Collatz in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 80th MeWhenI 🇻🇦 947 37 47ms 4 Mar 2025 82nd Lydxn 🇨🇦 947 82 390ms 6 May 2022 82nd JayXon 🇺🇸 947 82 389ms 9 May 2022 84th Lydxn 🇨🇦 945 51 761ms 17 Jan 2024 85th ovs-code 🇩🇪 945 61 244ms 5 Aug 2024 86th JayXon 🇺🇸 944 88 390ms 24 Sep 2025 86th Lydxn 🇨🇦 944 88 409ms 12 Dec 2025 88th Lydxn 🇨🇦 943 59 10ms 6 May 2022 89th JayXon 🇺🇸 942 88 137ms 17 Oct 2022 89th acotis 942 88 129ms 9 Jun 2025 89th kumavale 942 88 135ms 7 Oct 2025 92nd 2bular 939 32 27ms 17 Oct 2024 93rd primo-ppcg 🇹🇭 938 49 6ms 5 May 2022 93rd Lydxn 🇨🇦 938 49 7ms 8 May 2022 95th saito-ta 🇯🇵 935 49 65ms 13 May 2022 95th Lydxn 🇨🇦 935 49 66ms 28 May 2022 97th canissimia 🇦🇶 935 50 40ms 5 May 2022 97th ovs-code 🇩🇪 935 50 236ms 7 May 2022 97th sisyphus-ppcg 🇦🇺 935 50 42ms 20 Feb 2023 97th Steffan153 🇫🇮 935 50 43ms 20 Jul 2024 97th sean-niemann 🇺🇸 935 50 40ms 9 Jun 2025 97th pardouin 🇫🇷 935 50 40ms 22 Aug 2025 103rd inventshah 935 57 11ms 4 May 2022 103rd itsh01 935 57 11ms 17 May 2022 103rd Natanaelel 🇸🇪 935 57 13ms 16 Jun 2022 103rd Attero 🇸🇪 935 57 11ms 3 Aug 2022 103rd SirFireball3521 935 57 11ms 26 Jan 2023 103rd Kacarott 🇦🇺 935 57 13ms 24 Mar 2023 103rd nathanadams 🇳🇿 935 57 13ms 24 Apr 2023 103rd hacker112 🇸🇪 935 57 11ms 20 Jun 2024 103rd thisishowmymindworks 🇳🇴 935 57 18ms 28 Jun 2024 103rd Salutations45 935 57 11ms 18 Nov 2024 103rd daniel-cardone 935 57 12ms 3 Jul 2025 103rd CaedenHarper 🇨🇦 935 57 11ms 28 Sep 2025 103rd BrunoVisnadi 🇧🇷 935 57 11ms 21 Oct 2025 103rd Laellekoenig 935 57 16ms 22 Oct 2025 103rd madex 🇩🇪 935 57 11ms 2 hours ago 118th Irratix 🇳🇱 935 83 408ms 4 May 2022 118th nwellnhof 🇩🇪 935 83 405ms 4 May 2022 118th ScottHamper 935 83 380ms 5 May 2022 118th Romain-1 🇫🇷 935 83 411ms 1 Jun 2022 118th Gaddy 🇫🇷 935 83 398ms 1 Jun 2022 118th 5quiwyrm 935 83 379ms 4 Sep 2022 118th Betuaredead 935 83 391ms 5 Jan 2023 118th Yewzir 🇧🇪 935 83 385ms 12 Feb 2023 118th btnlq 935 83 388ms 9 Mar 2023 118th Adix-null 🇱🇹 935 83 410ms 17 May 2023 118th Matgc04 935 83 374ms 19 May 2023 118th AdrienHache 🇫🇷 935 83 464ms 8 Jun 2023 118th gblikas 935 83 473ms 23 Jul 2023 118th KrausRaus 🇺🇸 935 83 392ms 31 Jul 2023 118th namelessiw 935 83 396ms 9 Apr 2025 118th dokutan 935 83 391ms 9 Apr 2025 118th m-tkach 🇺🇦 935 83 411ms 10 Apr 2025 118th DialFrost 🇸🇬 935 83 401ms 10 Apr 2025 118th kylejcwu 935 83 374ms 19 Apr 2025 118th Tyrant7 935 83 409ms 19 Apr 2025 118th Yax42 🇫🇷 935 83 442ms 19 Apr 2025 118th MeWhenI 🇻🇦 935 83 378ms 19 Jun 2025 118th sean-niemann 🇺🇸 935 83 400ms 20 Jun 2025 118th stefangimmillaro 935 83 391ms 20 Jun 2025 118th tomh1012 935 83 456ms 28 Aug 2025 118th fuzzylojik-golf 🇺🇸 935 83 389ms 8 Sep 2025 118th CaedenHarper 🇨🇦 935 83 377ms 17 Oct 2025 118th Flix7dev 🇧🇪 935 83 373ms 21 Oct 2025 118th arcpolaris 935 83 583ms 13 Jan 2026 118th amazingalek 🇳🇴 935 83 450ms 21 Jan 2026 148th DialFrost 🇸🇬 934 89 513ms 24 Sep 2025 148th ovs-code 🇩🇪 934 89 474ms 24 Sep 2025 148th dokutan 934 89 372ms 24 Sep 2025 148th sean-niemann 🇺🇸 934 89 397ms 24 Sep 2025 148th Shanethegamer 🇺🇸 934 89 477ms 25 Sep 2025 148th nwellnhof 🇩🇪 934 89 454ms 25 Sep 2025 148th m-tkach 🇺🇦 934 89 386ms 25 Sep 2025 148th namelessiw 934 89 390ms 2 Oct 2025 148th Yewzir 🇧🇪 934 89 349ms 2 Oct 2025 148th Yax42 🇫🇷 934 89 496ms 4 Oct 2025 148th stefangimmillaro 934 89 489ms 6 Oct 2025 148th CaedenHarper 🇨🇦 934 89 467ms 9 Oct 2025 148th Jacob385 934 89 491ms 27 Oct 2025 First Prev 81–160 of 3,602 Next Last