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 881st randolchance 846 63 11ms 8 Jan 2023 881st CatsAreFluffy 846 63 13ms 18 Feb 2023 881st amiralitaheri 846 63 10ms 23 Feb 2023 881st RuyiLi 846 63 11ms 1 Apr 2023 881st TaserTheFox 🇺🇸 846 63 11ms 25 May 2023 881st pfysches-boop 846 63 11ms 6 Aug 2023 881st mhgockel 846 63 11ms 19 Aug 2023 881st NickTheEASDude 🇺🇸 846 63 11ms 18 Jan 2024 881st 823126 846 63 12ms 14 Nov 2024 881st Palladium02 846 63 10ms 12 May 2025 881st 4very 846 63 10ms 10 Jun 2025 881st Ultra814 846 63 10ms 21 Aug 2025 893rd NewDefectus 🇮🇱 846 73 3ms 6 May 2022 893rd inventshah 846 73 2ms 12 Jun 2022 893rd Natanaelel 🇸🇪 846 73 2ms 15 Jun 2022 893rd Herbert00709 🇵🇱 846 73 2ms 22 Dec 2023 893rd LorenzoDeGaspari 846 73 2ms 27 May 2024 893rd Bpc-CPU 846 73 2ms 12 Jul 2025 893rd AZTECCO 846 73 2ms 16 Sep 2025 893rd CaedenHarper 🇨🇦 846 73 2ms 28 Sep 2025 893rd prestosilver 🇺🇸 846 73 2ms 3 Dec 2025 893rd albanian-laundromat 846 73 3ms 20 Jan 2026 893rd madex 🇩🇪 846 73 2ms 13 days ago 904th Shanethegamer 🇺🇸 846 98 126ms 26 Oct 2022 904th emgordon154 846 98 125ms 18 Feb 2025 906th retrohun 845 64 4ms 6 Nov 2022 906th Re-Adventures 🇮🇳 845 64 4ms 7 Nov 2022 906th stellartux 845 64 4ms 26 Dec 2023 906th bac0id 845 64 4ms 29 Jun 2024 906th snoozingnewt 🇨🇦 845 64 4ms 1 Sep 2024 906th albanian-laundromat 845 64 4ms 22 Sep 2025 912th janAkali 🇷🇺 844 77 131ms 12 Feb 2025 913th bschorno 844 92 341ms 12 Oct 2022 913th ChrisTheisen 844 92 345ms 14 Dec 2022 913th kellantech 844 92 351ms 4 Jul 2023 913th Mezzofloat 844 92 358ms 26 Aug 2023 913th Maximizer02 844 92 365ms 1 Oct 2023 913th madeforlosers 844 92 380ms 21 Nov 2024 913th ChromaChroma 844 92 403ms 7 Oct 2025 913th snoozingnewt 🇨🇦 844 92 398ms 8 Oct 2025 921st DialFrost 🇸🇬 843 66 87ms 7 Apr 2025 921st KasperKivimaeki 🇫🇮 843 66 7ms 22 Dec 2025 923rd MeWhenI 🇻🇦 843 71 110ms 13 Dec 2022 924th emplv 🇱🇻 843 124 25ms 31 Oct 2022 924th emgordon154 843 124 27ms 5 days ago 926th krcs 🇵🇱 842 53 284ms 9 May 2022 926th ryanlanegit 842 53 311ms 19 Jun 2022 926th sisyphus-ppcg 🇦🇺 842 53 456ms 15 Aug 2022 929th SirBogman 🇺🇸 842 89 38ms 4 May 2022 930th error256 841 81 68ms 13 Sep 2024 931st CLOStrophobic 🇮🇹 841 89 42ms 14 Feb 2025 932nd kmathis22 841 100 31ms 13 Nov 2025 933rd raszpi 🇭🇺 840 77 111ms 1 Sep 2023 934th MeWhenI 🇻🇦 840 164 1,639ms 7 Nov 2025 935th frankgraziano 839 66 4ms 20 Apr 2025 936th eshilo-draper 839 75 89ms 6 Sep 2022 936th kmathis22 839 75 91ms 5 Sep 2025 938th sean-niemann 🇺🇸 839 76 141ms 8 Oct 2024 939th beardotpdf 839 99 422ms 12 Dec 2025 940th Codsilla 🇨🇦 838 51 263ms 1 Jul 2022 941st DialFrost 🇸🇬 838 56 1,181ms 1 Sep 2025 941st GolfingSuccess 🇬🇷 838 56 1,114ms 17 Feb 2026 943rd steffan-polygolf 838 81 10ms 23 Feb 2023 943rd FranklinJiaChen 838 81 9ms 23 Feb 2026 945th Andriamanitra 🇫🇮 838 83 12ms 17 Apr 2023 945th Natanaelel 🇸🇪 838 83 12ms 8 Jul 2023 945th DialFrost 🇸🇬 838 83 17ms 1 Jan 2026 948th dokutan 838 88 39ms 9 Jun 2024 949th Steffan153 🇫🇮 838 97 31ms 18 Jan 2023 950th CatsAreFluffy 838 101 61ms 18 Feb 2023 950th annaproxy 838 101 55ms 9 May 2023 950th wojtekmal 838 101 57ms 15 Nov 2023 950th HumanoidCPU 838 101 57ms 6 May 2024 950th eMGeeneer 838 101 435ms 27 Jun 2024 950th bac0id 838 101 69ms 29 Jun 2024 950th michaelmoynihan 838 101 431ms 3 Sep 2025 950th snoozingnewt 🇨🇦 838 101 427ms 6 Oct 2025 958th scpchicken 🇵🇼 836 55 10ms 4 May 2022 958th SirBogman 🇺🇸 836 55 6ms 5 May 2022 958th Shanethegamer 🇺🇸 836 55 6ms 19 May 2023 First Prev 881–960 of 3,638 Next Last