Leap Years in JavaScript in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 308th smclaughlin-cf 755 53 11ms 20 Feb 2025 308th MadScience137 755 53 10ms 24 Sep 2025 308th gigaprofisi 🇺🇸 755 53 9ms 4 Nov 2025 324th rowboat1 741 54 9ms 16 Feb 2019 324th paudr 741 54 10ms 5 May 2019 324th VFDan 741 54 16ms 22 May 2019 324th cryosis7 741 54 10ms 20 Jun 2019 324th fabrice404 741 54 10ms 16 Jul 2020 324th itiievskyi 🇺🇦 741 54 10ms 5 Aug 2020 324th i-machine 741 54 13ms 28 Aug 2020 324th DizzyLeChuck 741 54 12ms 9 Sep 2020 324th eecb 741 54 12ms 24 Nov 2020 324th mrmena 🇦🇺 741 54 11ms 10 Jul 2021 324th mobibluman 741 54 11ms 27 Aug 2021 324th johanrosenson 741 54 11ms 8 Dec 2021 324th kevdah 741 54 10ms 8 May 2022 324th Ripick 741 54 10ms 13 Aug 2022 324th msbranicky 741 54 13ms 6 Jul 2023 324th JakeReadman 741 54 13ms 18 Jul 2024 324th hippopotam00sehead 🇨🇦 741 54 9ms 11 Sep 2024 341st nastion 727 55 13ms 15 Jan 2019 341st pg98 727 55 10ms 4 Sep 2019 341st sage-fulcher 727 55 11ms 20 Apr 2020 341st Pablo-No 727 55 11ms 15 Jul 2020 341st elizj3 🇵🇱 727 55 9ms 29 Oct 2020 341st aaronze 🇦🇺 727 55 10ms 26 Apr 2021 341st lukalotl 727 55 10ms 24 May 2021 341st berdzi 727 55 11ms 15 Mar 2022 341st delgoodie 727 55 11ms 26 Aug 2022 341st Sora1248 🇩🇪 727 55 11ms 19 Feb 2023 341st logancammish 727 55 14ms 21 Mar 2023 341st pandaninjas 727 55 10ms 9 Aug 2023 341st yb1yb1 727 55 10ms 7 Oct 2024 354th 7JoeEdwards 714 56 11ms 1 Aug 2019 354th jmhowl 714 56 10ms 17 Dec 2019 354th RonnyPumaricra 714 56 10ms 25 Nov 2020 354th logancammish2 714 56 11ms 5 Feb 2021 354th kayahr 714 56 10ms 18 Jun 2021 354th RegularSalamander 714 56 11ms 29 Jan 2022 354th TheCod-r 🇦🇶 714 56 11ms 5 Mar 2022 354th GeorgeStechman 🇬🇧 714 56 11ms 23 May 2022 354th Protothor 714 56 11ms 14 Jun 2025 354th 52525rr 714 56 10ms 25 Feb 2026 364th jackkav 702 57 10ms 26 Dec 2018 364th paavohuhtala 702 57 10ms 4 Jan 2020 364th lowlighter 702 57 10ms 1 Nov 2020 364th taimanh229 702 57 10ms 31 Dec 2020 364th DaCuteRaccoon 702 57 10ms 21 Apr 2022 364th Smetalo 702 57 12ms 25 Aug 2022 364th StronkCheese 🇺🇸 702 57 11ms 27 Jan 2023 364th AZ9tumas 702 57 11ms 11 Feb 2023 364th 1231234md5 🇨🇳 702 57 11ms 11 Dec 2023 364th andrewl64 702 57 11ms 18 Jan 2024 364th nakatchi 702 57 10ms 26 Feb 2024 364th Europe2048 702 57 11ms 27 Sep 2024 364th TheAtrossian 702 57 10ms 5 Jan 2025 364th madeforlosers 702 57 11ms 20 Oct 2025 378th dcure73 690 58 9ms 7 Jun 2019 378th GitaMonster 690 58 11ms 31 Aug 2020 378th josh-h-90 690 58 11ms 2 Feb 2021 378th kozgera 690 58 11ms 6 Apr 2021 378th arrudagates 690 58 10ms 24 Jun 2021 378th p-vf 🇨🇭 690 58 11ms 13 Oct 2021 378th Great-Gamer 690 58 10ms 25 Feb 2022 378th mckymsh 690 58 9ms 27 Feb 2022 378th Ploverums 690 58 10ms 28 Sep 2022 378th genius257 690 58 13ms 3 Oct 2022 378th jorbDehmel 🇺🇸 690 58 11ms 27 Feb 2023 378th InspectorBoat 690 58 11ms 25 Oct 2023 390th WIPocket 678 59 11ms 30 Dec 2018 390th blucky36 678 59 10ms 27 Feb 2019 390th wrauner 678 59 10ms 16 Aug 2019 390th Matojeje 678 59 10ms 12 Dec 2019 390th 8davidb8 678 59 10ms 10 Jun 2020 390th KaeruCT 678 59 10ms 7 Oct 2020 390th Secozzi 678 59 10ms 20 Oct 2020 390th ffflorian 678 59 10ms 23 Nov 2020 390th josephabbey 678 59 11ms 6 Apr 2022 390th bwenstar 678 59 12ms 11 Aug 2022 390th WoodStuff 🇵🇱 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