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 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 Hilbert Curve 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 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 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 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 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 Hilbert Curve 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 744th lolgeny 893 93 22 Feb 2025 752nd Steffan153 🇫🇮 892 52 31 Dec 2022 753rd Shanethegamer 🇺🇸 892 61 31 Oct 2022 753rd MeWhenI 🇻🇦 892 61 4 Nov 2022 755th GolfingSuccess 🇬🇷 892 95 5 May 2022 755th Alex-x90 🇺🇸 892 95 4 Dec 2022 755th Mandrzejy 🇵🇱 892 95 22 Mar 2024 758th KatieLG 🇬🇧 891 60 4 May 2022 758th ScottHamper 891 60 5 May 2022 758th Re-Adventures 🇮🇳 891 60 5 May 2022 758th 0x24a537r9 891 60 29 Jul 2022 758th stefangabos 🇷🇴 891 60 19 Aug 2022 758th eranws 891 60 10 Sep 2022 758th GeorgeStechman 🇬🇧 891 60 26 Sep 2022 758th BloodStormKnight 891 60 15 Oct 2022 758th dzshn 891 60 3 Dec 2022 758th biocommando 🇫🇮 891 60 20 Dec 2022 758th Betuaredead 891 60 5 Jan 2023 758th piano-miles 891 60 16 Jan 2023 758th Yewzir 🇧🇪 891 60 12 Feb 2023 758th shellbertt 🇨🇦 891 60 26 Feb 2023 758th zakariamouhid 891 60 20 May 2023 758th raphaelimahorn 891 60 23 Aug 2023 758th jbt 891 60 25 Dec 2023 758th olleicua 🇺🇸 891 60 15 Feb 2024 758th HumanoidCPU 891 60 3 May 2024 758th dokutan 891 60 13 Aug 2024 758th LostSyntax21 🇬🇧 891 60 10 Sep 2024 758th xyangst 891 60 28 Sep 2024 758th a6166231 🇨🇳 891 60 15 May 2025 758th Protothor 891 60 8 Jul 2025 758th SebassNoob 891 60 19 days ago 783rd lynn 891 65 5 May 2022 783rd GrayJoKing 🇦🇺 891 65 5 May 2022 783rd Sakisan 🇧🇪 891 65 6 May 2022 783rd JayXon 🇺🇸 891 65 17 Oct 2022 783rd Steffan153 🇫🇮 891 65 12 Nov 2022 783rd tobeannouncd 891 65 25 Apr 2025 783rd sean-niemann 🇺🇸 891 65 9 Jun 2025 790th stefangimmillaro 891 71 2 Oct 2022 790th Steffan153 🇫🇮 891 71 23 Feb 2023 790th Shanethegamer 🇺🇸 891 71 16 May 2023 790th sean-niemann 🇺🇸 891 71 12 Jul 2024 794th sean-niemann 🇺🇸 891 73 12 Jul 2024 795th canissimia 🇦🇶 891 110 20 Feb 2023 796th DialFrost 🇸🇬 890 95 10 Dec 2024 797th primo-ppcg 🇹🇭 889 52 5 May 2022 797th dvargas46 🇺🇸 889 52 22 Dec 2022 799th JayXon 🇺🇸 889 74 14 Nov 2024 800th GrayJoKing 🇦🇺 889 77 13 Sep 2024 801st stefangimmillaro 889 112 26 Sep 2023 801st kkoenig 889 112 4 Jan 2024 803rd ovs-code 🇩🇪 889 151 9 Sep 2023 803rd Yewzir 🇧🇪 889 151 21 May 2024 805th martinnorling 🇸🇪 888 75 5 May 2022 805th Trunksistor 🇫🇷 888 75 9 May 2022 805th bbakersmith 888 75 28 Jun 2022 805th bsoyka 🇺🇸 888 75 16 Jul 2022 805th P-Quentin 🇫🇷 888 75 3 Aug 2022 805th julienlamoureux78 888 75 12 Aug 2022 805th dzshn 888 75 16 Aug 2022 805th NerdyMcNerd42 888 75 20 Aug 2022 805th destofr 888 75 25 Aug 2022 805th vishwathg 888 75 10 Oct 2022 805th nkoppel 888 75 19 Oct 2022 805th AZ9tumas 888 75 23 Oct 2022 805th EthanGrant1 888 75 7 Nov 2022 805th Omega65536 🇩🇪 888 75 24 Nov 2022 805th b10011 🇫🇮 888 75 3 Jan 2023 805th 4ndyJ 🇬🇧 888 75 3 Jan 2023 805th randolchance 888 75 8 Jan 2023 805th LeeCamp 888 75 12 Jan 2023 805th hellwue 888 75 15 Feb 2023 805th nandanjp 888 75 29 Mar 2023 805th kaptsanovb 888 75 20 Apr 2023 Prev 751–825 of 3,280 Next
