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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 Nim 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 Nim 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 300th Lydxn 🇨🇦 917 69 568ms 9 Apr 2023 302nd MichalMarsalek 🇨🇿 916 71 138ms 5 May 2022 302nd Lydxn 🇨🇦 916 71 140ms 7 May 2022 302nd GrayJoKing 🇦🇺 916 71 131ms 8 May 2022 302nd JayXon 🇺🇸 916 71 142ms 8 May 2022 302nd Steffan153 🇫🇮 916 71 135ms 9 Mar 2023 302nd Shanethegamer 🇺🇸 916 71 132ms 15 May 2023 302nd MeWhenI 🇻🇦 916 71 137ms 8 Aug 2023 302nd sean-niemann 🇺🇸 916 71 148ms 9 Jan 2025 310th xnor-gate 915 63 187ms 20 Jan 2025 311th Steffan153 🇫🇮 915 76 12ms 15 May 2023 311th primo-ppcg 🇹🇭 915 76 20ms 15 May 2023 311th Lydxn 🇨🇦 915 76 8ms 22 May 2023 311th GrayJoKing 🇦🇺 915 76 12ms 24 Aug 2023 311th kg583 🇺🇸 915 76 12ms 22 Feb 2026 316th pardouin 🇫🇷 914 72 2,662ms 21 May 2025 317th Steffan153 🇫🇮 914 76 24ms 19 Mar 2026 318th arctouch-cristiannevianna 914 85 418ms 3 Apr 2023 318th Widgitty 914 85 419ms 1 Sep 2023 318th tomtheisen 🇺🇸 914 85 407ms 10 Apr 2025 321st kmathis22 913 91 471ms 20 Nov 2025 322nd primo-ppcg 🇹🇭 912 61 7ms 6 May 2022 322nd sisyphus-ppcg 🇦🇺 912 61 10ms 14 Jul 2022 324th Lydxn 🇨🇦 912 70 143ms 7 May 2022 324th JayXon 🇺🇸 912 70 143ms 7 May 2022 326th annaproxy 912 78 112ms 13 Jan 2023 326th IanUtley 912 78 115ms 12 Nov 2023 326th GrayJoKing 🇦🇺 912 78 81ms 28 Nov 2023 329th Shanethegamer 🇺🇸 912 86 461ms 15 May 2023 329th JayXon 🇺🇸 912 86 481ms 15 May 2023 329th Steffan153 🇫🇮 912 86 460ms 16 May 2023 329th Lydxn 🇨🇦 912 86 456ms 16 May 2023 329th GrayJoKing 🇦🇺 912 86 461ms 11 Aug 2023 329th sean-niemann 🇺🇸 912 86 468ms 11 Jul 2024 335th Bubbler-4 911 33 2,528ms 6 May 2022 335th rak1507 🇬🇧 911 33 108ms 8 May 2022 335th ngn 🇧🇬 911 33 25ms 11 May 2022 335th zacjl 911 33 32ms 3 Jun 2025 335th GrayJoKing 🇦🇺 911 33 13ms 4 Jun 2025 335th HPWiz 🇳🇿 911 33 9ms 16 Nov 2025 341st Steffan153 🇫🇮 911 71 110ms 14 Oct 2022 341st Shanethegamer 🇺🇸 911 71 109ms 15 Oct 2022 341st stefangimmillaro 911 71 110ms 16 Oct 2022 341st MeWhenI 🇻🇦 911 71 113ms 16 Oct 2022 345th andersk 🇺🇸 911 91 133ms 25 Oct 2022 345th Super-Pizza 🇨🇦 911 91 120ms 4 Dec 2022 345th klixel 🇨🇦 911 91 124ms 20 May 2023 345th lynn 911 91 128ms 6 Jul 2024 345th edsrzf 🇳🇿 911 91 124ms 29 Nov 2024 345th DialFrost 🇸🇬 911 91 130ms 7 Apr 2025 345th elgan65536 🇺🇸 911 91 131ms 10 Feb 2026 345th fantaize 911 91 133ms 10 Mar 2026 345th snoozingnewt 🇨🇦 911 91 137ms 23 days ago 354th tailorspy 911 93 55ms 27 May 2024 354th sean-niemann 🇺🇸 911 93 62ms 9 Jun 2025 354th KasperKivimaeki 🇫🇮 911 93 63ms 26 Oct 2025 357th Lydxn 🇨🇦 910 47 273ms 5 May 2022 358th Steffan153 🇫🇮 910 71 67ms 11 days ago 359th Lydxn 🇨🇦 910 81 39ms 1 Apr 2023 360th JayXon 🇺🇸 909 53 431ms 17 Aug 2024 361st nai62 909 68 7ms 27 Aug 2022 362nd Shanethegamer 🇺🇸 908 61 4ms 9 Oct 2023 363rd ovs-code 🇩🇪 908 75 67ms 12 Sep 2024 363rd Kacarott 🇦🇺 908 75 62ms 13 Sep 2024 365th sean-niemann 🇺🇸 907 54 135ms 6 Aug 2024 365th Steffan153 🇫🇮 907 54 133ms 6 Aug 2024 365th lukegustafson 🇺🇸 907 54 128ms 7 Aug 2024 365th pardouin 🇫🇷 907 54 125ms 8 Aug 2024 365th Lydxn 🇨🇦 907 54 126ms 9 Aug 2024 370th sean-niemann 🇺🇸 907 66 114ms 29 May 2025 371st GrayJoKing 🇦🇺 906 71 321ms 10 Aug 2023 372nd GolfingSuccess 🇬🇷 905 64 90ms 14 Dec 2024 372nd MeWhenI 🇻🇦 905 64 93ms 24 Dec 2024 372nd GrayJoKing 🇦🇺 905 64 88ms 25 Nov 2025 372nd Steffan153 🇫🇮 905 64 84ms 33 hours ago 376th sean-niemann 🇺🇸 905 75 5ms 23 Dec 2025 376th Steffan153 🇫🇮 905 75 5ms 11 Feb 2026 378th primo-ppcg 🇹🇭 905 93 32ms 7 May 2022 378th AlephSquirrel 905 93 29ms 21 Jan 2023 378th kg583 🇺🇸 905 93 32ms 26 Dec 2024 378th CLOStrophobic 🇮🇹 905 93 43ms 17 Jan 2025 378th edsrzf 🇳🇿 905 93 36ms 3 Jul 2025 383rd JayXon 🇺🇸 905 105 360ms 4 Oct 2025 384th KrausRaus 🇺🇸 904 59 11ms 4 May 2022 384th voytxt 🇨🇿 904 59 10ms 4 May 2022 384th KingSkyrock 🇺🇸 904 59 14ms 18 May 2022 384th ZakkkkAttackkkk 🇵🇭 904 59 11ms 14 Jul 2022 384th aksyristos 904 59 12ms 28 Oct 2022 384th nstearns96 🇬🇧 904 59 12ms 28 Nov 2022 384th janbehrens 🇩🇪 904 59 12ms 17 May 2023 384th Shanethegamer 🇺🇸 904 59 15ms 25 May 2023 384th Maznek 904 59 11ms 26 Jun 2023 384th SpiritAxolotl 🇺🇸 904 59 11ms 20 Mar 2024 384th Andrey-Plotnikov 904 59 11ms 19 May 2024 384th emgordon154 904 59 13ms 5 Aug 2024 384th duckyluuk 🇳🇱 904 59 12ms 3 Oct 2024 384th lifthrasiir 🇰🇷 904 59 11ms 23 Nov 2024 384th fuzzylojik-golf 🇺🇸 904 59 13ms 1 Jun 2025 384th acollett89 904 59 15ms 17 Jun 2025 384th iczelia 🇩🇪 904 59 12ms 23 Sep 2025 First Prev 301–400 of 3,664 Next Last