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 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 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 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 Hilbert Curve Mandelbrot 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 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 Hilbert Curve Mandelbrot 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 294th sean-niemann 🇺🇸 928 60 10 Jul 2024 302nd MeWhenI 🇻🇦 928 68 23 Feb 2023 302nd JayXon 🇺🇸 928 68 4 Mar 2025 304th Lydxn 🇨🇦 928 70 17 Oct 2022 304th JayXon 🇺🇸 928 70 17 Oct 2022 304th GrayJoKing 🇦🇺 928 70 13 Jul 2024 304th FlyingPenguin223 928 70 4 Oct 2024 304th jipsong 🇩🇪 928 70 5 Apr 2025 309th sisyphus-ppcg 🇦🇺 927 50 31 Jan 2023 309th saito-ta 🇯🇵 927 50 12 Dec 2024 311th JayXon 🇺🇸 927 57 19 Aug 2024 312th Steffan153 🇫🇮 927 67 19 Aug 2024 312th JayXon 🇺🇸 927 67 19 Aug 2024 314th scpchicken 🇵🇼 925 72 4 May 2022 314th sultan 925 72 6 Jun 2022 314th annaproxy 925 72 22 Aug 2022 314th BlankSpruce 925 72 9 Sep 2022 314th ValentinCassayre 925 72 8 Oct 2022 314th commandblockguy 🇺🇸 925 72 3 Nov 2022 314th mathb0y512 925 72 1 Dec 2022 314th NoahBolohan 🇨🇦 925 72 28 Feb 2023 314th neel11235813 925 72 8 Mar 2023 314th Kacarott 🇦🇺 925 72 24 Mar 2023 314th Fracture17 925 72 8 Apr 2023 314th ayushdewan 925 72 7 May 2023 314th PeterTillema 🇳🇱 925 72 17 Oct 2023 314th Glinte 925 72 11 Dec 2023 314th nanatsu8 925 72 11 May 2024 314th thej10n 925 72 12 Jun 2024 314th duckyluuk 🇳🇱 925 72 13 Jun 2024 314th fuzzylojik-golf 🇺🇸 925 72 14 Feb 2025 314th tobeannouncd 925 72 25 Apr 2025 333rd Bubbler-4 923 33 6 May 2022 333rd rak1507 🇬🇧 923 33 8 May 2022 333rd ngn 🇧🇬 923 33 11 May 2022 333rd zacjl 923 33 3 days ago 333rd GrayJoKing 🇦🇺 923 33 2 days ago 338th Luca2812 923 127 12 Dec 2022 338th plastic-bottle 923 127 13 Sep 2023 338th h3ra993huskp 🇯🇵 923 127 17 Sep 2023 338th tigerdan2 🇩🇪 923 127 19 Dec 2023 342nd btnlq 922 59 6 Nov 2022 343rd ovs-code 🇩🇪 922 67 13 Dec 2022 343rd Steffan153 🇫🇮 922 67 18 Dec 2022 343rd Lydxn 🇨🇦 922 67 4 Feb 2023 343rd sean-niemann 🇺🇸 922 67 7 Mar 2025 347th Lydxn 🇨🇦 922 90 6 May 2022 348th Lydxn 🇨🇦 922 108 6 May 2022 348th JayXon 🇺🇸 922 108 9 May 2022 350th nwellnhof 🇩🇪 921 51 4 May 2022 350th primo-ppcg 🇹🇭 921 51 6 May 2022 350th radarek 🇵🇱 921 51 8 May 2022 350th janlelis 921 51 10 May 2022 350th Natanaelel 🇸🇪 921 51 2 Jun 2022 350th sean-niemann 🇺🇸 921 51 7 Mar 2025 356th uiamn 921 58 6 Sep 2022 356th 5quiwyrm 921 58 29 Sep 2022 356th alasdair-greenland 921 58 13 Jan 2023 359th Herbert00709 🇵🇱 920 92 17 Nov 2023 359th 4QT0R 920 92 23 Nov 2023 359th ovs-code 🇩🇪 920 92 3 Jun 2024 362nd xnor-gate 919 63 20 Jan 2025 363rd MichalMarsalek 🇨🇿 919 71 5 May 2022 363rd Lydxn 🇨🇦 919 71 7 May 2022 363rd GrayJoKing 🇦🇺 919 71 8 May 2022 363rd JayXon 🇺🇸 919 71 8 May 2022 363rd Steffan153 🇫🇮 919 71 9 Mar 2023 363rd Shanethegamer 🇺🇸 919 71 15 May 2023 363rd MeWhenI 🇻🇦 919 71 8 Aug 2023 363rd sean-niemann 🇺🇸 919 71 9 Jan 2025 371st Steffan153 🇫🇮 919 76 15 May 2023 371st primo-ppcg 🇹🇭 919 76 15 May 2023 371st Lydxn 🇨🇦 919 76 22 May 2023 371st GrayJoKing 🇦🇺 919 76 24 Aug 2023 375th tomtheisen 🇺🇸 918 85 10 Apr 2025 Prev 301–375 of 3,079 Next