Collatz in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Morse Decoder Morse Encoder 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Morse Decoder Morse Encoder 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 301st stefangimmillaro 931 126 4 May 2022 301st Irratix 🇳🇱 931 126 4 May 2022 301st MeWhenI 🇻🇦 931 126 4 May 2022 301st janbehrens 🇩🇪 931 126 4 May 2022 301st shellbertt 🇨🇦 931 126 4 May 2022 301st inventshah 931 126 4 May 2022 301st m-tkach 🇺🇦 931 126 4 May 2022 301st sean-niemann 🇺🇸 931 126 4 May 2022 301st nwellnhof 🇩🇪 931 126 4 May 2022 301st Shanethegamer 🇺🇸 931 126 4 May 2022 301st ScottHamper 931 126 5 May 2022 301st ovs-code 🇩🇪 931 126 5 May 2022 301st 5quiwyrm 931 126 4 Sep 2022 301st KrausRaus 🇺🇸 931 126 9 Sep 2022 301st Betuaredead 931 126 5 Jan 2023 301st annaproxy 931 126 7 Jan 2023 301st Yewzir 🇧🇪 931 126 12 Feb 2023 301st Jacob385 931 126 4 Mar 2024 301st dokutan 931 126 17 Mar 2024 301st eMGeeneer 931 126 15 Jun 2024 301st mrondon8 931 126 2 Dec 2024 301st plastic-bottle 931 126 11 days ago 323rd GrayJoKing 🇦🇺 930 56 15 Jan 2024 323rd AlephSquirrel 930 56 21 Jan 2024 325th ovs-code 🇩🇪 930 60 9 Oct 2023 325th GrayJoKing 🇦🇺 930 60 11 Oct 2023 325th Lydxn 🇨🇦 930 60 11 Oct 2023 325th GolfingSuccess 🇬🇷 930 60 16 Nov 2023 325th Steffan153 🇫🇮 930 60 28 Jan 2024 325th JayXon 🇺🇸 930 60 29 Jan 2024 325th rucin93 🇵🇱 930 60 10 Jul 2024 325th sean-niemann 🇺🇸 930 60 10 Jul 2024 333rd Natanaelel 🇸🇪 929 28 22 Jul 2022 333rd SirBogman 🇺🇸 929 28 17 Sep 2022 335th Lydxn 🇨🇦 929 70 17 Oct 2022 335th JayXon 🇺🇸 929 70 17 Oct 2022 335th GrayJoKing 🇦🇺 929 70 13 Jul 2024 335th FlyingPenguin223 929 70 4 Oct 2024 335th jipsong 🇩🇪 929 70 5 Apr 2025 340th sisyphus-ppcg 🇦🇺 928 50 31 Jan 2023 340th saito-ta 🇯🇵 928 50 12 Dec 2024 342nd Steffan153 🇫🇮 928 67 19 Aug 2024 342nd JayXon 🇺🇸 928 67 19 Aug 2024 344th JayXon 🇺🇸 927 57 19 Aug 2024 345th roavin 927 84 23 Jun 2022 345th tkr-sh 🇫🇷 927 84 20 Aug 2022 345th Nickmiste 927 84 9 Nov 2022 345th Matgc04 927 84 19 May 2023 345th postie77 927 84 19 May 2023 345th ertz1ertz 927 84 13 Sep 2024 345th Grabnukebomb 927 84 13 Sep 2024 345th Shanethegamer 🇺🇸 927 84 9 Apr 2025 345th HumanoidCPU 927 84 10 Apr 2025 345th annaproxy 927 84 11 Apr 2025 345th Re-Adventures 🇮🇳 927 84 15 Apr 2025 345th janbehrens 🇩🇪 927 84 17 Apr 2025 357th scpchicken 🇵🇼 926 72 4 May 2022 357th sultan 926 72 6 Jun 2022 357th annaproxy 926 72 22 Aug 2022 357th BlankSpruce 926 72 9 Sep 2022 357th ValentinCassayre 926 72 8 Oct 2022 357th commandblockguy 🇺🇸 926 72 3 Nov 2022 357th mathb0y512 926 72 1 Dec 2022 357th NoahBolohan 🇨🇦 926 72 28 Feb 2023 357th neel11235813 926 72 8 Mar 2023 357th Kacarott 🇦🇺 926 72 24 Mar 2023 357th Fracture17 926 72 8 Apr 2023 357th ayushdewan 926 72 7 May 2023 357th PeterTillema 🇳🇱 926 72 17 Oct 2023 357th Glinte 926 72 11 Dec 2023 357th nanatsu8 926 72 11 May 2024 357th thej10n 926 72 12 Jun 2024 357th duckyluuk 🇳🇱 926 72 13 Jun 2024 357th tobeannouncd 926 72 25 Apr 2025 357th YAJUE114514 926 72 23 days ago Prev 301–375 of 3,320 Next