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 558th VictorStenvers 🇳🇱 887 63 27ms 13 Nov 2023 558th 1231234md5 🇨🇳 887 63 21ms 14 Dec 2023 558th f-tucker 887 63 24ms 6 Feb 2024 558th JunkIce 887 63 25ms 24 Nov 2024 558th Kowalskiexe 🇵🇱 887 63 21ms 19 Apr 2025 558th 123mjb 887 63 24ms 2 Jun 2025 558th DrakeSeteraO 887 63 63ms 24 Oct 2025 558th enigma 887 63 38ms 21 Dec 2025 558th ASampsonMu31 887 63 52ms 13 Mar 2026 570th lynn 887 65 267ms 5 May 2022 570th GrayJoKing 🇦🇺 887 65 250ms 5 May 2022 570th Sakisan 🇧🇪 887 65 178ms 6 May 2022 570th JayXon 🇺🇸 887 65 271ms 17 Oct 2022 570th Steffan153 🇫🇮 887 65 181ms 12 Nov 2022 570th tobeannouncd 887 65 302ms 25 Apr 2025 570th sean-niemann 🇺🇸 887 65 168ms 9 Jun 2025 577th stefangimmillaro 887 71 100ms 2 Oct 2022 577th Steffan153 🇫🇮 887 71 100ms 23 Feb 2023 577th Shanethegamer 🇺🇸 887 71 98ms 16 May 2023 577th sean-niemann 🇺🇸 887 71 96ms 12 Jul 2024 581st Shanethegamer 🇺🇸 887 72 145ms 8 May 2025 581st edsrzf 🇳🇿 887 72 144ms 4 Jul 2025 581st Yewzir 🇧🇪 887 72 134ms 20 Nov 2025 584th DialFrost 🇸🇬 887 95 30ms 10 Dec 2024 585th Steffan153 🇫🇮 886 52 7ms 31 Dec 2022 585th blaztoma 🇱🇹 886 52 8ms 18 Jan 2026 587th frankgraziano 886 75 21ms 23 Feb 2026 588th GrayJoKing 🇦🇺 886 77 76ms 13 Sep 2024 589th albanian-laundromat 🇺🇸 885 94 486ms 24 Sep 2025 589th jkelly467 885 94 401ms 23 Oct 2025 589th HumanoidCPU 885 94 479ms 8 Nov 2025 592nd m-tkach 🇺🇦 885 112 116ms 22 Jun 2025 593rd primo-ppcg 🇹🇭 884 85 39ms 14 Jan 2025 593rd MeWhenI 🇻🇦 884 85 41ms 21 Apr 2025 595th primo-ppcg 🇹🇭 883 52 219ms 5 May 2022 595th dvargas46 🇺🇸 883 52 87ms 22 Dec 2022 597th ovs-code 🇩🇪 883 73 340ms 22 Jul 2023 598th SiestaGuru 883 88 371ms 9 Jan 2023 598th rifatx 883 88 376ms 5 Jul 2024 598th kmathis22 883 88 371ms 25 Sep 2025 601st ovs-code 🇩🇪 883 89 458ms 24 Jul 2024 601st jipsong 🇩🇪 883 89 450ms 7 Apr 2025 601st DialFrost 🇸🇬 883 89 485ms 24 Dec 2025 604th GrayJoKing 🇦🇺 882 70 2ms 6 May 2022 604th ovs-code 🇩🇪 882 70 2ms 8 Oct 2023 604th 09cf 882 70 2ms 8 Oct 2023 604th saito-ta 🇯🇵 882 70 2ms 21 Dec 2023 604th sean-niemann 🇺🇸 882 70 2ms 10 Jul 2024 604th KasperKivimaeki 🇫🇮 882 70 6ms 8 Aug 2025 610th frosster 🇨🇦 882 77 5ms 8 Feb 2026 611th nipzu 882 94 126ms 17 May 2022 611th Natanaelel 🇸🇪 882 94 126ms 17 Jun 2022 611th nkoppel 882 94 122ms 19 Oct 2022 611th ovs-code 🇩🇪 882 94 126ms 21 Jun 2023 611th mousetail 🇳🇱 882 94 126ms 12 Jan 2024 616th Irratix 🇳🇱 882 96 62ms 4 May 2022 616th MeWhenI 🇻🇦 882 96 59ms 1 Jun 2022 616th janbehrens 🇩🇪 882 96 61ms 21 Apr 2023 616th Shanethegamer 🇺🇸 882 96 58ms 15 May 2023 616th Yewzir 🇧🇪 882 96 72ms 11 Nov 2023 616th MateuszPietrzak 🇵🇱 882 96 60ms 18 Nov 2023 616th kkoenig 882 96 62ms 21 Dec 2023 616th BlankSpruce 882 96 62ms 20 Aug 2024 616th fuzzylojik-golf 🇺🇸 882 96 60ms 14 Jun 2025 616th dokutan 882 96 60ms 8 Feb 2026 626th sisyphus-ppcg 🇦🇺 881 40 387ms 31 Jan 2023 626th sean-niemann 🇺🇸 881 40 385ms 8 Mar 2025 628th canissimia 🇦🇶 881 50 42ms 5 May 2022 628th ovs-code 🇩🇪 881 50 223ms 7 May 2022 628th sisyphus-ppcg 🇦🇺 881 50 42ms 20 Feb 2023 628th sean-niemann 🇺🇸 881 50 44ms 9 Jun 2025 628th pardouin 🇫🇷 881 50 40ms 22 Aug 2025 633rd sean-niemann 🇺🇸 881 108 335ms 25 May 2024 633rd GolfingSuccess 🇬🇷 881 108 340ms 6 Sep 2025 633rd edsrzf 🇳🇿 881 108 330ms 10 days ago 636th primo-ppcg 🇹🇭 881 193 107ms 14 Aug 2025 637th GrayJoKing 🇦🇺 880 72 433ms 31 May 2022 637th Shanethegamer 🇺🇸 880 72 437ms 1 Jun 2022 637th Steffan153 🇫🇮 880 72 442ms 10 Dec 2022 640th steffan-polygolf 880 74 132ms 14 Feb 2024 First Prev 561–640 of 3,733 Next Last