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 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 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 319th tomtheisen 🇺🇸 914 85 407ms 10 Apr 2025 322nd kmathis22 914 91 471ms 20 Nov 2025 323rd Lydxn 🇨🇦 913 70 143ms 7 May 2022 323rd JayXon 🇺🇸 913 70 143ms 7 May 2022 325th annaproxy 913 78 112ms 13 Jan 2023 325th IanUtley 913 78 115ms 12 Nov 2023 325th GrayJoKing 🇦🇺 913 78 81ms 28 Nov 2023 328th Shanethegamer 🇺🇸 913 86 461ms 15 May 2023 328th JayXon 🇺🇸 913 86 481ms 15 May 2023 328th Steffan153 🇫🇮 913 86 460ms 16 May 2023 328th Lydxn 🇨🇦 913 86 456ms 16 May 2023 328th GrayJoKing 🇦🇺 913 86 461ms 11 Aug 2023 328th sean-niemann 🇺🇸 913 86 468ms 11 Jul 2024 334th primo-ppcg 🇹🇭 912 61 7ms 6 May 2022 334th sisyphus-ppcg 🇦🇺 912 61 10ms 14 Jul 2022 336th Bubbler-4 911 33 2,528ms 6 May 2022 336th rak1507 🇬🇧 911 33 108ms 8 May 2022 336th ngn 🇧🇬 911 33 25ms 11 May 2022 336th zacjl 911 33 32ms 3 Jun 2025 336th GrayJoKing 🇦🇺 911 33 13ms 4 Jun 2025 336th HPWiz 🇳🇿 911 33 9ms 16 Nov 2025 342nd Steffan153 🇫🇮 911 71 110ms 14 Oct 2022 342nd Shanethegamer 🇺🇸 911 71 109ms 15 Oct 2022 342nd stefangimmillaro 911 71 110ms 16 Oct 2022 342nd MeWhenI 🇻🇦 911 71 113ms 16 Oct 2022 342nd Steffan153 🇫🇮 911 71 67ms 9 days ago 347th Lydxn 🇨🇦 911 81 39ms 1 Apr 2023 348th andersk 🇺🇸 911 91 133ms 25 Oct 2022 348th Super-Pizza 🇨🇦 911 91 120ms 4 Dec 2022 348th klixel 🇨🇦 911 91 124ms 20 May 2023 348th lynn 911 91 128ms 6 Jul 2024 348th edsrzf 🇳🇿 911 91 124ms 29 Nov 2024 348th DialFrost 🇸🇬 911 91 130ms 7 Apr 2025 348th elgan65536 🇺🇸 911 91 131ms 10 Feb 2026 348th fantaize 911 91 133ms 10 Mar 2026 348th snoozingnewt 🇨🇦 911 91 137ms 21 days ago 357th tailorspy 911 93 55ms 27 May 2024 357th sean-niemann 🇺🇸 911 93 62ms 9 Jun 2025 357th KasperKivimaeki 🇫🇮 911 93 63ms 26 Oct 2025 360th Lydxn 🇨🇦 910 47 273ms 5 May 2022 361st JayXon 🇺🇸 910 53 431ms 17 Aug 2024 362nd nai62 909 68 7ms 27 Aug 2022 363rd ovs-code 🇩🇪 909 75 67ms 12 Sep 2024 363rd Kacarott 🇦🇺 909 75 62ms 13 Sep 2024 365th sean-niemann 🇺🇸 908 54 135ms 6 Aug 2024 365th Steffan153 🇫🇮 908 54 133ms 6 Aug 2024 365th lukegustafson 🇺🇸 908 54 128ms 7 Aug 2024 365th pardouin 🇫🇷 908 54 125ms 8 Aug 2024 365th Lydxn 🇨🇦 908 54 126ms 9 Aug 2024 370th Shanethegamer 🇺🇸 908 61 4ms 9 Oct 2023 371st sean-niemann 🇺🇸 908 66 112ms 29 May 2025 372nd GrayJoKing 🇦🇺 908 71 321ms 10 Aug 2023 373rd sean-niemann 🇺🇸 906 75 5ms 23 Dec 2025 373rd Steffan153 🇫🇮 906 75 5ms 11 Feb 2026 375th primo-ppcg 🇹🇭 906 93 32ms 7 May 2022 375th AlephSquirrel 906 93 29ms 21 Jan 2023 375th kg583 🇺🇸 906 93 32ms 26 Dec 2024 375th CLOStrophobic 🇮🇹 906 93 43ms 17 Jan 2025 375th edsrzf 🇳🇿 906 93 36ms 3 Jul 2025 380th JayXon 🇺🇸 906 105 360ms 4 Oct 2025 381st GolfingSuccess 🇬🇷 905 64 90ms 14 Dec 2024 381st MeWhenI 🇻🇦 905 64 93ms 24 Dec 2024 381st GrayJoKing 🇦🇺 905 64 88ms 25 Nov 2025 384th Steffan153 🇫🇮 905 81 1,429ms 7 days ago 385th edsrzf 🇳🇿 904 52 1,094ms 9 Mar 2026 386th KrausRaus 🇺🇸 904 59 11ms 4 May 2022 386th voytxt 🇨🇿 904 59 10ms 4 May 2022 386th KingSkyrock 🇺🇸 904 59 14ms 18 May 2022 386th ZakkkkAttackkkk 🇵🇭 904 59 11ms 14 Jul 2022 386th aksyristos 904 59 12ms 28 Oct 2022 386th nstearns96 🇬🇧 904 59 12ms 28 Nov 2022 386th janbehrens 🇩🇪 904 59 12ms 17 May 2023 386th Shanethegamer 🇺🇸 904 59 15ms 25 May 2023 386th Maznek 904 59 11ms 26 Jun 2023 386th SpiritAxolotl 🇺🇸 904 59 11ms 20 Mar 2024 386th Andrey-Plotnikov 904 59 11ms 19 May 2024 386th emgordon154 904 59 13ms 5 Aug 2024 386th duckyluuk 🇳🇱 904 59 12ms 3 Oct 2024 386th lifthrasiir 🇰🇷 904 59 11ms 23 Nov 2024 386th fuzzylojik-golf 🇺🇸 904 59 13ms 1 Jun 2025 First Prev 321–400 of 3,751 Next Last