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 Ellipse Perimeters Flags Floyd-Steinberg Dithering 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 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering 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 880th AlephSquirrel 846 26 163ms 6 Jan 2023 880th ovs-code 🇩🇪 846 26 367ms 5 May 2024 880th saito-ta 🇯🇵 846 26 154ms 12 Dec 2024 884th Natanaelel 🇸🇪 846 57 453ms 17 Jan 2024 884th Kacarott 🇦🇺 846 57 461ms 10 Sep 2024 884th albanian-laundromat 🇺🇸 846 57 463ms 7 Oct 2025 887th randolchance 846 63 13ms 8 Jan 2023 887th CatsAreFluffy 846 63 12ms 18 Feb 2023 887th amiralitaheri 846 63 12ms 23 Feb 2023 887th RuyiLi 846 63 15ms 1 Apr 2023 887th TaserTheFox 🇺🇸 846 63 15ms 25 May 2023 887th pfysches-boop 846 63 14ms 6 Aug 2023 887th mhgockel 846 63 13ms 19 Aug 2023 887th NickTheEASDude 🇺🇸 846 63 12ms 18 Jan 2024 887th 823126 846 63 12ms 14 Nov 2024 887th Palladium02 846 63 11ms 12 May 2025 887th 4very 846 63 15ms 10 Jun 2025 887th Ultra814 846 63 12ms 21 Aug 2025 899th retrohun 846 64 4ms 6 Nov 2022 899th Re-Adventures 🇮🇳 846 64 4ms 7 Nov 2022 899th stellartux 846 64 4ms 26 Dec 2023 899th bac0id 846 64 4ms 29 Jun 2024 899th snoozingnewt 🇨🇦 846 64 4ms 1 Sep 2024 899th albanian-laundromat 🇺🇸 846 64 4ms 22 Sep 2025 905th NewDefectus 🇮🇱 846 73 2ms 6 May 2022 905th inventshah 846 73 2ms 12 Jun 2022 905th Natanaelel 🇸🇪 846 73 2ms 15 Jun 2022 905th LorenzoDeGaspari 846 73 2ms 27 May 2024 905th Bpc-CPU 846 73 2ms 12 Jul 2025 905th AZTECCO 846 73 2ms 16 Sep 2025 905th CaedenHarper 🇨🇦 846 73 2ms 28 Sep 2025 905th prestosilver 🇺🇸 846 73 2ms 3 Dec 2025 905th albanian-laundromat 🇺🇸 846 73 3ms 20 Jan 2026 905th madex 🇩🇪 846 73 3ms 20 Mar 2026 915th Shanethegamer 🇺🇸 846 98 129ms 26 Oct 2022 915th emgordon154 846 98 128ms 18 Feb 2025 917th janAkali 🇷🇺 845 77 131ms 12 Feb 2025 918th MeWhenI 🇻🇦 844 71 110ms 13 Dec 2022 919th bschorno 844 92 438ms 12 Oct 2022 919th ChrisTheisen 844 92 407ms 14 Dec 2022 919th kellantech 844 92 406ms 4 Jul 2023 919th Mezzofloat 844 92 415ms 26 Aug 2023 919th Maximizer02 844 92 400ms 1 Oct 2023 919th madeforlosers 844 92 414ms 21 Nov 2024 919th ChromaChroma 844 92 410ms 7 Oct 2025 919th snoozingnewt 🇨🇦 844 92 447ms 8 Oct 2025 927th emplv 🇱🇻 844 124 25ms 31 Oct 2022 927th emgordon154 844 124 27ms 24 days ago 929th DialFrost 🇸🇬 843 66 85ms 7 Apr 2025 929th KasperKivimaeki 🇫🇮 843 66 8ms 22 Dec 2025 931st Natanaelel 🇸🇪 843 87 1,512ms 15 Jun 2022 932nd SirBogman 🇺🇸 843 89 38ms 4 May 2022 933rd GolfingSuccess 🇬🇷 843 109 13ms 19 Mar 2026 934th MeWhenI 🇻🇦 843 162 1,710ms 3 days ago 935th krcs 🇵🇱 842 53 295ms 9 May 2022 935th ryanlanegit 842 53 296ms 19 Jun 2022 935th sisyphus-ppcg 🇦🇺 842 53 462ms 15 Aug 2022 938th error256 842 81 68ms 13 Sep 2024 939th CLOStrophobic 🇮🇹 842 89 42ms 14 Feb 2025 940th kmathis22 842 100 42ms 13 Nov 2025 941st sean-niemann 🇺🇸 841 76 141ms 8 Oct 2024 942nd frankgraziano 840 66 4ms 20 Apr 2025 943rd raszpi 🇭🇺 840 77 117ms 1 Sep 2023 944th beardotpdf 840 99 422ms 12 Dec 2025 945th DialFrost 🇸🇬 839 56 1,181ms 1 Sep 2025 945th GolfingSuccess 🇬🇷 839 56 1,114ms 17 Feb 2026 947th eshilo-draper 839 75 96ms 6 Sep 2022 947th kmathis22 839 75 90ms 5 Sep 2025 949th Andriamanitra 🇫🇮 839 83 12ms 17 Apr 2023 949th Natanaelel 🇸🇪 839 83 12ms 8 Jul 2023 951st dokutan 839 88 39ms 9 Jun 2024 952nd Steffan153 🇫🇮 839 97 30ms 18 Jan 2023 953rd CatsAreFluffy 839 101 62ms 18 Feb 2023 953rd annaproxy 839 101 62ms 9 May 2023 953rd wojtekmal 839 101 69ms 15 Nov 2023 953rd HumanoidCPU 839 101 64ms 6 May 2024 953rd eMGeeneer 839 101 416ms 27 Jun 2024 953rd bac0id 839 101 63ms 29 Jun 2024 953rd michaelmoynihan 839 101 433ms 3 Sep 2025 953rd snoozingnewt 🇨🇦 839 101 458ms 6 Oct 2025 First Prev 881–960 of 3,744 Next Last