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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT 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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 525th dvargas46 🇺🇸 880 52 22 Dec 2022 527th stefangimmillaro 880 53 2 Oct 2022 527th Haksell 🇦🇶 880 53 22 Feb 2023 527th pardouin 🇫🇷 880 53 6 Oct 2024 530th GrayJoKing 🇦🇺 880 70 6 May 2022 530th ovs-code 🇩🇪 880 70 8 Oct 2023 530th catfish000 880 70 8 Oct 2023 530th saito-ta 🇯🇵 880 70 21 Dec 2023 530th sean-niemann 🇺🇸 880 70 10 Jul 2024 535th SiestaGuru 880 88 9 Jan 2023 535th rifatx 880 88 5 Jul 2024 537th DialFrost 🇸🇬 879 76 16 days ago 538th sisyphus-ppcg 🇦🇺 878 40 31 Jan 2023 538th sean-niemann 🇺🇸 878 40 25 days ago 540th nipzu 878 94 17 May 2022 540th Natanaelel 🇸🇪 878 94 17 Jun 2022 540th nkoppel 878 94 19 Oct 2022 540th ovs-code 🇩🇪 878 94 21 Jun 2023 540th mousetail 🇳🇱 878 94 12 Jan 2024 540th sean-niemann 🇺🇸 878 94 13 Oct 2024 546th Irratix 🇳🇱 878 96 4 May 2022 546th MeWhenI 🇻🇦 878 96 1 Jun 2022 546th janbehrens 🇩🇪 878 96 21 Apr 2023 546th Shanethegamer 🇺🇸 878 96 15 May 2023 546th Yewzir 878 96 11 Nov 2023 546th MateuszPietrzak 🇵🇱 878 96 18 Nov 2023 546th kkoenig 878 96 21 Dec 2023 546th sean-niemann 🇺🇸 878 96 10 Jul 2024 546th BlankSpruce 878 96 20 Aug 2024 555th m-tkach 🇺🇦 878 113 15 Jan 2025 556th ravnskjaer 🇩🇰 878 133 11 Sep 2024 557th m-tkach 🇺🇦 877 117 7 May 2022 557th Lydxn 🇨🇦 877 117 7 May 2022 559th ovs-code 🇩🇪 877 151 9 Sep 2023 560th ovs-code 🇩🇪 876 89 24 Jul 2024 561st GrayJoKing 🇦🇺 875 72 31 May 2022 561st Shanethegamer 🇺🇸 875 72 1 Jun 2022 561st Steffan153 🇫🇮 875 72 10 Dec 2022 564th steffan-polygolf 875 74 14 Feb 2024 565th Shanethegamer 🇺🇸 874 70 12 Dec 2022 565th Alessandro-Balconi 🇮🇹 874 70 26 Dec 2022 567th primo-ppcg 🇹🇭 874 85 14 Jan 2025 568th jared-hughes 874 130 15 Dec 2024 569th TaserTheFox 🇺🇸 873 54 31 May 2023 570th rucin93 🇵🇱 873 57 4 Aug 2024 570th dokutan 873 57 9 Aug 2024 572nd ovs-code 🇩🇪 873 73 22 Jul 2023 573rd c0d3-4-F00d 🇩🇪 872 61 6 May 2022 573rd jackkav 872 61 26 Jun 2022 573rd TechNolaByte 872 61 6 Jul 2022 573rd Heathcorp 🇦🇺 872 61 17 Jul 2022 573rd C0de5mith 🇺🇸 872 61 3 Aug 2022 573rd sebipopa 🇷🇴 872 61 18 Aug 2022 573rd moikaturns 🇬🇧 872 61 25 Sep 2022 573rd FlorianCassayre 🇫🇷 872 61 27 Sep 2022 573rd Mazn3k 872 61 1 Feb 2023 573rd tvcv901 872 61 22 Mar 2023 573rd unfinishedprogram 872 61 19 Jul 2023 573rd snoozingnewt 🇺🇸 872 61 23 Sep 2023 573rd funnyboy-roks 872 61 9 May 2024 573rd bac0id 872 61 29 Jun 2024 573rd madex 🇩🇪 872 61 9 Jul 2024 573rd cdesodt 872 61 10 Oct 2024 589th NerdyMcNerd42 872 64 26 Oct 2022 589th tpasfieldERAU 872 64 14 Nov 2022 589th CheeseCake628 🇳🇴 872 64 6 Jan 2023 589th adamnielson42 🇺🇸 872 64 25 Apr 2023 589th nathsou 🇫🇷 872 64 2 Sep 2023 589th zwxzwxzwx21 872 64 30 Jan 2024 589th steffan-polygolf 872 64 8 Mar 2024 589th Jacob385 872 64 4 Apr 2024 589th gallium-gonzollium 872 64 26 Aug 2024 589th albanian-laundromat 872 64 5 days ago 599th Grrisly 872 74 25 Mar 2024 600th GrayJoKing 🇦🇺 872 84 19 Jun 2022 Prev 526–600 of 2,889 Next