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 525th ovs-code 🇩🇪 880 70 8 Oct 2023 525th catfish000 880 70 8 Oct 2023 525th saito-ta 🇯🇵 880 70 21 Dec 2023 525th sean-niemann 🇺🇸 880 70 10 Jul 2024 530th m-tkach 🇺🇦 880 117 7 May 2022 530th Lydxn 🇨🇦 880 117 7 May 2022 532nd ovs-code 🇩🇪 879 89 24 Jul 2024 532nd jipsong 🇩🇪 879 89 7 Apr 2025 534th nipzu 879 94 17 May 2022 534th Natanaelel 🇸🇪 879 94 17 Jun 2022 534th nkoppel 879 94 19 Oct 2022 534th ovs-code 🇩🇪 879 94 21 Jun 2023 534th mousetail 🇳🇱 879 94 12 Jan 2024 539th Irratix 🇳🇱 879 96 4 May 2022 539th MeWhenI 🇻🇦 879 96 1 Jun 2022 539th janbehrens 🇩🇪 879 96 21 Apr 2023 539th Shanethegamer 🇺🇸 879 96 15 May 2023 539th Yewzir 🇧🇪 879 96 11 Nov 2023 539th MateuszPietrzak 🇵🇱 879 96 18 Nov 2023 539th kkoenig 879 96 21 Dec 2023 539th BlankSpruce 879 96 20 Aug 2024 539th fuzzylojik-golf 🇺🇸 879 96 3 days ago 548th jared-hughes 879 130 15 Dec 2024 549th ravnskjaer 🇩🇰 879 133 11 Sep 2024 550th sisyphus-ppcg 🇦🇺 878 40 31 Jan 2023 550th sean-niemann 🇺🇸 878 40 8 Mar 2025 552nd m-tkach 🇺🇦 878 113 15 Jan 2025 553rd ovs-code 🇩🇪 877 151 9 Sep 2023 554th primo-ppcg 🇹🇭 876 85 14 Jan 2025 554th MeWhenI 🇻🇦 876 85 21 Apr 2025 556th GrayJoKing 🇦🇺 875 72 31 May 2022 556th Shanethegamer 🇺🇸 875 72 1 Jun 2022 556th Steffan153 🇫🇮 875 72 10 Dec 2022 559th steffan-polygolf 875 74 14 Feb 2024 560th Shanethegamer 🇺🇸 875 142 27 Mar 2025 560th DialFrost 🇸🇬 875 142 28 Mar 2025 560th emgordon154 875 142 10 Apr 2025 563rd Shanethegamer 🇺🇸 874 51 15 May 2023 564th rucin93 🇵🇱 873 57 4 Aug 2024 564th dokutan 873 57 9 Aug 2024 566th c0d3-4-F00d 🇩🇪 873 61 6 May 2022 566th jackkav 873 61 26 Jun 2022 566th TechNolaByte 873 61 6 Jul 2022 566th Heathcorp 🇦🇺 873 61 17 Jul 2022 566th C0de5mith 🇺🇸 873 61 3 Aug 2022 566th sebipopa 🇷🇴 873 61 18 Aug 2022 566th moikaturns 🇬🇧 873 61 25 Sep 2022 566th FlorianCassayre 🇫🇷 873 61 27 Sep 2022 566th Mazn3k 873 61 1 Feb 2023 566th tvcv901 873 61 22 Mar 2023 566th unfinishedprogram 873 61 19 Jul 2023 566th snoozingnewt 🇺🇸 873 61 23 Sep 2023 566th funnyboy-roks 873 61 9 May 2024 566th bac0id 873 61 29 Jun 2024 566th madex 🇩🇪 873 61 9 Jul 2024 566th cdesodt 873 61 10 Oct 2024 566th RobertHoeh 873 61 5 Apr 2025 566th kirjavascript 873 61 4 May 2025 566th LvLError 873 61 19 days ago 566th Lv0Sys 🇵🇱 873 61 18 days ago 566th Protothor 873 61 18 days ago 587th ovs-code 🇩🇪 873 73 22 Jul 2023 588th Grrisly 873 74 25 Mar 2024 589th c0d3-4-F00d 🇩🇪 873 89 5 May 2022 589th TRexOnGit 873 89 16 Feb 2024 589th arcpolaris 873 89 18 Nov 2024 592nd NerdyMcNerd42 872 64 26 Oct 2022 592nd tpasfieldERAU 872 64 14 Nov 2022 592nd CheeseCake628 🇳🇴 872 64 6 Jan 2023 592nd adamnielson42 🇺🇸 872 64 25 Apr 2023 592nd nathsou 🇫🇷 872 64 2 Sep 2023 592nd zwxzwxzwx21 872 64 30 Jan 2024 592nd steffan-polygolf 872 64 8 Mar 2024 592nd Jacob385 872 64 4 Apr 2024 592nd gallium-gonzollium 872 64 26 Aug 2024 Prev 526–600 of 3,074 Next