5 May 2022 4th Lydxn 🇨🇦 968 55 5 May 2022 4th JayXon 🇺🇸 968 55 5 May 2022 4th emplv 🇱🇻 968 55 5 May 2022 4th prplz 🇦🇺 968 55 5 May 2022 4th primo-ppcg 🇹🇭 968 55 5 May 2022 4th GrayJoKing 🇦🇺 968 55 6 May 2022 4th ovs-code 🇩🇪 968 55 6 May 2022 4th sisyphus-ppcg 🇦🇺 968 55 7 May 2022 4th pavelb 968 55 8 Aug 2022 4th stefangimmillaro 968 55 2 Oct 2022 4th MeWhenI 🇻🇦 968 55 2 Oct 2022 4th Steffan153 🇫🇮 968 55 12 Nov 2022 4th Bubbler-4 968 55 14 Nov 2022 4th lukegustafson 🇺🇸 968 55 14 Nov 2023 4th trinityy-7 968 55 17 Dec 2023 4th xsot 🇸🇬 968 55 1 Jun 2024 4th vlpx 🇫🇮 968 55 18 Jun 2024 4th rucin93 🇵🇱 968 55 10 Jul 2024 4th sean-niemann 🇺🇸 968 55 10 Jul 2024 4th pardouin 🇫🇷 968 55 7 Aug 2024 4th Liniarc 968 55 11 Dec 2024 4th targrik 968 55 10 Feb 2025 4th helbling 🇨🇭 968 55 12 May 2025 30th Lydxn 🇨🇦 963 58 4 May 2022 30th JayXon 🇺🇸 963 58 7 Mar 2023 32nd Lydxn 🇨🇦 963 64 21 Dec 2023 32nd rhdqor213 963 64 10 Aug 2024 34th Lydxn 🇨🇦 952 49 4 May 2022 34th JayXon 🇺🇸 952 49 17 Oct 2022 34th GrayJoKing 🇦🇺 952 49 15 Nov 2022 37th akshatj27 🇦🇶 951 56 4 May 2022 37th didion0 🇺🇸 951 56 5 May 2022 37th NewDefectus 🇮🇱 951 56 6 May 2022 37th lynn 951 56 6 May 2022 37th uttumuttu 🇫🇮 951 56 24 May 2022 37th jared-hughes 951 56 6 Jul 2022 37th 051 🇸🇬 951 56 8 Aug 2022 37th BambooleanLogic 🇸🇪 951 56 12 Oct 2022 37th makinde 951 56 21 Oct 2022 37th DialFrost 🇸🇬 951 56 14 Nov 2022 37th AlephSquirrel 951 56 15 Feb 2023 37th dmrichwa 🇺🇸 951 56 10 Jul 2023 37th tayloia 🇬🇧 951 56 10 Jul 2023 37th Argeento 🇵🇱 951 56 25 Aug 2023 37th weliveinhell 🇭🇹 951 56 2 Oct 2023 37th coreynash 951 56 6 Oct 2023 37th dylanarmstrong 951 56 10 Dec 2023 37th two-bad 🇬🇧 951 56 23 Feb 2024 37th mehbark 951 56 27 Jul 2024 37th madeforlosers 951 56 4 Nov 2024 37th XenThe 951 56 4 days ago 58th ovs-code 🇩🇪 950 34 7 Mar 2023 59th nwellnhof 🇩🇪 949 37 4 May 2022 59th primo-ppcg 🇹🇭 949 37 5 May 2022 61st antimon2 🇯🇵 948 45 10 Sep 2022 62nd DelaneyJM 948 47 7 Apr 2025 62nd KevinMarquette 🇺🇸 948 47 7 Apr 2025 62nd sean-niemann 🇺🇸 948 47 7 Apr 2025 62nd corbob 🇨🇦 948 47 8 Apr 2025 62nd jborean93 948 47 9 Apr 2025 62nd bitsandbeyond 🇳🇱 948 47 2 days ago 62nd DialFrost 🇸🇬 948 47 46 hours ago 69th Lydxn 🇨🇦 948 89 6 May 2022 69th JayXon 🇺🇸 948 89 7 May 2022 69th nwellnhof 🇩🇪 948 89 5 Jun 2022 69th snyderek 🇺🇸 948 89 19 Feb 2025 73rd GrayJoKing 🇦🇺 947 37 5 May 2022 73rd MeWhenI 🇻🇦 947 37 4 Mar 2025 75th GrayJoKing 🇦🇺 946 59 15 Nov 2022 1–75 of 3,065 Next