Collatz in JavaScript 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 Binary Lambda Calculus Calendar Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA 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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 Binary Lambda Calculus Calendar Connect Four Crossword 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 71st nstearns96 🇬🇧 932 59 10ms 28 Nov 2022 71st janbehrens 🇩🇪 932 59 10ms 17 May 2023 71st Shanethegamer 🇺🇸 932 59 11ms 25 May 2023 71st Maznek 932 59 10ms 26 Jun 2023 71st SpiritAxolotl 🇺🇸 932 59 10ms 20 Mar 2024 71st Andrey-Plotnikov 932 59 10ms 19 May 2024 71st emgordon154 932 59 10ms 5 Aug 2024 71st duckyluuk 🇳🇱 932 59 11ms 3 Oct 2024 71st lifthrasiir 🇰🇷 932 59 13ms 23 Nov 2024 71st fuzzylojik-golf 🇺🇸 932 59 10ms 1 Jun 2025 71st acollett89 932 59 11ms 17 Jun 2025 71st iczelia 🇩🇪 932 59 14ms 23 Sep 2025 88th KatieLG 🇬🇧 917 60 13ms 4 May 2022 88th ScottHamper 917 60 10ms 5 May 2022 88th Re-Adventures 🇮🇳 917 60 10ms 5 May 2022 88th 0x24a537r9 917 60 10ms 29 Jul 2022 88th stefangabos 🇷🇴 917 60 10ms 19 Aug 2022 88th eranws 917 60 10ms 10 Sep 2022 88th GeorgeStechman 🇬🇧 917 60 10ms 26 Sep 2022 88th BloodStormKnight 917 60 10ms 15 Oct 2022 88th dzshn 917 60 10ms 3 Dec 2022 88th biocommando 🇫🇮 917 60 10ms 20 Dec 2022 88th Betuaredead 917 60 9ms 5 Jan 2023 88th piano-miles 917 60 10ms 16 Jan 2023 88th Yewzir 🇧🇪 917 60 10ms 12 Feb 2023 88th shellbertt 🇨🇦 917 60 11ms 26 Feb 2023 88th zakariamouhid 917 60 10ms 20 May 2023 88th raphaelimahorn 917 60 10ms 23 Aug 2023 88th jbt 917 60 10ms 25 Dec 2023 88th olleicua 🇺🇸 917 60 10ms 15 Feb 2024 88th HumanoidCPU 917 60 9ms 3 May 2024 88th dokutan 917 60 11ms 13 Aug 2024 88th LostSyntax21 🇬🇧 917 60 11ms 10 Sep 2024 88th xyangst 917 60 11ms 28 Sep 2024 88th a6166231 🇨🇳 917 60 9ms 15 May 2025 88th Protothor 917 60 11ms 8 Jul 2025 88th SebassNoob 917 60 10ms 5 Aug 2025 88th Yax42 🇫🇷 917 60 9ms 5 Sep 2025 88th levinwinter 917 60 9ms 22 days ago 115th c0d3-4-F00d 🇩🇪 902 61 9ms 6 May 2022 115th jackkav 902 61 10ms 26 Jun 2022 115th TechNolaByte 902 61 10ms 6 Jul 2022 115th Heathcorp 🇦🇺 902 61 10ms 17 Jul 2022 115th C0de5mith 🇺🇸 902 61 10ms 3 Aug 2022 115th sebipopa 🇷🇴 902 61 11ms 18 Aug 2022 115th moikaturns 🇬🇧 902 61 11ms 25 Sep 2022 115th FlorianCassayre 🇫🇷 902 61 11ms 27 Sep 2022 115th Mazn3k 902 61 10ms 1 Feb 2023 115th tvcv901 902 61 10ms 22 Mar 2023 115th unfinishedprogram 902 61 10ms 19 Jul 2023 115th snoozingnewt 🇺🇸 902 61 11ms 23 Sep 2023 115th funnyboy-roks 902 61 9ms 9 May 2024 115th bac0id 902 61 11ms 29 Jun 2024 115th madex 🇩🇪 902 61 11ms 9 Jul 2024 115th FortuiteMan 🇫🇷 902 61 10ms 10 Oct 2024 115th RobertHoeh 902 61 10ms 5 Apr 2025 115th LvLError 902 61 10ms 29 May 2025 115th Lv0Sys 🇵🇱 902 61 10ms 30 May 2025 115th miles-evan 902 61 10ms 5 Aug 2025 115th alexsave 902 61 14ms 13 Oct 2025 136th Setvizan 887 62 10ms 12 Jan 2023 136th GreenBeansAgainstVeganism 887 62 11ms 13 Jan 2023 136th arctouch-cristiannevianna 887 62 13ms 3 Apr 2023 136th Corxldyphik 887 62 13ms 11 Apr 2023 136th Blockyheadman 887 62 10ms 1 Nov 2023 136th ollyspooner 887 62 10ms 22 Nov 2023 136th itserasmus 887 62 13ms 25 Jan 2024 136th Jacob385 887 62 10ms 13 Mar 2024 136th junkondo-jp 887 62 10ms 30 Jun 2024 136th ShiraJoseph 🇺🇸 887 62 11ms 1 Mar 2025 146th randolchance 873 63 10ms 8 Jan 2023 146th CatsAreFluffy 873 63 10ms 18 Feb 2023 146th amiralitaheri 873 63 10ms 23 Feb 2023 146th RuyiLi 873 63 11ms 1 Apr 2023 146th TaserTheFox 🇺🇸 873 63 10ms 25 May 2023 First Prev 76–150 of 268 Next Last