Collatz in all languages in chars. 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 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 Topological Sort 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 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 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 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 Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 451st DialFrost 🇸🇬 896 77 27 Feb 2025 452nd MeWhenI 🇻🇦 895 71 20 Aug 2024 453rd MeWhenI 🇻🇦 894 63 5 May 2022 454th Steffan153 🇫🇮 894 82 1 Apr 2023 454th sean-niemann 🇺🇸 894 82 12 Jul 2024 456th emplv 🇱🇻 894 110 5 May 2022 456th Shanethegamer 🇺🇸 894 110 21 Nov 2023 456th edsrzf 🇳🇿 894 110 28 Nov 2024 456th targrik 894 110 30 Jun 2025 460th Lydxn 🇨🇦 893 69 12 Sep 2022 460th GrayJoKing 🇦🇺 893 69 12 Sep 2022 460th btnlq 893 69 24 Sep 2022 463rd edsrzf 🇳🇿 893 83 14 Jan 2025 463rd kg583 🇺🇸 893 83 14 Feb 2025 465th SiestaGuru 893 131 9 Jan 2023 465th HumanoidCPU 893 131 7 May 2024 467th SirBogman 🇺🇸 891 50 5 May 2022 467th nwellnhof 🇩🇪 891 50 3 Jun 2022 467th Lydxn 🇨🇦 891 50 15 Aug 2022 467th Steffan153 🇫🇮 891 50 9 Aug 2024 471st MichalMarsalek 🇨🇿 891 87 5 May 2022 471st Kloppermand 🇩🇰 891 87 7 Oct 2022 471st bwat2 891 87 6 Apr 2023 474th JayXon 🇺🇸 891 149 21 May 2024 475th pabloferz 889 48 6 Mar 2024 476th edsrzf 🇳🇿 889 78 26 Oct 2024 477th GrayJoKing 🇦🇺 889 91 19 Jan 2023 478th oeb25 889 93 16 May 2022 478th snobee 🇨🇦 889 93 8 Dec 2022 478th logvp 889 93 2 Jan 2024 478th elgan65536 889 93 5 Mar 2024 478th smartiel 889 93 12 Aug 2024 478th trist224 🇫🇷 889 93 12 Aug 2024 478th nullie 889 93 19 Dec 2024 478th lolgeny 889 93 22 Feb 2025 486th GolfingSuccess 🇬🇷 889 95 5 May 2022 486th Alex-x90 🇺🇸 889 95 4 Dec 2022 486th Mandrzejy 🇵🇱 889 95 22 Mar 2024 489th Ripick 888 73 8 May 2023 490th KatieLG 🇬🇧 887 60 4 May 2022 490th ScottHamper 887 60 5 May 2022 490th Re-Adventures 🇮🇳 887 60 5 May 2022 490th 0x24a537r9 887 60 29 Jul 2022 490th stefangabos 🇷🇴 887 60 19 Aug 2022 490th eranws 887 60 10 Sep 2022 490th GeorgeStechman 🇬🇧 887 60 26 Sep 2022 490th BloodStormKnight 887 60 15 Oct 2022 490th dzshn 887 60 3 Dec 2022 490th biocommando 🇫🇮 887 60 20 Dec 2022 490th Betuaredead 887 60 5 Jan 2023 490th piano-miles 887 60 16 Jan 2023 490th Yewzir 🇧🇪 887 60 12 Feb 2023 490th shellbertt 🇨🇦 887 60 26 Feb 2023 490th zakariamouhid 887 60 20 May 2023 490th raphaelimahorn 887 60 23 Aug 2023 490th jbt 887 60 25 Dec 2023 490th olleicua 🇺🇸 887 60 15 Feb 2024 490th HumanoidCPU 887 60 3 May 2024 490th dokutan 887 60 13 Aug 2024 490th LostSyntax21 🇬🇧 887 60 10 Sep 2024 490th xyangst 887 60 28 Sep 2024 490th a6166231 🇨🇳 887 60 15 May 2025 490th Protothor 887 60 22 days ago 514th P-Quentin 🇫🇷 887 63 3 Aug 2022 514th kaptsanovb 887 63 20 Apr 2023 514th fkantelberg 887 63 14 Jul 2023 514th snoozingnewt 🇺🇸 887 63 10 Sep 2023 514th VictorStenvers 🇳🇱 887 63 13 Nov 2023 514th 1231234md5 🇨🇳 887 63 14 Dec 2023 514th f-tucker 887 63 6 Feb 2024 514th JunkIce 887 63 24 Nov 2024 514th Kowalskiexe 🇵🇱 887 63 19 Apr 2025 514th 123mjb 887 63 2 Jun 2025 524th Steffan153 🇫🇮 886 80 15 Nov 2022 524th error256 886 80 8 Apr 2025 Prev 451–525 of 3,195 Next
