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 Hilbert Curve 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 Minesweeper 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 Trinomial Triangle 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau 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 Hilbert Curve 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 Minesweeper 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 Trinomial Triangle 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 448th sean-niemann 🇺🇸 898 72 112ms 7 Mar 2025 452nd Steffan153 🇫🇮 897 82 44ms 1 Apr 2023 452nd sean-niemann 🇺🇸 897 82 43ms 12 Jul 2024 454th albanian-laundromat 896 55 965ms 22 Sep 2025 455th sean-niemann 🇺🇸 896 108 240ms 25 May 2024 455th GolfingSuccess 🇬🇷 896 108 291ms 6 Sep 2025 457th Lydxn 🇨🇦 895 69 7ms 12 Sep 2022 457th GrayJoKing 🇦🇺 895 69 7ms 12 Sep 2022 457th btnlq 895 69 7ms 24 Sep 2022 460th trinityy-7 894 69 2ms 7 Aug 2025 461st SirBogman 🇺🇸 892 50 414ms 5 May 2022 461st nwellnhof 🇩🇪 892 50 429ms 3 Jun 2022 461st Lydxn 🇨🇦 892 50 415ms 15 Aug 2022 461st Steffan153 🇫🇮 892 50 448ms 9 Aug 2024 465th MichalMarsalek 🇨🇿 892 87 334ms 5 May 2022 465th Kloppermand 🇩🇰 892 87 343ms 7 Oct 2022 465th bwat2 892 87 321ms 6 Apr 2023 468th GrayJoKing 🇦🇺 892 91 31ms 19 Jan 2023 469th Lydxn 🇨🇦 891 72 302ms 16 Jul 2023 470th edsrzf 🇳🇿 891 78 12ms 26 Oct 2024 470th kg583 🇺🇸 891 78 11ms 25 Sep 2025 472nd p-zubieta 890 48 267ms 6 Mar 2024 473rd oeb25 890 93 124ms 16 May 2022 473rd snobee 🇨🇦 890 93 123ms 8 Dec 2022 473rd logvp 890 93 125ms 2 Jan 2024 473rd elgan65536 890 93 122ms 5 Mar 2024 473rd smartiel 890 93 136ms 12 Aug 2024 473rd trist224 🇫🇷 890 93 143ms 12 Aug 2024 473rd nullie 890 93 135ms 19 Dec 2024 473rd lolgeny 890 93 124ms 22 Feb 2025 481st GolfingSuccess 🇬🇷 890 95 65ms 5 May 2022 481st Alex-x90 🇺🇸 890 95 69ms 4 Dec 2022 481st Mandrzejy 🇵🇱 890 95 62ms 22 Mar 2024 484th Ripick 889 73 126ms 8 May 2023 485th Steffan153 🇫🇮 889 80 40ms 15 Nov 2022 485th Steffan153 🇫🇮 889 80 26ms 11 Dec 2023 485th error256 889 80 130ms 8 Apr 2025 488th KatieLG 🇬🇧 888 60 11ms 4 May 2022 488th ScottHamper 888 60 10ms 5 May 2022 488th Re-Adventures 🇮🇳 888 60 12ms 5 May 2022 488th 0x24a537r9 888 60 11ms 29 Jul 2022 488th stefangabos 🇷🇴 888 60 10ms 19 Aug 2022 488th eranws 888 60 10ms 10 Sep 2022 488th GeorgeStechman 🇬🇧 888 60 10ms 26 Sep 2022 488th BloodStormKnight 888 60 11ms 15 Oct 2022 488th dzshn 888 60 12ms 3 Dec 2022 488th biocommando 🇫🇮 888 60 9ms 20 Dec 2022 488th Betuaredead 888 60 10ms 5 Jan 2023 488th piano-miles 888 60 11ms 16 Jan 2023 488th Yewzir 🇧🇪 888 60 10ms 12 Feb 2023 488th shellbertt 🇨🇦 888 60 10ms 26 Feb 2023 488th zakariamouhid 888 60 10ms 20 May 2023 488th raphaelimahorn 888 60 10ms 23 Aug 2023 488th jbt 888 60 11ms 25 Dec 2023 488th olleicua 🇺🇸 888 60 11ms 15 Feb 2024 488th HumanoidCPU 888 60 11ms 3 May 2024 488th dokutan 888 60 13ms 13 Aug 2024 488th LostSyntax21 🇬🇧 888 60 10ms 10 Sep 2024 488th xyangst 888 60 10ms 28 Sep 2024 488th a6166231 🇨🇳 888 60 10ms 15 May 2025 488th Protothor 888 60 10ms 8 Jul 2025 488th SebassNoob 888 60 11ms 5 Aug 2025 488th Yax42 🇫🇷 888 60 11ms 5 Sep 2025 488th levinwinter 888 60 11ms 11 days ago 515th MeWhenI 🇻🇦 888 109 282ms 9 Feb 2023 516th m-tkach 🇺🇦 888 117 27ms 7 May 2022 516th Lydxn 🇨🇦 888 117 28ms 7 May 2022 518th P-Quentin 🇫🇷 887 63 19ms 3 Aug 2022 518th kaptsanovb 887 63 25ms 20 Apr 2023 518th fkantelberg 887 63 21ms 14 Jul 2023 518th snoozingnewt 🇺🇸 887 63 28ms 10 Sep 2023 518th VictorStenvers 🇳🇱 887 63 24ms 13 Nov 2023 518th 1231234md5 🇨🇳 887 63 21ms 14 Dec 2023 518th f-tucker 887 63 35ms 6 Feb 2024 518th JunkIce 887 63 23ms 24 Nov 2024 First Prev 451–525 of 3,396 Next Last
