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 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 Chars Time 451st Steffan153 🇫🇮 897 80 11 Dec 2023 452nd Lydxn 🇨🇦 896 70 7 May 2022 453rd MeWhenI 🇻🇦 895 71 20 Aug 2024 454th MeWhenI 🇻🇦 894 63 5 May 2022 455th Steffan153 🇫🇮 894 82 1 Apr 2023 455th sean-niemann 🇺🇸 894 82 12 Jul 2024 457th emplv 🇱🇻 894 110 5 May 2022 457th Shanethegamer 🇺🇸 894 110 21 Nov 2023 457th edsrzf 🇳🇿 894 110 28 Nov 2024 457th targrik 894 110 30 Jun 2025 461st Lydxn 🇨🇦 893 69 12 Sep 2022 461st GrayJoKing 🇦🇺 893 69 12 Sep 2022 461st btnlq 893 69 24 Sep 2022 464th edsrzf 🇳🇿 893 83 14 Jan 2025 464th kg583 🇺🇸 893 83 14 Feb 2025 466th SiestaGuru 893 131 9 Jan 2023 466th HumanoidCPU 893 131 7 May 2024 468th SirBogman 🇺🇸 891 50 5 May 2022 468th nwellnhof 🇩🇪 891 50 3 Jun 2022 468th Lydxn 🇨🇦 891 50 15 Aug 2022 468th Steffan153 🇫🇮 891 50 9 Aug 2024 472nd MichalMarsalek 🇨🇿 891 87 5 May 2022 472nd Kloppermand 🇩🇰 891 87 7 Oct 2022 472nd bwat2 891 87 6 Apr 2023 475th JayXon 🇺🇸 891 149 21 May 2024 476th pabloferz 889 48 6 Mar 2024 477th edsrzf 🇳🇿 889 78 26 Oct 2024 478th GrayJoKing 🇦🇺 889 91 19 Jan 2023 479th oeb25 889 93 16 May 2022 479th snobee 🇨🇦 889 93 8 Dec 2022 479th logvp 889 93 2 Jan 2024 479th elgan65536 889 93 5 Mar 2024 479th smartiel 889 93 12 Aug 2024 479th trist224 🇫🇷 889 93 12 Aug 2024 479th nullie 889 93 19 Dec 2024 479th lolgeny 889 93 22 Feb 2025 487th GolfingSuccess 🇬🇷 889 95 5 May 2022 487th Alex-x90 🇺🇸 889 95 4 Dec 2022 487th Mandrzejy 🇵🇱 889 95 22 Mar 2024 490th KatieLG 🇬🇧 888 60 4 May 2022 490th ScottHamper 888 60 5 May 2022 490th Re-Adventures 🇮🇳 888 60 5 May 2022 490th 0x24a537r9 888 60 29 Jul 2022 490th stefangabos 🇷🇴 888 60 19 Aug 2022 490th eranws 888 60 10 Sep 2022 490th GeorgeStechman 🇬🇧 888 60 26 Sep 2022 490th BloodStormKnight 888 60 15 Oct 2022 490th dzshn 888 60 3 Dec 2022 490th biocommando 🇫🇮 888 60 20 Dec 2022 490th Betuaredead 888 60 5 Jan 2023 490th piano-miles 888 60 16 Jan 2023 490th Yewzir 🇧🇪 888 60 12 Feb 2023 490th shellbertt 🇨🇦 888 60 26 Feb 2023 490th zakariamouhid 888 60 20 May 2023 490th raphaelimahorn 888 60 23 Aug 2023 490th jbt 888 60 25 Dec 2023 490th olleicua 🇺🇸 888 60 15 Feb 2024 490th HumanoidCPU 888 60 3 May 2024 490th dokutan 888 60 13 Aug 2024 490th LostSyntax21 🇬🇧 888 60 10 Sep 2024 490th xyangst 888 60 28 Sep 2024 490th a6166231 🇨🇳 888 60 15 May 2025 490th Protothor 888 60 8 Jul 2025 490th SebassNoob 888 60 16 hours ago 515th Ripick 888 73 8 May 2023 516th P-Quentin 🇫🇷 887 63 3 Aug 2022 516th kaptsanovb 887 63 20 Apr 2023 516th fkantelberg 887 63 14 Jul 2023 516th snoozingnewt 🇺🇸 887 63 10 Sep 2023 516th VictorStenvers 🇳🇱 887 63 13 Nov 2023 516th 1231234md5 🇨🇳 887 63 14 Dec 2023 516th f-tucker 887 63 6 Feb 2024 516th JunkIce 887 63 24 Nov 2024 516th Kowalskiexe 🇵🇱 887 63 19 Apr 2025 516th 123mjb 887 63 2 Jun 2025 Prev 451–525 of 3,208 Next
