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 238th postie77 925 84 418ms 19 May 2023 238th ertz1ertz 925 84 420ms 13 Sep 2024 238th Grabnukebomb 925 84 413ms 13 Sep 2024 238th Shanethegamer 🇺🇸 925 84 443ms 9 Apr 2025 238th HumanoidCPU 925 84 410ms 10 Apr 2025 238th annaproxy 925 84 423ms 11 Apr 2025 238th Re-Adventures 🇮🇳 925 84 424ms 15 Apr 2025 238th janbehrens 🇩🇪 925 84 436ms 17 Apr 2025 249th ovs-code 🇩🇪 924 60 5ms 9 Oct 2023 249th GrayJoKing 🇦🇺 924 60 4ms 11 Oct 2023 249th Lydxn 🇨🇦 924 60 5ms 11 Oct 2023 249th GolfingSuccess 🇬🇷 924 60 4ms 16 Nov 2023 249th Steffan153 🇫🇮 924 60 5ms 28 Jan 2024 249th JayXon 🇺🇸 924 60 4ms 29 Jan 2024 249th rucin93 🇵🇱 924 60 5ms 10 Jul 2024 249th sean-niemann 🇺🇸 924 60 5ms 10 Jul 2024 249th edsrzf 🇳🇿 924 60 5ms 9 Mar 2026 258th h3ra993huskp 🇯🇵 924 90 425ms 30 Nov 2025 259th KasperKivimaeki 🇫🇮 924 103 358ms 10 Dec 2025 260th Steffan153 🇫🇮 923 51 1,122ms 19 Mar 2026 261st sisyphus-ppcg 🇦🇺 923 65 106ms 19 Dec 2025 261st ovs-code 🇩🇪 923 65 118ms 19 Dec 2025 263rd Steffan153 🇫🇮 923 67 37ms 19 Aug 2024 263rd JayXon 🇺🇸 923 67 37ms 19 Aug 2024 265th sisyphus-ppcg 🇦🇺 921 50 2,565ms 31 Jan 2023 265th saito-ta 🇯🇵 921 50 844ms 12 Dec 2024 267th Lydxn 🇨🇦 921 90 123ms 6 May 2022 268th Herbert00709 🇵🇱 921 92 59ms 17 Nov 2023 268th 4QT0R 921 92 61ms 23 Nov 2023 268th ovs-code 🇩🇪 921 92 56ms 3 Jun 2024 271st uiamn 919 58 12ms 6 Sep 2022 271st 5quiwyrm 919 58 14ms 29 Sep 2022 271st alasdair-greenland 919 58 13ms 13 Jan 2023 271st kirjavascript 919 58 11ms 4 Aug 2025 271st Posandu 919 58 12ms 26 Aug 2025 271st mrxz 🇳🇱 919 58 11ms 3 Sep 2025 277th Mukundan314 918 55 1,610ms 27 Dec 2025 278th btnlq 918 59 5ms 6 Nov 2022 278th DialFrost 🇸🇬 918 59 5ms 23 Dec 2025 280th JayXon 🇺🇸 918 69 554ms 5 Apr 2023 280th Lydxn 🇨🇦 918 69 568ms 9 Apr 2023 282nd MichalMarsalek 🇨🇿 918 71 137ms 5 May 2022 282nd Lydxn 🇨🇦 918 71 132ms 7 May 2022 282nd GrayJoKing 🇦🇺 918 71 128ms 8 May 2022 282nd JayXon 🇺🇸 918 71 128ms 8 May 2022 282nd Steffan153 🇫🇮 918 71 131ms 9 Mar 2023 282nd Shanethegamer 🇺🇸 918 71 126ms 15 May 2023 282nd MeWhenI 🇻🇦 918 71 133ms 8 Aug 2023 282nd sean-niemann 🇺🇸 918 71 129ms 9 Jan 2025 290th GrayJoKing 🇦🇺 918 74 4ms 23 Dec 2025 290th FlyingPenguin223 918 74 6ms 29 Dec 2025 292nd primo-ppcg 🇹🇭 917 24 163ms 10 Dec 2022 293rd Irratix 🇳🇱 917 61 47ms 7 May 2022 293rd TFeld00 🇩🇰 917 61 26ms 17 May 2022 293rd hallvabo 🇳🇴 917 61 21ms 4 Sep 2022 293rd DialFrost 🇸🇬 917 61 26ms 19 Dec 2022 293rd anter69 🇭🇺 917 61 22ms 19 Dec 2022 293rd Alex-x90 🇺🇸 917 61 20ms 27 Dec 2022 293rd commandz0 🇺🇸 917 61 20ms 22 Aug 2023 293rd fgrosshans 🇫🇷 917 61 20ms 22 Jul 2024 293rd duckyluuk 🇳🇱 917 61 21ms 15 Aug 2024 293rd rucin93 🇵🇱 917 61 19ms 31 May 2025 293rd katss2 917 61 21ms 17 Aug 2025 293rd snoozingnewt 🇨🇦 917 61 21ms 6 Dec 2025 293rd Flekay 🇩🇪 917 61 20ms 15 Feb 2026 293rd JOrE20 917 61 17ms 25 Feb 2026 293rd jusaka 917 61 18ms 16 days ago 308th pardouin 🇫🇷 916 72 2,442ms 21 May 2025 309th Steffan153 🇫🇮 916 76 12ms 15 May 2023 309th primo-ppcg 🇹🇭 916 76 20ms 15 May 2023 309th Lydxn 🇨🇦 916 76 8ms 22 May 2023 309th GrayJoKing 🇦🇺 916 76 12ms 24 Aug 2023 309th kg583 🇺🇸 916 76 12ms 22 Feb 2026 309th Steffan153 🇫🇮 916 76 23ms 19 Mar 2026 315th xnor-gate 915 63 187ms 20 Jan 2025 316th arctouch-cristiannevianna 914 85 408ms 3 Apr 2023 316th Widgitty 914 85 429ms 1 Sep 2023 316th tomtheisen 🇺🇸 914 85 438ms 10 Apr 2025 319th Shanethegamer 🇺🇸 914 86 461ms 15 May 2023 319th JayXon 🇺🇸 914 86 481ms 15 May 2023 First Prev 241–320 of 3,763 Next Last