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 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 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 450th edsrzf 🇳🇿 895 81 6 Jan 2025 452nd MeWhenI 🇻🇦 894 63 5 May 2022 453rd emplv 🇱🇻 894 110 5 May 2022 453rd Shanethegamer 🇺🇸 894 110 21 Nov 2023 453rd edsrzf 🇳🇿 894 110 28 Nov 2024 453rd targrik 894 110 4 days ago 457th Lydxn 🇨🇦 893 69 12 Sep 2022 457th GrayJoKing 🇦🇺 893 69 12 Sep 2022 457th btnlq 893 69 24 Sep 2022 460th Steffan153 🇫🇮 893 82 1 Apr 2023 460th sean-niemann 🇺🇸 893 82 12 Jul 2024 462nd edsrzf 🇳🇿 893 83 14 Jan 2025 462nd kg583 🇺🇸 893 83 14 Feb 2025 464th SiestaGuru 892 131 9 Jan 2023 464th HumanoidCPU 892 131 7 May 2024 466th SirBogman 🇺🇸 891 50 5 May 2022 466th nwellnhof 🇩🇪 891 50 3 Jun 2022 466th Lydxn 🇨🇦 891 50 15 Aug 2022 466th Steffan153 🇫🇮 891 50 9 Aug 2024 470th MichalMarsalek 🇨🇿 891 87 5 May 2022 470th Kloppermand 🇩🇰 891 87 7 Oct 2022 470th bwat2 891 87 6 Apr 2023 473rd pabloferz 889 48 6 Mar 2024 474th edsrzf 🇳🇿 889 78 26 Oct 2024 475th oeb25 889 93 16 May 2022 475th snobee 🇨🇦 889 93 8 Dec 2022 475th logvp 889 93 2 Jan 2024 475th elgan65536 889 93 5 Mar 2024 475th smartiel 889 93 12 Aug 2024 475th trist224 🇫🇷 889 93 12 Aug 2024 475th nullie 889 93 19 Dec 2024 475th lolgeny 889 93 22 Feb 2025 483rd JayXon 🇺🇸 889 149 21 May 2024 484th Ripick 888 73 8 May 2023 485th GolfingSuccess 🇬🇷 888 95 5 May 2022 485th Alex-x90 🇺🇸 888 95 4 Dec 2022 485th Mandrzejy 🇵🇱 888 95 22 Mar 2024 488th KatieLG 🇬🇧 887 60 4 May 2022 488th ScottHamper 887 60 5 May 2022 488th Re-Adventures 🇮🇳 887 60 5 May 2022 488th 0x24a537r9 887 60 29 Jul 2022 488th stefangabos 🇷🇴 887 60 19 Aug 2022 488th eranws 887 60 10 Sep 2022 488th GeorgeStechman 🇬🇧 887 60 26 Sep 2022 488th BloodStormKnight 887 60 15 Oct 2022 488th dzshn 887 60 3 Dec 2022 488th biocommando 🇫🇮 887 60 20 Dec 2022 488th Betuaredead 887 60 5 Jan 2023 488th piano-miles 887 60 16 Jan 2023 488th Yewzir 🇧🇪 887 60 12 Feb 2023 488th shellbertt 🇨🇦 887 60 26 Feb 2023 488th zakariamouhid 887 60 20 May 2023 488th raphaelimahorn 887 60 23 Aug 2023 488th jbt 887 60 25 Dec 2023 488th olleicua 🇺🇸 887 60 15 Feb 2024 488th HumanoidCPU 887 60 3 May 2024 488th dokutan 887 60 13 Aug 2024 488th LostSyntax21 🇬🇧 887 60 10 Sep 2024 488th xyangst 887 60 28 Sep 2024 488th a6166231 🇨🇳 887 60 15 May 2025 511th GrayJoKing 🇦🇺 887 91 19 Jan 2023 512th P-Quentin 🇫🇷 886 63 3 Aug 2022 512th kaptsanovb 886 63 20 Apr 2023 512th fkantelberg 886 63 14 Jul 2023 512th snoozingnewt 🇺🇸 886 63 10 Sep 2023 512th VictorStenvers 🇳🇱 886 63 13 Nov 2023 512th 1231234md5 🇨🇳 886 63 14 Dec 2023 512th f-tucker 886 63 6 Feb 2024 512th JunkIce 886 63 24 Nov 2024 512th Kowalskiexe 🇵🇱 886 63 19 Apr 2025 512th 123mjb 886 63 2 Jun 2025 522nd Steffan153 🇫🇮 886 80 15 Nov 2022 522nd error256 886 80 8 Apr 2025 524th nwellnhof 🇩🇪 886 111 4 May 2022 524th stefangimmillaro 886 111 26 Sep 2023 Prev 451–525 of 3,148 Next
