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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 Gray Code Decoder Gray Code Encoder 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 96th 5quiwyrm 936 83 437ms 4 Sep 2022 96th Betuaredead 936 83 483ms 5 Jan 2023 96th Yewzir 🇧🇪 936 83 403ms 12 Feb 2023 96th btnlq 936 83 433ms 9 Mar 2023 96th Adix-null 🇱🇹 936 83 474ms 17 May 2023 96th Matgc04 936 83 497ms 19 May 2023 96th AdrienHache 🇫🇷 936 83 444ms 8 Jun 2023 96th gblikas 936 83 449ms 23 Jul 2023 96th KrausRaus 🇺🇸 936 83 448ms 31 Jul 2023 96th namelessiw 936 83 422ms 9 Apr 2025 96th dokutan 936 83 463ms 9 Apr 2025 96th m-tkach 🇺🇦 936 83 410ms 10 Apr 2025 96th DialFrost 🇸🇬 936 83 432ms 10 Apr 2025 96th kylejcwu 936 83 435ms 19 Apr 2025 96th Tyrant7 936 83 413ms 19 Apr 2025 96th Yax42 🇫🇷 936 83 436ms 19 Apr 2025 96th MeWhenI 🇻🇦 936 83 445ms 19 Jun 2025 96th sean-niemann 🇺🇸 936 83 420ms 20 Jun 2025 96th stefangimmillaro 936 83 391ms 20 Jun 2025 96th tomh1012 936 83 429ms 28 Aug 2025 96th fuzzylojik-golf 🇺🇸 936 83 427ms 8 Sep 2025 96th CaedenHarper 🇨🇦 936 83 410ms 17 Oct 2025 96th Flix7dev 🇧🇪 936 83 403ms 21 Oct 2025 96th arcpolaris 936 83 427ms 13 Jan 2026 96th amazingalek 🇳🇴 936 83 430ms 21 Jan 2026 96th scpchicken 🇵🇼 936 83 404ms 4 days ago 127th inventshah 935 57 15ms 4 May 2022 127th itsh01 935 57 12ms 17 May 2022 127th Natanaelel 🇸🇪 935 57 14ms 16 Jun 2022 127th Attero 🇸🇪 935 57 12ms 3 Aug 2022 127th SirFireball3521 935 57 13ms 26 Jan 2023 127th Kacarott 🇦🇺 935 57 12ms 24 Mar 2023 127th nathanadams 🇳🇿 935 57 13ms 24 Apr 2023 127th hacker112 🇸🇪 935 57 18ms 20 Jun 2024 127th thisishowmymindworks 🇳🇴 935 57 14ms 28 Jun 2024 127th Salutations45 935 57 11ms 18 Nov 2024 127th daniel-cardone 935 57 16ms 3 Jul 2025 127th CaedenHarper 🇨🇦 935 57 11ms 28 Sep 2025 127th BrunoVisnadi 🇧🇷 935 57 12ms 21 Oct 2025 127th Laellekoenig 935 57 11ms 22 Oct 2025 127th madex 🇩🇪 935 57 11ms 15 Mar 2026 142nd DialFrost 🇸🇬 934 89 470ms 24 Sep 2025 142nd ovs-code 🇩🇪 934 89 514ms 24 Sep 2025 142nd dokutan 934 89 617ms 24 Sep 2025 142nd sean-niemann 🇺🇸 934 89 443ms 24 Sep 2025 142nd Shanethegamer 🇺🇸 934 89 484ms 25 Sep 2025 142nd nwellnhof 🇩🇪 934 89 491ms 25 Sep 2025 142nd m-tkach 🇺🇦 934 89 504ms 25 Sep 2025 142nd namelessiw 934 89 531ms 2 Oct 2025 142nd Yewzir 🇧🇪 934 89 502ms 2 Oct 2025 142nd Yax42 🇫🇷 934 89 458ms 4 Oct 2025 142nd stefangimmillaro 934 89 529ms 6 Oct 2025 142nd CaedenHarper 🇨🇦 934 89 482ms 9 Oct 2025 142nd Jacob385 934 89 491ms 27 Oct 2025 142nd MeWhenI 🇻🇦 934 89 536ms 7 Nov 2025 142nd ethanlally 934 89 507ms 10 Nov 2025 142nd snoozingnewt 🇨🇦 934 89 448ms 23 Nov 2025 142nd ScottHamper 934 89 441ms 30 Nov 2025 142nd KasperKivimaeki 🇫🇮 934 89 462ms 30 Nov 2025 160th primo-ppcg 🇹🇭 933 58 4ms 13 Nov 2022 160th clockworknazo 933 58 5ms 15 Nov 2022 160th Lydxn 🇨🇦 933 58 5ms 7 Feb 2023 160th xsot 🇸🇬 933 58 5ms 28 Jun 2024 160th Salutations45 933 58 5ms 18 Dec 2024 160th canissimia 🇦🇶 933 58 5ms 12 Dec 2025 166th ovs-code 🇩🇪 932 60 22ms 4 May 2022 166th m-tkach 🇺🇦 932 60 17ms 4 May 2022 166th btnlq 932 60 25ms 5 May 2022 166th orthoplex 🇨🇽 932 60 25ms 9 Oct 2022 166th FlorianCassayre 🇫🇷 932 60 20ms 7 Nov 2022 166th SirBogman 🇺🇸 932 60 21ms 20 Nov 2022 166th QuincyNash 🇺🇸 932 60 20ms 1 Dec 2022 166th Steffan153 🇫🇮 932 60 19ms 19 Dec 2022 166th SirFireball3521 932 60 18ms 26 Jan 2023 166th Shanethegamer 🇺🇸 932 60 22ms 25 May 2023 166th CornerMercury 🇬🇧 932 60 20ms 19 Jun 2023 166th ndren 932 60 21ms 2 Aug 2023 166th kg583 🇺🇸 932 60 52ms 14 Aug 2023 166th Just4FunCoder 932 60 21ms 17 Feb 2024 166th HumanoidCPU 932 60 21ms 6 May 2024 166th sean-niemann 🇺🇸 932 60 21ms 10 Jul 2024 166th pardouin 🇫🇷 932 60 17ms 11 Jul 2024 166th dokutan 932 60 23ms 15 Aug 2024 166th jatloe 932 60 19ms 26 Aug 2024 166th emgordon154 932 60 20ms 6 Sep 2024 166th starfihs 932 60 17ms 12 Oct 2024 166th CaedenHarper 🇨🇦 932 60 19ms 3 Nov 2024 166th 5quiwyrm 932 60 20ms 12 Nov 2024 166th plcc0 932 60 17ms 26 Mar 2025 166th yujh-yujh 🇬🇸 932 60 18ms 28 Mar 2025 166th albanian-laundromat 🇺🇸 932 60 20ms 12 Apr 2025 166th Mukundan314 932 60 21ms 17 Apr 2025 166th fuzzylojik-golf 🇺🇸 932 60 20ms 1 Sep 2025 166th luuumine 🇫🇷 932 60 21ms 3 Nov 2025 166th Babafaba 932 60 20ms 7 Nov 2025 166th hellopir2 932 60 24ms 24 Nov 2025 197th canissimia 🇦🇶 931 51 1,347ms 6 May 2022 197th Lydxn 🇨🇦 931 51 1,359ms 6 May 2022 197th primo-ppcg 🇹🇭 931 51 1,435ms 6 May 2022 197th pardouin 🇫🇷 931 51 1,380ms 12 Apr 2025 First Prev 101–200 of 3,665 Next Last